油菜素内酯对黄豆种子萌发及下胚轴和胚根生长的影响  

Effects on the Seed Germination and Hypocotyl and Radicle Growth of Soybean by Brassinolide Treatment

作　　者：程彦伟[1] 柳家婷 韩建明[1] 杨亚会[1] 

机构地区：[1]洛阳师范学院生命科学系,河南洛阳471022

出　　处：《洛阳师范学院学报》2013年第11期57-59,共3页Journal of Luoyang Normal University

基　　金：河南省科技攻关计划项目(102102110155);洛阳师范学院应用科学与技术研究基金项目(10000993);河南省青年骨干教师资助项目(2011ggjs-154);NSFC-河南人才培养联合基金(U1204307)

摘　　要：用5个不同浓度的油菜素内酯溶液浸种处理黄豆种子,放在2种不同的温度下培养,观测其对种子发芽、下胚轴和胚根生长的影响.结果表明,用不同浓度的天然油菜素内酯处理对黄豆种子的发芽率和下胚轴生长均有明显的促进作用.在15℃和27℃下,0.05mg/L的油菜素内酯处理的黄豆种子发芽率最高,都达到了93.3%,分别比对照组增加了19.8%和14.8%;27℃下0.05mg/L的油菜素内酯处理的黄豆种子下胚轴伸长最长,达13.6cm;15℃和27℃下各油菜素内酯处理的黄豆种子胚根伸长均低于对照组,表明油菜素内酯对胚根的生长有抑制作用.The effects of different concentrations natural brassinolide （0.025, 0.05, 0.1, 0.2, 0.3 mg/L） and two different temperatures （ 15℃ and 27℃） on the growth of soybean were studied in this paper. The results show that, it has obvious promoting effect on soybean germination rate and the growth of hypocotyl with different concentrations of natural brassinolide treatment. At 15℃ and 27℃, the germination rate was the highest （93.3%） with the treatment of 0.05 mg/L natural brassinolide, compared with the control group, the percentage increase come to 19.8% and 14.8% respectively. The hypocotyl of soybean at 27℃ reached to the maximum, 13.6 cm, with the treatment of 0.05 mg/L natural brassinolide. At 15℃ and 27℃, the radicle elongation of treatment group was shorter than the control group, which showed that the brassinolide had an inhibitory effect on the growth of radi- cle.

关 键 词：油菜素内酯 黄豆种子 萌发 生长 

分 类 号：Q945[生物学—植物学]