Characterization of the green gram (Vigna radiata L.) genotypes through both morphological and biochemical parameters

Abstract

Eight genotypes of greengram were collected in the present investigation from AICRP on MULLaRP, Bidhan Chandra Krishi Viswavidyalaya (BCKV) and they were characterized with ten quantitative, nineteen qualitative and two biochemical parameters as per the NBPGR descriptor. Grouping based on DUS descriptors indicate the existence of genetic diversity within the genotypes. These eight genotypes were evaluated and characterized for 31 DUS descriptors. However, 21 characters out of 31 characters of DUS descriptors differed significantly indicating a large and exploitable amount of genetic variability for the individual elite improved line profile development for identification and protection. The elite lines are similar for the important plant traits like semi erect and determinate growth habit but the development of erect types is the need of hour and indicates the incorporation of new germplasm for the improvement of this trait in the present material. Genotypes could be easily identified through some unique characters: SML-1822 could be identified amongst genotypes studied here in through its semi-erect growth habit, green stem colour with purple shade, dark green leaf colour, light yellow flower colour and bearing pods below canopy; identification of IPM-512-1 and TMB-37 could be made through seeds with drum shape and dull seed luster respectively; and Pusa Vishal through its leaves with dark green colour along with intermediate pod position and larger seed size. Samrat is having highest amount of protein as well as carbohydrate content among these genotypes. Thus, the DUS descriptor data generated with unique profiles of the elite improved lines can be used for the registration with PPV & FRA and seed purity testing.