Technical investigation of rapeseed production in two direct seeding and transplanting methods in different planting dates in Khuzestan province
2005
Rahnema, Abdol Amir | Karami, Abrahim
Khuzestan planting rotation and pattern , were caused canola planting after summer plants. The jermination in late planting and direct method is very low because low quality seed soil bed preparation. This experimental was carried out for canola direct and seedling methods in different planting dates. This trail was lay out in randomized complete block desing in strip plot method, with five planting dates as 10. Oct, 20. Oct 1. Nov𥲺. Nov and 20 . Nov in horizental plots and two direct and seedling method in vertical plots for two years. Compound analysis were showed significant different between phenological charecters yield and yield components, of sowing dates. Also Planting method and interaction effects have significant diferent effects, expect seed per pods and seed weights. The sowing date to germination period or transplanting seedling to establishing were increased and late in sowing dates. Also flowering and rapening duration, pods per plant, seeds per pods, seed weights, seed and oil yield were decreased with late in plantig. Seedling method rate to seed direct planting was caused signifcant increase in flowering duration, pods per plant, seed per pod , seed and oil yields, Interaction effects were showed high different especially in latest sowing dates. So in 10. Oct to 20 . Oct period direct planting and from 20. Oct to1 . Nov with 4 and 9 percent decrase in seed and oil yield also direct seed and from 10. Nov to 20 . Nov seedling method with 36 to 42 and 53 to 62 pereent decrase in seed and oil yield with 300 to 350 thousand , rials seedling production and transplanting coast were recommended. Canola direct seed planting after 10 . Nov werenot recommended.
Показать больше [+] Меньше [-]