冬枣果实发病前后几种内含物含量变化的初步研究

Relation Between Fruit' Contents of Ziziphus jujube Mill. var. inermis and Existence of Pathogens

近年来,冬枣果实病害大有加重的趋势,病原发展也呈现多样化。对谢花后不同日龄果实的几种内含物,可滴定酸、可溶性糖、果胶质、单宁含量进行对比以及不同时期冬枣健果与病果比较。初步认为,冬枣果实内的酸、果胶和单宁与果实病原生存具有相关性;冬枣果实发病前后可溶性糖的含量变化较大,可能与感病性有关。

Nowadays, the diseases of the fruits on Ziziphus jujube Mill. var. inermis have become more and more serious and there are also many kinds of pathogens. After testing the quantity of some kinds of contents, comparing the healthy fruits and the diseased fruits of the Ziziphus jujube Mill. var. inermis; comparing the fine fruits and the sick fruits of the Ziziphus jujube Mill. var. inermis in different breeding courses. The results shows that the fruits' acid, pectin and the tannin are in relation to the resistance of the diseases and the suger is relevant to the infection of the deseases.