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Öğe Effect of Cutting Treatment on Seed Yield and Seed Quality of Dill(Univ Namik Kemal, 2023) Alan, Ozlem; Ilbi, HulyaDill, Anethum graveolens L., is grown in various regions of the world. It has been used as vegetable and medicinal plant since ancient times. Seed quality is important in dill cultivation and there is limited information on the effects of cutting treatment in this species. This research was carried out to find out the effect of cutting treatment on phenological traits, seed yield and quality of dill at Ege University, Izmir, during 2016-2018. The experiments were carried out in the randomized complete block design with three replications, comprising of cutting treatment for both spring and autumn seeding period. Significant differences were noted in the flowering period, seed yield and quality attributes with cutting treatment for both seeding period. The obtained results showed that the days from sowing to bolting initiation were increased with cutting treatment from 51 days to 65 days in spring seeding period and from 153 days to 184 days in autumn seeding period. The plant height, number of umbels per plant, seed weight per plant were lower in the cut plants in comparison to that of uncut plants for both seeding period. The uncut plants has produced significantly higher plant height (113 cm-spring seeding period; 133 cm-autumn seeding period), number of umbels/plant (8.4-spring seeding period; 10.1-autumn seeding period) and seed weight/plant (6.4 g-spring seeding period; 10.9 g-autumn seeding period). The cutting treatment decreased germination percentage by 9.27% in the spring seeding period and by 12.13% in the autumn seeding period compared to the control plant seeds. Lower mean germination time at 20/30 degrees C (3.77 days-spring seeding period; 4.54 days-autumn seeding period) were also observed in uncut plants. Thus, it was concluded that cutting is not recommended in the vegetative stage in dill seed production as it provided lower seed yield and seed quality for both autumn and spring seed planting periods.Öğe The effectiveness of growth cycles on improving fruit quality for grafted watermelon combinations(Soc Brasileira Ciencia Tecnologia Alimentos, 2018) Alan, Ozlem; Sen, Fatih; Duzyaman, EftalTwo growth cycles per year, i.e., for early growing season (EGS) and late growing season (LGS) production, both of which are widely preferred in temperate climates, have been investigated for their effects on fruit quality attributes such as appearance; firmness; the content of total soluble solids, sugars, and total phenol; and antioxidant activity. Two watermelon [Citrullus lanatus (Thunb.) Matsum and Nakai] cultivars (cv. 'Anthem F-1' and cv. 'Crimstar F-1') were used as scion. Two C. maxima x C. moschata hybrids (cv. 'Shintoza F90' cv. 'Obez') and one Lagenaria siceraria rootstock cv. 'Macis' were used as rootstock. Self-rooted and self-grafted plants were used as controls. EGS resulted in a reduction of fruit shape index, rind thickness, juice pH, hue values, and glucose content as compared to LGS for both the cultivars. On the other hand, total soluble solids of cv. 'Crimstar', fructose of cv. 'Anthem', and the antioxidant activity of cv. 'Anthem' increased. The total phenol content was unaffected by the scion/rootstock combinations or growth seasons for both the cultivars. Most of the fruit quality attributes increased when a specific rootstock/scion combination and growth season was used and these combinations may change in relation to cultivar. It is important to evaluate and select suitable scion/rootstocks for each growth condition created by ecology and growth cycle to guarantee high fruit quality.Öğe Genetic Variability and Association Analysis of Some Quantitative Characters in Sweet Corn(Univ Agr Sci & Veterinary Med Cluj-Napoca, 2013) Alan, Ozlem; Kinaci, Gulcan; Kinaci, Engin; Kutlu, Imren; Budak Basciftci, Zekiye; Sonmez, Kenan; Evrenosoglu, YaseminThe objective of this study was to determine genetic variability, heritability, genetic advance, genotypic and phenotypic correlations of yield, yield components and kernel quality traits in seven sweet corn varieties. The present research was conducted during 2009 and 2010 growing season in Eskisehir, midwestern Turkey. The trials were set up in randomised complete block design with four replications. Analysis of variance observed highly significant differences for all the examined traits in both years. Sugar content, soluble solid concentration and number of leaves per plant revealed the highest genotypic and phenotypic coefficient of variation values. The high heritability estimates coupled with high generic advance for sugar content, soluble solid concentration and starch content. Positive correlations were revealed between yield (husked, dehusked and fresh kernel) and yield components except plant height and 1000 seed weight. Negative correlations were found between kernel quality and yield and yield related traits. It can be concluded that, husked ear weight and dehusked ear weight could be used as the main criteria for yield improvement. It should be unfeasible to develop sweet corn varieties with satisfactory yield potential and improved kernel quality for the different sweet corn markets.Öğe Growing season climate affects phenological development, seed yield and seed quality of dill (Anethum graveolens)(Ista-Int Seed Testing Assoc, 2022) Alan, Ozlem; Kanturer, Damla; Powell, Alison A.; Ilbi, HulyaDill seed production was investigated over two seasons, comprising a spring growing cycle (SGC) and an autumn growing cycle (AGC). The effects of growing cycle on phenological traits, yield and quality of dill seeds formed on different umbels of the mother plant were investigated. Significant differences were noted in the flowering period, seed yield and quality parameters. The SGC resulted in a shorter time from sowing to bolting and flowering initiation compared with the AGC. Plant height, number of umbels/plant, number of umbelets/ umbel, umbel diameter, umbel length and seed weight/plant increased in the AGC. In contrast, decreased germination at 20/30??C and at 13??C, and increased mean germination time at 20/30??C in AGC indicated lower seed quality compared with SGC. Primary umbels produced the best yield and higher quality seeds, followed by the secondary umbels while tertiary umbels gave poor yield and quality seeds in both SGC and AGC. In conclusion, AGC was advisable for higher seed yield, but SGC resulted in higher seed quality compared with the AGC. This highlights the need to select a suitable growing cycle to guarantee high seed yield and quality for each seed production environment.Öğe Harvest Number and Growing Season Effects on Quality and Health Related Compounds in Parsley(Assoc Pharmaceutical Teachers India, 2017) Alan, Ozlem; Avci, Ayse Betul; Giachino, Refiye Refika AkcaliBackground and Purpose: Parsley is mostly grown outdoors and harvested seasonally. Farmers in many parsley producing countries, especially in the temperate region such as Turkey usually prefer spring sowings (summer growing season-SGS) and fall sowings (winter growing season-WGS) for open field production. Parsley can be usually harvested 4-8 times in temperate climates, if some special precautions are taken it may be 1015 times. In arid, hot and cold climate regions, 2-4 harvests can be obtained. Material and Methods: Seed material of parsley obtained from regional farmers. Two growing cycles per year, i.e. for summer growing season (SGS) and winter growing season (WGS) production and harvest number, have been investigated for their effects on quality and health promoting compounds of parsley such as dry matter content (DMC), color values, chlorophylls (Chl), vitamin C, antioxidant activity and total phenol content. Results: Statistically significant differences were identified for DMC, color values, Chl and total phenol between harvest numbers for both the growing seasons. On the other hand, vitamin C and antioxidant activity were not affected significantly by harvest numbers for both the growing seasons. DMC increased with increasing harvest numbers for only the SGS. Darkest leaves were obtained from fourth harvest for the SGS; from second harvest for the WGS. First harvest had the highest Chl 'a' + 'b' with 52.87 mg/100 g for the SGS; second harvest had the highest Chl 'a' + 'b' (40.36 mg/100 g) for the WGS. Total phenol content decreased with increasing harvest numbers for the SGS. Contrarily to the SGS, total phenol content increased slightly with increasing harvest numbers by 5% for the WGS. Conclusion: It can be concluded that depending on harvest numbers either an increase, a decrease or no effect in quality and health related compounds of parsley seemed to occur. The SGS may be taken more seriously, since it creates a better environment for the expression of different quality traits as compared to the WGS.Öğe HOW GROWING CYCLES AFFECT PLANT GROWTH AND YIELD OF GRAFTED WATERMELON COMBINATIONS(Parlar Scientific Publications (P S P), 2017) Alan, Ozlem; Duzyaman, Eftal; Sen, FatihGrafting is an alternative approach to reduce crop damage resulting from soil-borne pathogens and increase plant abiotic stress tolerance, which in turn increases crop production. There is usually consensus among researchers that grafting watermelons improve most of the vegetative growth and yield characteristics. On the other hand, there are still some differences in the literature as to the effects of grafting on some growth characteristics such as flowering and fruit ripening date. Two growing cycles per year, i.e. for early growing season (EGS) and late growing season (LGS) production, both of which are widely preferred in temperate climates have been investigated for their effects on plant growth and yield parameters such as main stem length, shoot dry weight, root length, number of days male and female flower formation, fruit ripening date and yield attributes. Two watermelon (Citrullus lanatus (Thunb.) Matsum and Nakai) cultivars (cv. 'Anthem F-1' and cv. 'Crimstar F-1') were used as the scion. Two C. maxima x C. moschata hybrids (cv. 'Shintoza F90' cv. 'Obez'), and one Lagenaria siceraria rootstock cv. 'Macis' were used as rootstocks. Self-rooted and self-grafted plants were used as control. EGS resulted in a reduction of main stem length, number of lateral stems, number of leaves, shoot dry weight and root length. On the other hand, number of days first male and female flower formation and number of days first ripe fruit increased comparing to LGS in both cultivars. However, some interactions between the growing season and the used cultivar also seem to exist. EGS reduced root dry weight of cv. 'Crimstar' but increased fruit number and fruit yield per plant of cv. 'Anthem'. Some of the plant growth and yield attributes increased when a specific rootstock-scion combination and growing cycle used. Neither the vigorous hybrids of C. maxima x C. moschata (represented by 'Shintoza' and 'Obez') nor Lagenaria siceraria represented by 'Macis' could be categorized as having constantly superior plant growth and yield traits for at least one of the cultivars in at least one of the field trials. It is important to evaluate and select suitable rootstock scion for each growing condition created by ecology and growing cycle, to guaranty high vegetative growth and yield.Öğe Kernel Quality of Some Sweet Corn Varieties in Relation to Processing(Univ Agr Sci & Veterinary Med Cluj-Napoca, 2014) Alan, Ozlem; Kinaci, Gulcan; Kinaci, Engin; Basciftci, Zekiye Budak; Sonmez, Kenan; Evrenosoglu, Yasemin; Kutlu, ImrenThe quality characteristics (dry matter content, soluble solid concentration, kernel colour, sugar, starch and protein content) of fresh, frozen and canned kernels of seven sweet corn varieties ('Lumina', 'Merit', 'Sunshine', 'Jubilee', 'Challenger', 'Yellow Baby' and '2201') were studied. The present research was conducted during 2009 and 2010 in Eskisehir, Midwestern Turkey. The trials were set up in randomised complete block design, with four replications. Ears were harvested and randomly selected for analysis as fresh, frozen and canned. Dry matter content ranged from 34.2% ('2201') to 39.5% ('Yellow Baby), soluble solid concentration from 16.3% ('2201') to 27.4% ('Yellow Baby'). The sugar content of fresh kernels was higher than other treatments (frozen and canned) for all varieties. The starch content of the varieties was decreased after processing, except in 'Yellow Baby'. Fresh, frozen and canned sweet corn kernels had similar protein contents; the highest protein content was obtained, for all treatments, from 'Challenger', and it maintained its higher protein content after processing. '2201' had the highest sugar and the lowest starch content for fresh, frozen and canned varieties. When compared on a kernel basis, sweet corn marketed as fresh, frozen or canned, it may be feasible to select varieties for different sweet corn markets.Öğe Leaf phenolic content of some squash rootstocks used on watermelon (Citrullus lanatus (thunb.) Matsum and Nakai) growing and phenolic accumulation on grafted cultivar(Academic Journals, 2010) Evrenosoglu, Yasemin; Alan, Ozlem; Ozdemir, NilayIn this study, phenolic compounds were identified in the leaves of grafted and non-grafted watermelon (Citrullus lanatus (Thunb.) Matsum and Nakai) plants and squash rootstocks. The watermelon cultivar 'Crispy' was grafted onto hybrids of C. maxima x C. Moschata, 'TZ-148' and 'RS-841', and Lagenaria siceraria cv. '64 - 18'. The experiments were conducted in a randomized complete blocks design in two time periods. Non-grafted plants were used as the control. Some important differences were detected for the contents of the phenolic compounds during the growing periods such as kaempferol accumulates in the leaves of grafted and non-grafted watermelon plants and rootstocks. Kaempferol contents of the rootstocks were found to be higher than the grafted and non-grafted watermelon plants. Plants grafted on 'TZ-148' or 'RS-841' had higher phenolic content than the others.Öğe Single radicle emergence count for predicting vigour of marigold (Tagetes spp.) seed lots(Ista-Int Seed Testing Assoc, 2020) Ilbi, Hulya; Powell, Alison A.; Alan, OzlemThis study was carried out to determine whether a single radicle emergence count (RE) during germination can be used for vigour assessment to estimate field emergence of marigold (Tagetes spp.) seed lots. Six marigold seed lots (Tagetes erecta and T. patula) with normal germination above 75% were germinated using the standard ISTA germination test and radicle emergence (production of 2 mm radicle) counted at regular intervals from 25 to 169 hours. The seed lots were also sown in the field with final seedling emergence assessed after 25 days. Seedling emergence was highly correlated with the radicle emergence count after 49 and 66 hours germination (r = 0.90 and r = 0.91, respectively; P < 0.01) but not with germination percentage (r = 0.26). Thus, the radicle emergence counts at 49 and 66 hours accounted for 81 or 83% of the variation in field emergence, respectively. The results indicate that a 49- or 66-hour count of RE during germination could be used as a vigour test to estimate field emergence for marigold seed lots.
