Effect of Intra- and inter-row mixing of sorghum with two varieties of cowpea on host crop yield in a Striga hermonthica infested field
Effect of Intra- and inter-row mixing of sorghum with two varieties of cowpea on host crop yield in a Striga hermonthica infested field
复制标题
高粱与两种豇豆的行内和行间混合对独脚金侵染田地寄主作物产量的影响
DOI：
10.5897/ajar.9000210
复制
发表时间：
2006
影响因子：
--
通讯作者：
A. Emechebe
中科院分区：
文献类型：
--
作者：
B. Aliyu;A. Emechebe
2002/2003 年种植季节，尼日利亚卡诺国际热带农业研究所 (IITA) 研究农场进行了一项试验，旨在评估高粱与两种豇豆品种行内和行间混合对独脚金侵染田地中寄主作物产量的影响。仅使用高粱时，每株高粱植株的独脚金数量显着最高（P≤0.05），但产量也最低（2370 公斤/公顷）。 高粱和密植豇豆品种IT96D-452-1的行内混合获得了显着（P≤0.05）较高的产量（3709公斤/公顷）。 这种处理方法还使得每块净地块和每株植物的独脚金数量最少，这可能是由于豇豆陷阱作物在刺激独脚金种子的自杀性发芽方面的有效性，否则独脚金种子会攻击并降低寄主植物的生产力。这也可能归功于种植方法的有效性，高粱：豇豆植物的比例为1:13，提高了系统的生产力，同时抑制了独脚金种子的发芽。
关键词: 高粱, 产量, 行内, 行间, 豇豆, 混作
A trial was conducted in the International Institute of Tropical Agriculture (IITA) research farm in Kano, Nigeria during the 2002/2003 cropping season to evaluate the effect of intrarow and interrow mixing of sorghum with two varieties of cowpea on host crop yield in a Striga hermonthica infested field. Significantly (P≤0.05) highest number of Striga per sorghum plant were obtained with sorghum only, which also have the lowest yield (2370 kg/ha). A significantly (P≤0.05) higher yield (3709 kg/ha) was obtained with intra-row mixture of sorghum and densely planted cowpea variety, IT96D-452-1. This treatment also had the least number of Striga per net plot and per plant, which may be attributed to the effectiveness of the cowpea trap crop in stimulating the suicidal germination of the Striga seeds which would have otherwise attacked and reduced the productivity of the host plant. It may also be attributed to the effectiveness of the cropping method, with a ratio of sorghum : cowpea plants of 1:13, which improves the productivity of the system and at the same time suppresses the germination of Striga seeds.
Keywords: Sorghum, yield, Intra-row, inter-row, cowpea, mixed-cropping