Effect of Salicylic acid on growth, yield, biomass partitioning and quality of Indian mustard under different nutrient sources
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Date
2021-01
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CCSHAU, Hisar
Abstract
A field experiment entitled “Effect of salicylic acid on growth, yield, biomass partitioning and
quality of Indian mustard under different nutrient sources” was conducted on Agronomy farm
at CCS Haryana Agricultural University, Hisar during Rabi seasons (2018-19 and 2019-20).
The treatments in mustard during Rabi seasons comprising of 20 treatment combinations
having 4 levels of foliar spray of salicylic acid and 5 different nutrient sources was laid out in
a split plot design with four replications.
Results showed that salicylic acid applied as 200 ppm foliar spray at flower initiation
and full bloom stage recorded the maximum values of growth parameters (plant height, dry
matter accumulation, dry matter partitioning, number of branches, LAI, CGR, RGR, NAR
and LAD), yield parameters (number of siliqua on main shoot, number of siliquae plant-1,
length of main shoot, length of siliqua, number of seeds siliqua-1 and 1000 seed weight), yield
(seed, stover and biological yield), physiological traits (Relative water content and
chlorophyll content), soil nutrients availability, nutrients content and uptake, net returns (₹
ha-1 44431) and BC ratio (1.72) proved significantly superior over all other treatments.
However, the treatment application of 200 ppm salicylic acid at flower initiation remained
equally effective with regard to above parameters. Further, Results showed that application of
treatment 1/3 each through FYM, vermicompost and biogas slurry proved significantly
superior over all other treatments with respect to all growth parameters (Plant height, dry
matter accumulation, dry matter partitioning, number of branches, LAI, LAD, CGR, RGR and
NAR). The yield attributes (number of siliqua on main shoot, number of siliquae plant-1,
length of main shoot, length of siliqua, number of seeds siliqua-1 and 1000-seed weight) and
seed, stover and biological yields, physiological parameters (Relative water content and
chlorophyll), quality parameters (protein, oil content and yield), soil nutrients availability,
nutrients content and uptake, net returns (₹ ha-1 35747) and BC ratio (1.63) were significantly
higher with application of 50% RDN through chemical fertilizers + 50% through FYM.