The relationship between tannins concentration in some cotton varieties and susceptibility to piercing sucking insects

被引：21

作者：

Mansour, MH ^{[1
]}

Zohdy, NM ^{[1
]}

ElGengaihi, SE ^{[1
]}

Amr, AE ^{[1
]}

机构：

[1] FAC SCI, CAIRO, EGYPT

来源：

JOURNAL OF APPLIED ENTOMOLOGY | 1997年 / 121卷 / 06期

关键词：

D O I：

10.1111/j.1439-0418.1997.tb01413.x

中图分类号：

Q96 [昆虫学];

学科分类号：

摘要：

Tannins have been implicated in the resistance of some cotton varieties to insect attack. The relationship between tannin concentration and susceptibility of some Egyptian cotton varieties to piercing sucking insects has been undertaken in the present work. Eight Egyptian cotton derived from Gossypium barbadense and one variety from G. hirsutum were evaluated. There is a significant negative linear relationship between the concentration of tannins in two Egyptian varieties, Giza 70 and Giza 76, and the population density of piercing sucking insects. On the contrary, a positive correlation existed between piercing sucking insect infestation and tannin concentrations in the two cotton varieties, Giza 80 and Giza 81. This may be attributed to the low level of tannins in these two varieties.

引用

页码：321 / 325

页数：5