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刺楸(Kalopanax septemlobus Koiaz)是一种深受群众喜爱的速生乔木树种。在自然状态下,主要依靠自身的根蘖能力进行繁殖,现已濒临绝迹的危险。要扩大刺楸的引种栽培,就必须解决该树种的繁育问题。但是国内同类试验结果表明,刺楸种子的发芽率很低。其原因,有认为种子干燥后即进入休眠,休眠不易被打破;有认为种壳坚实不易吸水膨胀;有认为果实或种子内可能含有发芽抑制物质等等。为此,我们从1980年开始,对刺楸种子的发芽问题进行了探索和研究。
Kalopanax septemlobus Koiaz is a fast-growing tree species loved by the masses. In its natural state, relying mainly on its own ability of root tillers to reproduce, is now on the verge of extinction. To expand the introduction and cultivation of Catalpa bungei, it is necessary to solve the breeding problem of the tree species. But the domestic similar test results show that the germination rate of Katsu seeds is very low. The reason that there is that the seeds into the dormancy after drying, dormancy is not easy to be broken; that the shell is not easy to absorb water swelling; that the fruit or seeds may contain germination inhibitory substances and so on. To this end, we started from 1980, the germination of the seeds of the gerbera tree exploration and research.