การสำรวจและประเมินคุณภาพของเมล็ดพันธุ์ข้าวในจังหวัดแม่ฮ่องสอน

Abstract

Survey and evaluation on rice seed quality in Mae Hong Son Province were conducted during 2009-2010. The survey aimed to investigate farmer’s practices on rice seed production and uses, seed demand and problems as well as to monitor farmers after using good seed. Three groups of people were interviewed consisted of seed producers and sellers, farmers who used their own seed and farmers who used good seed. The result showed that most of the seed samples were unqualified as compared to the Rice Department seed standard. The major problems found were seed impurity and mixed of foreign materials. There was only one group of farmers producing and selling rice seed in Mae Hong Son and they were faced with problems on revolving fund and group management. The favorite rice varieties among farmers were RD21 and KDML105 owing to its high yield and good cooking quality. Among farmers’ practices, seeds were usually sown without germination test and transplanting was commonly done by hands. The off type rice was eliminated twice at heading and before harvesting. The major rice production constraints were blast and white backed plant hopper. Harvesting was normally done by hands and seeds were kept for the next season.