杨凌地区不同棚龄大棚土壤氮素矿化特征研究  

Effect of Ridge Tillage Planting on Some Physiological Indexes of Spring Wheat in Tibet

作　　者：魏迎春 

机构地区：[1]西藏自治区农业科学研究所,西藏拉萨850032

出　　处：《安徽农业科学》2014年第12期3536-3540,共5页Journal of Anhui Agricultural Sciences

摘　　要：[目的]为了分析垄作栽培对西藏春小麦分蘖、生育期等指标的影响规律。[方法]分别在达孜县章多乡和自治区农科所试验地,以春小麦"山春1号"和"藏春951"为试验材料,开展垄作栽培研究。[结果]垄作栽培改变了春小麦的生理生态条件,促进春小麦叶片功能期的延长,增加了垄作"山春1号"的生育时期;垄作栽培促进了春小麦的总分蘖和有效分蘖数的增长,"藏春951"垄作与平作之间有效分蘖达到0.01水平显著性差异,不同栽培方式的2个春小麦品种的总分蘖间没有达到显著性差异;垄作栽培增加了春小麦次生根数量和长度,不同栽培方式下"藏春951"的根数之间达到0.05显著水平;垄作栽培有效改善了小麦穗部性状,不同栽培方式的"藏春951"小穗数之间t值达到6.48,Pr>|t|=0.000 2<0.01,达到0.01显著性差异。[结论]在春小麦生长发育中垄作栽培方式对提高春小麦分蘖力、改善其穗部性状、增加次生根数量等都具有明显的正效应。[ Objective] The research aimed to analyze the influence of ridge cultivation on Tibetan spring wheat such as tiller and birth peri- od, etc. [ Method ] In Dazi county and experimental field of RIOASOT, spring wheat ＂Shanchun no. 1 ＂and＂ Zangchun no. 951＂ were taken as material to carry out ridge cultivation study. [Result] Ridge cultivation changed physiological ecological conditions of spring wheat, promoted spring wheat leaves function period extend, and increased birth period of ridge ＂Shanehun no. 1 ＂. Ridge cultivation promoted total tiller and effective tiller number of spring wheat. Productive tiller of ＂Zangchun no. 951 ＂ridge and convention reached an explicit sexual difference. To- tal tiller of different cultivation way of two variety of spring wheat had no obvious differences. Ridge cultivation increased the number and the length of spring wheat root. Root number of different cultivation way ＂Zangchun no. 951＂ reached an explicit level. Ridge cultivation effective- ly improved small spike. T value of small spike number of different cultivation way ＂Zangehun no. 951＂ reached 6.48, Pr 〉｜ t ｜ = 0. 000 2 〈 0.01, reached an explicit sexual differences. [ Conclusion] Ridge cultivation in spring wheat growth and development of bed-planting had a significant positive effect on spring wheat tillering ability, their ear characteristics and the increase of the number of secondary roots.

关 键 词：垄作栽培 西藏春小麦 生理影响 

分 类 号：S511[农业科学—作物学] X825[环境科学与工程—环境工程]