冬小麦品种小量播种的产量效应试验  

Yield Effects in the Precision Seeding of Small Sowing Amount for Winter Wheat

作　　者：吴东兵[1] 曹广才[1] 徐雨昌[1] 李荣旗[2] 张仲琦 杨万深[1] 全明[2] 

机构地区：[1]中国农业科学院作物育种栽培研究所,北京100081 [2]北京锦绣大地农业股份有限公司,北京100039

出　　处：《植物遗传资源学报》2005年第1期43-47,共5页Journal of Plant Genetic Resources

基　　金：国家自然科学基金资助项目(39760039)北京锦绣大地农业股份有限公司资助项目(200119)

摘　　要：2001-2003年在北京进行了2个年度的冬小麦小量播种秋播试验。2001-2002年,在22.5kg/hm2播量中,参试品种DS1号的最好产量是5589.0kg/hm2。2002-2003年度,在22.5kg/hm2播量处理中,京411、鲁麦21、晋麦73、DS1号的产量分别达到8537.7、7403.7、7353.75和6836.25kg/hm2。试验中,旗叶的净光合速率、蒸腾速率、气孔阻力、CO2传导度和叶肉细胞CO2浓度表明植株的生理功能较旺盛。硝酸还原酶和超氧化物歧化酶活性较高,表明植株代谢活动较强。在产量构成因素中,这些品种的单株穗数较多。The Autumn-sown experiments in the precision seeding of small sowing amount for the winter wheat in two years were conducted during 2001 - 2003 in Beijing. The best yield for the DS 1 came to 5589.0 kg/hm2 at the sowing level of 22.5 kg/hm2 seeds from 2001 to 2002. The yield of Jing 411, Lumai 21, Jinmai 73 and DS 1 came to 8537.7, 7403.7, 7353.75 and 6836.25 kg/hm2, respectively at the sowing level of 22.5kg/hm2 seeds during 2002 - 2003. Rate of net photosynthesis, rate of transpiration, RS, COND and CINT in flag leaves showed that plants had vigorous physiological functions. Higher activities of nitrate reductase and SOD showed that plants had stronger metabolism. The number of spike per plant among yield components in these cultivars was relatively high.

关 键 词：冬小麦品种 效应试验 播种 超氧化物歧化酶活性 2003年度 产量构成因素 2002年 净光合速率 CO2浓度 硝酸还原酶 秋播试验 参试品种 蒸腾速率 气孔阻力 生理功能 叶肉细胞 代谢活动 播量 植株 旗叶 穗数 单株 

分 类 号：S512.11[农业科学—作物学] S828