The related indicators of photosynthesis and agronomic characters of 12 peanut cultivars were investigated; the correlation between photosynthetic characters and agronomic characters was studied in this paper. The subject is to research the relationship between photosynthesis and agronomic characters and lay a foundation for the breeding of high photosynthetic efficiency. The results showed that the performance about plant type and average yield of 2012B12 and 2012B33 is relatively good. 2012A17 had the highest net photosynthetic rate (Pn), transpiration rate (E) and stomata conductance(C), 2012A18 took second place, 2012A43 was the lowest. But Intercellar CO2 concentration (InTCO2) has no significant difference among these peanut cultivars. The total number of branches, the number of effective branches, the number of pod were significantly correlated with E and C. The average yield is significantly and positively correlated with Pn, E and C. It is suggested to pay attention to these features in breeding work.%为研究光合作用与花生产量及产量相关农艺性状的关系,为下一步培育高产高光效品种打下基础,对12个不同花生品种(系) 成熟期叶片的光合作用相关指标以及主要农艺性状进行调查, 分析光合作用与各农艺性状的相关性, 结果表明:2012B12与2012B33在株型以及平均单产方面都表现较好. 2012A17的净光合速率(Pn)、蒸腾速率(E)和气孔导度(C)都为最高,2012A18次之,2012A43最低,但在细胞间CO2浓度(InTCO2)方面各品种(系)并无显著差异. 总分枝、有效分枝和荚果数与蒸腾速率和气孔导度呈显著正相关. 花生平均单产也与净光合速率、蒸腾速率和气孔导度呈极显著正相关. 可见,培育高产高光效品种可着重从这几方面进行.
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