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Crop Breeding Journal، جلد ۱۳، شماره ۲، صفحات ۱-۱۱
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عنوان انگلیسی Phenology and self-(in)compatibility of some apricot (Prunus armeniaca L.) promising genotypes
چکیده انگلیسی مقاله Self-incompatibility and late spring frosts are the most important limiting factors in Asian apricot (Prunus armeniaca L.) production. Therefore, it is important to develop late-blooming and self-compatible genotypes in apricot breeding programs in order to increase yield, and in some cases to eliminate the need for pollinizers. This study was carried-out to evaluate the phenology and self-(in)compatibility in cv. Shahroudi and twenty-five apricot promising genotypes under Karaj environmental conditions during 2019-2020 growing seasons. Apricot genotypes flowered from early to late March (3rd to 26th March), and fruits harvested from early to late June. Genotype 499 was identified as a late blooming genotype. In vitro pollen germination varied from 0.0 to 74.0%, and showed no correlation with fruit set. Fruit set studies showed 17 genotypes were self-compatible (fruit set of 5.2 to 44.2%). The fluorescent microscopic examinations of the pollen tube growth in the style confirmed 11 genotypes as self-compatible, with at least one pollen tube reaching the ovary. Combining the results of the three primers designed from the first and second Prunus S-RNase introns, 11 S-alleles were identified, among which S6, Sc and S2 were the most frequent. Two late-bloom and self-compatible genotypes 447 and 534 were selected, and several late-bloom or self-compatible genotypes were identified which can be used in future apricot breeding programs.
کلیدواژه‌های انگلیسی مقاله Apricot, fluorescence microscopy, fruit set, Pollen germination, S-allele
نویسندگان مقاله K. Oroji Salmasi |
Department of Horticulture, Karaj Branch, Islamic Azad University, Karaj, Iran.

R. Gharesheikhbayat |
Temperate Fruits Research Center, Horticultural Science Research Institute, Agricultural Research, Education and Extension Organization, Karaj, Iran.

S. M. Miri |
Department of Horticulture, Karaj Branch, Islamic Azad University, Karaj, Iran.

M. Pirkhezri |
Temperate Fruits Research Center, Horticultural Science Research Institute, Agricultural Research, Education and Extension Organization, Karaj, Iran.

D. Davoodi |
Department of Nanotechnology, Agricultural Biotechnology Research Institute of Iran, Karaj, Iran.

نشانی اینترنتی https://cbjournal.areeo.ac.ir/article_128912_1c7d51b2ae299358beb4dd9a5295999a.pdf
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