Phenotyping of Quinoa(Chenopodium quinoa Willd.)Genotypes for Morphological,Yield and Nutritional Quality Traits  

作　　者：Jannatul Naim Sheikh Mahfuja Khatun Biswajit Das Mumtarin Haque Mim Sadia Akter Masudur Reza Shakil Habibul Bari Shozib Kristina Toderich Mohammad Anwar Hossain 

机构地区：[1]Department of Genetics&Plant Breeding,Bangladesh Agricultural University,Mymensingh,2202,Bangladesh [2]Department of Plant Science,University of Manitoba,Winnipeg,MB R3T 2N2,Canada [3]Department of Horticulture,Bangladesh Agricultural University,Mymensingh,2202,Bangladesh [4]Grain Quality&Nutrition Division,Bangladesh Rice Research Institute,Gazipur,1701,Bangladesh [5]Graduate School of Bioresources,Mie University,1577 Kurimamachiya,Tsu,514-8507,Japan

出　　处：《Phyton-International Journal of Experimental Botany》2024年第12期3443-3463,共21页国际实验植物学杂志（英文）

摘　　要：Quinoa(Chenopodium quinoa Willd.)is regarded as a superfood due to its exceptionally high nutritional value and ability to withstand stress.Six quinoa genotypes(viz.,SAU Quinoa-1,Regalona,GPBQ-1,GPBQ-2,GPBQ-3,and GPBQ-4)were characterized for morphological,yield,and nutritional quality attributes while being grown under the agro-climatic conditions of Bangladesh.The field experiment was carried out in the winter season(November 2022–March 2023)at the Agronomy Field Laboratory of the Department of Agronomy,Bangladesh Agricultural University,Mymensingh,using a randomized complete block design with three replications.Data on various qualitative and quantitative traits related to growth and yield-attributes were recorded.A large variability was observed among the genotypes for growth habit,stem color,panicle shape,and panicle color at maturity.The whitish color of the seed was found in GPBQ-3 which indicates less saponin content as confirmed by saponin test.Yield attributing quantitative traits(viz.,days to first flowering,days to maturity,plant height,stem diameter,panicle weight,1000-seed weight,yield plant^(-1),above-ground biomass,and harvest index)also showed significant variation among the genotypes studied.Genotypes SAU Quinoa-1 and GPBQ-2 were identified as early maturing genotypes.The higher yield plant^(-1) was recorded in GPBQ-1 and GPBQ-3 genotypes.The phenotypic coefficient of variation for the majority of the traits evaluated was slightly higher than the corresponding genotypic coefficient of variation.For stem diameter,panicle weight,1000-seed weight,yields plant^(-1),and above-ground biomass,high heritability and high genetic advancement were seen as percentages of the mean.Yield plant^(-1) showed significant positive correlation with days to first flowering,days to maturity,plant height,stem diameter,panicle weight,and above-ground biomass(0.568*,0.812***,0.744***,0.895***,0.993***,and 0.985***,respectively).The first two components accounted for 85.5%of the overall variation among the genotypes,ac

关 键 词：QUINOA adaptability agronomic traits genetic parameters HERITABILITY proximate composition 

分 类 号：Q94[生物学—植物学]