摘要
大田试验研究了荚播及化学调节(TS303、PDJ和它们的混合物浸种和花针期喷施)对花生某些生理特性和产量性状的影响.结果表明:荚播花生花针期生理活性强,但极显著减少花生的成苗率和实收株数而导致减产.TS303及较低浓度的PDJ都能促进花生幼苗生长,增加叶面积指数,提高净光合速率和根系活力,而较高浓度的PDJ促进同化物质的转移,二者有加成和互补效应,单独和混合使用都能显著增加花生产量.
Effects of pod-sowing and chemical regulation (soaking pods or seeds and spraying at flowering and pegging stage with TS303, PDJ and their mixture) on peanut physiological characteristics and yield were investigated in field. Pod-sowing enhanced physiological activity of peanut at flowering and pegging stage, but significantly decreased the plant number per area and yield. Both TS303 and low concentration of PDJ promoted seedling growth, increased the root activity and leaf area index as well as net photosynthetic rate. High concentration of PDJ promoted carbohydrate transfer from leaves. TS303 and PDJ had additive and compensable effect, increased peanut yield not only alone but also as a mixture.
出处
《华南农业大学学报》
CAS
CSCD
北大核心
2003年第1期86-88,共3页
Journal of South China Agricultural University
