Studies on Breeding for High Protein Rice : II.Inheritance of the High Protein Property in a Japonica Rice Cross
Studies on Breeding for High Protein Rice : II.Inheritance of the High Protein Property in a Japonica Rice Cross
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高蛋白水稻育种研究：二、粳稻杂交高蛋白特性的遗传
DOI：
10.1270/jsbbs1951.26.17
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发表时间：
1976
期刊：
影响因子：
2.4
通讯作者：
K. Kushibuchi
中科院分区：
文献类型：
--
作者：
T. Higashi;K. Kushibuchi
对日本水稻品种“福石木”的高蛋白性状进行了遗传和系谱分析。利用高蛋白品种“Fukunlshlkl”与低蛋白品种“Fujimlnori”杂交的F2群体，研究了高蛋白性状的遗传特性。F2群体均值和F1群体均值落在低蛋白亲本和中蛋白亲本之间。在蛋白质含量的F2分离中观察到单峰对称分布（图1）。根据F2杂交种群体的遗传方差计算蛋白质含量的广义遗传力，估计值为0.45。F2与F3和F3与F4的蛋白含量亲代相关性均为0。551和0。709，两者在1%水平下均具有统计学显著性（图3、图4）。在蛋白质含量与其他农艺性状的关系中，上述杂交的F2 ~ F4代主要呈负相关。早期的、矮小的、产量低的分离体往往富含蛋白质（表1）。
The high protein property of a Japanese rice variety "Fukunishiki" was studied geneti cally and genealogically. Inheritance of the high protein property was investigated by the use of the F2 hybrid population derived from the cross of the high protein variety "Fukunlshlkl" wlth a low protein one "Fujimlnori". The F2 population mean as well as the F1 mean fell on between the low protein parent and the mid-parent values. A monomodal, symmetrical distribution was observed in the F2 segregation of protein content (Fig. 1). The broadsense heritability of protein content was computed based on the genetic variance of the F2 hybrid population and the estimated value 0.45 was obtained. The F2 to F3 and F3 to F4 parent-offspring correlations for protein content were 0. 551 and 0. 709 respectively, both of which were statistically slgnificant at the 1% Ievel (Fig. 3, and Fig. 4). Regarding to the relatios between the protein content and the other agronomic traits, negative correlations were predominantly observed in F2 through F4 generations derived from the above-mentioned cross. Early, short-statued, and poor-yielding segregants tended to be rich in protein (Tabe 1).