矮壮素浸种对木薯生长与产量的影响  

Effect on the Growth and Yield by Soaking Cassava Cutting in the Solution of Chlorocholine Chloride

作　　者：黄洁[1] 李天[1,2] 魏云霞 王娟[1,2] HUANG Jie;LI Tian;WEI Yunxia;WANG Juan(Tropical Crops Genetic Resources Institute,Chinese Academy of Tropical Agricultural Sciences/Key Laboratory of Protection and Utilization of Cassava Germplasm Resources,Ministry of Agriculture and Rural Affairs,Haikou 571737,Hainan;College of Tropical Agriculture and Forestry,Hainan University,Haikou 570228,Hainan)

机构地区：[1]中国热带农业科学院热带作物品种资源研究所/农业农村部木薯种质资源保护与利用重点实验室,海南海口571737 [2]海南大学热带农林学院,海南海口570228

出　　处：《中国热带农业》2024年第4期32-39,共8页China Tropical Agriculture

基　　金：财政部和农业农村部国家木薯产业技术体系木薯栽培生理岗位科学家(CARS-11-HNHJ);中国热带农业科学院国家热带农业科学中心科技创新团队(CATASCXTD202302)。

摘　　要：为优化木薯的矮壮素浸种增产技术,研究不同浓度的矮壮素溶液浸种6h和12h对木薯农艺性状、薯块产量与品质的影响。结果表明,与不浸种比较,200.00mg/L、300.00mg/L矮壮素浸种6h和100.00mg/L矮壮素浸种12h可显著矮化株高,0.00~100.00mg/L矮壮素浸种6h可显著增长薯长,300.00mg/L矮壮素浸种6h和200.00mg/L矮壮素浸种12h可显著增粗薯径;200.00mg/L矮壮素浸种6h可显著提高薯干可溶性糖含量,200.0mg/L、300.00mg/L矮壮素浸种6h可显著提高薯干淀粉含量。最优处理是300.00mg/L矮壮素浸种6h,可显著提高鲜薯产量41.7%、淀粉产量64.6%、收获指数10.5%;次优处理是100.00~200.00mg/L矮壮素浸种6h、12h,可显著增产鲜薯和淀粉并显著或明显提高收获指数。综合分析,推荐100.00~300.00mg/L矮壮素溶液浸种6h作为鲜薯和淀粉增产技术。In order to optimize the technology of increasing yield by soaking cassava cutting(SCC)in the solution of Chlorocholine Chloride(CC),the effects of the SCC for 6 h and 12 h by different concentrations of CC on the cassava agronomic traits,yield and quality of storage root(SR) were investigated.The results showed that,in comparison with non-soaking,200.00 mg/L,300.00 mg/L SCC for 6 h and 100.00 mg/L SCC for 12 h significantly dwarfed the plant height,0.00~100.00 mg/L SCC for 6 h significantly increased the length of SR,and 300.00 mg/L SCC for 6 h and 200.00 mg/L SCC for 12 h significantly increased the diameter of SR,200.00 mg/L SCC for 6 h significantly increased the soluble sugar content of dried SR,and 200.00 mg/L and 300.00 mg/L SCC for 6 h significantly increased the starch content of dried SR.The best treatment was 300.00 mg/L SCC for 6 h,and it significantly increased the fresh yield of SR by 41.7%,the starch yield by 64.6% and harvest index by 10.5%.The sub-optimum treatments were 100.00~200.00 mg/L SCC for 6 h and 12 h,which significantly increased the fresh yield of SR and starch yield,and also increased the harvest index.Based on comprehensive analysis,the technology of 100.00~300.00 mg/L SCC for 6 h was recommended to increase the fresh yield of SR and starch yield.

关 键 词：木薯 浸种 矮壮素 产量 

分 类 号：S533[农业科学—作物学]