【摘要】 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。更多还原

【Abstract】 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 production technology points of Tongyoujing 1 include appropriate seeding(the difference 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 adequate fertilization for female parent), reasonably regulating flowering period(to promote flower synchronization), artificial pollination(to improve outcrossing rate), paying attention to miscellaneous plant removal and pest control and timely harvest.更多还原