杂交中粳9优138高产栽培及高产制种技术

9优 138 (92 0 1A×N138)是一个高产兼顾优质的杂交中粳组合。 1994～ 1995年参加江苏省杂交中粳区试和生产试验 ,2 a区试平均比对照徐优 3- 2增产 9.5 0 % ,生产试验比对照增产 17.6 6 %。大面积种植产量在 9.75 t/hm2 左右 ;1997～ 1999年多点次出现 11.2 5 t/hm2以上的高产田块。其外观米质中上 ,主要理化指标达部颁优质米标准。突出特点是株型优良、生长繁茂、穗大粒多、灌浆速度快、结实率高、耐肥抗倒性好。 92 0 1A不育性稳定 ,配合力强 ,开花习性好 ,异交结率高。 N138恢复力强 ,花粉量足

The Cultivation and Seeds Production Technique with High Rield o f Japonic Hybrid Rice Combination-9 you 138

Japonic hybrid rice combination—9 you 138 was with the characters of both high yield and good quality.The results in Jiangsu province regional and production trail showed that its yield increased 9.50% and 17.66% more than Xuyou 3-2(CK) respectively.The yield amounded to 9.75t/hm 2 in large areas production.The index of grain quality met the demand of good quality grain standard of MOA.Ideal plant structure,vigor growth,large spike and more seeds and high ratio of seed setting ets,were its advantages.Its sterile line 9201A was with the character of stable fertility and strong combining ability etc,and restore line was with the character of strong restore ability and enough pollens.