承德地区春播芝麻营养生长阶段≥12℃有效积温与主要农艺性状的相关性分析  

Correlation Analysis of ≥12 ℃ Effective Accumulated Temperature in Vegetative Growth Stage and Main Agronomic Characters of Spring Sowing Sesame in Chengde Area

作　　者：桑利民[1] 许利民[2] 赵艳利[2] 郭元章[3] 张学敏[1] 李成璞[1] 桑燕 徐婧[3] 徐桂真[3] 

机构地区：[1]承德市农业科学研究所,河北承德067000 [2]隆化县农牧局,河北隆化068150 [3]河北省农林科学院粮油作物研究所,河北石家庄050035 [4]宽城县农牧局,河北宽城067600

出　　处：《河北农业科学》2016年第3期6-9,共4页Journal of Hebei Agricultural Sciences

基　　金：现代芝麻产业技术体系建设专项(CARS-15-2-01)

摘　　要：研究承德春播芝麻营养生长阶段（5月15日~7月31日）的有效积温与芝麻主要农艺性状的相关性,可以为该区春播芝麻的种植管理及产业化合理布局提供科学依据。2014年和2015年以冀航芝1号、冀航芝2号、冀航芝3号3个芝麻品种为试验材料,研究了承德春播芝麻营养生长阶段≥12℃有效积温对芝麻主要农艺性状的影响,并进行了相关性分析。结果表明：同一芝麻品种,不同年际的株高和一次分枝数存在显著差异,每株蒴果数、千粒重和单株种子产量存在极显著差异;芝麻营养生长阶段≥12℃有效积温与芝麻株高、千粒重和单株种子产量呈极显著的正相关,而株高与千粒重和单株种子产量呈极显著正相关、与主茎始蒴高度呈极显著负相关。芝麻在营养生长阶段受有效积温影响显著,因此,在承德地区选择活动积温条件较优的区域种植并加强春播芝麻中前期栽培管理,对提高承德春播芝麻产量具有重要意义。Study the correlation of effective accumulated temperature in vegetative growth stage and main agronomic characters of spring sowing sesame in Chengde area can provide scientific basis for planting management and rational distribution of industry of spring sowing sesane 1he effects of ≥ 12 ℃ effective accumulated temperature in vegetative growth stage on main agronomic characters were studied and the correlations were analyzed in 2014 and 2015 with the sesame varieties Jihangzhi No.l, Jihangzhi No.2, Jihangzhi No.3 as materials. The results showed that there was significant difference in plant height and number of branches, and there were very significant differences in capsules number, 1 000 grain weight and seed yield per plant of same sesame variety in different years. ≥ 12 ℃ effective accumulated temperature in vegetative growth stage were very significantly positively correlated with plant height, 1 000 grain weight and seed yield per plant, while plant height were very significantly positively correlated with 1 000 grain temperature conditions of the Chengde area, which has spring sowing sesame production. a realistic significance to improve the Chengde

关 键 词：春播芝麻 营养生长阶段 有效积温 农艺性状 相关性分析 

分 类 号：S565.3[农业科学—作物学]