Production method of rice seeds
A rice seed and production method technology, applied in horticultural methods, botanical equipment and methods, plant regeneration, etc., can solve the problems of germplasm resources and the threat to the safety of the seed industry, and achieve large ears and many grains, good palatability, and rice taste Full effect
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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 transplante...
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 / hm2, s...
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