行距和播量对燕麦产量及相关农艺性状的影响  

Effects of row spacing and seed rate on oats agronomic traits and yield

作　　者：李跃 马承泽 朱楷 王储 刘金龙 贾海霞 孙彦[1] LI Yue;MA Chengze;ZHU Kai;WANG Chu;LIU Jinlong;JIA Haixia;SUN Yan(College of Grassland Science and Technology,China Agricultural University,Beijing 100193;Ningxia Qianye Qing Agricultural Science and Technology Development Company Limited,Ningxia 753400;Inner Mongolia Longcao High-tech Agriculture Company Limited,Ulanqab 012199,China)

机构地区：[1]中国农业大学草业科学与技术学院,北京100193 [2]宁夏千叶青农业科技发展有限公司,宁夏753400 [3]内蒙古隆草高科农业有限公司,乌兰察布012199

出　　处：《草原与草业》2024年第4期15-21,共7页Grassland and Prataculture

基　　金：宁夏重点研发计划项目(2022BDE92070,2022BBF02030)资助;乌兰察布市种业振兴“揭榜挂帅”“饲用燕麦新品种选育及配套生产技术示范推广”项目资助。

摘　　要：燕麦是我国半干旱地区重要的一年生饲草作物。为探究华北地区燕麦种植的适宜行距和播量,研究通过双因素完全随机区组设计,分别设置3个行距水平和3个播量水平,研究不同行距、播量组合对燕麦产量及相关农艺性状的影响。研究结果显示,试验范围内行距和播量对株高的影响以播量为主,行距影响不显著。行距和播量对茎长、茎节数影响不显著。播量增大时,叶片的宽与长都变小。穗长、穗数受播量影响大,受行距影响小。行距和播量对干草产量和种子产量有影响,播量比行距对干草产量和种子产量的影响更大。干草产量和种子产量均以窄行距S1(15 cm)低播量D1(20万粒/hm^(2))最高。相关性分析结果表明,单分蘖干重与干草产量最相关,其次是干鲜比。Oat(Avena sativa L.)is an important annual forage crop in semiarid regions of China.In order to explore the appropriate row spacing and seed rates of oats in North China,3 row spacing levels and 3 seed rates levels were set respectively through a double factors completely random block experiment design to study the effects of different row spacing and seed rates combinations on oats yield and related agricultural traits.The results showed that compared with row spacing,seed rate was the main factor affecting oat plant height,and the effect of row spacing on plant height was not significant.Row spacing and seed rate had no significant effect on stem length and number of stem nodes.The width and length of leaves decreased with the increase of seed rate.Panicle length and spikelet number were greatly affected by seed rate,but less affected by row spacing.Row spacing and seed rate had influence on hay yield and seed yield,and seed rate had greater influence on hay yield and seed yield than row spacing.The hay yield and seed yield were the highest with narrow row spacing S1(15 cm)and low seed rate D1(3,000,000 seeds/hm^(2)).The results of correlation analysis showed that the dry weight per tiller was most related to the hay yield,followed by the ratio of dry to fresh.

关 键 词：燕麦 行距 播量 农艺性状 产量 

分 类 号：S512.6[农业科学—作物学]