稻茬小麦氮高效品种产量构成和群体质量特征

丁永刚,李福建,王亚华,汤小庆,杜同庆,朱敏,李春燕,朱新开,丁锦峰,郭文善

Characteristics of yield components and population quality in high-nitrogen- utilization wheat cultivars

Yong-Gang DING,Fu-Jian LI,Ya-Hua WANG,Xiao-Qing TANG,Tong-Qing DU,Min ZHU,Chun-Yan LI,Xin-Kai ZHU,Jin-Feng DING,Wen-Shan GUO

表5 不同氮效率品种类型间干物质转运量、花后干物质积累量和收获指数的差异

Table 5 Differences in dry matter remobilization, post-anthesis dry matter accumulation and harvest index among different NUR groups

年度 Year 地点 Site 品种类型 Variety type 干物质转运量 Dry matter remobilization (kg hm-2 ) 花后干物质积累量 Post-anthesis dry matter accumulation (kg hm-2 ) 收获指数 Harvest index 2016-2017 扬州 Yangzhou 氮高效 NUR-H 1448±299 a 6038±539 a 0.35±0.01 a 氮中效 NUR-M 1660±220 a 4889±554 b 0.36±0.02 a 氮低效 NUR-L 1369±366 a 4478±849 b 0.35±0.01 a 睢宁 Suining 氮高效 NUR-H 3147±213 a 5916±269 a 0.42±0.02 a 氮中效 NUR-M 2743±539 a 5821±528 a 0.44±0.02 a 氮低效 NUR-L 2431±490 a 4778±496 b 0.42±0.02 a 2017-2018 扬州 Yangzhou 氮高效 NUR-H 2010±251 a 4126±155 a 0.37±0.01 a 氮中效 NUR-M 1719±360 a 3701±348 ab 0.36±0.01 a 氮低效 NUR-L 1604±437 a 3459±386 b 0.37±0.02 a 睢宁 Suining 氮高效 NUR-H 1768±290 a 4558±391 a 0.38±0.01 a 氮中效 NUR-M 1464±370 a 4243±417 ab 0.39±0.01 a 氮低效 NUR-L 1260±184 a 3923±379 b 0.39±0.01 a