种植密度对荞麦生长及结实特性的影响  

The Effect of Planting Density on Growing and Seed Production Characteristics of Buckwheat

作　　者：吴冰冰[1] 王春龙[2] 郑永照[3] 李娟芳[1] 谢志明 牟金明[1] 

机构地区：[1]吉林农业大学农学院,长春130118 [2]吉林省白城市农业科学院,吉林白城137000 [3]吉林省通化市农业科学研究院,吉林梅河口134007 [4]白城市师范学院生物系,吉林白城137000

出　　处：《吉林农业科学》2015年第1期29-31,36,共4页Journal of　Jilin Agricultural Sciences

基　　金：吉林省科技发展计划项目(20050816)

摘　　要：采用大田随机区组试验设计,以荞麦品种赤峰1号为试材,研究了不同密度水平对植株生长及结实特性的影响。结果表明:荞麦的百粒重和平均结实率随种植密度增大呈递增趋势。荞麦的落粒率随着种植密度增大呈先减后增的趋势。相关分析表明,荞麦的落粒率与总粒重、有效株数呈显著负相关关系。荞麦的结实率与荞麦各农艺指标、落粒率均没有显著的相关性。从降低落粒率角度看,荞麦的适宜密度在30万株/hm2。The experiment was conducted with the design of random-blocks experiment and‘Chifeng 1＇usedas materials to study the effect of plant density on growth and seed production characteristics of buckwheat. The re-sults showed that the 100-grain weight and average seed rate of buckwheat increased with the planting density. Theshattering rate of buckwheat was reduced at first and then increased as plant density increased. The correlation anal-ysis indicated that total grain weight and effective plant number was significantly negatively correlated with shatter-ing rate. Agronomic index and grain rate were not significant correlation with seed setting rate. Therefore in order toreduce shattering rate, the suitable density of buckwheat should be in 3×10^5 plants/hm^2.

关 键 词：荞麦 种植密度 结实特性 落粒性 

分 类 号：S517[农业科学—作物学]