Investigation of Morphological- Agronomic Diversity in Some of Tomato Cultivars in Khash Region

Subject Areas : Sustainable production technologies

Mansoor Saljooghianpour ¹ , Mohammad Rasouli ²

1 - Assistant Professor، Agronomy and Plant Breeding Department، Iranshahr Branch، Islamic Azad University، Iranshahr، Iran
2 - Assistant Professor، Department of Plant Breeding، Takestan Branch، Islamic Azad University، Takestan، Iran

Received: 2021-06-21 Accepted : 2021-07-11 Published : 2021-05-22

Keywords: Cluster analysis, Tomato, stepwise regression, agro-morphological diversity, phenotypic correlation,

Abstract :

Tomatoes have many varieties that differ in traits of plant growth, quality and shape of the fruit and other traits. In order to investigate the morphological variation of some tomato cultivars in Khash region, an experiment was conducted as a randomized complete block design with three replications and ten cultivars including Orabana, Red Claude, Red Top, Red Jerez, Western Red, Sunsild, Rio Grande, Delba F1, Tivi F1 and blankets Pride. At the end of the experiment traits such as number of fruits per plant, average fruit weight, fruit diameter, final yield, biomass, harvest index, fruit juice volume, fruit dry weight, total soluble solids, acidity and vitamin C were evaluated as agronomic traits. Were affected. At the end of the experiment, after multiple analyzes, it was found that Tivi F1 and Delba F1 hybrids and Orabana had the highest yield and were suitable for cultivation in Khash region. Also, cluster analysis showed that among the 10 varieties of 3 varieties in group A, 5 varieties in group B and 2 in group C were placed. This grouping showed that genetic diversity followed a significant pattern, because cultivars with better and more closely related conditions under conditions were similar in the same groups. Based on stepwise regression results, the number of fruits per plant justified 63.09% of the fruit yield per plant changes. After fruit number per plant, average fruit weight and number of days to flowering had the greatest effect on fruit yield per plant.