不同种植方式和密度对瓜尔豆生长发育及产量的影响

Effect of Different Cropping Pattern and Density on the Growth Development and Yield of Clusterbean(Cyamopsis tetragonoloba)

研究了相同行距(15cm)不同株距(10cm、15cm、20cm、25cm)和相同株距(15cm)不同行距(10cm、15cm、20cm、25cm)的二种种植方式对瓜尔豆生长发育和产量的影响。结果表明:瓜尔豆的产量先随密度的增加而上升,当密度达到15cm×15cm时,产量最高,密度再增加(15cm×10cm或10cm×15cm),产量反而下降;瓜尔豆的千粒重随种植密度的增加而降低;植株的叶片数、株高、单株有效花序数、单株产量等随着种植密度的降低而增加,当降到行株距为15cm×20cm或20cm×15cm时,这些指标均达最大值,当种植密度进一步降低,达到行株距为15cm×25cm或25cm×15cm时,这些指标反而下降。

The seed yield of guar SU-B5 increased with the sowing density and hit the highest yield with the density 15cm × 15cm. The seed yield dropped with the density more than 15cm × 15cm;The number of leaves, plant height, clusters per plant, pods per cluster, seeds per pod, nodes with pods, seed yield per plant and so on increased with the lower density; the yield components mentioned above hit the maximum when the spacing was 15cm × 20cm or 20cm × 15cm. With the spacing 15cm × 25cm or 25cm × 15cm, these parameters decreased; The kernel weight reduced when the density increased. The experiment indicated that the reasonable density was 300,000 - 350,000 holes per hm^2, 3 - 5 seeds per hole to obtain 2 - 3 seedlings per hole, in Xinjiang.