Some Agronomical and Physiological Characteristics of Sang Yod Phatthalung Rice from In Vitro Regenerated Plant After Transfer to Clay Soil in Field Conditions

Sang Yod Phatthalung rice is indica and grown as Geographical Indications (GI) in Patthalung province. Its dark red color seed contains high antioxidant activity that helps reduction the risk of some chronic diseases such diabetes, cancer, cardiovascular diseases. So far, yield per planting area this still low. Thus, application PGRs might play an alternative role agronomical physiological characteristics leading to improving rice. First, shoot tips were cultured induce multiple shoots root on liquified PGR-free oil palm culture medium (OPCM) with different concentrations 6-benzyladenine (BA) (0, 0.5, 1, 1.5 mg/L) alone or combination 1-naphthaleneacetic acid (NAA) (0 0.5 mg/L). Complete plants acclimatized field condition at Rice Research Station (PRRS). After acclimatization for 120 140 days, plant obtained from PGR containing OPCM statistically compared. A 2×4 factorial design RCBD 4 replication was performed. The results clearly demonstrated adding BA increase height, number panicles, panicle length leaf chlorophyll content. Plantlets vitro culturing tip mg/L gave highest average height 189.50 cm, panicles 34.00 32.50 cm content 39.65 SPAD unit. present study indicated production new types future. HIGHLIGHTS effect PGRs, conditions characteristic evaluated 5 BA-derived germinated higher than ex Addition increases length, units, respectively GRAPHICAL ABSTRACT