磷对不同磷效率大豆品种光合生理和农艺性状的影响  

Effect of Different Phosphorus Level on Photosynthetic Rate and Agronomic Traits Between Soybean Cultivars With Different Phosphorus Efficiency

作　　者：刘婧琦[1] 谢甫绨[1] 敖雪[1] 张惠君[1] 王海英[1] 

机构地区：[1]沈阳农业大学农学院,辽宁沈阳110161

出　　处：《大豆科学》2009年第2期217-220,共4页Soybean Science

基　　金：辽宁省科技厅科技基金资助项目(2006201008);辽宁省教育厅创新团队资助项目(2006T116)

摘　　要：以4个磷高效和2个磷低效大豆品种为试材,探讨了低磷(0kg·hm-2)、中磷(82.5kg.hm-2)和高磷(165kg·hm-2)处理对不同磷效率大豆品种光合生理性状和农艺性状的影响。结果表明:在整个生育时期,在不同磷处理下,磷高效品种的叶绿素含量多高于磷低效品种,且在生育后期(鼓粒期),磷高效品种的叶绿素含量下降较缓慢,仍能保持较高含量。各个生育时期,与低磷处理相比,中磷和高磷处理下供试品种的净光合速率均有所增加,在不同磷处理下,磷高效品种的净光合速率多高于磷低效品种。磷处理对大豆株高、分枝数和主茎节数等植株形态性状影响较小。在低磷处理下,磷高效品种的产量和产量性状优于磷低效品种。Four high phosphorus efficiency soybean cuhivars（ Jindou 33, Dahuangdou, Liaodou 13, Liaodou 16 ） and two low phosphorus efficiency soybean cultivars （Tiefeng 3 ,Jin 8-14）were adoped under three phosphorus pentoxide treatments of 0 kg · hm ^-2 （Low） , 82.5 kg · hm^-2 （ Medium ） , 165 kg · hm^-2 （High） to study the effects of different phosphorus pentoxide levels on photosynlhetic rate and agronomic traits of soyhean cuhivars. The resuhs showed that the ehlorophyll content of soybean euhivars with high phosphorus efficiency was higher than that of soybean cultivars with low phosphorus efficiency in the whole growth season,and decreased more slowly in the late growth season. At different growth stages the photosynthetic rate would be increased by phosphorus application anti the euhivars with high phosphorus effieieney had a higher photosynthetie rate than that of eultivars with low phosphorus efficiency. The phosphorus pentoxide treatments had little effect on plant height,hranch and node. Under low phosphorus level, the yield anti traits of yield eomponent of cultivars with high phosphorus effieieney were better than those of eultivars with low phosphorus efficiency.

关 键 词：大豆 磷 光合生理性状 农艺性状 

分 类 号：S565.1[农业科学—作物学]