不同预处理对喀西茄种子萌发及S-诱抗素对幼苗生长的影响  

Effects of Different Pretreatments on Seed Germination and S-attractants onSeedling Growth of Solanum aculeatissimum

作　　者：徐剑 杨帆[1,2] 孙正海 XU Jian;YANG Fan;SUN Zhenghai(Yunnan International Joint R&D Center for Intergrated Utilization of Ornamental Grass/International Technological Cooperation Base of High Effective Economic Forestry Cultivating of Yunnan Province/South and Southeast Asia Joint R&D Center of Economic Forest Full Industry Chain of Yunnan Province/College of Landscape and Horticulture of Southwest ForestryUniversity,Kunming 650224,China;Yunnan Provincial Academy of Science and Technology,Kunming 650228,China)

机构地区：[1]云南省观赏草集成利用国际联合研发中心/云南省高效经济林培育示范型国际科技合作基地/云南省面向南亚东南亚经济林全产业链联合研发中心/西南林业大学园林园艺学院,昆明650224 [2]云南省科学技术院,昆明650228

出　　处：《种子》2023年第9期93-97,104,共6页Seed

基　　金：云南省重点研发计划(202202AE090012-04);云南省国际合作专项(2019IB011)。

摘　　要：本试验以成熟的喀西茄果实为材料,探究不同预处理对喀西茄种子萌发及不同浓度S-诱抗素对喀西茄幼苗生长的影响,测定发芽率、发芽指数、POD活性、CAT活性及苗高、茎粗等指标。结果表明,在种子萌发预处理试验中,干湿处理2次(A2)能够显著提高喀西茄种子的萌发力和活力,提高种子萌发过程中各项形态指标及生理指标;经浓度为2.0 mL/L的S-诱抗素(S200)处理后的喀西茄幼苗,在苗高、茎粗、主根长、主根粗、POD活性、CAT活性和根系活力均达到最大值。研究表明,该处理方法可有效促进喀西茄幼苗的生长发育。In this experiment,the mature fruits of Solanum aculeatissimum were used as materials to explored the effects of different pretreatments on seed germination and the effects of different concentrations of S-attractants on S.aculeatissimum seedlings.The germination rate,germination index,POD activity,CAT activity,seedling height,stem diameter and other indicators were measured.The results showed that in the seed germination pretreatment experiment,wet and dry treatment for two times(A2)could significantly improved the seed germination ability and vitality,and improved the morphological and physiological indexes during seed germination.After the treatment with 2.0 ml/L S-inducer(S200),the seedling height,stem diameter,taproot length,taproot diameter,POD activity,CAT activity and root activity of S.aculeatissimum reached the maximum value.Study showed that this treatment method could effectively promoted the growth and development of S.aculeatissimum seedlings.

关 键 词：喀西茄 预处理 种子萌发 幼苗生长 

分 类 号：S641.1[农业科学—蔬菜学]