大白菜花粉直感效应研究

Studies on Xenia Effect of Chinese Cabbage

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。

The aim was to study whether xenia effect existed in Chinese cabbage. Taking 14S116 as female parent and 14S443,14S375,14S120,14S502,14S393,14S536 as male parent,and taking 14S193 as female parent and14S443,14S125,14S116,14S375,14S531 as male parent,and taking 92S24 A as female parent and 8407,72 M,Da T511,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 14S116 were respectively intercrossed,1000-grain weight seed were determined,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. Overparent heterosis and heterosis were presented.