Drought tolerance testing of paddy variety Inpari 4 with PEG-6000 in the germination phase

Abstract

Paddy (Oryza sativa L.) factors in the importance of life for Indonesians. The challenge that will be faced in the future is global warming which can cause drought in the agricultural sector. Paddy is very susceptible to drought during germination and early growth stages. Such drought can cause crop production to decline. This research aims to provide earlier information on drought-tolerant paddy varieties. The research carried out in the Laboratory of Ecology and Plant Production Management, Sebelas Maret University. It was applied FCRD consisting of the first factor of PEG-6000 concentration (C) which is 0% (C0), 10% (C1), 15% (C2), 20% (C3) and 25% (C4), the second factor of soaking duration (S) is 12 hours (S1), 24 hours (S2) and 36 hours (S3). The data obtained were analyzed using ANOVA and further tested with DMRT 5%. The results of research on seed viability from the application PEG-6000 which can have a drought effect show that at a temperature of 26°C produces germination of 84,30%, C3S3 gave the highest value on germination (90,50%) and growing speed (47,58%/etmal), C0 gives the highest value at lead length (29,05 cm) and C4 gives the highest value at radicle length (35,64 cm).