摘要
在有利于玉米双穗发生的冀西北高寒地区 ,通过对典型双穗组合农大 1 0 3和典型单穗品种克单 6号双穗分化进程的观察发现 ,二者第 1、2果穗分化的同步性明显不同。同时发现在分化、抽丝和成穗的发育进程中 ,它们各自双穗发育的同步性前后一致。另外对 6 4个不同多穗性玉米组合双穗发育的研究表明 ,其双穗分化的同步性与抽丝的同步性、以及抽丝同步性与成穗同步性之间均呈极显著的正相关。根据这些组合双穗发育同步性的表现 。
The studies on synchrony of differentiation, silking and kernel bearing between apical and sub apical ear in forage maize were conducted in the cold upland of north west Hebei province, where the maize prolificacy was enhanced The results showed that the double ear differentiation synchrony of prolific hybrid ND103 was distinct from that of non prolific hybrid Kedan 6 The synchrony of double ear differentiation, silking and kernel bearing was consistent for each of the two hybrids In addition, the researches on 64 hybrids with different prolificacy demonstrated that there were significant positive relationships in double ear synchrony between differentiation and silking, and between silking and kernel bearing And according to their double ear development synchrony, these hybrids were classified and their prolificacy was evaluated preliminarily
出处
《作物学报》
CAS
CSCD
北大核心
2004年第4期388-392,共5页
Acta Agronomica Sinica
基金
国家"十五"科技攻关项目 ( 2 0 0 1BA5 0 7A0 9 0 3 )
国家 863饲用作物优质高产品种选育项目
