Effect of nitrogen and sulphur nutrition on yield parameters and protein composition in soybean [Glycine max (L.) Merrill].

Abstract

) and combined application of nitrogen (N) and sulphur (S) were investigated. Application of S alone or combined with N significantly increased plant height, number of seeds per pod and total seed yield. Sulphur-containing amino acids viz., methionine and cysteine increased significantly (P≤0.05) by all the treatments in comparison to control and maximum increase of 1.3 fold was observed by urea application. The contents of different protein fractions viz., albumin, globulin and glycinin (a subfraction of globulin) increased under the effect of N and S applied alone or in combination from 30 DAP to maturity with maximum accumulation at maturity as compared to control (without N or S application). Gypsum @ 20 kg S ha -1 resulted in higher accumulation of glycinin (11S) relative to β-conglycinin (7S) fraction of globulin protein in soybean seed thereby increasing 11S:7S ratio indicating improvement in soybean seed quality. The current study showed that improvement of soybean nutritional quality can be achieved by application of gypsum @ 20 kg S ha -1 along with recommended N doses under agroclimatic conditions of Punjab.

Effect of Sulphur and Zinc Fertilization on Growth and Yield of Soybean [Glycine max (L.) Merrill] under Nagaland Condition

“…The increase in these growth parameters may be attributed to the favourable effects of sulphur on N-metabolism, cell division, photosynthetic process and chlorophyll formation, protein structure, vitamins and other structural components resulting in an increased growth stage and development of the plant. Similar conclusions were also reached by Farhad et al (2010), Yadav et al (2013), Sharma et al (2014) and Gill and Sharma, (2017). A higher shoot dry weight and LAI was found in the sulphur level of 20 kg S ha -1 which was at par with 40 kg S ha -1 while the lowest was recorded in the control (Table 1).…”

Influence of Various Levels of Zinc and Sulphur on Storage Proteins and Protein Quality of Lentil (Lens culinaris) Varieties

“…On the contrary globulin fraction did not show any increase. The results are in accordance to the findings of Sharma and Sharma (2014); Sharma et al, (2013).…”

Rhizobium inoculation and sulphur fertilizer improved yield, nutrients uptake and protein quality of soybean (Glysine max L.) varieties on Nitisols of Assosa area, Western Ethiopia

“…In addition, modifies seed protein composition by decreasing the abundance of storage proteins with the highest content of S-containing amino acid, while increasing the level of S-poor globulins (Zuber et al, 2013). Similarly, Sharma and Sharma (2014) also reported that a significant increase in Scontaining amino acids such as methionine and cysteine obtained by combined application of N and S for soybean. Therefore, the results of this study indicated that S fertilization is required to improve N-use efficiency and thereby maintaining protein quality (Fismes et al, 2000).…”

“…Because S is a main component of the amino acids methionine, cysteine, and cystine, coenzymes, thioredoxine and sulfolipids and hence improves protein quality (Jemal et al, 2005). Sharma and Sharma (2014) also reported S-containing amino acids such as methionine and cysteine increased significantly by combined application of N and S and indicated improvement in soybean nutritional value. This is because N and S are both involved in plant protein synthesis, a process that may determines yield of crops (Habtemicheal et al, 2013).…”