多效唑对早春嫁接西瓜幼苗生长和生理指标的影响
Effects of Paclobutrazole on Growth and Physiological Indexes of Grafted Watermelon Seedlings
王晓媛 1杨万邦 2刘声锋 2于蓉 2田梅 2郭松2
作者信息
- 1. 宁夏回族自治区农业技术推广总站,宁夏银川 750006
- 2. 宁夏农林科学院园艺研究所,宁夏银川 750002
- 折叠
摘要
以白籽南瓜为嫁接砧木,分别采用基质喷施、砧木子叶喷施不同浓度多效唑(0、10、20、30、40、50 mg/L)处理,分析不同浓度多效唑及不同喷施方式对早春嫁接西瓜幼苗生长和生理指标的影响.结果表明,一定浓度的多效唑处理可抑制西瓜嫁接苗的徒长,增加茎粗、壮苗指数、根系活力以及抗氧化物酶活性,利于培育健壮种苗.基质喷施多效唑的适宜浓度为30 mg/L,砧木子叶喷施多效唑的适宜浓度为40 mg/L.
Abstract
Using white seed pumpkin as grafting rootstock,different concentrations of paclobutrazol(0,10,20,30,40,50 mg/L)were sprayed on substrate and rootstock cotyledons to analyze the effects of different concentrations of paclobutrazol and spraying methods on the growth and physiological indicators of early spring grafted watermelon seedlings.The results showed that a certain concentration of paclobutrazol treatment could inhibit the elongation of watermelon grafted seedlings,increase stem diameter,seedling index,root activity and antioxidant en-zyme activity,which was beneficial for cultivating healthy seedlings.The optimal concentration of paclobutrazole was 30 mg/L.The optimal concentration of paclobutrazole sprayed on rootstock was 40 mg/L.
关键词
嫁接西瓜/多效唑/幼苗生长/生理指标Key words
Grafted watermelon/Paclobutrazol/Seedling growth/Physiological index引用本文复制引用
基金项目
宁夏回族自治区重点研发计划项目(2018BBF02019)
宁夏回族自治区农业高质量发展和生态保护科技创新示范项目(NGSB-2021-7-03)
宁夏回族自治区自然科学基金(2018AAC03195)
国家西甜瓜产业技术体系专项(CARS-25)
出版年
2023
国家科技期刊平台
NSTL
维普
万方数据