三种龙葵种子萌发特性的研究  

Study on Seed Germination Characteristics of Three Nightshade

作　　者：张海洋[1] 徐秀芳[1] 

机构地区：[1]湖州师范学院生命科学学院,浙江湖州313000

出　　处：《北方园艺》2011年第21期20-23,共4页Northern Horticulture

摘　　要：以少花龙葵、黄果龙葵、龙葵为试材,研究了贮藏时间、温度、光照条件和不同GA3浓度对3种龙葵种子萌发特性的影响,为龙葵的人工栽培和种子保存提供依据。结果表明:3种龙葵种子都有随着贮藏年限增加生活力逐年下降的趋势,黄果龙葵种子寿命1～2a,龙葵种子寿命2～3a,少花龙葵种子寿命3～4a;少花龙葵和龙葵种子萌发最适宜的温度是30℃,黄果龙葵种子萌发最适宜的温度是25℃;3种龙葵种子萌发都有光敏特性,黑暗明显抑制种子萌发,黑暗的抑制程度少花龙葵>黄果龙葵>龙葵;GA3对少花龙葵种子萌发有明显的促进作用,浓度200mg/L、处理3h效果最理想。Taking Solarium nigrum,S.photeinocarpum and S.nigrum var.flavovirens as materials,the germination characteristics of nightshade under years of seed,temperature and light condition,different density of GA3 were studied,in order to provide scientific evidences for cultivation and to preserve seeds.The results showed that the activity of seeds germination was decreased with the increasing of storage.Seed activity of S.nigrum var.flavovirens was 1~2 years,S.nigrum was 2~3 years,S.photeinocarpum was 3~4 years,the best germination temperature was 30℃ of S.nigrum and S.photeinocarpum,and was 25℃ of S.nigrum var.flavovirens.Seed of Nightshade had photosensitive characteristics,germination was restrained under dark condition,the restrain degree was S.photeinocarpumS.nigrum var.flavovirensS.nigrum.GA3 could promote seed germinationos of S.photeinocarpum,the best treatment was 200 mg/L under 3 h.

关 键 词：龙葵 种子 贮藏年限 萌发特性 赤霉素 

分 类 号：S641.904.1[农业科学—蔬菜学]