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对几种主要泡桐种籽成熟期的研究,目的在于弄清楚几种主要泡桐种籽从什么时候开始有发芽能力,什么时候采摘发芽率最高,为泡桐杂交育种、实生选种等提供科学依据。以往普遍认为泡桐种籽成熟在十月以后,蒴果变灰褐色时方可采收。实际上十月以后部分蒴果已开裂种籽飞出,往往达不到采种目的,针对上述情况,现将下面几个处理的研究方法及结果整理如下: 1.不同采种时间对种籽发芽率的影响。 2.不同时期采种存放半年后对种籽发芽率的影响。 3.催芽时间长短与发芽率的关系。一、材料与方法研究材料均系我省当地品种和引进外
The purpose of studying the maturity stages of several main paulownia trees is to find out when the main paulownia seed germinates and when the highest germination rate is obtained, which provides a scientific basis for paulownia hybrid breeding and seed selection. In the past generally considered Paulownia seed maturity in October after the capsule turned gray brown before harvesting. In fact, after some capsules have cracked seeds flying out after October, they often fail to achieve the purpose of seed collection. In view of the above, the research methods and results of the following treatments are summarized as follows: 1. The germination rate influences. 2 different periods of seed storage after six months on the seed germination rate. 3 germination time and germination rate of the relationship. First, materials and methods Research materials are the local varieties of our province and the introduction of foreign