Authors

• M. Shareh ¹
• M.H. Rashed Mohasel ²

¹ Scientific member, Sabzevar Azad University

² Scientific member, Prof, of Ferdowsi University of Mashhad

Abstract

In order to study the effect of  plant density  and times of weed control, an experiment was conducted in spring 1998 at the Ferdowsi University of Mashhad, agricultural  college, experimental station. this study had a factorial arrangement with 2 factores based on completely randomized block  design with 4 replicates. Factors were: plant density with 3 levels(60,120 and 180 plants/m²) and weed control times with 4 levels(uncontrolled (w0), one time weed control at 3^rd week(w1), two times weed control at 3^rd ,6^th (w2) and  three times weed control at 3^rd 6^th and 9^th week(w3). Yield was increased by increasing of plant density which in turns reduced the no. of lateral  branches, no. of umbell per plant, no. of seed per umbell, weight of 1000 seed and harvest index. Yield, no. of lateral branches, no. of umbell per plant, no. of seed per umbell, weight of 1000 seed and harvest index were increased by  increasing time of weed control. The results of this study indicated that 180 plants/m2 and two times weed control at 3^rd, 6^th week after emergence resulted the maximum yield in Mashhad area.

Keywords

• anise
• plant density
• weed control