PJB-2018-731
OPTIMIZING THE RATE OF PHOSPHORUS TO ENHANCE GRAIN YIELD AND QUALITY IN TWO CAMELINA SATIVA (L.) CRANTZ ACCESSIONS: AN EMERGING OIL SEED CROP
Muhammad Mansoor Javaid
Abstract
Camelina sativa (L.) Crantz is an emerging oil seed crop in Pakistan and research information on its response to phosphorous (P) fertilizer is lacking. The objective of this study was to determine the response of C. sativa growth, yield and seed quality to different rates of P fertilizer. Phosphorous was applied at the rate of 0, 30, 40 and 60 kg ha-1 to two C. sativa accessions namely Canadian and Australian. Soil applied phosphorus rates had significant effects on the growth, yield and quality of C. sativa and the two accessions were varied to each other. Australian accession performed better in terms of quality traits and Canadian was superior in terms of seed yield. Increase in P rate improved the growth, yield and quality and 60 kg P ha-1 resulted in maximal crop growth rate (6.79), seed yield (1339 kg ha-1), total P uptake (0.67%) and oil contents (39.8%). Regression model estimated that each increment in P rate increased the seed yield by 11.5 and 11.2 kg ha-1 in Canadian and Australian accessions, respectively. It is concluded that increase in P rate from 0 to 60 kg ha-1 improved the growth, yield and seed quality of C. sativa accessions and 60 kg P ha-1 found to be more effective to achieve optimum yield and profitability.
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