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本文分析比较了10个甘蔗组合F1代的光合特征及其与叶绿素、产量的关系。结果表明,甘蔗F1代的净光合速率(Pn)、蒸腾速率(E)等光合参数组合间和组合内都是高度分离的,从而证明了甘蔗F1代进行高光效筛选是可行的。而甘蔗叶绿素(chl)、叶绿素a(chla)、叶绿素b(chlb)与净光合速率(Pn)的显著正相关性,说明了叶片的叶绿素含量可作为光合筛选的辅助筛选指标。
This paper analyzed and compared the photosynthetic characteristics of F1 generation of 10 sugarcane combinations and its relationship with chlorophyll and yield. The results showed that the net photosynthetic rate (Pn), transpiration rate (E) and other photosynthetic parameters of sugarcane F1 were highly segregated and their combinations were highly segregated. It was proved that screening of sugarcane F1 with high light efficiency is feasible. The significant positive correlations between chlorophyll (chl), chlorophyll a (chla), chlorophyll b (chlb) and net photosynthetic rate (Pn) of sugarcane indicated that chlorophyll content of leaves could be used as a secondary screening index for photosynthesis screening.