农学学报2012，Vol.2Issue(6)：6-9,4.
花铃期棉花光合日变化研究
Studies on Daily Changes of the Net Photosynthetic Rate of Cotton at Blossoming and Boll Forming Stage
摘要
Abstract
Photosynthesis is the important factors for yield formation, research on Diurnal Variation of Photosynthesis have guiding value for exploration the Rule of dry matter accumulation and yield-increasing mechanism of cotton.With CB-1102 Portable Photosynthetic System, the photosynthetic rate of cotton leaf was studied at blossoming and boll forming stage. The results showed that daily changes of net photosynthetic rate presented a bimodal curve, peak value appeared at 10：00 and 15：00, midday depression appeared at 13：00; transpiration rate presented a bimodal curve, peak value appeared at 11：00 and 15：00; stomatal conductance presented a bimodal curve, peak value appeared at 10：00 （small） and 15：00 （maximum peak）; Variation of intercellular CO2 concentration appeared ＂V＂ shape, lowest value appeared at 12：00.关键词
棉花/净光合速率/蒸腾速率/气孔导度/细胞间隙CO2浓度/日变化Key words
Cotton/Net Photosynthetic Rate/Transpiration Rate/Value of Stoma Conductance/Intercellular CO2 Concentration/Daily Changes分类
农业科技引用本文复制引用
卢成达,郭志利..花铃期棉花光合日变化研究[J].农学学报,2012,2(6):6-9,4.基金项目
山西省科技攻关项目 （）
山西省农业科学院重点招标项目（YZDl012）. （）
