The investigation about the reduction of the herbicide in order to suppression the density of different of (Sinapis arvensis)in rape seed
Subject Areas : Ecophysiology & Phytochemistry of Medicinal and Aromatic Plants
ehsan alah jalili
1
(student)
farnaz ganjabadi
2
(student)
mehdi azizi
3
(student)
Keywords: Density, yield, Zarfam, Option 500, rape seed,
Abstract :
In order to evaluate the effect of reducing the use of herbicides to control wild mustard in canola varieties were different densities in the province of Alborz as split - factorial randomized complete block design with three replications and treatments include: Rapeseed (C) as the main factor (MP) on 2 level (including: (C1) Zarfam and (C2) option 500), and wild mustard density (D) in three levels (including (D1) zero, (D2) 7 and (D3) 15 plants per square meter) and herbicides. (H) in three levels (including (H1) 100%, (H2) 75% and (H3) 50% recommended dose) are as minor as a factorial was. The dry weight of weed species, rapeseed yield components, and seed yield and growth parameters were analyzed. Based on the results, the highest percentage of dry matter loss than control weed (weed), respectively C₁D₂H₂ treatments and C₂D₂H₁ and C₁D₂H₁ with 19/78, 12/78 and 0/78%, the highest percentage of dry matter loss had the lowest percentage of weeds and weed dry matter loss (18/48) of treatment was C₂D₃H₃. By comparison, average grain yield, in the presence and absence of wild mustard showed that the highest grain yield and the lowest in Option 500 is Zarfam.
