Phenology Phenology Study of Pod Formation and Determination of Physiological Maturity Age on Seed Quality in 5 Genotipes of Winged Bean Plants (Psophocarpus Tetragonolobus L.)

Abstract

The kecipir plant is an undertilized crop, the kecipir plant can be cultivated as a source of protein. Efforts to obtain quality seeds by knowing the right physiological maturity age. The exact age of physiological maturity can be seen from the phenology of pod formation on physiological characters with the characteristics of changes in color and fruit size (length and width) in kecipir pods. The study was conducted by observing each population of 5 genotypes, each genotype population consisting of 30 plants. Seed quality research was conducted using a completely randomized design repeated 8 times with treatment on each of the 5 genotypes of kecipir: color changes in pods not added to the harvesting day, color changes in pods plus 5 days of harvesting age and color changes in pods plus 10 days of harvesting age. The results showed there were variations in different harvesting ages in the ages obtained are as follows: NSM 2.1.1, Kpj 1.1.1.1, PTL 2.1.2.1, and KePM 2.2.2 genotipes: (53 HSP,58 HSP,63 HSP), while in MML 1.4.2.1 genotipe: (48 HSP,53 HSP,58 HSP). The treatment of discoloration on pods not added to the day of harvesting age or age 48 HSP on MML 1.4.2.1 genotipe and age 53 HSP on NSM 2.1.1, Kpj 1.1.1.1, PTL 2.1.2.1, and KePM 2.2.2 genotipes showed the best age with average yield values, moisture content of 10.36%, weight of 100 grains 56.75 g, seed diameter 9.80 mm, germination 92%, growth speed 42.49% and growth uniformity 56.75%. The optimal harvesting ages varied among genotypes, with the best results observed at 48 HSP for MML 1.4.2.1 and 53 HSP for NSM 2.1.1, Kpj 1.1.1.1, PTL 2.1.2.1, and KePM 2.2.2. At these ages