不同区域及栽培密度下耐密植芝麻新品种豫黑芝1号产量及产量相关性状变化分析

芝麻是我国重要的特色优质油料作物。提高芝麻单产水平是实现我国粮油安全生产的重要举措。为建立芝麻高产高效栽培模式,本研究以耐密植黑芝麻新品种豫黑芝1号为试验材料,在3个产区(漯河、信阳和三门峡),开展了不同栽培密度(12万株/hm2、15万株/hm2、18万株/hm2、21万株/hm2)下豫黑芝1号产量及产量相关性状变化分析。结果显示,豫黑芝1号在不同产区的生育期差异明显；种植密度对豫黑芝1号的株高、有效果节数、主茎果轴长、单株蒴果数、千粒重和单株产量等性状变化程度不同；对小区产量及单株产量影响显著。在21万株/hm2密度下,豫黑芝1号单产水平最高达到1463.33 kg/hm2(三门峡)。研究为芝麻高产高效生产提供了技术支持。

Variation analysis of yield and yield-related traits of the high- density adaptable sesame new variety Yuheizhi no. 1 under different regions and cultivation densities

Sesame is an important characteristic high quality oil crop in our country. Increasing yield of per unit area of sesame is an important measure for realizing the safe production of grain and oil in our country. In order to establish an high efficient esame cultivation model, a new black sesame variety Yuheizhi no. 1 with high- density adaptable was used as experimental material in 3 production region (Luohe, Xinyang and Sanmenxia).The yield and yield related traits of Yuheizhi no. 1were analyzed under different cultivation densities (120,000 plants /hm2, 150,000 plants /hm2, 180,000 plants /hm2, 210,000 plants /hm2). The results showed that the growth period of Yuheizhi no. 1 was different in different production areas. Cultivation density had different effects on plant height, number of effective capsule nodes, fruit axis length of main stem, number of capsules per plant, 1000-grain weight and yield per plant of Yuheizhi no. 1. Different density had significant effects on yield per plot and yield per plant. Under the density of 210,000 plants /hm2, the highest yield level of Yuheizhi no. 1 was 1463.33kg/hm2 (Sanmenxia). The research provided technical support for high yield and efficient production of sesame.