Author(s): P. S. SANDHU, S. S. MAHAL AND V. SARDANA

Abstract: A field experiment was conducted during the winter (rabi) season at the research farm of Punjab Agricultural University. Treatments consisted of two hybrids (PMH 128 and 145) and one variety RLC1 (check), three nitrogen levels (N , N , N kg ha-1) and two row spacings (30 and 45 cm) evaluated in a split plot design. RLC 1 (check) registered significantly higher seed yield (17.68 q ha-1) than PMH 145 (14.70 q ha-1) and was statistically at par with PMH 128 (16.60 q ha-1). Among the three doses of nitrogen, 150 kg ha-1 of N application produced highest seed yield (17.09 q ha-1) which was statistically at par with 125 kg ha-1of N (16.74 q ha-1), however, significantly higher than 100 kg ha-1 of N (15.14 q ha-1). Among the two row spacing, seed yield was significantly higher in 30 cm 17.01 q ha-1as compared to 45 cm. Quality parameters (palmitic acid, stearic acid, oleic acid, linoleic acid and linolenic acid) were found to be highest in RLC1 (check). Higher erucic acid content was observed in PMH 128 and PMH 145 as compared to RLC1 (check).

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