Breeding and high-yielding seed production of new hybrid rice'Hanyou 640'with green and high-quality,water-saving and drought-resistance
'Hanyou 640'is a new Indica hybrid rice variety developed by Shanghai Agrobiological Gene Center with Huhan 5A as the sterile line and Hanhui 1640 as the restore line.It has the advantages of water-saving and drought-resistance(WDR),disease resistance,high-quality,and wide adaptability.The new combination was approved and released by the Shanghai Crop Variety Approval Committee in 2021.This research introduced the breeding process and characteristics of'Hanyou 640'.The techniques for sterile line propagation and hybrid seed production were also summarized.The research could provide reference for the large-scale promotion and application of'Hanyou 640'.
Hybrid rice'Hanyou 640'Water-saving and drought-resistance riceHigh-qualityBreeding
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