| Development of local rice variety at Krabi Rice Research Center is an experiment under local upland rice breeding program in the southern region for compensating rubber trees and oil palms. One hundred and twenty rice varieties that farmers grow in the southern region were selected to study since 2008 until now. The aims of this study are to record the characteristics, categorize, investigate, select pure rice seed, compare production and test on using nitrogen fertilizer. The result showed that this variety, Dokkha, is photoperiod sensitive. It has 332 kg per rai, straight clum 150 cm plant height and 145 - 150 days maturity, green leaves, 8 seeds per panicle, straw colored husk, 20.74 % amylose content and susceptible to rice blast disease. For... |
