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Production method of rice seeds

A technology for rice seeds and production methods, applied in the directions of botanical equipment and methods, applications, plant genetic improvement, etc., can solve problems such as germplasm resources and safety threats to the seed industry, and achieve large ears and many grains, strong low temperature resistance, and resistance to low temperature. The effect of strong cold ability

Inactive Publication Date: 2015-09-02
ANHUI HUIDA AGRO
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  • Application Information

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Problems solved by technology

What's more serious is that due to the lack of awareness of intellectual property protection, many germplasm resources and genetic resources in my country have been stolen and cloned by foreign countries, and in turn they have become patent means for multinational companies to restrict my country's technological development. Seed industry security poses a threat

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0018] "R900" has large spikes and many grains, strong tillering ability, sufficient pollen and long flowering period. In 2013, "R900" was used as the male parent and the rice photothermosensitive male sterile line Y58S was used as the female parent for seed production in Yongzhou, Hunan. The male parent "R900" was sown in two batches. The first batch was sown on May 22, and the second batch was sown on May 29. The seed was 0.4 kg per mu, and sowed sparsely and evenly. The female parent Y58S was sown on June 5, with 1.75 kg per mu, and the seeding rate per mu of seedling field was 10 kg. While harrowing the field, apply 10 kg of compound fertilizer per mu of seedling field, and the valley will collapse after sowing. Apply 5-7.5 kg / mu of urea when the seedlings have 1.5 leaves, and 5-7.5 kg / mu of urea 5-7 days before transplanting, and kill insects. On June 13th, the field was raked and 15 kg of base fertilizer (composite fertilizer) was added. The male parent was transpl...

Embodiment 2

[0020] In 2013, the "Y58S / R900" rice seeds produced with "R900" as the male parent and the rice photothermosensitive male sterile line Y58S as the female parent were carried out in Niuxing Village, Yanggu'ao Township, Longhui, Hunan Province, to tackle high-yield problems in a 100-acre contiguous area. Sowing on April 12, 2013, transplanting on May 8-16, full earing on August 8, harvesting on September 28, the sowing period is 112 days, and the full growth period is 169 days. The plant height is 129.5cm, the total number of leaves on the main stem is 15, the number of elongated internodes is 6, the effective number of panicles is 2.28 million / hm2, the panicle length is 31.7cm, the total number of grains per panicle is 340.2, the seed setting rate is 93.6%, and the thousand-grain weight is 27.5g . According to the on-site production test and acceptance of the Ministry of Agriculture, the daily output is 5.85kg / d, the harvest index is 0.54, and the actual output is 14.82t / hm...

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Abstract

The invention discloses a production method of rice seeds. The method is characterized in that rice seeds produced by indica / japonica intermediate type restoring series R900 are adopted, wherein the indica / japonica intermediate type restoring series R900 are the intermediate materials which are prepared through wide spectrum and wide compability gene according to the high heterosis of indica / japonica subspecies; the intermediate materials are large in capacity, sufficient in source, high in ripening rate, and good in circularity; then the high pressure sieving is carried out to select multi-antibody seedling germplasm with polymerized indica / japonica stress resistance genes; the new rice spicy with high output, high quality and unified multi-antibody performances can be selected by rice inspection.

Description

technical field [0001] The invention relates to the technical field of breeding of new plant varieties, in particular to a method for producing rice seeds. Background technique [0002] Rice is one of the most important food crops in my country and even in the world. Relying on scientific and technological progress to continue to greatly increase the yield of rice is an inevitable choice to solve the problem of global food security. Since the 1980s, Japan, the International Rice Institute and other countries and institutions have successively implemented super rice breeding programs, but due to the difficulty, the technical route is not perfect, and the varieties bred are difficult to expand due to problems such as rice quality, stress resistance and seed setting rate. Area promotion has so far been unsuccessful. The Ministry of Agriculture of my country launched the Super Rice Breeding Program in 1996. In 1997, Academician Yuan Longping published the famous "Hybrid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02A01H1/04
Inventor 不公告发明人
Owner ANHUI HUIDA AGRO
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