玉米雄穗对亚洲玉米螟抗性初步鉴定

PRELIMINARY EVALUATION OF MAIZE TASSEL FOR RESISTANCE TO THE ASIAN CORN BORER, OSTRINIA FURNACALIS （GUENEE）

摘要:

用人工接种方法共鉴定了206份玉米品系雄穗的抗螟性。在田间条件下发现幼龄幼虫的矫正存活率B₇₃为30％;SD₃₇为51.2％和FR₁₄₀为66.7％。发现取食FR₁₄₀雄穗的幼龄幼虫体重最轻,平均为1.20mg（感虫对照为2.05mg）。本结果可作为进一步研究雄穗抗螟性的参考。

Abstract:

Tassel of 203 maize strains were e/aluatel for resistance to Asian coin borer using artificial infestation technique. Under the field condition, corrective survival rate of young larvae were 30% on B₇₃, 51.2% on SD₃₇ and 66.7% on FR₁₄₃, and lowest mean larval weight of 1. 20mg was found on FR₁₄₁. These strains may be used as materials for future resistance studies.