Document Type : Research
Authors
1
Ornamental Plants Research Center (OPRC) Horticultural Sciences Research Institute (HSRI), Agricultural Research, Education and Extension Organization (AREEO), Mahallat, Iran
2
Associate. Prof, Deputy Director of Research and Technology and, Director of Department Genetic and Breeding, Ornamental Plants Research Center (OPRC), Horticultural Sciences Research Institute (HSRI), Agricultural Research, Education
3
Associate Professor in Department of postharvest physiology, Ornamental Plants Research Center (OPRC), Horticultural Sciences Research Institute (HSRI), Agricultural Research, Education and Extension Organization (AREEO), Mahallat, Iran.
4
Researcher of in Department of Technology and Production Management, Ornamental Plants Research Center (OPRC), Horticultural Sciences Research Institute (HSRI), Agricultural Research, Education and Extension Organization (AREEO), Mahallat, Iran
10.22092/rhsj.2025.367424.1108
Abstract
Hipeastrum hybridum (Hort) from Amaryllidaceae family is one of the bulbous flowers which has a suitable case for introducing new genotypes in iran. The main plan of this breeding program project started with the import of 6 commercial cultivars in 2016. In the breeding plan, in order to breed and create a new genotype, the classical plan of hybridization and selfing was carried out. In this project, the genotypes resulting from crossbreeding were exposed to the most important pest of the mealybug Vryburgia amaryllidis (Bouche), (Hem.: Pseudococcidae) and the sensitivity, tolerance, resistance and resistance index of the plant or (PRI) Hippeastrum was estimated. Among the 10 tested lines, code H11-oprc with 88.4% very tolerant in group a, genotype and code H13-oprc with 52.5% tolerant in group b, code H11-3 with 42% resistance index in group c tolerant, codes H11-1 and M102-20 in group d with low sensitivity and codes H11-2 and H-f in groupe sensitive and codes M1-11, M102-7 and H12-oprc in group f and very sensitive to They were lice. In addition, the indices of contamination percentage, antixenosis, antibiosis, tolerance were inversely correlated with the resistance index and the height of the tallest leaf, and the amount of chlorophyll was not correlated with the resistance index.
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