Performance of determinate and indeterminate RILs of Indian bean (Lablab purpureus L. Sweet)

Abstract

Growth habit is an important agronomic trait that affects the production and productivity of crop plants including pulses. A preferential shift towards the determinate growth habit types in pulses along with photo-insensitiveness was observed due to their reduced branching, shorter internodes, resistance to lodging, shortened flowering period with synchronized flowering and maturity, and also due to its suitability for mechanical harvesting. In Indian bean, recently few determinate genotypes were released for cultivation nevertheless, most of the wild types and landraces are indeterminate in growth habit. The present study performed the phenotypic evaluation of determinate and indeterminate genotypes in F7 RILs of determinate x indeterminate crosses, which revealed some of the significant observations on flowering time, plant height, number of racemes produced, and several important yield-related traits in Indian bean. This information could be utilized for selecting the best plant type, optimum plant density, and preferable crop geometry in the cultivation of Indian bean varieties.