几种药剂及组合处理对小冬瓜种子发芽力及壮苗的影响  

Effects of seed treatment with different agents on the germinating capacity and strong seedling in Wax gourd

作　　者：庄华才 李洪波 杜彩娴 唐琪璐 ZHUANG Hua-eai;LI Hong-bo;DU Cai-xian;TANG Qi-lu(Dongguan Banana and Vegetable Institute,Dongguan 523061,China)

机构地区：[1]东莞市香蕉蔬菜研究所,广东东莞523061

出　　处：《广东农业科学》2018年第10期39-44,共6页Guangdong Agricultural Sciences

基　　金：东莞市社会科技发展重点项目(201650720100224)

摘　　要：为提高小冬瓜种子发芽力及培育壮苗,采用不同浓度的KNO_3、CaCl_2、GA_3、6-BA及几种药剂组合处理小冬瓜种子,研究其发芽力及壮苗情况。结果表明,各处理均能不同程度促进小冬瓜种子萌发,提高其发芽势和发芽率。其中,KNO_3 4 g/L、CaCl_2 1 g/L、GA_3 300 mg/L、6-BA 100 mg/L以及6-BA 50mg/L+KNO_3 500 mg/L处理的小冬瓜种子发芽势和发芽率分别比清水对照提高54.66%和21.69%、37.34%和13.20%、40.00%和20.74%、48.00%和16.98%、48.00%和26.40%,综合子叶面积、下胚轴粗和根长等壮苗因子,以6-BA 50 mg/L+KNO_3 500 mg/L处理的促进效果最好。In order to improve the seed germination ability and cultivate strong seedlings of small gourd, the seed of Wax gourd were treated by different concentrations of KNO3, CaCl2, GA3, 6-BA and several combination of medicaments. The results showed that all the treatments can promote seed germination, and improve germination energy and germination percentage. Compared to the control, treatment with KNO3 4 g/L , CaCl2 1 g/L , GA3 300 mg/L, 6-BA 100 mg/L and 6-BA 50 mg/L ＋ KNO3 500 mg/L improve the germination energy by 54.66%, 37.34%, 40.00%, 48.00% and 48.00%, and improve the germination percentage by 21.69%, 13.20%, 20.74%, 16.98% and 26.40%, respectively. Taken strong seedling factors into consideration, including leaf area, hypocotyls length and root length, the treatment of 6-BA 50 mg/L＋KNO3 500 mg/L presented the best results, followed by KNO3 4 g/L treatment.

关 键 词：小冬瓜种子 硝酸钾 氯化钙 赤霉素 6-BA 发芽 壮苗 

分 类 号：S642.3[农业科学—蔬菜学]