جستجوی مقالات مرتبط با کلیدواژه "رقم تجاری" در نشریات گروه "زراعت"

In order to increase time interval of the fruit supply and to produce variability and benefit from the marketable characteristics of superior apricot germplasm, six promising genotypes selected among native genotypes of East Azerbaijan province, Iran were evaluated from 2004 to 2018. In these studies, the generative and vegetative characteristics of these genotypes were assessed during the implementation of seven research projects and studied genotype were compared with the cv. Ordubad 90 (as control). The results showed that fruit of genotype No. 190 was ripened at least 20 days later than control. Although the mean differences of fruit volume and weight of this genotype were non-significant with control but its flesh firmness in the physiological ripening stage was significantly more than the control (3 kgcm-2). Also, a significant difference was observed between the weight ratio of fruit/stone of genotype 190 and control having ratios of 25.6 and 16.6, respectively. The fruit of this genotype with 25% moisture reduction was dried ideally and its organoleptic characteristics remained stable for at least one year in cold storage conditions. Studies also revealed that the superiority of the characteristics of yield efficiency, relative coloring of fruit, ripening date, storage period, shelf life and transportability of genotype No. 190 in comparison with control and therefor this genotype was released and introduced as "Sahand 97" commercial name to the Iran's horticultural community.

In the present study, seven native and five introduced pear (Pyrus communis L.) cultivars were evaluated for fruit morphological traits and biochemical characteristics including total soluble solids, total titratable organic acids, acidity of juice, sclereid cell density and size, ascorbic acid and organoleptic attributes. The results showed that in fruit morphological evaluations, the most important distinguishing traits were general shape and fruit size, length: diameter ratio, position of maximum diameter, fruit side profile, background color and size of lentils in ground color, size of over color area and the characteristics of fruit stalk. Also, three very similar cultivars, Coscia, Louis Bonne and Spadona, showed that these similarities has caused synonym and homonym names for them in some nurseries. However, they were distinguishable by the fruit characteristics including size, thickness and curvature of stalks. Total soluble solids contents of fruit varied from 14 to 17.4%, and the lowest was observed in Beurre Giffard cultivar and the highest in Felestini. Total titratable acid content of the fruit also varied between 3.4 mg g-1 of fresh weight in cv. Dargazi, cv. Louis Bonne and cv. Spadona and 11.4 mg g-1 of fresh weight in cv. Domkaj. In general, the highest overall score of fruit quality in organoleptic evaluations belonged to cv. Louis Bonne, which due to its excellent quality at the ripening time and other characteristics such as compatibility with the clonal rootstocks and fire blight tolerance has become the most popular commercial pear cultivar in Iran, in recent years.