地下滴灌不同灌水量对苜蓿种子产量构成因子的影响  

Effect of Different Water Volumo of Subsurface Drip Irrigation on the Yield and Components of Alfalfa Seeds

作　　者：陈金炜[1] 李卫军[1] 师东[2] 

机构地区：[1]新疆农业大学草业与环境学院/新疆草地资源与生态重点实验室,乌鲁木齐830052 [2]新疆大学生命科学与技术学院,乌鲁木齐830046

出　　处：《新疆农业科学》2011年第1期177-181,共5页Xinjiang Agricultural Sciences

基　　金：苜蓿原种基地扩建与高产技术体系研究;新疆维吾尔自治区发改委项目;农业部国家牧草产业技术体系岗位专家项目

摘　　要：【目的】研究地下滴灌不同灌水量对新牧1号杂花苜蓿种子产量及其构成因素的影响,为苜蓿种子生产提供理论依据和生产指导。【方法】在60 cm等行距苜蓿种子实验地中,每行铺设地下滴灌带,单次灌水量从150到900 m3/hm2设置6个不同的处理。【结果】灌水处理不同,单株花序数、每花序小花数、每荚果种子数呈显著差异。当灌水总量达3 600 m3/hm2,单次灌水600 m3/hm2时,产量最高,为832.51 kg/hm2。【结论】在苜蓿的现蕾期至结荚期增加灌水次数,能提高种子产量。地下滴灌应用在苜蓿种子生产中能起到节水增产的效果。[ Objective] Research of the influence of different Water Volume of subsurface drip irrigation on seed yield components and seeds yield of Medicago varia Martin. cv. Xinmu No. 1 was designed to provide theoretical references and the instruction for the production of the seeds. [ Method ] The underground drip irrigation belt every rows were laid and the single irrigation water was from 150 m^3/ hm^2 to 900m^3/ hm^2, 6 different treatments were installed in the alfalfa experimental site where there was a 60 cm space betweer two rows. [ Result ] Different irrigation treatments have remarkable difference in inflorescence per plant, pod per inflorescence and seed number per inflorescence of alfalfa. When total irrigation amount reached 3 600 m^3/hm^2, and the single irrigation reached 600 m^3/hm^2, the highest yield of 832.51 kg/hm^2 can be obtained. [ Conclusion] From alfalfa＇s budding- initial flowering stage to pod stage, increasing irrigation frequency can raise seed yield. Using the subsurface drip irrigation in the production of alfalfa seeds, it can help to save water and increase the yield.

关 键 词：苜蓿 地下滴灌 种子产量 构成因子 

分 类 号：S551.7[农业科学—作物学] S507.1