杂交稻“汕优63”在信阳制种的气候问题及其对策

杂交稻“汕优63”在信阳制种的花期阴雨危害问题特别突出,避开阴雨的最佳花期是7月底至8月初;为了提早制种花期,必须设法克服父本播种期温度条件的限制,采取保护性育秧措施;母本秧苗期正逢梅雨季,不利于培育壮秧、搭好苗架,也应采取相应对策。

The Climate Problem of Hybrid Rice "Xian You63" Breeding in xinyang and the Countermeasure

The flowering phase during an unbroken spell of wet wether is an knotty problem to hybrid rice "Xian You63" breeding in Xin Yang, the best floweriny phase avoiding the overcase and raings is in the Late of July and the early of August; To move up the breeding flowering phase, the climate condition limitation of the male parent sowiny date must be overcome, take the measure of protected rice seedling, The seedling dates of famdle parenc meet the raing season,which is harmfal to Culture seedling, so the countermeasure sould taken owe.