03. Yield and yield attributes of rapeseed cultivars as influence by sulfur level under Swat valley conditions
Main Article Content
Abstract
The performance of rapeseed cultivars (Brassica napus L.) was evaluated using various sulfur levels at the Agriculture Research Institute (N) Mingora swat, Pakistan during Rabi season 2012-13. The experiment was laid out in randomized complete block design with four replications. Four level of sulfur (0, 15, 30, and 45 kg ha-1) and four cultivars of rapeseed (Oscar, Bulbul-98, Dunkled, and Abasin-95) were used. Rapeseed cultivars were significant for all the parameters. The cultivar Oscar had the maximum capsules plant-1 (360), seed capsule-1 (24), 1000 seed weight (3.38 g), seed yield (2340 kg ha-1), oil yield (1132 kg ha-1) and harvest index (17%) as compared with other rapeseed cultivars. Sulfur application was significant for all parameters. Plots treated with 45 kg S ha-1 produced maximum capsules plant-1 (407), seed capsule-1 (26), 1000 grain weight (3.61 g), grain yield (2701 kg ha-1), oil yield (1291 kg ha-1) and harvest index (18%) as compared with control plots. It was concluded from this study that sowing of cultivar Oscar with 45 kg S ha-1 seems to the best choice for rapeseed producer in the agro-ecological condition of Swat valley.
Keywords: Rapeseed (Brassica napus L.); sulfur; oil yield; seed yield; yield components