Breeding method for large-ear high-quality rice variety in machine-transplanted seedling planting
A technology for mechanical transplanting and varieties, which is applied in the directions of botanical equipment and methods, plant genetic improvement, and application to achieve the effects of large-scale production, strong lodging resistance, and expansion of the planting area of mechanically transplanted rice.
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[0021] Embodiment: the breeding process of Sidao No. 16
[0022] (1) In the season of Siyang in 2009, Suxiu 867 was used as the female parent and Sidao 09-5966 was used as the male parent to perform hybrid mating to obtain hybrid F1 seeds;
[0023] (2) In the winter of 2009, hybridized F1 generation seeds were planted in Hainan Breeding Base, and F2 generation seeds were obtained by mixed harvesting;
[0024] (3) Continuously planted for multiple generations from 2010 to 2012, adopting the method of single plant screening, screening offspring materials with good performance in the field, large panicle type, more than 120 grains per panicle, and suitable plant height (95cm-105cm) , combined with indoor appearance quality test varieties, screening offspring materials with good rice appearance, slender rice grains, low chalky grain rate and chalkiness degree (chalky grain rate less than 30%, chalkiness degree less than 5%), Obtained 29 copies of relatively stable F7 generation m...
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