Evaluation of Plant Performance and Synchronous Maturity of F4 Mung Beans
The short harvest period or synchronous maturity is the main focus of mungbean breeding programs. This study aimed to evaluate the agronomic character and synchronous maturity of mungbean F4 generation from a selection of VR480B × Vima 1 crosses. The research was held in Bengkaung Village, West Lombok from March until June 2021. The genetic material consisted of F4 seeds, and VR480B and Vima 1 as controlled genotypes. A segregated population design was carried out and all of the plants were observed individually. F4 population had variability on all qualitative characters except growth type, twining habit, and the color of the ventral suture of the immature pod. There were 140 F4 genotypes with synchronous maturity because had an earlier harvest period rather than both parents. The selection of the F4 population based on harvest period and seed weight per plant revealed as many as 24 genotypes with the potential to have a shorter harvest period of 3.55 days and seed weight of 4.56 g compared to the initial F4 population, allowing them to potentially be continued in the next breeding cycle.
Keywords: HP1, HP90, harvest period, productivity, synchronous maturity