Seventy-three accessions of green gram collected from different sources along with three controls were studied for 20 qualitative characters at National Bureau of Plant Genetic Resources (NBPGR), Regional Station, Rajendranagar, Hyderabad, India during 2014-2015. Based on the plant growth pattern, green gram accessions were classified into determinate (10) and indeterminate (66). Based on pod color, the accessions were classified into brown (12) and black (64) colored pods. On the basis of seed luster, green gram accessions were grouped into dull (43) and shiny (33). Based on seed shape, green gram accessions exhibited diversity for seed shape, i.e., oval (43) and drum (33). Among the distinct morphological traits, seed luster may be used as an indicator in broad classification of genotypes into different groups rather than of individual genotype.
The present study was aimed to investigate the effect of modified atmosphere with elevated levels of CO 2 against pulse beetle, C. chinensis in stored horse gram. Seeds were artificially infested with C. chinensis and exposed to CO 2 (30%, 40% and 50 %) and packed in air tight containers. Concentrations of 40% and 50% CO 2 not only checked seed infestation but also checked the progeny production of pulse beetle and reduced the weight loss of seed compared to normal atmosphere. Storage of horse gram seeds in CO 2 rich atmosphere also maintained seed quality without any detrimental effect on germination and seedling vigor up to six months of storage.
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