Rice Breeding for High Yield Potential of Cross CH1 x RD49 by Using the Different of Genetic Background
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Abstract
Rice breeding for high yield potential by using introduced variety. Crossing between introduced variety and Thai improved variety were development methodology for a new line with high yield potential and well adaptation to Thailand’s condition. This experiment was used CH1 variety, which rice introduced from China, crossed with RD49 Thai rice variety. Three populations were contained the genetic of CH1 variety with 50%, 75% and 87.5%. Plant type and grain weight were used for line selection. The results showed that three populations including F5, BC1F5 and BC2F5 progenies were high yield potential. Moreover, the selected lines showed outstanding performance. F5-8-9-2 line was large flag leaf, flag leaf length 41.33 centimeter. BC1F5-80-9-3 was high number of panicle per plant, 12.13 panicles. BC2F5-90-9-10 was high number of filled grains per panicle, 227.80 grains. Outstanding Characteristics of these three lines were related to source and sink that had the main effect on yield.
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บทความที่ได้รับการตีพิมพ์เป็นลิขสิทธิ์ของคณะวิทยาศาสตร์และเทคโนโลยี มหาวิทยาลัยธรรมศาสตร์ ข้อความที่ปรากฏในแต่ละเรื่องของวารสารเล่มนี้เป็นเพียงความเห็นส่วนตัวของผู้เขียน ไม่มีความเกี่ยวข้องกับคณะวิทยาศาสตร์และเทคโนโลยี หรือคณาจารย์ท่านอื่นในมหาวิทยาลัยธรรมศาสตร์ ผู้เขียนต้องยืนยันว่าความรับผิดชอบต่อทุกข้อความที่นำเสนอไว้ในบทความของตน หากมีข้อผิดพลาดหรือความไม่ถูกต้องใด ๆ
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