4种药剂浸种对辣椒种子萌发的影响  

Effects of 4 Kinds of Nitrate on Pepper Seed Germination

作　　者：雷梦梦 高杰[1] 吴玉霞[1] 吴慧[1] 

机构地区：[1]新疆农业大学林学与园艺学院,乌鲁木齐830052

出　　处：《新疆农业科学》2014年第8期1482-1487,共6页Xinjiang Agricultural Sciences

基　　金：新疆维吾尔自治区重大专项"新疆设施农业产业高效持续发展关键技术研究与示范"子课题"设施园艺作物提质增效生产关键技术研究与示范"(201130104-2)

摘　　要：【目的】选出能有效提高辣椒种子发芽势、发芽率、活力指数以及根系活力的药剂,为集中化育苗提供理论依据和实践指导。【方法】以辣椒种子为材料,用不同浓度梯度的KNO3、NaNO3、NH4NO3、Ca(NO3)2药剂处理辣椒种子,处理时间为6和9 h,观察和计数种子发芽势、发芽率及活力指数,电导仪测定种子浸出液的电导率,TTC染色法测定种子根系活力。【结果】以浓度为0.3%的KNO3处理6 h、浓度为0.1%的KNO3处理9h、浓度为1.3%的NaNO3处理6 h、浓度为0.4%的NaNO3处理9 h、浓度为0.3%的NH4NO3两个时间处理和浓度为0.7%的Ca(NO3)2两个时间处理均有较好的处理效果。【结论】NH4NO3药剂能有效促进种子萌芽,提高种子的活力,与6 h相比,9 h为药剂浸种最适时间。【Objective】This study aims to select potions which can effectively increase the pepper seed germination potential,germination rate and vigor index and root activity by using different concentration gradient of KNO3,NaNO3,NH4NO3,Ca（NO3）2agents to deal with hot pepper seeds in order to provide theoretical basis and practical guidance,and the processing time is 6 h and 9 h.【Method】Pepper seeds were taken as the testing materials,observation and counting seed germination potential,germination rate and vigor index were observed and counted,conductivity meter was developed for the determination of seed leaching liquid conductivity,and TTC staining method was used to determine seed root activity.【Result】At a concentration of0. 3%,KNO3 processing time was 6 h,at a concentration of 0. 1% of KNO3,processing time was 9 h,at a concentration of 1. 3% NaNO3,the processing time was 6 h,at a concentration of 0.4% of NaNO3,the processing time was 9 h,and the concentration of 0. 3% NH4NO3,and the concentration of 0. 7% of Ca（NO3）2,both of the two time treatments had better effect.【Conclusion】NH4NO3medicament can effectively promote seed germination,enhance the vitality of seeds. Compared with 6 h treatment,9 h soaking time was the optimal.

关 键 词：辣椒 药剂浸种 发芽能力 根系活力 

分 类 号：S48[农业科学—农药学]