A Quality of Local Rice Seed Varieties in Maha Sarakham Province and Neighboring Provinces at Different Storability

Abstract

Maha Sarakham Province and neighboring Provinces are the famous jasmine rice or KDML 105 production area. In addition, not only the farmers have been cultivated economics rice seed varieties but also local rice seed varieties are still importance for farmer or some community. However, at this time the
studies of seed quality of local rice seed varieties were limited, thus this study was collected the local rice seed varieties to evaluate the seed quality at 2, 4, 6, 8, 10 or 12 months after harvested under controlled condition (4 - 7°C) and ambient condition or room temperature (25 - 35°C), Ten varieties of local rice seed were Ku Muang Luang, Kore Deaw, Som Ma Lee, Kaw Dore, Chao Deang, Leaung Kum Mad, Sum Pun Deang, Hom Nang Nuan, Kum Dum Tia, and Pha Deang involving comparative varieties; RD 6 and KDML 105 those used in this study. The results showed that the germination percentage of local rice seed varieties were similar to comparative varieties except for Ku Muang Luang and Kum Dum Tia which germination percentage tend to increase when storage period was extensive, as 2 months after harvested, the germination percentage was 71.00 - 72.50% and 61.50 - 62.50%, respectively and presented as 96.50 - 97.50% and 95.00 - 97.50%, respectively at 12 months after harvested. While mean germination time (MGT) and germination index (GI) were provided good aspect when storage time was extensive also, especially storability for 10 or 12 months those released the after - ripening of rice seed. Furthermore, storability under open condition or ambient condition was not affected on the quality of local rice seed varieties and RD 6 or KDML 105 seed.