成熟期橄榄型油菜角果抗裂角性试验与分析  

Test and Analysis on the Silique Shatter Resistance of Mature Oilseed Rape(Brassica napus L.)

作　　者：乔金平[1] 李耀明[1] 赵湛[1] 徐立章[1] 

机构地区：[1]江苏大学生物机电工程研究院,江苏镇江212013

出　　处：《农机化研究》2015年第5期204-207,共4页Journal of Agricultural Mechanization Research

基　　金：国家科技支撑计划项目(2010BA01B06);江苏高校优势学科建设工程资助项目(苏财教[2011]8号)

摘　　要：为了获知甘蓝型油菜角果的抗裂角性，采用自行研制的油菜角果抗裂角性碰撞检测装置对秦油7号成熟期油菜角果层的上、中、下3个部位的角果抗裂角性进行了试验研究，并分析了油菜角果大小差异对抗裂角性的影响。试验结果表明，成熟期甘蓝型油菜角果的抗裂角系数随着含水率的下降而减小；当含水率大于20％时，抗裂角系数与其含水率具有线性关系，含水率小于20％时，抗裂角系数显著下降并最终趋于0．16左右；秦油7号油菜角果的抗裂角系数在0．151～0．577之间；油菜角果的大小影响其抗裂角性，同一株油菜上角果尺寸大的抗裂角系数比角果尺寸小的大。In this paper , we make some experiments on the silique shatter resistance from three parts of the oilseed rape （ Brassica napus L .）：top, middle and bottom .These experiments are conducted on the testing device of silique shatter resistance invented by Jiangsu University using the method of improved random impact test .In addition , we also analyse the influence of the oilseed pod ’ s size on the silique shatter resistance .The results show that the silique shattering resist-ance index of mature oilseed rape （ Brassica napus L .） decreases with its moisture content decreasing .When the mois-ture content is larger than 20%, it is nearly linear relationship between the silique shattering resistance index and the moisture content .When the moisture content is less than 20%,the silique shattering resistance index decreases dramatic-ally, finally tending to be around 0.16.The silique shattering resistance index of oilseed rape （Qin You 7） ranges be-tween 0 .11 and 0 .577 .Besides ,the size of the oilseed rape has important effect on the silique shatter resistance .The bigger of the size , the greater of the silique shattering resistance index .

关 键 词：油菜 易裂角性 随机碰撞法 位置 裂角系数 

分 类 号：S121[农业科学—农业基础科学]