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This research was carried out in order to identify, collect and morphologically evaluate the germplasm of wild Hawthorn of Iran, to preserve the genetic reserves, to create the first collection of this genus in order to obtain rootstocks tolerant to adverse water and soil conditions for pear and quince fruit trees and from the fall of 2019 to 2023. drowned Paying attention to the great potential of this genus in resisting drought stress caused by lack of irrigation and calcareous soils as a basis for seeded fruit trees shows the importance of identifying and productivity of species of this genus. For this purpose, during the spring, summer and autumn seasons, in the different phenological growth stages of the plant, from the gardens and natural habitats of Isfahan, Chahar Mahal & Bakhtiari, kohkiliyeh & boriahmad. Alborz, Razavi Khorasan, North Khorasan, West Azerbaijan, Kurdistan, Gilan and Qazvin, based on the Iran flora guide and the information of the visiting researchers, and according to the IPGRI descriptor of the species identification key, more than 30 distinct morphological traits were evaluated and recorded. Their seeds, fruits and cuttings were sampled and sent to Isfahan for identification and grafting on the seed base of Valik Karmaz. The samples were transplanted in the treasury. Then transplanted seedlings were planted in the form of a collection in Semiram station. Based on the species monograph, 13 species were identified.
C. azarolus var. pontica, C. azarolus var. assadii, C. orientalis, C. atrosanguinea, C. azarolus var. aronia, C. pentagyna subsp. Pentagyna, C. microphylla var. microphylla, C. curvisepala, C. pseudoheterophylla subsp. Turkestanica, C. meyeri, C. pseudoheterophylla subsp. Pseudoheterophylla and C. ambigua.
According to the results of this research, C. azarolus var. pontica and C. azarolus var. assadii is recommended for edible consumption and introduction of the variety due to its large and marketable fruit size.
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