22个常绿杜鹃远缘杂交种子萌发特性

Xu Feng,Song Jie,Zhang Yiping,Zhang Baoqiong,Yang Xiumei,Zhang Lifang,Wang Lihua,Xie Weijia

Chinese Agricultural Science Bulletin（2020）

Cited 1|Views25

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Abstract

为实现野生种质的育种应用,筛选出适宜作为亲本的杜鹃花种类.本研究以4个常绿杜鹃亚属野生种(大白杜鹃、宽杯杜鹃、蓝果杜鹃和黄杯杜鹃)为父本与17个常绿杜鹃花品种杂交所获得的种子为试验材料,研究各杂交种子的形态特征、种子发芽率、种子发芽势、种子发芽指数和种子平均发芽时间等,以期对各种类作为父本应用的杂交优势性进行评价.结果表明:外形饱满、两端有翅的纺锤形瘦长种子更易于萌发,4个常绿杜鹃亚属野生种作为父本的优势性依次为:大白杜鹃＞宽杯杜鹃＞蓝果杜鹃＞黄杯杜鹃.

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