不同品种金丝小枣对浆烂病的抗病性研究

Study on the Resistance to Thick Rotten Disease of Different Varieties of Ziziphus jujuba Mill. cv. Jinsixiaozao

为了筛选出抗浆烂病的优良金丝小枣品种,本研究以普通金丝小枣(CK)、金丝新1、金丝新2、金丝圆丰、金丝长丰和沧无3号6个金丝小枣品种为试材,分别于8月上旬、8月下旬和9月中旬(发病盛期),调查了不同品种金丝小枣的浆烂病发病率。结果表明:3个调查时期,5个试验枣树品种的浆烂病发病率均显著<对照品种普通金丝小枣。其中在发病盛期,金丝圆丰、沧无3号和金丝长丰3个品种的发病率均较低,发病率分别仅为2.87%、3.03%和3.33%,差异不显著,但均显著<金丝新1和金丝新2。金丝圆丰、沧无3号和金丝长丰3个品种的抗浆烂病能力强,可以在生产上推广应用。

Taking common Jinsixiaozao （CK）, Jinsixin 1, Jinsixin 2, Jinsiyuanfeng, Jinsichangfeng and Cangwu No. 3 as the test materials, the incidence of thick rotten disease of different varieties of Ziziphus jujuba Mill. cv. Jinsixiaozao in early August, late August and middle September （the incidence peak period ） were investigated in order to screen out the excellent varieties resistant to thick rotten disease. The results showed that the incidences of thick rotten disease of 5 varieties of Ziziphus jujuba Mill. cv. Jinsixiaozao were lower than CK in three periods. The incidences of the disease of Jinsiyuanfeng, Cangwu No. 3 and Jinsichangfeng in the incidence peak period were 2. 87%, 3.03% and 3.33%, respectively, the three differences were not significant, but they were all lower than Jinsixin 1 and Jinsixin 2. It indicated that Jinsiyuanfeng, Jinsichangfeng and Cangwu No. 3 had stronger resistance to thick rotten disease, which could be applied in production.