CN105103905A - Male parent staged sowing method for summer radish hybrid seed production - Google Patents
Male parent staged sowing method for summer radish hybrid seed production Download PDFInfo
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- CN105103905A CN105103905A CN201510537016.0A CN201510537016A CN105103905A CN 105103905 A CN105103905 A CN 105103905A CN 201510537016 A CN201510537016 A CN 201510537016A CN 105103905 A CN105103905 A CN 105103905A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01H—NEW PLANTS OR NON-TRANSGENIC PROCESSES FOR OBTAINING THEM; PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES
- A01H1/00—Processes for modifying genotypes ; Plants characterised by associated natural traits
- A01H1/02—Methods or apparatus for hybridisation; Artificial pollination ; Fertility
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Abstract
The invention provides a male parent staged sowing method for summer radish hybrid seed production. In the method, male parents are sown at threes stages after female parents are sown, the sowing time of the first stage of the male parents is 75-95 days after the female parents are sown, the sowing time of the second stage of the male parents is 50-70 days after the first stage of sowing of the male parents, and the sowing time of the third stage of the male parents is 10-29 days after the second stage of sowing of the male parents. The male parents are sown at three stages after the female parents are sown, and therefore the florescence of male parent plants is prolonged to about 60 days from the existing about 20 days, and it is just ensured that the florescence of the male parents completely covers that of the female parents; the number of the male parent plants is increased by 1.5 times or above after the three stages of sowing; the pollen quantity is sufficient, sufficient pollen is supplied to female parent plants to the maximum extent, the pollination time of the female parent plants is prolonged, and the setting percentage is increased. The florescence of the male parents and that of the female parents completely overlap, and the seed production yield is improved by one time or above compared with that of the single stage of sowing of the male parents.
Description
Technical field
The invention belongs to crossbreeding technology field, particularly relate to a kind of male parent interval sowing method for summer radish hybrid seeding.
Background technology
Utilizing crossbreeding technology to cultivate summer radish new varieties is improve the effective means of heat resistance, yield and quality, some the kind summer radish kind major parts promoted in the market are conventional varieties, and its heat resistance is strong, output is not high, inferior quality, the summer radish new varieties that selected by crossbreeding technology can overcome the problems referred to above.But when cultivating hybridization summer radish, General Requirements male parent (or maternal) heat resistanceheat resistant, precocity, just heat resistance can be shown after hybridization, when the production of hybrid seeds, if male parent is heat resistance material, because of problems such as it are precocious, bloom early, the florescence is short, cause Parent flowering asynchronism, hybrid seed yield is low, even has no harvest time serious, have impact on the large scale application of superior hybrid crosses summer radish kind.
At present, during the hybridization summer radish production of hybrid seeds, the Parent sowing same period or male parent are than about maternal late sowing first quarter moon, and this technology exists following problem: one is be difficult at the Parent florescence highly unanimously, and cause seed setting rate of the female parent low, hybrid seed yield is not high; Two are male parents is early-maturing variety, and cold resistance is poor, easily freezes to death when running into low temperature winter, and when causing blooming, paternal plant quantity is few and affect Pollination Effect.
Summary of the invention
In view of this, the invention provides a kind of Parent flower synchronization, the male parent interval sowing method for summer radish hybrid seeding that paternal plant quantity is many.
The invention provides a kind of male parent interval sowing method for summer radish hybrid seeding, the female parent of the method after planting male parent divides the sowing of three phases, the sowing time male parent first phase is female parent after planting 75-95 days, the sowing time male parent second phase is the male parent first phase after planting 50-70 days, and the sowing time male parent third phase is the male parent second phase after planting 10-29 days.
The invention has the beneficial effects as follows: (1) female parent after planting male parent divides the sowing of three phases, makes the paternal plant florescence elongated, by about original 20 days, extends to about 60 days, just in time ensure that all standing of male parent florescence to the maternal florescence; (2) paternal plant quantity increases, and three phases, after planting paternal plant quantity added more than 1.5 times; (3) pollen amount is sufficient, provides sufficient pollen to greatest extent and plants strain to maternal, and make maternal strain ripening rate of planting high, hybrid seed yield is high; (4) the Parent florescence meets completely, and hybrid seed yield was enhanced about more than once than male parent single date of seeding.
Embodiment
The invention provides a kind of male parent interval sowing method for summer radish hybrid seeding, the female parent of the method after planting male parent divides the sowing of three phases, the sowing time male parent first phase is female parent after planting 75-95 days, the sowing time male parent second phase is the male parent first phase after planting 50-70 days, and the sowing time male parent third phase is the male parent second phase after planting 10-29 days.
Preferably, described male parent divides the sowing of three phases, and each issue sowing all broadcasts one on the male parent furrow that seed farm is reserved.
Preferably, described female parent carries out during being seeded in September 1 to September 10, the male parent first phase carries out during being seeded in December 1 to December 10, the male parent second phase be seeded in February 1 to February 10 in next year during carry out, the male parent second phase be seeded in February 10 to by the end of February period carries out.Male parent interval sowing just in time ensure that all standing of male parent florescence to the maternal florescence, provides sufficient pollen to greatest extent and plants strain to maternal, and make maternal strain ripening rate of planting high, hybrid seed yield is high.
Preferred further, described male parent is Duanye 13 radish.Described female parent is male sterile through-stone dog A.Also by selecting to plant that the ripe property of strain is identical, the male parent inbred line preparing hybrid of flower synchronization combines with maternal, but for cultivating summer radish hybrid seed, male parent Duanye 13 radish is more satisfactory material.
Further preferred, described male parent selects percentage of seedgermination to reach the purebred Duanye 13 radish of more than 90%, is conducive to the purity guaranteeing crossbreed.
Be more preferably, after described maternal seeding and seedling raising 50-55 days, select the female parent kind strain meeting breediness to carry out follow-up hybridization.Strictly undertaken selecting the strain of maternal kind by variety characteristic, the sowing of male parent is carried out in field planting after seed farm, is conducive to the purity guaranteeing crossbreed.
Be more preferably, described male parent first phase sowing adopts double-deck covering, and namely plastic mulching adds Small plastic shed plastic film covering, after emerging, broken hole puts seedling, after the beginning of spring in next year, removes arch film during February 25 to March 5, final singling, spacing 5-10 centimetre, weeding, grave mound, topdresses, waters.
The sowing of described male parent second phase adopts plastic mulching, broken hole after emerging, seedling seedling three leaf wholeheartedly after final singling, spacing 3-5 centimetre, weeding, topdresses, waters.
Described male parent third phase sowing adopts plastic mulching, broken hole after emerging, and seedling seedling three leaf is rear final singling wholeheartedly, spacing 3-5 centimetre, weeding, topdresses, waters, and male parent third phase sowing plant sows plant interval 18-25 centimetre with early stage, avoid in earlier stage plant strain growth to the restriction of later stage plant strain growth.
Below in conjunction with embodiment, a kind of male parent interval sowing method for summer radish hybrid seeding provided by the invention is further described.
Embodiment 1
Summer radish Hybrid (stone dog A × Duanye 13 number) is formed after utilizing radish male sterile stone dog A and number hybridization of male parent inbred line Duanye 13, and this kind heat resistance is strong, product are of fine quality, suitable plantation in summer.Described Duanye 13 radish is the conventional kind used in breeding field, can obtain or market purchasing at species bank, obtain pure Duanye 13 radish after carrying out seed selection in strict accordance with varietal characteristic, male sterile through-stone dog A draws from Wuhan Vegetable Research Institute.But its male parent Duanye 13 radish is early-maturing variety, blooms early, the florescence is short, it is poor to plant strain resistance, often occurs affecting hybrid seed yield because pollen is not enough during the production of hybrid seeds.
The present embodiment utilizes male parent interval sowing method, and improve summer radish hybrid seed production yields, meet the demand of market to this summer radish kind, concrete steps are as follows:
One, female parent selection and plantation
Select radish male sterile stone dog A for maternal, the maternal sowing time is arranged at early and middle ten days in September, and the present embodiment completed maternal seeding and seedling raising September 5.In order to ensure the purity of crossbreed, adopting in female parent selects good strains in the field for seed selects seed breeding, strictly selects by this variety characteristic after namely sowing 50-55 days, the high-purity female parent after choosing is planted strain and presses the field planting of breeding technique operational procedure at seed farm.
Two, male parent is selected and plantation
The kind high with parental varieties coordinate force is selected to be male parent, the present embodiment selects Duanye 13 radish as male parent, in order to ensure the purity of crossbreed, the inbred line Duanye 13 radish selecting high, the percentage of seedgermination of purity to reach more than 90% is male parent, determines the interval sowing time of male parent according to the sowing time of seed production way and female parent.
The male parent first phase is sowed
The sowing time male parent first phase is arranged in early December, and the present embodiment completed the first-phase seeding and seedling raising of male parent December 3.Because the sowing of the male parent first phase is on the occasion of the winter of severe cold, temperature is low, to emerge difficulty, take double-deck covering, specific practice is by male parent furrow reserved for male parent seed drilling seed farm, every drill seeding one, male parent furrow are opened the shallow ridges of 3-5 centimetre, beat vola water, by seed equably drilling in ditch, cover covering with plastic film after fine earth, then have a upper shed to cover film.After broadcasting rear first quarter moon, open film, observe seed whether to be unearthed, during as being unearthed and withstanding mulch film, release seedling with small bamboo spike broken hole, again build film and obturage, the thin film until the beginning of spring in next year drops back, carry out final singling in time, spacing 5-10 centimetre, farming such as carrying out weeding, grave mound simultaneously, topdress, water operates.
The male parent second phase is sowed
The sowing time male parent second phase is arranged in early Febuary in next year, and the present embodiment completed the second phase seeding and seedling raising of male parent February 3.During second phase sowing, ground temperature has started to rise, and only need carry out plastic mulching can ensure seed sprouting.Male parent furrow are ditched the drilling of bottoming water, every drill seeding one, broadcasts bonnet mulch film, and observe situation of emerging after one week, timely broken hole puts seedling, to obturage hole periphery simultaneously, be incubated and prevent weed growth with fine earth.Seedling three leaf wholeheartedly after final singling, spacing 3-5 centimetre, and carry out weeding, topdress, the farming such as to water operation.
The male parent third phase is sowed
The sowing time male parent third phase is arranged in late Febuary, and the present embodiment completed the seeding and seedling raising of male parent February 23.During third phase sowing, temperature raises, and temperature is normal, but still plastic mulching need be adopted to sow, and its management is sowed substantially identical with technology and the second phase.Carry out plastic mulching and can ensure seed sprouting.Male parent furrow are ditched the drilling of bottoming water, every drill seeding one, broadcasts bonnet mulch film, and observe situation of emerging after one week, timely broken hole puts seedling, to obturage hole periphery simultaneously, be incubated and prevent weed growth with fine earth.Seedling three leaf wholeheartedly after final singling, spacing 3-5 centimetre, and carry out weeding, topdress, the farming such as to water operation.But with the line-spacing of front twice sowing simultaneously when should note sowing, arrange should sow with early stage to greatest extent during third phase sowing to keep at a distance, avoid in earlier stage plant strain growth to the restriction of later stage plant strain growth.General Requirements interval 20 cm.
By above method, the maternal florescence is that next year is by the end of March to by the end of April, after male parent has been sowed for three times, the early March in next year in flowering stage of male parent is extended to and terminates the first tenday period of a month in May, and the florescence of paternal plant is obviously elongated, by about 20 days of conventional method, extend to about 60 days, thus achieve all standing of male parent florescence to the maternal florescence, and paternal plant quantity obviously increases, three phases, after planting paternal plant quantity added more than 1.5 times compared to conventional method.Radish hybrid seed is, by insect, the pollen of male parent is passed to rear on maternal floral organ formation, paternal plant quantity is many, the florescence is long, then pollen amount is sufficient, significantly improves Pollination Effect, the hybrid seed yield of the conventional method of hybrid seed yield date of seeding more single than male parent is more than doubled.
Embodiment 2
Embodiment 2 is substantially the same manner as Example 1, difference is, embodiment 2 completed maternal seeding and seedling raising September 12, completed the first-phase seeding and seedling raising of male parent December 8, complete the second phase seeding and seedling raising of male parent February 8 next year, complete the third phase seeding and seedling raising of male parent February 27.
The florescence of this enforcement gained paternal plant is equally obviously elongated, extend to about 60 days, achieve all standing of male parent florescence to the maternal florescence, paternal plant quantity adds more than 1.5 times compared to conventional method, and the hybrid seed yield of the conventional method of hybrid seed yield date of seeding more single than male parent is more than doubled.
From embodiment 1, embodiment 2, adopt the male parent interval sowing method for summer radish hybrid seeding provided by the invention, can effectively extend male parent flowering time, effectively avoid the problem affecting hybrid seed yield because the florescence is too short often occurred during the production of hybrid seeds, the strain of male parent kind and the pollen that ensure abundance are supplied to the strain of maternal kind, can hybrid seed yield be significantly improved, successful, stable, meet the demand of market to superior hybrid crosses summer radish kind.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the male parent interval sowing method for summer radish hybrid seeding, it is characterized in that: female parent after planting male parent divides the sowing of three phases, the sowing time male parent first phase is female parent after planting 75-95 days, the sowing time male parent second phase is the male parent first phase after planting 50-70 days, and the sowing time male parent third phase is the male parent second phase after planting 10-29 days.
2. as claimed in claim 1 for the male parent interval sowing method of summer radish hybrid seeding, it is characterized in that: described male parent divides the sowing of three phases, and each issue sowing all broadcasts one on the male parent furrow that seed farm is reserved.
3. as claimed in claim 1 for the male parent interval sowing method of summer radish hybrid seeding, it is characterized in that: described female parent carries out during being seeded in September 5 to September 15, the male parent first phase carries out during being seeded in December 1 to December 10, the male parent second phase carries out during being seeded in February 1 to February 10 in next year, and the male parent third phase is seeded in February 10 to period carries out by the end of February.
4., as claimed in claim 3 for the male parent interval sowing method of summer radish hybrid seeding, it is characterized in that: described male parent is Duanye 13 radish.
5., as claimed in claim 4 for the male parent interval sowing method of summer radish hybrid seeding, it is characterized in that: described female parent is male sterile through-stone dog A.
6. as claimed in claim 4 for the male parent interval sowing method of summer radish hybrid seeding, it is characterized in that: described male parent selects percentage of seedgermination to reach the purebred Duanye 13 radish of more than 90%.
7. as claimed in claim 3 for the male parent interval sowing method of summer radish hybrid seeding, it is characterized in that: after described maternal seeding and seedling raising 50-55 days, select the female parent kind strain meeting breediness to carry out follow-up hybridization.
8. as claimed in claim 3 for the male parent interval sowing method of summer radish hybrid seeding, it is characterized in that: the sowing of the male parent first phase adopts double-deck covering, namely plastic mulching adds Small plastic shed plastic film covering again, after emerging, broken hole puts seedling, after the beginning of spring in next year, during February 25 to March 5, remove arch film, final singling, spacing 5-10 centimetre, weeding, grave mound, topdresses, waters.
9. as claimed in claim 8 for the male parent interval sowing method of summer radish hybrid seeding, it is characterized in that: the sowing of the male parent second phase adopts plastic mulching, broken hole after emerging, seedling seedling three leaf wholeheartedly after final singling, spacing 3-5 centimetre, weeding, topdresses, waters.
10. as claimed in claim 9 for the male parent interval sowing method of summer radish hybrid seeding, it is characterized in that: the sowing of the male parent third phase adopts plastic mulching, broken hole after emerging, seedling seedling three leaf is rear final singling wholeheartedly, spacing 3-5 centimetre, weeding, topdress, water, and male parent third phase sowing plant with in earlier stage sow plant interval 18-25 centimetre.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108260524A (en) * | 2018-03-13 | 2018-07-10 | 武汉蔬博农业科技有限公司 | A kind of selection of radish cell nucleo-cytoplasmic interreaction male sterility maintainer line |
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| KR20000066485A (en) * | 1999-04-14 | 2000-11-15 | 정광채 | A radish cultivation including in wild ginseng |
| CN103651096A (en) * | 2013-11-15 | 2014-03-26 | 南京市蔬菜科学研究所 | Breeding method of radish with purple peel |
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2015
- 2015-08-28 CN CN201510537016.0A patent/CN105103905B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000066485A (en) * | 1999-04-14 | 2000-11-15 | 정광채 | A radish cultivation including in wild ginseng |
| CN103651096A (en) * | 2013-11-15 | 2014-03-26 | 南京市蔬菜科学研究所 | Breeding method of radish with purple peel |
Non-Patent Citations (3)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108260524A (en) * | 2018-03-13 | 2018-07-10 | 武汉蔬博农业科技有限公司 | A kind of selection of radish cell nucleo-cytoplasmic interreaction male sterility maintainer line |
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