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橡胶育种的新动向表现在如下两个方面:①方法和技术的改进;②育种目标的改变。本文只论述第一个问题。一、杂交橡胶树雌雄同株,一年通常开花两次。雌雄花排列成圆锥花序,既能自花传粉又能异花授粉。它是虫媒花,据War-
The new trend of rubber breeding in the performance of the following two aspects: ① methods and techniques to improve; ② breeding objectives change. This article deals only with the first question. First, hybrid rubber tree hermaphrodite, flowers usually twice a year. Male and female flowers arranged in panicles, both self-pollination and cross-pollination. It is insect flower, according to War-