不同播量对小麦各生育时期农艺性状及干物质量的影响  

Effects of Different Sowing Rates on Agronomic Traits and Dry Matter Content inWheat under Different Growth Stages

作　　者：孙联合 王素奇 马红珍 许海涛 王文文 李阳奇 白冬 陈杰 赵立尚 朱统泉 SUN Lianhe;WANG Suqi;MA Hongzhen;XU Haitao;WANG Wenwen;LI Yangqi;BAI Dong;CHEN Jie;ZHAO Lishang;ZHU Tongquan(Zhumadian Agricultural Academy of Sciences,Zhumadian 463000,China;Zhumadian Agricultural Science Experiment Station,Zhumadian 463000,China;Pingyu County Agricultural Science Research Institute,Zhumadian 463000,China)

机构地区：[1]驻马店市农业科学院,河南驻马店463000 [2]驻马店市农业科学试验站,河南驻马店463000 [3]平舆县农业科学研究所,河南驻马店463000

出　　处：《种业导刊》2025年第1期52-55,共4页Journal of Seed Industry Guide

基　　金：国家现代农业产业技术体系(CARS-03);河南省科技攻关项目(242102111169);省部共建小麦玉米作物学国家重点实验室开放课题(SKL2023KF07)。

摘　　要：为探讨不同播量对小麦各生育时期的影响,采用大田试验研究了不同播量187.5(B1)、225.0(B2)、262.5 kg/hm^(2)(B3)对小麦各生育时期农艺性状及干物质量的影响。结果表明,小麦各生育时期的单株干物质量、拔节期-成熟期小麦株高和单株叶面积、孕穗期-成熟期小麦的质量增加比均以B2最高,B1居中,B3最低。越冬期小麦株高B3较B1提高1.98 cm,小麦单株叶面积降低15.2 cm^(2),越冬期和拔节期小麦的质量增加比分别降低0.95、0.55 g/cm,小麦穗长和可育小穗数B3较B1和B2显著降低。总之,适宜播量可提高小麦单株叶面积,增加小麦单株干物质量,从而增加质量增加比,提高产量。In order to explore the effects of different seeding rates on the growth stages of wheat,this experiment studied the influence of B1(seeding rate of 187.5 kg/ha),B2(seeding rate of 225.0 kg/ha)and B3(seeding rate of 262.5 kg/ha)on the agronomic traits and dry matter content of each growth stage Agricultural Sciences.The results showed that with the increase of seeding rate,the dry matter content per plant,plant height from jointing stage to mature stage and leaf area per plant of wheat at each growth stage were the highest in B2,followed by B1 and the lowest in B3.B3 increased the height of overwintering wheat plants by 1.98 cm and reduced the leaf area per plant by 15.2 cm^(2)compared to B1.B3 also reduced the weight gain ratio of overwintering and jointing stage wheat by 0.95,0.55 g/cm.B3 significantly reduced wheat spike length and the number of fertile small spikes compared to B1 and B2.In general,an appropriate seeding rate could increase the leaf area per plant and dry matter content per plant,thereby improving the weight increase ratio and production of wheat.

关 键 词：小麦 播量 农艺性状 干物质量 质量增加比 

分 类 号：S512.1[农业科学—作物学]