Study on the Lymantria dispar Linnacus Insect Resistance of the Transgectic Triploid Hybrids of Populus tomentosa Carrying Two-resistant Genes(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Study on the Lymantria dispar Linnacus Insect Resistance of the Transgectic Triploid Hybrids of Populus tomentosa Carrying Two-resistant Genes

Author(s):: YUAN Sheng-liang; ZHANG Na; ZHOU Guo-na; Hebei Agricultural University,Baoding,Hebei 071000

Keywords:: two-resistant genes; triploid hybrids of Populus tomentosa; Lymantria dispar Linnacus; developmental periods; molting calendar index

Abstract:: With group feeding method in laboratory,the resistance of 15 clones of two-resistant genes triploid hybrids of Populus tomentosa on Lymantria dispar Linnacus was measured.The results showed that the tested plants were divided into third groups,high resistant,middle resistant and low resistant according to mortality,the mortality of instar larvae killed by high resistant clones was over 95,and the mortality of the larvae killed by middle resistant clones was between 40 and 75,the mortality was under 30 when feed with the low resistant clones.Analyzed and compared the developmental periods,molting calendar index and toxic effect of Lymantria dispar Linnacus feed with the three kinds of transgenic Triploid hybrids of Populus tomentosa,the results showed that the conclusion in the correction mortality was consistent with the rules reflects of development period,molting calendar index and toxic effect on Lymantria dispar Linnacus.

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Last Update: 2014-08-24