大豆品种抗大豆食心虫机制初步探讨

A PRELIMINARY RESEARCH ON THE RESISTANCE OF SOYBEAN VARIETIES TO THE SOYBEAN POD BORER

大豆鼓粒盛期的豆荚荚皮硬度在抗、感大豆食心虫材料间差异显著,抗虫材料的荚皮硬度显著高于感虫材料,并且荚皮硬度与幼虫入荚死亡率间有正相关关系。大豆成熟后荚皮的颜色对虫食率高低有一定的影响,在供试的材料内荚皮为黑色的材料均有一定的抗虫性。

The hardness of the soybeon pods during the seed fulling period was significont difference between resistant varieties and susceptible varieties.The hardntss of the pods of the resistant varieties was strongersignificantly than susceptible varieties'and the hardness of soybean podscorrelated positively to the percentage of larvea that died when attemp-ting to bore into the pods.Resistance to soybean Pod Borer was found tobe related to the colour of the ripe soybean pods.Our experiment indica-ted that the varieties with black pods were resistance to Soybean PodBorer in some degree.