干热处理对油菜种子发芽及幼苗生长的影响  

Effect of dry heat treatment on seed germination and seedling growth of young Chinese cabbage

作　　者：刘永胜[1] 黄启梅[1] 云兴福[1] 

机构地区：[1]内蒙古农业大学农学院,内蒙古呼和浩特010019

出　　处：《北方农业学报》2016年第1期56-60,64,共6页Journal of Northern Agriculture

摘　　要：以日本F1华冠青梗油菜种子为材料,研究不同干热处理对油菜种子发芽及幼苗生长的影响。结果表明:不同的处理温度及时间对油菜种子发芽率有显著影响(60℃4 h除外),与对照相比,差异达到显著水平;出苗率与对照相比,差异达到极显著水平。50℃、4 h干热处理幼苗的植株高度比对照增加0.39%,叶片数比对照增加11.11%,最大叶面积比对照增加2.2%,根部鲜质量比对照增加16.32%。50℃、12 h处理根部鲜质量比对照组增加17.16%;地上部鲜质量比对照组低。50℃处理后油菜幼苗的植株高度、叶片数、最大叶面积、地上部分鲜质量、地下部分鲜质量都处于较高水平。因此,50℃处理是油菜种子较为理想的干热处理温度。The seeds of rape variety green petiole F1 treated with different temperature and duration. The results indicated that the difference of treatment temperature and time on the germination rate of rape seeds was significantly affected by the addition of 60 ℃4 h.Seedling emergence rate and the ratio of the film were highly significant level.50 ℃ ,4 h after the hot processing plant height of seedling increased 0.39% than the control group. Leaves number increased by 11.11% than the control. The maximum leaf area and root fresh weight compared with increased 2.2% and 16.32% respectively.50 ℃, 12 h after processing the root fresh weight increased by 17.16% than the control group. After processing of aboveground fresh weight was lower than control group,but 60 ℃, 12 h treatment of aboveground fresh weight of the highest. The plant height, number of leaves, maximum leaf area,fresh weight of both aboveground part and underground part of plants were significantly increased with treatment 50 ℃. Therefore 50 ℃ was the best treatment for rapeseed treatment.

关 键 词：油菜 干热处理 发芽 幼苗生长 

分 类 号：S565[农业科学—作物学]