杂交晚粳通优粳1号高产制种技术(英文)

通优粳1号父母本生育期相差4~6d,播始历期相差3~5 d,父本植株比母本高6~8 cm,花时比母本早30~60 min。制种技术要点:适期播种,父母本播差期3~5 d;适时移栽,合理布局,父母本行比一般以2∶(6~8),加强品种隔离;科学肥水管理,强父足母;合理调控花期,促进花期相遇;人工授粉,提高异交结实率;重视去杂保纯和病虫防治,适时收获。

High-yield Seed Production Techniques of Late Japonica Hybrid Rice Tongyoujing 1

The differences in growth period and seeding to heading duration of both parents of Tongyoujing 1 are 4-6 and 3-5 d, respectively. Plant height of the male parent was 6-8 cm higher than that of the female parent, and blooming time of the male parent was 30-60 min earlier than that of the female parent. The seed pro-duction technology points of Tongyoujing 1 include appropriate seeding (the differ-ence in sowing period of both parents is 3-5 d), timely transplanting, reasonable layout (ratio of rows between both parents is 2:(6-8)), strengthening variety isolation, scientific fertilizer and water management (high fertilization for male parent and ade-quate fertilization for female parent), reasonably regulating flowering period (to pro-mote flower synchronization), artificial pollination (to improve outcrossing rate), paying attention to miscel aneous plant removal and pest control and timely harvest.