播种量对西农585小麦生长特性及产量性状的影响  

Effect of Seeding Rate on Growth Characteristics and Yield Traits of Wheat Xinong 585

作　　者：刘佳熠 苏丹 李晓荣 龙小惠 杨美悦 宋璐[1] 马晓红 刘喆 常辉[1] 于艳梅[1] LIU Jiayi;SU Dan;LI Xiaorong;LONG Xiaohui;YANG Meiyue;SONG Lu;MA Xiaohong;LIU Zhe;CHANG Hui;YU Yanmei(Xi′an Agricultural Technology Extension Center,Xi′an Shaanxi 710061;Lintong District Agricultural Technology Extension Service Center in Xi′an City,Xi′an Shaanxi 710600;Shaanxi Agricultural Technology Extension Station,Xi′an Shaanxi 710003)

机构地区：[1]西安市农业技术推广中心,陕西西安710061 [2]西安市临潼区农技推广服务中心,陕西西安710600 [3]陕西省农业技术推广总站,陕西西安710003

出　　处：《现代农业科技》2023年第17期1-4,7,共5页Modern Agricultural Science and Technology

摘　　要：为研究播种量对优质强筋小麦西农585生长特性及产量性状的影响,在固定播期的基础上,进行了不同播种量(分别为86、129、172、215、258 kg/hm^(2))试验。结果表明:播种量对小麦越冬期的单株分蘖、次生根数以及拔节期的叶龄、次生根数影响显著;对不同生育时期群体影响显著,且群体基本苗数、冬前最大茎蘖数、春季最大茎蘖数随着播种量的增加而增加;对株高、穗下第一节间长、基部第一节间长、基部第二节间长的影响不显著,对穗长影响显著;对产量、成穗数和千粒重影响明显,且产量和成穗数随着播种量的增加表现出先增加后减少的趋势,当播种量为172 kg/hm^(2)时,产量最高,成穗数最多。由此表明,播种量对西农585小麦生长特性及产量性状的影响较大,西农585在关中灌区生态条件下适宜播种量为172 kg/hm^(2)左右。In order to study the effect of seeding rate on the growth characteristics and yield traits of high-quality and strong gluten wheat Xinong 585,on the basis of fixed sowing date,experiments were conducted on different seeding rates(86,129,172,215,258 kg/hm^(2)).The results showed that the seeding rate had a significant effect on the number of tillers and secondary roots per plant in overwintering period,and the leaf age and secondary roots in jointing period;it had a significant effect on the population at different growth stages,and the basic number of seedlings,the maximum number of tillers before winter,and the maximum number of tillers in spring increased with the increase of seeding rate;it had no significant effect on plant height,length of the first internode under ear,length of the first internode at the base,length of the second internode at the base,but had a significant effect on ear length;it had obvious effect on yield,the number of ears and 1000-grain weight,and the yield and the number of ears increased first and then decreased with the increase of seeding rate.When the seeding rate was 172 kg/hm^(2),the yield and the number of ears were the highest.Therefore,the seeding rate has a greater effect on the growth characteristics and yield traits of Xinong 585.The suitable seeding rate of Xinong 585 is about 172 kg/hm^(2)under the ecological conditions of Guanzhong irrigation area.

关 键 词：小麦 西农585 播种量 产量 农艺性状 

分 类 号：S512.1[农业科学—作物学]