福建春花生覆膜栽培生育特性研究

对福建春生覆膜栽培的产量，产量构成因素，开花习性，光合特性，库源关系及部分性状进行了研究。结果表明，春花生采用覆膜栽培能提高出苗率和单株生产力，增产极显著。同时覆膜花生花量增多，开花提早，花期变短，开花结荚集中，花多集中于前期，有效花率，成果率，饱果率高，果大仁大等特点，与裸地花生相比，覆膜花生的净同化率（NAR）较低，但前期叶面积指数（LAI）大，积累干物质多，以及分配系数大，库／源比大，这些是福建春花生覆膜栽培增产的主要成因。

A Study on the Characteristics of Growth and Development for Spring Peanut with Film Mulching Cultivation in Fujian

The yield, yield components, blossoming habit, photosynthetic characteristics, the relationship between sink and source and other characteristics of spring peanut with film mulching were studied. The results showed that film mulching cultivation resulted in a higher emergence percentage, an earlier, shorter flowering stage with profuse flowers at early phase, shorter periods within which most flowers opened and most pods set, higher percentages of effective flowering, pod setting and mature pods, higher pod weight per plant and larger pods and kernels, as compared with no film mulching. Lower NAR, higher LAI at early stage, more dry matter accumulation and higher partitioning coefficient and sink/source ratio in spring peanut with film mulching were the main reason for high yield of spring peanut with film mulching in Fujian.