种植密度对籽瓜生长发育及产量的影响

目的]筛选出籽瓜品种SWBB - 01与全程化机械作业相配套的最佳密度.方法]采用每穴单株、单双株及双株间隔的密度方式,密度分别为2 778、3 704和5 556株/667 m2,进行三个密度水平三次重复的小区试验.结果]在出苗后42 d(盛花期)叶面积指数均达到最大值,其中高密度(5 556株/667 m2)的叶面积指数上升速度快.进入膨大期后各处理叶面积指数逐渐下降,而高密度(5 556株/667 m2)的叶面积指数是下降速度最快的.干物质积累以3 704株/667 m2处理取得最大单位面积干物质积累量.产量随密度的增大而增加,但是密度超过3 704株/667 m2后,产量则表现出下降的趋势.结论]在新疆籽瓜机械化播种地区SWBB - 01的适宜栽培密度为3 704株/667 m,此密度下可以取得较高产量和品质.

Effect of Planting Density on the Growth,Yield of Seed-watermelon-SWBB-01

【Objective】In order to select the watermelon varieties SWBB-01 with full mechanical operation of matching the best density.【Method】The test used one plant for one hole,single or double lines and the mean densities are respectively 2 778,3 704,5 556 plants/667 m2,repeated three times for three levels of cell density experiment.【Result】42 days after emergence(flowering) foliage index reaches its maximum,in which high-density(5,556 plants/667 m2) of the leaf area index increased the highest speed.Dry matter accumulation in 3 704 plants/667 m2 processing can achieve maximum dry matter accumulation per unit area.Yield increased with increasing density,but density of more than 3 704 plants/667 m2 showed a decline in production.【Conclusion】The suitable planting density of SWBB-01 for mechanized planting watermelon in the Xinjiang region is 3 704 plants/667 m2.This density can help us to get a higher yield and quality.