东京桐种子萌发的生理生态学研究  

A Study on Physiological Indexes During the Process of Seed Germination of Deutzianthus Tonkihensis

作　　者：曾丹娟[1] 焦继飞 王静[1,3] 张德楠[1,3] 莫凌[1] 黄玉清[1] 

机构地区：[1]广西壮族自治区中国科学院广西植物研究所,广西桂林541006 [2]河南省巩义市第二高级中学,河南巩义451200 [3]广西师范大学,广西桂林541004

出　　处：《种子》2012年第10期1-4,共4页Seed

基　　金：国家自然科学基金(编号:41172313);国家科技支撑计划课题(编号:2012 BAC 16 B 00);广西植物研究所基本业务费项目(编号:桂植业10002);广西科技计划项目(编号:桂科攻1140002-1-3)资助

摘　　要：以东京桐(Deutzianthus tonkienensis)种子为材料,研究测定了种子萌发过程中部分生理指标的动态变化。结果表明:种子萌发期间,脂肪含量先下降后逐渐升高再下降的趋势;脂肪酶活力呈先上升后逐渐下降再上升的趋势;淀粉含量先平稳后下降再上升的趋势;α-淀粉酶活力、可溶性糖含量都表现出先升高再降低;东京桐种子最适宜的萌发温度为30℃,且种子最早萌发。Taking Deutzianthus tonkihensis seed as materials, several physiological indexes were investigated during the process of seed germination. The results showed that the fat content decreased firstly, then increased and decreased again, while the lipase vigor increased firstly, then decreased and increased again. The starch content stabilized firstly, then decreased and increased lastly. The alpha amylase activity and soluble sugar content increased firstly,then decreased. The optimal temperature for the seed germination of D. Tonkihensis and early growth of seedlings was 30 ℃.

关 键 词：东京桐 生理指标 发芽率 种子萌发 

分 类 号：S722.14[农业科学—林木遗传育种]