CN101617626A - Culture method of novel strain type high-yield disease resisting rice - Google Patents
Culture method of novel strain type high-yield disease resisting rice Download PDFInfo
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- CN101617626A CN101617626A CN200910101335A CN200910101335A CN101617626A CN 101617626 A CN101617626 A CN 101617626A CN 200910101335 A CN200910101335 A CN 200910101335A CN 200910101335 A CN200910101335 A CN 200910101335A CN 101617626 A CN101617626 A CN 101617626A
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Abstract
The invention relates to a culture method of novel strain type high-yield disease resisting rice, which comprises the following steps: collecting rice materials, soaking seeds and sprouting, sowing the seeds to a rice seed-bed, and selecting and remaining the rice materials with narrow long and slightly bending leaf blades before transplanting seedlings at 5 to 6 leaf age stage; transplanting single plants to the field; selecting and remaining the rice materials with narrow long and slightly bending leaf blades and loosening plants before stooling stage; selecting and remaining the rice materials leaves of which gradually erect, strains are gradually compact and no banded sclerotial blight damage generates at the stooling peak stage and the jointing stage; selecting and remaining the rice materials leaves of which are narrow and long and completely erect, plants are highly compact and no banded sclerotial blight damage generates at the heading stage and the adult stage; planting according to side transplanting by the same method for planting single plants; measuring the yield and selecting and remaining the rice materials with yield increase by over 10 percent; planting the rice materials; evaluating and verifying the shape of the plants and the leaves, high-yield performance and the stability of banded sclerotial blight resistance; and propagating the stable materials to obtain a novel rice material with high yield and disease resistance.
Description
Technical field
The present invention relates to a kind of breeding method of novel strain type high-yield disease resisting rice.
Background technology
Paddy rice is the of paramount importance cereal crops of China, to ensureing that grain security has very important effect.Therefore, how adopting new agricultural science and technology, explore brand-new Rice Production mode, promote the sustained, stable growth of total grain output effectively, is the important topic of guaranteeing that China's grain security urgent need is explored.
The raising of rice yield and storehouse, source balanced relation are close, and the supply of sufficient source is the basis that the seed nutrient accumulation is realized high yield.The building up and supply that effectively to utilize solar energy with paddy rice be prerequisite of source.In whole growing process, the whole colony of paddy rice builds up a dynamic process, promptly is a remarkable progressive formation that changes from small to big, the plantation space directly related with it then be one by the limited process that fully diminishes greatly.Therefore, how allowing dynamically maximum using solar energy of paddy rice among whole fertility rank, is the important research contents of novel strain type paddy rice, and what ensure the source builds up, realizes rice high yield.
Just under this background, the present invention proposes a kind of breeding method of novel strain type high-yield disease resisting rice, be intended to dynamically consider that the plant type of paddy rice builds up, impel paddy rice to effectively utilize solar energy and realize the raising of rice yield in that whole growing stage is more abundant, the special leaf attitude of strain can allow paddy rice avoid the harm of banded sclerotial blight simultaneously.
Summary of the invention
The object of the present invention is to provide a kind of breeding method of novel strain type high-yield disease resisting rice.
The breeding method of novel strain type high-yield disease resisting rice may further comprise the steps:
1) collect rice material, presoaking and germinating is sowed at the rice seedling bed;
2) transplant in the seedling 5-6 leaf age phase before, observe leaf morphology;
3) rice material that blade is long narrow and slightly drape over one's shoulders of selecting and remain is transplanted into the land for growing field crops by single-strain planting, observes blade and plant forms before tillering stage;
4) select and remain blade long narrow and slightly drape over one's shoulders, rice material that plant is loose, continue the form of observing blade and plant, investigation banded sclerotial blight harm situation in tiller Sheng phase and shooting stage;
5) select and remain that blade becomes uprightly gradually, plant becomes compact, no banded sclerotial blight hazard rice material gradually, continues at heading stage and becomes the strain phase to continue observation blade and plant forms, investigate banded sclerotial blight and endanger situation;
6) select and remain blade long and narrow and fully upright, compact, the no banded sclerotial blight hazard rice of plant height material carry out seminal propagation;
7) continue the selected rice material of plantation step 6), plant by the clump mode of inserting and be transplanted into the land for growing field crops, observe blade and plant forms, investigation banded sclerotial blight harm situation with the same quadrat method of single-strain planting;
8) select and remain and the identical rice material of single-strain planting performance, measure output, the rice material of the output of selecting and remain volume increase more than 10%;
9) continue the selected rice material of plantation step 8), estimate the stability of the leaf attitude of checking strain, highly yielding ability and anti-banded sclerotial blight, stable material is bred, obtain the paddy rice new material of novel strain type high-yield disease resisting.
Above-mentioned collection rice material can be strain and plant, transfer-gen plant and the strain that rice varieties, germ plasm resource, the mutagenesis of collecting China various places produces.
Above-mentioned paddy rice novel strain type is meant that the leaf attitude of strain of this paddy rice can utilize solar energy more efficiently at whole growing stage, promptly before seedling phase and tillering stage blade long narrow and slightly drape over one's shoulders, plant is loose, become gradually uprightly at tiller Sheng phase and shooting stage blade, it is compact that plant becomes gradually, at heading stage with becomes that strain phase blade is long and narrow and complete uprightly, plant height is compact.
Above-mentioned high yield is meant that the yield increased kind volume increase of this paddy rice is more than 10%.
The above-mentioned disease-resistant whole growing stage of this paddy rice that is meant does not have the harm of banded sclerotial blight.
The leaf attitude of strain that above-mentioned stability is meant selected paddy rice and highly yielding ability can be expressed consistent (2 seasons and more than) between different year between (2 years and more than), season and intersite (2 places and more than), and anti-close anti-banded sclerotial blight characteristic and output are not subjected to the appreciable impact in time, season and place.
Beneficial effect of the present invention is:
The novel strain type high-yield disease resisting rice that the present invention cultivates considers that dynamically the plant type of paddy rice is built up, and can make this paddy rice at the more efficient solar energy that utilizes fully of whole growing stage, ensures the high yield of paddy rice from technological layer; Meanwhile, the special leaf attitude of strain also can allow this paddy rice avoid the harm of banded sclerotial blight.
Embodiment
Below further specify the present invention by instantiation.
Embodiment 1: from mutagenesis plant cultivating novel strain type high-yield disease resisting rice NPTRice-1
With from the main rice-cultivating kind of China and core backbone parent 93-11 cobalt-60 ray mutagenic treatment through 350Gy, more than 50000 the mutagenesis two generations mutant that made up in 2003 is material, with the mutant presoaking and germinating, system is sowed at the rice seedling bed by strain, observe leaf morphology before transplanting in the seedling 5-6 leaf age phase, 63 parts of the long narrow and rice materials that slightly drape over one's shoulders of the blade of selecting and remain, be transplanted into the land for growing field crops by single-strain planting, it is long narrow and slightly drape over one's shoulders to observe the blade of selecting and remain before tillering stage, 35 parts of the loose rice materials of plant, continuation is observed the blade of selecting and remain in tiller Sheng phase and shooting stage and is become upright gradually, it is compact that plant becomes gradually, 7 parts of no banded sclerotial blight hazard rice materials, continuation heading stage with to become the strain phase continue to observe to select and remain blade long and narrow and upright fully, the plant height compactness, 4 parts of no banded sclerotial blight hazard rice materials, continuation is planted by the clump mode of inserting and is transplanted into the land for growing field crops, observe 3 parts of the rice materials identical selected and remain with the same quadrat method of single-strain planting with the single-strain planting performance, measure output, 2 parts of the rice material of the output of selecting and remain volume increase more than 10%, continuous 3 years of 2006-2008 is in Zhejiang Hangzhou, Jiande and Lingshui, Hainan 3 years, 3 points, (season morning in three seasons, summer and winter) estimate and verify the leaf attitude of strain, the stability of highly yielding ability and anti-banded sclerotial blight, acquired character can be for many years, multiple spot and Duo Ji stably express, 1 part of the paddy rice new material of volume increase 13% is numbered NPTRice-1.
Embodiment 2: cultivate novel strain type high-yield disease resisting rice NPTRice-2 from China's germ plasm resource
With from China Zhejiang, Jiangxi, Anhui, Yunnan, Sichuan, the Hunan, the rice germplasm resource that provinces and cities such as Hubei and Guangdong collect is a material for 2563 parts, presoaking and germinating, system is sowed at the rice seedling bed by strain, observe leaf morphology before transplanting in the seedling 5-6 leaf age phase, 32 parts of the long narrow and rice materials that slightly drape over one's shoulders of the blade of selecting and remain, be transplanted into the land for growing field crops by single-strain planting, it is long narrow and slightly drape over one's shoulders to observe the blade of selecting and remain before tillering stage, 17 parts of the loose rice materials of plant, continuation is observed the blade of selecting and remain in tiller Sheng phase and shooting stage and is become upright gradually, it is compact that plant becomes gradually, 4 parts of no banded sclerotial blight hazard rice materials, continuation heading stage with to become the strain phase continue to observe to select and remain blade long and narrow and upright fully, the plant height compactness, 3 parts of no banded sclerotial blight hazard rice materials, continuation is planted by the clump mode of inserting and is transplanted into the land for growing field crops, observe 2 parts of the rice materials identical selected and remain with the same quadrat method of single-strain planting with the single-strain planting performance, measure output, 1 part of the rice material of the output of selecting and remain volume increase more than 10%, continuous 3 years of 2006-2008 is in Zhejiang Hangzhou, Jiande and Lingshui, Hainan 3 years, 3 points, early, estimate the leaf attitude of checking strain in summer and three seasons of winter, the stability of highly yielding ability and anti-banded sclerotial blight, acquired character can be for many years, multiple spot and Duo Ji stably express, 1 part of the paddy rice new material of volume increase 13% is numbered NPTRice-2.
Claims (2)
1. the breeding method of a novel strain type high-yield disease resisting rice is characterized in that may further comprise the steps:
1) collect rice material, presoaking and germinating is sowed at the rice seedling bed;
2) transplant in the seedling 5-6 leaf age phase before, observe leaf morphology;
3) rice material that blade is long narrow and slightly drape over one's shoulders of selecting and remain is transplanted into the land for growing field crops by single-strain planting, observes blade and plant forms before tillering stage;
4) select and remain blade long narrow and slightly drape over one's shoulders, rice material that plant is loose, continue the form of observing blade and plant, investigation banded sclerotial blight harm situation in tiller Sheng phase and shooting stage;
5) select and remain that blade becomes uprightly gradually, plant becomes compact, no banded sclerotial blight hazard rice material gradually, continues at heading stage and becomes the strain phase to continue observation blade and plant forms, investigate banded sclerotial blight and endanger situation;
6) select and remain blade long and narrow and fully upright, compact, the no banded sclerotial blight hazard rice of plant height material carry out seminal propagation;
7) continue the selected rice material of plantation step 6), plant by the clump mode of inserting and be transplanted into the land for growing field crops, observe blade and plant forms, investigation banded sclerotial blight harm situation with the same quadrat method of single-strain planting;
8) select and remain and the identical rice material of single-strain planting performance, measure output, the rice material of the output of selecting and remain volume increase more than 10%;
9) continue the selected rice material of plantation step 8), estimate the stability of the leaf attitude of checking strain, highly yielding ability and anti-banded sclerotial blight, stable material is bred, obtain the paddy rice new material of novel strain type high-yield disease resisting.
2. the breeding method of the described novel strain type high-yield disease resisting rice of root a tree name claim 1 is characterized in that said collection rice material is strain and plant, transfer-gen plant and the strain of the rice varieties of China various places, germ plasm resource, mutagenesis generation.
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| CN200910101335A CN101617626A (en) | 2009-07-30 | 2009-07-30 | Culture method of novel strain type high-yield disease resisting rice |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104878020A (en) * | 2015-04-29 | 2015-09-02 | 华中农业大学 | Gene for controlling rice stem-leaf angle and application of gene |
| CN105660160A (en) * | 2016-03-23 | 2016-06-15 | 安徽省农业科学院水稻研究所 | Cultivation method for direct-sowing rice bow-shaped plants |
-
2009
- 2009-07-30 CN CN200910101335A patent/CN101617626A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104878020A (en) * | 2015-04-29 | 2015-09-02 | 华中农业大学 | Gene for controlling rice stem-leaf angle and application of gene |
| CN104878020B (en) * | 2015-04-29 | 2017-09-15 | 华中农业大学 | A kind of gene for controlling the upright sexual development of rice leaf and its application |
| CN105660160A (en) * | 2016-03-23 | 2016-06-15 | 安徽省农业科学院水稻研究所 | Cultivation method for direct-sowing rice bow-shaped plants |
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Open date: 20100106 |