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Studies on the effect of nitrogen fertilization and growth regulators on seed yield and some quality criteria of oilseed rape brassica napus l



Studies on the effect of nitrogen fertilization and growth regulators on seed yield and some quality criteria of oilseed rape brassica napus l



Fett Wissenschaft Technologie 91(9): 353-357



A field experiment with the cultivar Arabella was carried out to investigate the effect of two nitrogen-levels and the effect of the growth regulators RSW 0411 and Tebepas upon the resistance to lodging and upon seed-yield, oil content, the pattern of fatty acids in the oil and glucosinolate contents of the seeds. Results revealed that the number of branches, the number of buds per plant, the 1000-seed weight and the seed-yield increased with a higher nitrogen supply. The protein- and the glucosinolate-contents also increased but the oil-content was slightly lower and the pattern of fatty acids in the oil was not influenced by the nitrogen level. Spraying rape plants with both of the above-mentioned growth-regulators tended to decrease plant-height: but the increase in the number of branches and the buds per plant positively influenced the seed-yield, 1000-seed weight and the oil-content of the seeds. The glucosinolate-content and the composition of fatty acids in the oil remained constant.

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