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10个小麦品种对UV-B辐射增强响应的生长和产量差异

Keywords: 小麦,UV-B辐射,生长,产量,种内差异

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Abstract:

在大田条件下,模拟UV-B辐射增强(5.0kJ·m-2,相当于昆明地区臭氧层减少20%),着重研究了10个小麦品种对UV-B辐射响应的生长和产量差异。结果表明,经增强UV-B辐射,10个小麦品种在株高、叶面积指数、分蘖数、地上部分的生物量、产量都发生了明显的变化,且存在种内差异;分蘖数的变化是引起地上生物量(r=0.94,P辽春9>绵阳20>文麦3>文麦5>陇春15>云麦39>凤麦24>会宁18>陇春16。

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