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 AJPS  Vol.6 No.8 , May 2015
Optimizing Yield and Quality of Canola Cultivars Using Various Potash Levels
Abstract: The response of several canola cultivars to different potassium (K) levels was investigated in terms of various agronomic parameters including yields, oil and protein contents in a trial conducted at The University of Agriculture, Peshawar-Pakistan in Rabi 2010-11. Three cultivars including Bulbul-98, Abaseen-95 and Dure-NIFA, with five levels of potassium i.e. 0, 30, 60, 90 and 120 kg·ha-1 were used in Randomized Complete Block (RCB) design with four replications and factorial arrangement. A larger number of days to 50% flowering (116.6 days), plant height (203.8 cm), leaf area index (4.4), 1000 grain weight (3.5 g), biological yield (13189.3 kg·ha-1), grain yield (1799.2 kg·ha-1) and harvest index (13.9%) were obtained in K applied plots than the plots where K was not applied. The highest oil (45.1%) and protein (27.7%) was obtained in plots where K was applied at the rate of 120 and 90 kg·ha-1, respectively. Among cultivars, Bulbul-98 and Abaseen-95 had higher seed yield and oil percentage. Bulbul-98 had more protein content than Abaseen-95 and Durre-NIFA. On average, cultivars gave higher and at par grain yield at 60, 90 and 120 kg·ha-1. However, they produced higher and at par oil and protein percentage at 90 and 120 kg·ha-1. Bul-bul-98 and Abaseen-95 are recommended for higher grain yield and oil content for general culti-vation in Peshawar valley. However, for higher protein content, Bulbul-98 is better. Potassium applied at 60 kg·ha-1 is recommended for higher grain yield, however, for higher oil and protein content, K at 90 kg·ha-1 is recommended.
Cite this paper: Ahmed, A. , Ali, F. , Inamullah, &. , Ali, A. , Ullah, A. , Naz, R. , Mahar, A. and Ali Kalhoro, S. (2015) Optimizing Yield and Quality of Canola Cultivars Using Various Potash Levels. American Journal of Plant Sciences, 6, 1233-1242. doi: 10.4236/ajps.2015.68126.
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