Genotype by yield* trait (GYT) biplot analysis: A novel approach for phenotyping sunflower single cross hybrids based on multiple traits

Sunflower is one of the most important oilseed plants in world and its oil has nutritional high economic value. Selection high-yielding hybrids sunflower breeding. In this regard, 11 new along with four cultivars were evaluated a randomized complete block design replications during 2018–2020 growing seasons. The phenological agronomic traits including days to flowering, ripening, plant height, stem diameter, head seed number per head, thousand-seed weight, content, yield measured. study, methods genotype × trait (GT) biplot (GYT) used identify interrelationships between different select best based on multiple traits. According results, GYT method was more efficient compared GT method. Considering both superiority index (SI) biplot, genotypes G8, G11, G5, G3 superior terms agronomical attributes such as flowering maturity times, close relationship grain yield. Oil content 47.9%, 46.4%, 45.8%, 46.3%, respectively. results indicated that there potential for simultaneous genetic improvement characteristics (i.e., early maturity) sunflower. Overall, graphical provides practical approach identification suitable according set intended under multi-years or multi-locations.