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Plant hormones play a vital role in combination of many growths and behavior process of
plants life. Plant growth regulators can help to manage balance of phytohormones. Auxin and
gibberllic acid being known well plant growth promoting hormones have shown to be involved
in a variety of plant growth and development. The field experiment was conducted to evaluate
the effect of foliar application of nitrogen, phosphorus; gibberellic acid and indole-3-acetic
acid with two canola mutants R00-125/14, W97-75/16 with their respective parents Rainbow
and Westar were used in this experiment. The application of N, P fertilizers increased 67%
seed yield in brassica. The early days to maturity was recorded under treatment of and
maximum number of branches plant-1, siliqua plant-1, 1000 seed weight and seed yield kg ha-1
was recorded under the treatment of 90N-45P-1 0GA3-10 IAA while minimum number of
branches plant-1, sliqua plant-1 and 1000 seed weight were recorded under the treatment of
90N-45P-15GA3-15 IAA. It is recommended that brassica should be sown under the treatment
of 90N-45P-10GA3-10 IAA to achieve best performance to produce more seed yield and
quality trait in brassica.
Keywords: N P, fertilizer, Gibberellic Acid (GA3), Indole-3- acetic acid (IAA), Canola (Brassica napus L.) genotypes