Genetic Variability and Phenotypic Correlations Study among Grain Quality Traits and Mineral Elements Concentrations in Colored and Non-Colored Rice (Oryza sativa L.)  

作　　者：Adel A.Rezk Mohamed M.El-Malky Heba I.Mohamed Hossam S.El-Beltagi 

机构地区：[1]Agricultural Biotechnology Department,College of Agricultural and Food Science,King Faisal University,Al-Ahsa,31982,Saudi Arabia [2]Plant Pathology Research Institute,Agriculture Research Center,Giza,12619,Egypt [3]Rice Research and Training Center,Field Crop Research Institute,Agriculture Research Center,33717,Egypt [4]Biological and Geological Sciences Department,Faculty of Education,Ain Shams University,Cairo,11511,Egypt [5]Biochemistry Department,Faculty of Agriculture,Cairo University,Giza,12613,Egypt

出　　处：《Phyton-International Journal of Experimental Botany》2024年第7期1733-1748,共16页国际实验植物学杂志（英文）

基　　金：supported and funded by Deanship of Scientific Research,Vice Presidency for Graduate Studies and Scientific Research,King Faisal University,Saudi Arabia,grant number(Grant A410).

摘　　要：Twenty-four rice genotypes were examined to assess genetic variability,heritability,and correlations for seven-grain quality traits,eight nutritional elements,and protein.ANOVA revealed significant differences for the quality traits studied.For every trait under study,the phenotypic coefficient of variation was higher than the correspon-dence genotypic coefficient of variation.Heritability in a broad sense varied from 29.75%for grain length to 98.31%for the elongation trait.Hulling percentage recovery had a highly significant positive correlation with milling and head rice percentage.Consequently,milling percentage had a highly positive correlation with head rice percentage.In amylose percentage,all the genotypes belonged to low amylose except the Hassawi-1 variety,which had intermediate amylose content.Mineral nutrition contents of magnesium(Mg),sodium(Na),potas-sium(K),calcium(Ca),copper(Cu),manganese(Mn),zinc(Zn),iron(Fe),or protein percentage gave different variations for 24 rice genotypes under all the nutritional elements.Among the 24 genotypes,ten rice genotypes–HighNutrient-1,HighNutrient-2,HighNutrient-9,HighNutrient-8,HighNutrient-3,Hassawi-2,HighNutrient-7,HighNutrient-6,Hassawi-1,and HighNutrient-4–had the highest heist value for all nutritional and protein con-tents,and could be used as a donor to improving new varieties.There was a positive and significant correlation between magnesium Mg,K,Zn and Fe.Consequently,K had a positive correlation with zinc Zn,Fe,and protein percentage.Clustering analysis was divided into two groups:thefirst group included all genotypes rich in nutri-ents,while the remaining genotypes with low nutritional content were included in the second group.

关 键 词：AMYLOSE cluster analysis GENOTYPES grain quality mineral nutrition rice 

分 类 号：S511[农业科学—作物学]