MD1161Z - Method for selecting maternal wheat forms for hybrids with the high weight of grains in the ear - Google Patents
Method for selecting maternal wheat forms for hybrids with the high weight of grains in the ear Download PDFInfo
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- 235000013339 cereals Nutrition 0.000 title claims abstract description 68
- 230000008774 maternal effect Effects 0.000 title claims abstract description 25
- 241000209140 Triticum Species 0.000 title claims abstract description 13
- 235000021307 Triticum Nutrition 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000000611 regression analysis Methods 0.000 claims abstract description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 230000008775 paternal effect Effects 0.000 description 4
- 244000098338 Triticum aestivum Species 0.000 description 3
- 238000010219 correlation analysis Methods 0.000 description 3
- 230000003292 diminished effect Effects 0.000 description 2
- 238000009396 hybridization Methods 0.000 description 2
- 238000012417 linear regression Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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Abstract
Invenţia se referă la agricultură, şi anume la o metodă de selectare a formelor materne de grâu pentru hibrizi cu masa boabelor în spic mare.Metoda, conform invenţiei, include stabilirea numărului de boabe în spic la formele materne, standardizarea datelor, analiza regresională multiplă cu stabilirea coeficientului de regresie β pentru numărul de boabe în spic la formele materne şi selectarea formelor cu valori ale coeficientului de regresie β de 0,656…0,712.The invention relates to agriculture, namely to a method of selecting maternal forms of wheat for hybrids with high grain mass. The method, according to the invention, includes determining the number of grains in wheat to maternal forms, data standardization, multiple regression analysis with establishing the regression coefficient β for the number of grains in spike in the maternal forms and selecting the forms with values of the regression coefficient β of 0.656… 0.712.
Description
Invenţia se referă la agricultură, şi anume la o metodă de selectare a formelor materne de grâu pentru hibrizi cu masa boabelor în spic mare. The invention relates to agriculture, namely to a method of selecting maternal forms of wheat for hybrids with high grain mass per ear.
La crearea soiurilor de grâu, o importanţă mare are alegerea corectă a componenţilor de hibridare în calitate de formă maternă sau paternă, factori care influenţează, în mare măsură, mărirea sau micşorarea valorilor unui sau altui element de productivitate a spicului. When creating wheat varieties, the correct choice of hybridization components as maternal or paternal forms is of great importance, factors that greatly influence the increase or decrease in the values of one or another element of ear productivity.
Se cunosc metode de apreciere a efectului matern la formarea elementelor de productivitate la plante [1]. Methods are known for assessing the maternal effect on the formation of productivity elements in plants [1].
Dezavantajul acestora constă în faptul că implică testarea hibrizilor F1 obţinuţi în încrucişări dialele, ceea ce presupune efectuarea unui volum mare de lucru în cadrul încrucişărilor şi, totodată, riscuri de decădere a unor combinaţii din cauza capacităţii diminuate de legare a boabelor la unele culturi agricole, în special la cele autogame din care face parte şi grâul. Their disadvantage is that they involve testing F1 hybrids obtained in diallel crosses, which requires a large amount of work during the crosses and, at the same time, risks of failure of some combinations due to the diminished capacity to bind grains in some agricultural crops, especially in self-fertile ones, which includes wheat.
Cea mai apropiată soluţie este metoda de apreciere a efectului matern în baza indicilor formelor parentale şi hibrizilor reciproci F1 conform formulei: The closest solution is the method of assessing the maternal effect based on the indices of parental forms and reciprocal F1 hybrids according to the formula:
Me = C A-B - C B-A/CA - CB, Me = C A-B - C B-A/CA - CB,
în care Me - efectul matern, C - caracterul cercetat, A şi B - formele parentale: ♀ şi ♂, C A-B şi CB-A - hibrizii reciproci F1 ♀A x ♂B şi F1 ♀B x ♂A [2]. where Me - maternal effect, C - the investigated character, A and B - parental forms: ♀ and ♂, CA-B and CB-A - reciprocal hybrids F1 ♀A x ♂B and F1 ♀B x ♂A [2].
Dezavantajul celei mai apropiate soluţii constă în necesitatea obţinerii a câte 2 hibrizi reciproci pentru fiecare combinaţie, ceea ce presupune un lucru suplimentar, destul de laborios pentru grâu în calitate de cultură autogamă, la care nivelul de legare a boabelor în cadrul hibridărilor adesea este destul de diminuat, totodată nu poate fi stabilit gradul de influenţă a efectului matern asupra nivelului caracterelor cantitative ale hibridului F1. The disadvantage of the closest solution is the need to obtain 2 reciprocal hybrids for each combination, which involves an additional, quite laborious task for wheat as an autogamous crop, in which the level of grain binding within hybridizations is often quite diminished, and at the same time, the degree of influence of the maternal effect on the level of quantitative characters of the F1 hybrid cannot be established.
Problema pe care o rezolvă invenţia propusă constă în crearea unei metode sigure şi rapide de selectare a formelor materne de grâu pentru hibrizi cu masa boabelor în spic mare. The problem solved by the proposed invention consists in creating a safe and rapid method for selecting maternal forms of wheat for hybrids with high grain mass per ear.
Metoda propusă soluţionează problema prin aceea că include stabilirea numărului de boabe în spic la formele materne, standardizarea datelor, analiza regresională multiplă cu stabilirea coeficientului de regresie β pentru numărul de boabe în spic la formele materne şi selectarea formelor cu valori ale coeficientului de regresie β de 0,656…0,712. The proposed method solves the problem by including determining the number of grains per spike in maternal forms, data standardization, multiple regression analysis with determining the regression coefficient β for the number of grains per spike in maternal forms and selecting forms with regression coefficient β values of 0.656…0.712.
Elaborarea metodei de selectare a formelor materne de grâu pentru hibrizi cu masa boabelor în spic mare, conform invenţiei, a inclus următoarele etape: 1) determinarea elementelor de productivitate ale spicului - lungimea spicului, numărul de spiculeţe în spic, numărul boabelor în spic, greutatea unui bob, masa boabelor în spic; 2) standardizarea datelor; 3) analiza de regresie multiplă şi determinarea factorilor predictivi ai masei boabelor în spic în baza valorilor coeficientului de regresie β pentru fiecare element al productivităţii spicului; 4) analiza corelaţională între masa boabelor în spic şi coeficientul de regresie β al elementelor de bază ale productivităţii spicului şi elucidarea celei mai pronunţate dependenţe; 5) elaborarea curbei liniare de regresie între masa boabelor în spic şi principalul factor predictiv. The development of the method for selecting wheat maternal forms for hybrids with high grain mass in the spike, according to the invention, included the following stages: 1) determination of the productivity elements of the spike - spike length, number of spikelets in the spike, number of grains in the spike, weight of one grain, mass of grains in the spike; 2) data standardization; 3) multiple regression analysis and determination of predictive factors of grain mass in the spike based on the values of the regression coefficient β for each element of the spike productivity; 4) correlation analysis between the mass of grains in the spike and the regression coefficient β of the basic elements of the spike productivity and elucidation of the most pronounced dependence; 5) development of the linear regression curve between the mass of grains in the spike and the main predictive factor.
Rezultatul invenţiei constă în sporirea vitezei şi a preciziei de selectare a formelor materne de grâu pentru hibrizi cu masa boabelor în spic mare. The result of the invention consists in increasing the speed and accuracy of selecting maternal forms of wheat for hybrids with high grain mass per ear.
Exemplu de realizare a invenţiei Example of embodiment of the invention
În calitate de material pentru studiu au servit 10 combinaţii de grâu comun de toamnă (pentru fiecare - 2 forme parentale şi hibridul F1), la care s-au înregistrat datele cu privire la elementele de productivitate ale spicului - lungimea spicului, numărul de spiculeţe în spic, numărul boabelor în spic, greutatea unui bob, masa boabelor în spic. The material for the study was 10 combinations of common winter wheat (for each - 2 parental forms and the F1 hybrid), for which data on the productivity elements of the spike were recorded - spike length, number of spikelets in the spike, number of grains in the spike, weight of one grain, mass of grains in the spike.
S-au analizat câte 40…60 spice pentru formele parentale şi câte 20 pentru hibrizii F1. 40…60 spikes were analyzed for the parental forms and 20 for the F1 hybrids.
Datele au fost prelucrate statistic în pachetul de soft STATISTICA 7. The data were statistically processed in the STATISTICA 7 software package.
Pentru realizarea invenţiei s-au efectuat următoarele proceduri statistice: To achieve the invention, the following statistical procedures were performed:
1) Formarea fişierului pentru fiecare genotip cu datele primare ale elementelor de productivitate ale spicului sus-menţionate, exemplu în tab. 1. 1) Formation of the file for each genotype with the primary data of the above-mentioned spike productivity elements, example in Table 1.
Tabelul 1. Datele primare pentru forma parentală L Bas./M30 Table 1. Primary data for the parental form L Bas./M30
Spic Lungi-mea spicu-lui, cm Num. de spicu-leţe Num. de boabe per spic Greu-tatea unui bob, mg Masa boa-belor per spic, g Spic Lun-gimea spicu-lui, cm Num. de spi-culeţe Num. de boabe per spic Greu-tatea unui bob, mg Masa boa-belor per spic, g 1 10,9 19 62 47,9 2,97 32 11,3 21 65 33,7 2,19 2 11,0 21 64 45,6 2,92 33 12,2 23 72 44,9 3,23 3 11,9 21 85 36,2 3,08 34 10,8 21 65 15,4 2,22 4 10,7 19 62 45,8 2,84 35 11,5 21 65 37,1 2,41 5 11,0 21 73 44,0 3,21 36 10,7 21 61 38,5 2,35 6 11,1 21 58 38,6 3,24 37 11,0 19 64 34,7 2,22 7 11,3 21 84 38,9 3,27 38 11,8 21 73 39,3 2,87 8 10,9 21 64 46,6 2,98 39 9,9 19 62 41,6 2,58 9 10,0 19 57 46,1 2,63 40 9,0 15 36 27,5 0,99 10 11,0 21 62 49,2 3,05 41 9,2 19 36 25,6 0,92 11 12,0 23 70 47,4 3,32 42 9,0 17 28 18,9 0,53 12 13,2 23 74 42,4 3,14 43 12,4 23 38 27,1 1,03 13 10,6 19 61 49,3 3,01 44 11,0 21 69 42,9 2,96 14 11,4 21 68 43,7 2,97 45 12,3 17 69 41,9 2,89 15 12,3 23 70 42,0 2,94 46 10,6 19 68 32,5 2,21 16 10,5 19 56 52,5 2,94 47 11,4 21 65 39,4 2,56 17 10,4 19 61 44,4 2,71 48 11,6 21 62 41,6 2,58 18 10,5 19 58 47,6 2,76 49 13,0 21 68 36,6 2,49 19 10,9 21 64 44,8 2,87 50 12,0 21 66 44,1 2,91 20 12,1 21 65 47,2 3,07 51 11,7 21 60 43,3 2,60 21 12,0 21 85 44,2 3,76 52 9,5 19 49 27,1 1,33 22 9,8 19 55 44,4 2,44 53 10,5 21 62 39,4 2,44 23 9,2 17 57 42,3 2,41 54 11,7 21 65 34,5 2,24 24 9,1 19 47 37,7 1,77 55 11,4 19 65 34,5 2,24 25 10,0 19 56 42,7 2,39 56 11,5 19 60 37,8 2,27 26 9,9 19 62 39,7 2,46 57 9,5 19 55 35,6 1,96 27 9,5 17 57 42,8 2,44 58 10,3 19 54 39,8 2,15 28 9,2 19 53 42,6 2,26 59 11,5 21 63 36,0 2,27 29 8,8 17 45 29,6 1,33 60 12,0 21 62 29,2 1,81 30 8,6 17 46 36,3 1,67 61 10,0 19 55 37,5 2,06 31 9,5 17 49 29,2 1,43 62 9,5 19 47 39,4 1,85Spike Spike length, cm Number of spikelets Number of grains per spike Weight of one grain, mg Mass of grains per spike, g Spike Spike length, cm Number of spikelets Number of grains per spikelet of grains per spike Weight of one grain, mg Mass of grains per spike, g 1 10.9 19 62 47.9 2.97 32 11.3 21 65 33.7 2.19 2 11.0 21 64 45.6 2.92 33 12.2 23 72 44.9 3.23 3 11.9 21 85 36.2 3.08 34 10.8 21 65 15.4 2.22 4 10.7 19 62 45.8 2.84 35 11.5 21 65 37.1 2.41 5 11.0 21 73 44.0 3.21 36 10.7 21 61 38.5 2.35 6 11.1 21 58 38.6 3.24 37 11.0 19 64 34.7 2.22 7 11.3 21 84 38.9 3.27 38 11.8 21 73 39.3 2.87 8 10.9 21 64 46.6 2.98 39 9.9 19 62 41.6 2.58 9 10.0 19 57 46.1 2.63 40 9.0 15 36 27.5 0.99 10 11.0 21 62 49.2 3.05 41 9.2 19 36 25.6 0.92 11 12.0 23 70 47.4 3.32 42 9.0 17 28 18.9 0.53 12 13.2 23 74 42.4 3.14 43 12.4 23 38 27.1 1.03 13 10.6 19 61 49.3 3.01 44 11.0 21 69 42.9 2.96 14 11.4 21 68 43.7 2.97 45 12.3 17 69 41.9 2.89 15 12.3 23 70 42.0 2.94 46 10.6 19 68 32.5 2.21 16 10.5 19 56 52.5 2.94 47 11.4 21 65 39.4 2.56 17 10.4 19 61 44.4 2.71 48 11.6 21 62 41.6 2.58 18 10.5 19 58 47.6 2.76 49 13.0 21 68 36.6 2.49 19 10.9 21 64 44.8 2.87 50 12.0 21 66 44.1 2.91 20 12.1 21 65 47.2 3.07 51 11.7 21 60 43.3 2.60 21 12.0 21 85 44.2 3.76 52 9.5 19 49 27.1 1.33 22 9.8 19 55 44.4 2.44 53 10.5 21 62 39.4 2.44 23 9.2 17 57 42.3 2.41 54 11.7 21 65 34.5 2.24 24 9.1 19 47 37.7 1.77 55 11.4 19 65 34.5 2.24 25 10.0 19 56 42.7 2.39 56 11.5 19 60 37.8 2.27 26 9.9 19 62 39.7 2.46 57 9.5 19 55 35.6 1.96 27 9.5 17 57 42.8 2.44 58 10.3 19 54 39.8 2.15 28 9.2 19 53 42.6 2.26 59 11.5 21 63 36.0 2.27 29 8.8 17 45 29.6 1.33 60 12.0 21 62 29.2 1.81 30 8.6 17 46 36.3 1.67 61 10.0 19 55 37.5 2.06 31 9.5 17 49 29.2 1.43 62 9.5 19 47 39.4 1.85
2) Standardizarea datelor primare, exemplu în tab. 2. 2) Standardization of primary data, example in Table 2.
Tabelul 2. Datele standardizate pentru forma parentală L Bas./M30 Table 2. Standardized data for the parental form L Bas./M30
Spic Lungimea spicului Numărul de spiculeţe Numărul de boabe per spic Greutatea unui bob Masa boabelor per spic 1 0,097741 -0,26471 0,125837 1,194007 0,797885 2 0,188188 0,366516 0,309411 0,881957 0,721779 3 1,002212 0,997737 2,236940 -0,4032 0,965318 4 -0,08315 -0,26471 0,125837 0,906592 0,600009 5 0,188188 0,997737 1,135495 0,656131 1,163193 6 0,278635 0,366516 -0,24131 -0,07609 1,208857 7 0,45953 0,997737 2,145153 -0,03503 1,25452 8 0,097741 0,997737 0,309411 1,010609 0,813106 9 -0,71628 -0,26471 -0,3331 0,953126 0,280364 10 0,188188 0,366516 0,125837 1,370561 0,919654 11 1,092659 1,628959 0,860134 1,128312 1,330626 12 2,178024 1,628959 1,227282 0,44536 1,056645 13 -0,1736 -0,26471 0,03405 1,391091 0,858769 14 0,549977 0,366516 0,67656 0,615072 0,797885 15 1,364 1,628959 0,860134 0,386509 0,752221 16 -0,26405 -0,26471 -0,42489 1,823582 0,752221 17 -0,35449 -0,26471 0,03405 0,71772 0,402134 18 -0,26405 -0,26471 -0,24131 1,15021 0,47824 19 0,097741 0,366516 0,309411 0,775203 0,645673 20 1,183106 0,997737 0,401198 1,102308 0,950097 21 1,092659 0,997737 2,23694 0,691716 2,000358 22 -0,89718 -0,89593 -0,51667 0,709508 -0,00884 23 -1,43986 -1,52715 -0,3331 0,424831 -0,0545 24 -1,53031 -0,26471 -1,25097 -0,20748 -1,02866 25 -0,71628 -0,26471 -0,42489 0,478208 -0,08494 26 -0,80673 -0,26471 0,125837 0,067615 0,021604 27 -1,16852 -1,52715 -0,3331 0,496 -0,00884 28 -1,43986 -0,89593 -0,70025 0,474102 -0,28282 29 -1,80165 -1,52715 -1,43454 -1,31745 -1,69839 30 -1,98254 -1,52715 -1,34276 -0,39362 -1,18087 31 -1,16852 -1,52715 -1,0674 -1,36809 -1,54618 32 0,45953 0,366516 0,401198 -0,75083 -0,38937 33 1,273553 1,628959 1,043708 0,77794 1,193636 34 0,007294 0,366516 0,401198 -3,25681 -0,3437 35 0,640424 0,366516 0,401198 -0,28823 -0,0545 36 -0,08315 0,366516 0,03405 -0,08978 -0,14583 37 0,188188 -0,26471 0,309411 -0,61534 -0,3437 38 0,911765 0,366516 1,135495 0,018344 0,645673 39 -0,80673 -0,26471 0,125837 0,333132 0,204258 40 -1,62075 -2,78959 -2,26063 -1,59802 -2,21591 41 -1,43986 -0,89593 -2,26063 -1,86491 -2,32246 42 -1,62075 -1,52715 -2,99492 -2,77231 -2,91608 43 1,454448 1,628959 -2,07705 -1,65277 -2,15503 44 0,188188 0,997737 0,768347 0,508318 0,782664 45 1,364 -2,15837 0,768347 0,370085 0,676115 46 -0,1736 -0,26471 0,67656 -0,9137 -0,35893 47 0,549977 0,997737 0,401198 0,027925 0,173816 48 0,730871 0,997737 0,125837 0,333132 0,204258 49 1,99713 0,366516 0,67656 -0,35119 0,067268 50 1,092659 0,997737 0,492986 0,672555 0,706558 51 0,821318 0,366516 -0,05774 0,568538 0,234701 52 -1,16852 -0,89593 -1,0674 -1,64729 -1,69839 53 -1,16852 -0,89593 -1,0674 -1,64729 -1,69839 54 0,821318 0,366516 0,401198 -0,64545 -0,31326 55 0,549977 -0,26471 0,401198 -0,64545 -0,31326 56 0,640424 -0,26471 -0,05774 -0,18421 -0,2676 57 -1,16852 -0,89593 -0,51667 -0,48532 -0,73946 58 -0,44494 -0,89593 -0,60846 0,086776 -0,45025 59 0,640424 0,997737 0,217624 -0,43057 -0,2676 60 1,092659 0,997737 0,125837 -1,06672 -0,96777 61 -0,71628 -0,89593 -0,51667 -0,23622 -0,58724 62 -1,16852 -0,89593 -1,25097 0,025187 -0,90689Spike Spike length Number of spikelets Number of grains per spike Grain weight Grain mass per spike 1 0.097741 -0.26471 0.125837 1.194007 0.797885 2 0.188188 0.366516 0.309411 0.881957 0.721779 3 1.002212 0.997737 2.236940 -0.4032 0.965318 4 -0.08315 -0.26471 0.125837 0.906592 0.600009 5 0.188188 0.997737 1.135495 0.656131 1.163193 6 0.278635 0.366516 -0.24131 -0.07609 1.208857 7 0.45953 0.997737 2.145153 -0.03503 1.25452 8 0.097741 0.997737 0.309411 1.010609 0.813106 9 -0.71628 -0.26471 -0.3331 0.953126 0.280364 10 0.188188 0.366516 0.125837 1.370561 0.919654 11 1.092659 1.628959 0.860134 1.128312 1.330626 12 2.178024 1.628959 1.227282 0.44536 1.056645 13 -0.1736 -0.26471 0.03405 1.391091 0.858769 14 0.549977 0.366516 0.67656 0.615072 0.797885 15 1.364 1.628959 0.860134 0.386509 0.752221 16 -0.26405 -0.26471 -0.42489 1.823582 0.752221 17 -0.35449 -0.26471 0.03405 0.71772 0.402134 18 -0.26405 -0.26471 -0.24131 1.15021 0.47824 19 0.097741 0.366516 0.309411 0.775203 0.645673 20 1.183106 0.997737 0.401198 1.102308 0.950097 21 1.092659 0.997737 2.23694 0.691716 2.000358 22 -0.89718 -0.89593 -0.51667 0.709508 -0.00884 23 -1.43986 -1.52715 -0.3331 0.424831 -0.0545 24 -1.53031 -0.26471 -1.25097 -0.20748 -1.02866 25 -0.71628 -0.26471 -0.42489 0.478208 -0.08494 26 -0.80673 -0.26471 0.125837 0.067615 0.021604 27 -1.16852 -1.52715 -0.3331 0.496 -0.00884 28 -1.43986 -0.89593 -0.70025 0.474102 -0.28282 29 -1.80165 -1.52715 -1.43454 -1.31745 -1.69839 30 -1.98254 -1.52715 -1.34276 -0.39362 -1.18087 31 -1.16852 -1.52715 -1.0674 -1.36809 -1.54618 32 0.45953 0.366516 0.401198 -0.75083 -0.38937 33 1.273553 1.628959 1.043708 0.77794 1.193636 34 0.007294 0.366516 0.401198 -3.25681 -0.3437 35 0.640424 0.366516 0.401198 -0.28823 -0.0545 36 -0.08315 0.366516 0.03405 -0.08978 -0.14583 37 0.188188 -0.26471 0.309411 -0.61534 -0.3437 38 0.911765 0.366516 1.135495 0.018344 0.645673 39 -0.80673 -0.26471 0.125837 0.333132 0.204258 40 -1.62075 -2.78959 -2.26063 -1.59802 -2.21591 41 -1.43986 -0.89593 -2.26063 -1.86491 -2.32246 42 -1.62075 -1.52715 -2.99492 -2.77231 -2.91608 43 1.454448 1.628959 -2.07705 -1.65277 -2.15503 44 0.188188 0.997737 0.768347 0.508318 0.782664 45 1.364 -2.15837 0.768347 0.370085 0.676115 46 -0.1736 -0.26471 0.67656 -0.9137 -0.35893 47 0.549977 0.997737 0.401198 0.027925 0.173816 48 0.730871 0.997737 0.125837 0.333132 0.204258 49 1.99713 0.366516 0.67656 -0.35119 0.067268 50 1.092659 0.997737 0.492986 0.672555 0.706558 51 0.821318 0.366516 -0.05774 0.568538 0.234701 52 -1.16852 -0.89593 -1.0674 -1.64729 -1.69839 53 -1.16852 -0.89593 -1.0674 -1.64729 -1.69839 54 0.821318 0.366516 0.401198 -0.64545 -0.31326 55 0.549977 -0.26471 0.401198 -0.64545 -0.31326 56 0.640424 -0.26471 -0.05774 -0.18421 -0.2676 57 -1.16852 -0.89593 -0.51667 -0.48532 -0.73946 58 -0.44494 -0.89593 -0.60846 0.086776 -0.45025 59 0.640424 0.997737 0.217624 -0.43057 -0.2676 60 1.092659 0.997737 0.125837 -1.06672 -0.96777 61 -0.71628 -0.89593 -0.51667 -0.23622 -0.58724 62 -1.16852 -0.89593 -1.25097 0.025187 -0.90689
3) Analiza de regresie multiplă şi stabilirea coeficientului de regresie β pentru fiecare element de productivitate al spicului. 3) Multiple regression analysis and determination of the regression coefficient β for each productivity element of the spike.
Astfel, la forma parentală L Bas./M30 coeficientul de regresie β a constituit: -0,010; 0,065; 0,596*; 0,502* (p≤0,05), respectiv, pentru lungimea spicului, numărul de spiculeţe în spic, numărul de boabe în spic, greutatea unui bob. Din datele obţinute se poate concluziona ca la acest genotip, factorii predictivi pentru masa boabelor în spic sunt numărul de boabe în spic şi greutatea unui bob. În cazul celorlalte genotipuri (forme parentale şi hibrizi F1) aflate în studiu, de asemenea s-a constatat că factorii predictivi menţionaţi sunt cei mai importanţi pentru formarea masei boabelor în spic (tab. 3). Thus, for the parental form L Bas./M30 the regression coefficient β was: -0.010; 0.065; 0.596*; 0.502* (p≤0.05), respectively, for the length of the spike, the number of spikelets in the spike, the number of grains in the spike, the weight of a grain. From the data obtained, it can be concluded that for this genotype, the predictive factors for the mass of grains in the spike are the number of grains in the spike and the weight of a grain. In the case of the other genotypes (parental forms and F1 hybrids) under study, it was also found that the aforementioned predictive factors are the most important for the formation of the mass of grains in the spike (tab. 3).
Tabelul 3. Analiza de regresie multiplă pentru elementele de productivitate implicate în formarea masei boabelor în spic la forme parentale şi hibrizi F1 de grâu comun Table 3. Multiple regression analysis for productivity elements involved in the formation of grain mass in the ear in parental forms and F1 hybrids of common wheat
Nr. Genotip Greutatea boabelor per spic, g Coeficientul de regresie multiplă β Lungimea spicului Num. spiculeţelor Num. boabelor în spic Greutatea unui bob 1 L Bas./M30 2,45±0,08 -0,010 0,065 0,596* 0,502* 2 L 101/Od.117 2,55±0,07 -0,010 0,016 0,656* 0,611* 3 F1 ♀ L Bas./M30 x ♂ L 101/Od.117 1,91±0,13 0,297 0,169 0,326* 0,423* 4 F1 ♀ L 101/Od.117x ♂ L Bas./M30 2,44±0,05 -0,005 0,045 1,200* 0,859* 5 L M30/M3 2,70±0,06 -0,001 0,014 0,712* 0,501* 6 L M.27/Od.162 1,73±0,07 -0,040 0,020 0,759* 0,778* 7 F1 ♀L M30/M3 x ♂ L M.27/Od.162 2,58±0,10 -0,010 -0,020 0,844* 0,408* 8 Moldova 11 2,76±0,04 0,007 -0,001 0,755* 0,422* 9 F1 ♀ L 101/Od.117 x ♂Moldova11 2,35±0,09 0,056* -0,040 0,559* 0,713* 10 F1♀ L 101/Od.117 x ♂ L M30/M3 2,42±0,07 -0,050 0,011 0,916* 0,530* 11 L Cub.101/Bas. 2,85±0,09 0,158 -0,220 0,706* 0,415* 12 M30 2,35±0,09 0,001 -0,020 0,657* 0,706* 13 F1♀ L Cub.101/Bas. x ♂M30 2,50±0,08 -0,001 -0,030 0,693* 0,690* 14 L 101/Od.117 2,55±0,07 -0,010 0,016 0,656* 0,611* 15 L Bas. 2,33±0,06 0,037 -0,020 0,680* 0,469* 16 F1♀LM30/M3 x ♂L Bas. 2,48±0,08 -0,200 0,229 0,818* 0,523* 17 F1♀L Bas. x ♂ LM30/M3 2,35±0,07 -0,023 0,011 0,602* 0,917* 18 F1♀ L M30/M3 x ♂Moldova 11 2,91±0,11 -0,040 -0,070 0,696* 0,778* 19 Select 1,31±0,05 0,038 -0,050 0,654* 0,384* 20 F1♀L M30/M3 x ♂Select 2,63±0,06 -0,001 0,004 0,859* 0,635*No. Genotype Grain weight per spike, g Multiple regression coefficient β Spike length No. of spikelets No. of grains in the ear Weight of one grain 1 L Bas./M30 2.45±0.08 -0.010 0.065 0.596* 0.502* 2 L 101/Od.117 2.55±0.07 -0.010 0.016 0.656* 0.611* 3 F1 ♀ L Bas./M30 x ♂ L 101/Od.117 1.91±0.13 0.297 0.169 0.326* 0.423* 4 F1 ♀ L 101/Od.117x ♂ L Bas./M30 2.44±0.05 -0.005 0.045 1.200* 0.859* 5 L M30/M3 2.70±0.06 -0.001 0.014 0.712* 0.501* 6 L M.27/Od.162 1.73±0.07 -0.040 0.020 0.759* 0.778* 7 F1 ♀L M30/M3 x ♂ L M.27/Od.162 2.58±0.10 -0.010 -0.020 0.844* 0.408* 8 Moldova 11 2.76±0.04 0.007 -0.001 0.755* 0.422* 9 F1 ♀ L 101/Od.117 x ♂Moldova11 2.35±0.09 0.056* -0.040 0.559* 0.713* 10 F1♀ L 101/Od.117 x ♂ L M30/M3 2.42±0.07 -0.050 0.011 0.916* 0.530* 11 L Cub.101/Bass. 2.85±0.09 0.158 -0.220 0.706* 0.415* 12 M30 2.35±0.09 0.001 -0.020 0.657* 0.706* 13 F1♀ L Cub.101/Bass. x ♂M30 2.50±0.08 -0.001 -0.030 0.693* 0.690* 14 L 101/Od.117 2.55±0.07 -0.010 0.016 0.656* 0.611* 15 L Bas. 2.33±0.06 0.037 -0.020 0.680* 0.469* 16 F1♀LM30/M3 x ♂L Bass. 2.48±0.08 -0.200 0.229 0.818* 0.523* 17 F1♀L Bas. x ♂ LM30/M3 2.35±0.07 -0.023 0.011 0.602* 0.917* 18 F1♀ L M30/M3 x ♂Moldova 11 2.91±0.11 -0.040 -0.070 0.696* 0.778* 19 Select 1.31±0.05 0.038 -0.050 0.654* 0.384* 20 F1♀L M30/M3 x ♂Select 2.63±0.06 -0.001 0.004 0.859* 0.635*
*- p≤0,05. *- p≤0.05.
4) Elaborarea fişierului (tab. 4) cu principalii factori predictivi ai formelor parentale şi masa boabelor în spic la hibrizii F1 (g), efectuarea analizei corelaţionale între aceşti parametri. 4) Elaboration of the file (tab. 4) with the main predictive factors of parental forms and grain mass in the spike of F1 hybrids (g), performing the correlation analysis between these parameters.
Ca rezultat al analizei corelaţionale, s-a constatat o dependenţă înaltă (r = 0,85*) între masa boabelor în spic la hibrizii F1 şi coeficientul ß pentru numărul boabelor în spic la forma maternă (tab. 5). As a result of the correlation analysis, a high dependence (r = 0.85*) was found between the mass of grains in the spike in F1 hybrids and the ß coefficient for the number of grains in the spike in the maternal form (tab. 5).
Tabelul 4. Date comparative ale coeficientului de regresie multiplă ß pentru numărul de boabe, masa bobului la formele parentale şi masa boabelor în spic la hibrizii F1 de grâu comun Table 4. Comparative data of the multiple regression coefficient ß for the number of grains, grain mass in parental forms and grain mass in the ear in F1 hybrids of common wheat
Combinaţie Forma maternă (♀), ß Forma paternă (♂), ß Masa boabelor în spic la hibrizii F1, g Num. boabelor per spic Masa bobului Num. boabelor per spic Masa bobului 1 2 3 4 5 ♀L Bas./M30 x ♂ L101/Od.117 0,596 0,502 0,656 0,611 1,91 ♀ L101/x Od.117 x ♂ L Bas./M.30 0,656 0,611 0,596 0,502 2,44 ♀L M30/M3 x ♂L M.27/Od.162 0,712 0,501 0,759 0,778 2,58 ♀L101/Od.117 x ♂Moldova 11 0,656 0,611 0,755 0,422 2,35 ♀L 101/Od.117 x ♂ L M30/M3 0,656 0,611 0,712 0,501 2,42 ♀ L Cub.101/Bas. x ♂M30 0,706 0,415 0,657 0,706 2,50 ♀L M30/M3 x ♂L Bas. 0,712 0,501 0,680 0,469 2,48 ♀L Bas. x ♂L M30/M3 0,680 0,469 0,712 0,501 2,35 ♀L M30/M3 x ♂Moldova 11 0,712 0,501 0,755 0,422 2,91 ♀L M30/M3 x ♂Select 0,696 0,778 0,712 0,501 2,63Combination Maternal form (♀), ß Paternal form (♂), ß Grain mass in spike in F1 hybrids, g Number of grains per spike Grain mass Num. of grains per spike Grain weight 1 2 3 4 5 ♀L Bas./M30 x ♂ L101/Od.117 0.596 0.502 0.656 0.611 1.91 ♀ L101/x Od.117 x ♂ L Bas./M.30 0.656 0.611 0.596 0.502 2.44 ♀L M30/M3 x ♂L M.27/Od.162 0.712 0.501 0.759 0.778 2.58 ♀L101/Od.117 x ♂Moldova 11 0.656 0.611 0.755 0.422 2.35 ♀L 101/Od.117 x ♂ L M30/M3 0.656 0.611 0.712 0.501 2.42 ♀ L Cub.101/Bass. x ♂M30 0.706 0.415 0.657 0.706 2.50 ♀L M30/M3 x ♂L Bass. 0.712 0.501 0.680 0.469 2.48 ♀L Bass. x ♂L M30/M3 0.680 0.469 0.712 0.501 2.35 ♀L M30/M3 x ♂Moldova 11 0.712 0.501 0.755 0.422 2.91 ♀L M30/M3 x ♂Select 0.696 0.778 0.712 0.501 2.63
Tabelul 5. Matriţa corelaţională a dependenţei între coeficientul de regresie multiplă ß pentru numărul de boabe, masa bobului la formele parentale şi masa boabelor per spic la hibrizii F1 de grâu comun Table 5. Correlation matrix of the dependence between the multiple regression coefficient ß for the number of grains, the grain mass in the parental forms and the grain mass per spike in the F1 hybrids of common wheat
Indici 1 2 3 4 5 1 1,00 2 -0,14 1,00 3 0,37 0,06 1,00 4 0,10 -0,41 -0,09 1,00 5 0,85* 0,12 0,42 -0,17 1,00 Indexes 1 2 3 4 5 1 1.00 2 -0.14 1.00 3 0.37 0.06 1.00 4 0.10 -0.41 -0.09 1.00 5 0.85* 0.12 0.42 -0.17 1.00
*- p≤0,05. *- p≤0.05.
Notă: 1 - ß pentru num. boabelor în spic la forma maternă; 2 - ß pentru greutatea bobului la forma maternă; 3 - ß pentru num. boabelor în spic la forma paternă; 4 - ß pentru greutatea bobului la forma paternă; 5 - masa boabelor în spic la hibrizii F1. Note: 1 - ß for number of grains in the ear in the maternal form; 2 - ß for grain weight in the maternal form; 3 - ß for number of grains in the ear in the paternal form; 4 - ß for grain weight in the paternal form; 5 - weight of grains in the ear in F1 hybrids.
5) Elaborarea curbei liniare de regresie a dependenţei masei boabelor în spic la hibrizii F1 - coeficientul ß pentru numărul boabelor în spic la forma maternă (vezi figura). 5) Elaboration of the linear regression curve of the dependence of the mass of grains in the spike in F1 hybrids - the ß coefficient for the number of grains in the spike in the maternal form (see figure).
Datele obţinute demonstrează că în majoritatea cazurilor (cu excepţia hibridului F1 ♀L M30/M3 x ♂Moldova 11, la care masa boabelor per spic este egală cu 2,91 g şi ß = 0,712 pentru numărul boabelor în spic la forma maternă) punctele s-au localizat în apropierea liniei teoretice (linie continuă) în intervalul de confidenţă (linie întreruptă) 0,95, ceea ce relevă veridicitatea statistică a rezultatelor obţinute şi posibilitatea de identificare a formelor materne de grâu valoroase cu oportunităţi sigure de formare a hibrizilor F1 cu masa boabelor în spic înaltă: 2,35…2,63 g. The obtained data demonstrate that in most cases (except for the F1 hybrid ♀L M30/M3 x ♂Moldova 11, in which the mass of grains per spike is equal to 2.91 g and ß = 0.712 for the number of grains in the spike in the maternal form) the points were located near the theoretical line (solid line) in the confidence interval (dashed line) 0.95, which reveals the statistical veracity of the obtained results and the possibility of identifying valuable maternal forms of wheat with reliable opportunities for the formation of F1 hybrids with high mass of grains in the spike: 2.35…2.63 g.
1. Reinhold K. Maternal effects and the evolution of behavioural and morphological characters: a literature review indicates importance of extended maternal care. Journal of Heredity, 2002, 93(6), p. 400-405 1. Reinhold K. Maternal effects and the evolution of behavioral and morphological characters: a literature review indicates the importance of extended maternal care. Journal of Heredity, 2002, 93(6), p. 400-405
2. Ghareeb Z.E., Fares W.M. Modified model for assessement of maternal effects in first generation of faba bean. Annals of Agricultural Science, 2016, 61(1), p. 77-85 2. Ghareeb Z.E., Fares W.M. Modified model for assessment of maternal effects in the first generation of faba bean. Annals of Agricultural Science, 2016, 61(1), p. 77-85
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