Evaluation of genotype × environment interaction of advanced rainfed lentil genotypes by multivariate GGE biplot method
Given the shortcomings regarding lentil cultivars compatible with temperate and semi-temperate rainfed regions of the country, identifying genotypes with potential to be introduced as cultivars is very important. Due to genotype × environment interaction, selection of genotypes with wide adaptation to different environments is difficult. In addition to high yield, these genotypes must have yield stability in different regions, in other words, general stability. In GGE model (G+GE), the selection of stable genotypes is based on both genotype (G) and genotype × environment (GE) interaction effects.
in order to evaluate yield stability of rain-fed lentil genotypes, the present study was conducted based on randomized complete block design with three replications with 14 advanced genotypes along with two local cultivars including G15 and G16 (Gachsaran and Sepehr respectively) over two years (since 2018). The experiment’s locations were Gachsaran, Khormeh Abad, Ilam and Moghan. After collecting data from eight environments, the genotype × environment interaction for grain yield was evaluated by using GGE biplot method.
Principal component analysis in the GGE biplot model showed that 47.1% of the variations caused by G and GE is justified by the first two components (PC1, PC2). The mosaic plot revealed that the contribution of diversity due to genotype × environment interaction was significantly higher than the diversity caused by genotype (G) alone. Using GGE biplot model and based on representativeness and discriminating ability, Gachsaran region was identified as a desirable environment to identify variation among genotypes. G11 was the closest genotype to the ideal genotype in terms of grain yield. This genotype had the highest yield among genotypes and was in a moderate position in terms of stability. Genotype 9 was in the second place in terms of yield but had high yield stability since was the closest genotype to the ideal genotype in terms of stability. Genotypes 10 and 1 were also in the next ranks considering both yield and stability. These four genotypes had considerable advantage in terms of both average yield and yield stability compated to control cultivars (G15 and G16). In addition, G5 showed the least yield stability among all genotypes. G15 and G16 as local cultivars showed relatively low grain yield and stability compared to the most of advanced genotypes.
G9, G11, G10, G1 were considered as genotypes with potential to be introduced as new cultivar(s) following further experiments in private farm lands.
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Grain Yield Stability Analysis of Lentil Genotypes by AMMI Indices
Payam Pezeshkpour*, Reza Amiri, Iraj Karami,
Journal of Crop Breeding, -
مناسب ترین تاریخ کاشت و تراکم بوته ماش رقم گوهر در منطقه ایلام
عباس سلیمانی فرد*،
نشریه حبوبات، بهار و تابستان 1402 -
Evaluation of grain yield stability of barley genotypes using additive main effects and multiplicative interaction model
Elnaz Ramzi, Ali Asghari *, Asghar Ebadi, Omid Sofalian,
Journal of Plant Physiology and Breeding, Winter-Spring 2024 -
رقم جو راشین، مناسب برای کشت در مناطق دیم گرمسیری و نیمه گرمسیری کشور
بهروز واعظی*، رحمت الله محمدی، ، طهماسب حسینپور، امین نامداری، معصومه خیرگو، ثریا قاسمی، علی احمدی
نشریه علوفه و خوراک دام، بهار و تابستان 1402