Globales Journal für Biologie, Agrar- und Gesundheitswissenschaften

Abstrakt

STANDARDIZATION OF TEMPERATURE AND MEDIA FOR GERMINATION OF PAPAYA (CARICA PAPAYA L.) CV. SURYA

Padma lay, G. V. Basvaraju, G.Sarika & N.Amrutha

A study was carried out to know the optimum fruit maturity stages, ideal temperature and media, dormancy breaking methods on seed quality parameters of papaya (Carica papaya L.) cv. Surya. Seeds extracted from fruits harvested at 1/4th, 1/2, 3/4th and Complete yellow/orange and after ripening were subjected to germination after removal of sarcotesta at different temperature (20, 25, 30, 35, 20-30, 20-35 and 25-35°C) and at different media (BP, TP, Sand and Coir pith). The results revealed that seeds extracted from freshly harvested complete yellow/orange and 1/4th yellow/orange fruits subjected to after ripening recorded higher germination (52.50 and 94.00%), TDH activity (1.249 and 1.204), lower EC (0.101 and 0.131) and higher field emergence (48.0 and 72.00%) respectively. 25-35°C alternate temperature, Sand and BP media recorded higher germination (89.00, 85.70 and 81.20%), speed of germination (48.56, 32.16 and 27.52) respectively.