-Moscow, Uzbekistan [in Russian] Badenes, M.L. Asins, M.J. Carbanel, E.A. Glacer, G. 1996 Genetic diversity in apricot, Prunus armeniaca, aimed at improving resistance to plum pox virus Plant Breed. 115 133 139 Bailey, C.H. Hough, L.F. 1975 Apricots, p. 367–384. In
and cultivar ( Prunus armeniaca L.) used in all of the experiments were fresh apricots harvested. Fruits were harvested at deep orange 1 (fully ripe) in Malatya, Turkey ( Table 1 ). At each harvest date, we formed random lots, each with 30 fruits
Apricot ( Prunus armeniaca L.) is one of the important fruit trees originating from China, and it is highly appreciated by consumers because of its early ripening, gorgeous colors, and nutritional content ( Zhang and Zhang, 2003 ). Apricot
Shoot tip and single-node cutting explants of `Hamawy' and `El-Amar' apricot cultivars were initiated from forced shoots of field-grown, virus-free trees. Explants were cultured on Murashige & Skoog (MS) Nitsch & Nitsch and Anderson media. Different modifications of MS medium were also evaluated. Antioxidant pretreatment reduced phenolic compounds and decreased necrosis. Modified MS was the best medium for plantlets regeneration, with positive effectiveness of adenine sulfate addition to the modified MS. Shoot multiplication was best on 2.0 mg·L–1 BAP and 1.0 mg·L–1 thidiazuron (TDZ). Also, half-strength MS medium was superior for shoot elongation Surface coverage, 16 hours light/8 hours dark cycle, and 2.0 mg·L–1 IBA induced good rooting. Rooted plantlets were successfully acclimated ex vitro.
Abstract
Effects of freeze injury to the various tissues of young developing fruits were studied anatomically and illustrated by photomicrographs. Samples had been obtained just prior to the freeze so that normal and injured tissues can be compared.
In the apricot, disrupted tissue appeared in the following areas: vascular bundle tissues in the mesocarp, general destruction of the endocarp, ovullary tissue destruction with separation of the outer and inner integuments and a distinct injury occurring in the chalazal end of the ovule.
The same general pattern of tissue injury occurred for the sweet cherries as that which was evident in the apricot. However, injury at the base of the fruit was not as intense as that of the apricot. The ‘Stark Gold’ cherry, which was 2-3 days later in development than the ‘Starting Hardy Giant’, was less severely injured because the floral cup base provided some protection. It also had 4-6 hypodermal layers as compared to 2 layers in the ‘Starking Hardy Giant’.
Abstract
Apricots on branches sprayed with Ethrel at the beginning of pit hardening abscised, whereas similar treatment with 2,4,5-T stimulated fruit growth and decreased drop. In the stem, gum ducts were formed in the xylem after treatment with Ethrel but not with 2,4,5-T, both at 100 ppm concentrations. Both Ethrel and 2,4,5-T stimulated cambial activity in petioles and midveins, thus increasing phloem and xylem tissues. Both growth regulators induced tylosis formation in petiole xylem. 2,4,5-T treatment caused increase in petiole diameter and leaf blade thickness, through increasing endopolyploidy and thus cell size in ground tissue of the petiole, and in mesophyll, epidermis and vascular bundle sheathes in the leaf blade. Ethrel caused little if any increase in cell size in those tissues, and therefore no obvious increase in petiole diameter and leaf blade thickness.
( Jiang et al., 2019 ). According to different taxonomic systems, there are six Prunus L. species that are recognized by most scholars: P. armeniaca , Prunus sibirica L., Prunus mandshurica (Maxim.) Skv., Prunus holosericea (Batal.) Kost., Prunus
species. Some Chinese pomologists still put plum, apricot, cherry, and peach into separate genera, as Prunus L., Armeniaca Mill., Cerasus Mill., and Amygdalus L., respectively ( Yu, 1984 ), and refer to the plum genus as the “small Prunus ,” but
breeding in Turkey and other European countries. Literature Cited Akin, E.B. Karabulut, I. Topcu, A. 2008 Some compositional properties of main Malatya apricot ( Prunus armeniaca L.) varieties Food Chem. 107
.1021/jf8005728 Aubert, C. Chanforan, C. 2007 Postharvest changes in physicochemical properties and volatile constituents of apricot ( Prunus armeniaca L.). Characterization of 28 cultivars J. Agr. Food Chem. 55 8 3074 3082 10.1021/jf063476w Beckles, D