生根粉浸种对木薯生长与产量的影响  

Effect of Soaking Seeds with Rooting Powder on the Growth and Yield of Cassava

作　　者：黄洁[1] 李天[1,2] 王娟 魏云霞 HUANG Jie;LI Tian;WANG Juan;WEI Yun-xia(Tropical Crops Genetic Resources Institute,CATAS/Keys Laboratory of Protection and Utilization of Cassava Germplasm Resources,Ministry of Agriculture and Rural Affairs,Haikou,Hainan 571737,China;College of Tropical Agriculture and Forestry,Hainan University,Haikou,Hainan 570228,China)

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：《福建农业科技》2024年第5期60-64,共5页Fujian Agricultural Science and Technology

基　　金：国家现代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：为探索木薯的抗逆增产技术,设置5个生根粉浸种浓度(0、10.0、20.0、40.0、60.0 mg·L^(-1))、2个浸种时间(6、12 h)、以不浸种处理为对照(CK),研究其对木薯农艺性状、薯块产量与品质的影响。结果表明:与不浸种比较,20.0、60.0 mg·L^(-1)浸种6 h和20.0~60.0 mg·L^(-1)浸种12 h显著增粗茎径,20.0 mg·L^(-1)浸种6 h显著提高薯长和薯径,0、10.0、60.0 mg·L^(-1)浸种12 h显著增长薯长,0、40.0、60.0 mg·L^(-1)浸种6 h及40.0、60.0 mg·L^(-1)浸种12 h显著增粗薯径,20.0 mg·L^(-1)浸种6 h鲜薯产量显著增加42.3%、淀粉产量显著提高49.9%、收获指数显著提高10.5%。综上,推荐20.0 mg·L^(-1)生根粉溶液浸泡木薯种茎6 h的增产技术。In order to optimize the technology of increasing stress resistance and yield of cassava,five concentrations of rooting powder solution(0,10.0,20.0,40.0,60.0 mg·L^(-1))for soaking seeds and two soaking time(6,12 h)were set up by taking the non-soaking treatment as the control group(CK).Then,their effects on the agronomic traits,storage root yield and quality of cassava were studied.The results showed that:compared with no seed soaking,after soaking in the rooting powder solution with the concentration of 20.0,60.0 mg·L^(-1)for 6 h and soaking in the solution with the concentration of 20.0-60.0 mg·L^(-1)for 12 h,the stem diameter of cassava was significantly increased.After soaking in the rooting powder solution with the concentration of 20.0 mg·L^(-1)for 6 h,the length and diameter of storage root was significantly increased.After soaking in the rooting powder solution with the concentration of 0,10.0,60.0 mg·L^(-1)for 12 h,the length of storage root was significantly increased.After soaking in the rooting powder solution with the concentration of 0,40.0,60.0 mg·L^(-1)for 6 h and soaking in the solution with the concentration of 40.0,60.0 mg·L^(-1)for 12 h,the diameter of storage root was significantly increased.After soaking in the rooting powder solution with the concentration of 20.0 mg·L^(-1)for 6 h,the fresh storage root yield was significantly increased by 42.3%,the starch yield was significantly increased by 49.9%,and the harvest index was significantly increased by 10.5%.In conclusion,soaking the seed stem of cassava with 20.0 mg·L^(-1)rooting powder solution for 6 h was recommended as the yieldincreasing technology.

关 键 词：木薯 浸种 生根粉 产量 

分 类 号：S533[农业科学—作物学]