摘要
本文以典型的优势杂交组合为材料，测定了块根分化形成期（苗期）不同叶龄的叶片光化学特性与其杂种优势的关系。结果表明：（１）光化学特性与杂种优势关系密切，其杂１代高的叶绿素含量、希尔反应活力和光合磷酸化活力，可作为早期鉴定和预测杂种优势的指标；（２）叶绿素含量与优势杂种的产量相关性强，而希尔反应活力，光合磷酸化活力与其含糖率关系密切，对选育丰产型和高糖型杂交种具有重要的参考价值。
The relationship between heterosisand
leaf blade photochemical charac-ter at root-forming(seedling)stage was studied.The results
show:(1)There issignificant correlation between heterosis and leaf blade photochemical
character.Chloro-phyll content,Hill reaction activity aiid photosynthetid phosphorylution activity
can beused as indexes for identifying and predicting heterosis at early growing stage;(2)There
is significant correlation between hybrid yield and chlorophyll content.Hill reac-tion activity and
photosynthetic phosphorylution activity are closely related with
sucroseContent.
基金
国家自然科学基金
关键词
甜菜
杂种优势
光合特性
sugarbeet,heterosis,photosynthetic character
