Heteroses in Net Photosynthetic Rate, Leaf Area, Tillering, and Some Physiological Characters of 35 F1 Rice Hybrids
Heteroses in Net Photosynthetic Rate, Leaf Area, Tillering, and Some Physiological Characters of 35 F1 Rice Hybrids
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35个F1水稻杂交种的净光合速率、叶面积、分蘖及部分生理特性中的杂糖
DOI：
10.1093/jxb/36.2.274
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发表时间：
1985
影响因子：
6.9
通讯作者：
S. Yoshida
中科院分区：
文献类型：
--
作者：
M. Yamauchi;S. Yoshida
对35个f1水稻（Oryza sativaL.）杂交种营养期的净光合速率、叶面积、分蘖、茎重和叶面积比与亲本品种进行了比较。茎重和叶面积表现出杂种优势。杂种活力不反映在净光合速率上。叶片面积与茎部干重和分蘖的杂种优势密切相关。因此，f1水稻杂交种生长旺盛，是因为它们的叶面积发育高，这是由高分蘖引起的。
Net photosynthetic rate, leaf area, tillering, shoot weight, and leaf area ratio for 35 F1rice (Oryza sativaL.) hybrids during the vegetative stage were compared with corresponding values for parental varieties. Shoot weight and leaf area showed heterosis. However, hybrid vigour was not reflected in net photosynthetic rate. Leaf area was closely correlated with heteroses in shoot dry weight and tillering. Thus F1rice hybrids grow vigorously because of their high leaf area development, which is caused by high tillering.