摘要
选用新冬22号小麦品种,研究了5种不同类型杏树带型下小麦冠层光特性和6m与4m两种带型下小麦的平均产量。结果表明:①宽幅小麦冠层光照强度、光合有效辐射(PAR)、叶面积指数(LAI)优于窄幅小麦(即:6m×4m>6m×3m>4m×2m>4m×1.5m),小麦冠层各光合指标在杏树带中从东到西呈现出由小增大再减小的变化趋势。②小麦的光特性在幼年杏树带中优于在成年杏树带中(即:5年>7年>8年)。③6m和4m宽幅下,近树冠区小麦产量低于远离树冠区小麦产量,宽幅模式小麦产量高于窄幅模式小麦产量,表明光合特性是影响小麦产量的一个重要因子。
The study had been carried out to find out the optical characteristics of wheat under apricot-wheat system with Xindong 22 Variety of wheat as test materials and under five types of apricot-wheat and two kinds of broad terms（6 m and 4 m） intercrop.The optical characteristics of wheat and the average yield of wheat were studied.The result showed that：①The canopy intensity,photosynthetic active radiation （PAR）,leaf area index （LAI） of wide wheat in growing areas is better than narrow （6 m×4 m〉6 m×3m〉4 m×2 m〉4 m×1.5 m）,the graphic trends increased first at first and then decreased.②The optical characteristics of young apricot intercropping is better than the adult apricot intercropping （5 years 〉7 years〉 8 years）;③Under the 6 m and 4 m modes,the wheat production per line with the vertical distance from the apricot change as follows：output of the last crown area is higher than the crown area,the production of wide board mode is higher than the narrow broad mode.The result showed that the optical characteristics is an important factor to wheat production.
出处
《西北农业学报》
CAS
CSCD
北大核心
2010年第1期76-80,共5页
Acta Agriculturae Boreali-occidentalis Sinica
基金
国家科技支持计划项目(2007BAD36BO3-3)
关键词
杏麦间作
小麦
光照强度
光合有效辐射
叶面积指数
Apricot-wheat intercropping
Wheat
Intensity of light
Photosynthetic active radiation
Leaf area index
作者简介
张建雄（1979-），男，甘肃人，在读硕士。专业方向为作物栽培与耕作。E-mail；jxbp1314521@126．com
通讯作者：张保军（1960-），男，陕西户县人，教授，硕士生导师．主要从事作物高效栽培标准化研究。E—mail：zhbjun2566@163．com
