大白菜花粉直感效应研究

为了研究大白菜中是否存在花粉直感效应,以14S116为母本,14S443、14S375、14S120、14S502、14S393、14S536为父本,配置杂交种;以14S193为母本,14S443、14S125、14S116、14S375、14S531为父本,配置杂交种;以92S24A为母本,8407、72M、Da T511、Da164-2-1、14S126、14S375、山东4号、芥菜、Da秦3为父本,配置杂交组合。测定杂交当代角果的果荚长、果荚宽、果喙长、种子形状、单荚种子数以及千粒质量,获得中亲优势、杂种优势和父本效应。另外,JY3与JY4、JY5与JY6、JY19与JY20、Bre与夏胜、92S24与夏胜、14S375与14S116进行互交,测定千粒质量,得到中亲优势、杂种优势和父本效应,并观测了部分组合的种子形状和种皮颜色。结果表明:花粉在杂交当代直接影响组合千粒质量、荚果的果荚长、果荚宽、果喙长、种子形状及单荚种子数,也表现出杂种优势和超亲优势。

Studies on Xenia Effect of Chinese Cabbage

The aim was to study whether xenia effect existed in Chinese cabbage.Taking 14S1 16 as female par-ent and 14S443,14S375,14S120,14S502,14S393,14S536 as male parent,and taking 14S193 as female parent and 14S443,14S125,14S1 16,14S375,14S531 as male parent,and taking 92S24A as female parent and 8407,72M, DaT5 1 1 ,Da164-2-1 ,14S126,14S375,Shandong number 4,Jiecai,Da qin 3 as male parent,hybrids were prepared, and silique length,silique width,beak length,shape of seed,seed number of per pod,1000-grain weight,from which mid-parent,heterosis and male effect were acquired.Another,JY3 and JY4,JY5 and JY6,JY19 and JY20,Bre and Xiasheng,92S24 and Xiasheng,14S375 and 14S1 16 were respectively intercrossed,1000-grain weight seed were de-termined,and shope of seed and color of seed from some hybrids were observed,from which mid-parent,heterosis and male effect were acquired.The results showed that length and width of the silique,beak length,shape of seed, seed number of per pod,1000-grain weight of F0 affected by pollen from different male parent were detected.Over-parent heterosis and heterosis were presented.