Effect of intercropping Chickpea and Dragon’s head ( Lallemantia iberica Fish. et Mey) on weeds control and morphological traits in Chickpea

摘要

In order to investigate the effects of intercropping on weeds dry matter, morphological traits and yieldcomponents of Chickpea, an experiment was carried out as Factorial based on randomized complete block designwith three replications at the research station of Tabriz University in 2012. different planting patterns treatments(a1, a2, a3, a4, a5 and a6: Respectively, pure stand of Chickpea, pure stand of Dragon’s head , additiveintercropping of optimal density of Chickpea + 25%, 50%, 75% and 100% of optimum density of Dragon’s head)were assigned to main plots and four times of weeds control levels (b1, b2, b3 and b4: complete control, no weedscontrol, control after 2-4 weeks after emergence, control after 5-7 weeks after emergence) were allocated to thesub plots. Results showed that intercropping and time of weeds control treatments had significant effects on allof the characteristics. Means compression showed that number of pod in main stem, number nod of main stem,numbers of lateral stem, grain yield and harvest index were maximum in pure stand with complete control ofweeds and in intercropping with no control of weeds were minimum. As addition of density in plant differentpatterns and increase of duration of weeds control make decrease this characteristics exception plant height.Plant height of Chickpea in intercropping treatments with no weeds control significantly was higher than purestand and weeds control treatments.