秈稻烹調與食用品質及穀粒性狀之遺傳
Other Title
Inheritance of Quality and Grain Characteristics in Indica Rice
Journal
稻米品質研討會專集
Part Of
臺中區農業改良場特刊第13號
Pages
137-152
Date Issued
1988-04
Author(s)
郭益全
劉清
張德梅
謝順景
Y.C. Kuo
C. Liu
T.M. Chang
S.C. Hsieh
Abstract
以包括親本與正反交組合之5×5秈稻全互交組合研究秈稻烹調興食用品質及穀粒大小等7個性狀之遺傳。被評估7個品質性狀之親本間的遺傳變異極大，此種變異係由累加陸與顯性效應所引起。除膠體硬度外，各性狀之累加性效應均遠大於顯性效應。各性狀之遺傳率值均很高，強調表現型變異主由累加性效應控制。鹼質擴散度、顆粒澱粉含量、膠體硬度、粒寬及粒厚等性狀有細胞質效應。經由迴歸與變方分析估得7個被評估性狀之顯性程度除膠體硬度爲完全顯性外，餘均為部分或不完全顯性。其經迴歸圖及親本顯性次序估算判定低鹼質擴散度、低蛋白質含量、高顆粒澱粉含量、高膠體硬度、長粒、寬粒及厚粒爲顯性。正負等位基因之頻度烹調與食用品質性狀相等，穀粒大小性狀不等。鹼質擴散度、蛋白質含量及顆粒澱粉含量之顯性因子總數與隱性因子總相等，膠體硬度及穀粒大小等4性狀則隱性因子總數多於顯性因子數。
The inheritance of 7 quality and grain characteristics related to cooking and eating qualities as well as grain dimensions in indica rice were studied by means of 5×5 diallel crosses including parents and reciprocal crosses.
The genetic variations of 7 quality characteristic evaluated were significant. Both additive and dominance effects were important for all-7 quality characteristics. Furthermore, additive effects were significantly larger than dominance effects for all quality characteristics evaluated except for gel consistency. Estimated heritabilities for all characteristics were very high, indicating that a major portion of phenotypic variability was controlled by additive effects. Maternal effects existed in alkali spreading score, amylose content, gel consistence, kernel width and kernel thickness.
Event(s)
稻米品質研討會
Rice Grain Quality Proceedings of a Symposium
Publisher
台灣省台中區農業改良場
Type
conference paper