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Abstract

Biochemical Studies in Rust Resistant and Susceptible Genotypes of Soybean

Sachin K, Nargund VB and Shamarao J*

Biochemical parameters play an important role in resistance or susceptibility in plants against diseases. Development of resistant varieties is the most appropriate approach to control the disease and the concept is now developing to explore the built-in plant defense mechanism in relation to pathogen attack. An attempt was made to study the biochemical factors imparting rust resistance in soybean genotypes at 75 days after sowing (DAS). The resistant genotypes had more of total phenols than susceptible genotypes. Total sugar (Reducing and Non reducing) content was more in resistant genotypes compared to susceptible genotypes at 75 DAS. The resistant genotypes EC- 241780 recorded maximum (5.78 mg/g.) reducing sugar followed by 4.75 mg/g in EC- 241778 (P) genotype and least was recorded 3.31 mg/g in JS-335 susceptible genotype. Among the genotypes EC 241778 recorded highest non reducing sugar content of 2.27 mg g of fresh wt followed by DSb 21 (2.25 mg/g). The least non-reducing sugar content of 1.55 mg/g was recorded in JS 335 followed by JS 93-05, (1.63 mg/g).

Published Date: 2020-07-24; Received Date: 2020-06-17