Document Type : Original Article
Authors
1
Ph.D. Student of Plant Breeding,Yazd Branch, Islamic Azad University, Yazd, Iran
2
Assistant Professor, Department of Plant Breeding, Yazd Branch, Islamic Azad University, Yazd, Iran
3
Assistant Professor, Horticulture Crops Research Department, Ardabil Agricultural and Natural Resources Research Centre, AREEO, Ardabil, Iran
Abstract
Introduction: Potato with scientific name Solanum tuberosum L. is one of the most important crops in the world.
Materials and Methods: In order to study the genetic diversity of potatoes, 42 potato hybrids obtained from breeding programs (The intersection of Kaiser ♀ × Lusta ♂; Kaiser ♀ × Savalan ♂; Hermes ♀ × Savalan ♂ and Savalan ♀ × Lusta ♂) of were executed with four control cultivars in three replications to bring genetic varieties as a completely randomized block design based on the quantitative and qualitative traits for the two year (2016 and 2017) in Ardabil Agricultural and Natural Resources Research Station Farm.
Results and Discussion: LK5 genotype obtained by the intersection of cultivar Kaiser♀ × Lusta♂ with a mean of 54.45 ton/ha had the maximum and genotype LS12 obtained by the intersection of cultivar Savalan ♀× Lusta♂ with a mean of 28.16 ton/ha had the minimum tuber yield. The first component justified 36.2, 19.29, and 13.87% of all data changes. The by-plot diagram of Savalan cultivar introduced genotypes of LK11, LK9, LK7, LK4, and LK2 (obtained by the intersection of Kaiser ♀ × Lusta ♂) and genotypes LS7, LS5, and LS2 (obtained by the intersection of Savalan ♀ × Lusta ♂) as the most desired cultivars, respectively. In addition, the first, second, and third factors were called an effective factor on the properties of the tuber, an effective factor on plant height, and an effective factor on yield, respectively. According to the obtained results from the detection function, 38 hybrids with four parents (13, 27, 41, and 42) were to four groups. The first cluster includes genotypes LK2, LK1, LS2, LS6, LK12, LK11, LK9, LK7, LK6, LK4, LK3, and Hermes. This cluster has the second rank between groups based on tuber yield. The second cluster including genotype LK5 caused by the intersection of Kaiser♀ × Lusta♂ had the first rank based on tuber yield, and a superior hybrid of this cluster in hybridization can be used to increase tuber yield.
Conclusion: The results showed that second cluster including genotype LK5 caused by the intersection of Kaiser♀ × Lusta♂ had the first rank based on tuber yield, and a superior hybrid of this cluster in hybridization can be used to increase tuber yield.
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