在形态学上，美国品种能随光强度的增强而增加叶片厚度，而桂朝2号则不能。
Morphologically, the leaf thickness of US rice could increase as the light intensity increased, but couldn't for Gui-Chao 2.
幼苗经低温处理后，根系电导、幼苗转绿、叶片叶绿素荧光对低温的敏感性亦是麻线谷小于桂朝。
After the seedlings treated low temperature the sensitivities of root conductivity, etiolated seedlings, chlorophyll fluorescence of leaves in Maxiangu were also less-sensitive than in Gulchao.
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