Browsing by Author "Kazankaya, A"

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Changing of Iaa (indol-3 Acid) Content at Different Organs of Walnut (Juglans Regia L) After Grafting
(international Society Horticultural Science, 1997) Sen, SM; Kazankaya, A; Testereci, H; Yoruk, IH
In this study, Walnut seedlings (Juglans regia L.) were grafted on dormancy period and placed into controlled conditions with 26 +/- 2 degrees C temperature and 60-70% humidity. IAA changes in shoot of graft, root and graft area were measured in 1, 14, 21, 28, 35, 42 and 49th days following grafting by high performance liquid chromatography (HPLC). IAA levels in the shoot of graft was maximum (251 ng/g) at the 21 st day, and minimum (59 ng/g) at the 49 th days. The levels of IAA of graft area were maximum (218 ng/g) at the 14 th day, and minimum (53 ng/g) at the 49th days. IAA concentration in roots were highest (213 ng/g) at the 14 th day later and minimum (42 ng/g) at the 49 th day. IAA levels showed rapid increase for 3 weeks in the shoot of graft and for 2 weeks in the root, and the graft area. IAA concentration had the decreasing and parallel tendency with each other after 21 th day.
Compositional Changes of Fatty Acids During the Development of Kernel of Yalova-1 and Yalova-4 Walnut Cultivars
(international Society Horticultural Science, 2001) Koyuncu, MA; Yarilgac, T; Kazankaya, A; Koyuncu, F; Küçük, M; Sen, SM
Changes of oil contents and fatty acids composition during the development of kernels of Yalova-1 and Yalova-4 walnut varieties were investigated. Samples were taken from trees by 20 days intervals in this period and analysed. Oil contents of cultivars increased as parallel to the kernel development. These increases were statistically significant (P <0.05). Palmitic (16:0) and stearic (18:0) acid contents have decreased as kernels develop. The decreases of palmitic acid contents were statistically significant, but stearic (P <0.05). Oleic (18:1) acid increased regularly and reached maximum level at the harvest date. Linoleic (18:2) and linolenic (18:3) acid contents decreased during the fruit development period. The changes of these acid contents were statistically significant except linoleic acid of Yalova-4 (P <0.05).
Effect of Iba on Rooting of Rosa Canina Hardwood Cuttings From Lake Van Region, Turkey
(international Society Horticultural Science, 2005) Kazankaya, A; Yörük, E; Dogan, A
In this study, rooting capacity was investigated for some genotypes of Rosa canina L., growing in four districts in the Lake Van Region in eastern Turkey. Hardwood cuttings were collected in November, December, January and February and rooted in perlite medium, using 0, 1000, 2500, 5000 or 10000 ppm IBA (3-indolebutyric acid). Highest rooting (65-70%) was obtained in cuttings collected in November and treated with 2500 ppm IBA, whereas cuttings collected in February and treated with 1000 ppm IBA showed the lowest rooting (2.5%). The internal IBA levels of November-cuttings treated with 2500 ppm were determined by high performance liquid chromatography (HPLC) after rooting, reaching a maximum of 1.525 mu g/g at 30 days after rooting.
An Evaluation on Yield Potential in Walnut (Juglans Regia L.)
(international Society Horticultural Science, 2000) Yarilgaç, T; Sen, SM; Balta, F; Kazankaya, A
In this study, yield potentials of Juglans regia selections were determined during two years 1996 and 1997 in the district Van (Turkey). A formula based on productions (%) and average numbers of pistillate flowers on terminal and lateral shoots was used. For this aim, yield index scores belonging to promising selections in terms of fruit characteristics were calculated. Yield potentials were classified in four groups low, middle, good and very good based on these scores. Consequently, five selections were considered as very good for yield potential.
Lateral Fruitfulness on Turkish Standard Walnut Cultivars and Promising Selections (Juglans Regia L.)
(international Society Horticultural Science, 2001) Sen, SM; Balta, F; Koyuncu, MA; Koyuncu, F; Yarilgac, T; Kazankaya, A
Included in the species Juglans regia L. in Anatolia with rather rich walnut populations from seed origin, there are a lot of walnut cultivars and promising selections with high nut quality and lateral fruit bearing characteristic. When compared to commercial walnut cultivars of the world, the results from studies carried out in different places of Anatolia such as Marmara Region, Northeast Anatolia Region, East Black Sea Region, Eastern Mediterranean Coastal areas, the districts Darende, Gurun, Tokat, Cameli, Bozkurt, Adilcevaz, Catak, Ahlat, Adiyaman, Sanliurfa, Mardin, Gevas, Ermenek, Posof, Ikizdere, Bahcesaray and Yalova until today can be said to be promising. The researches concerning some cultivars and selections currently continue. This paper deals with the results in relation to lateral fruitfulness and valuable fruit characteristics of the cultivars and promising selections from different areas of Anatolia.
Pomological Traits of Apricots (Prunus Armeniaca L.) Selected From Bitlis Seedling Population
(Amer Pomological Soc, 2002) Kazankaya, A
The native apricot (Prunus armeniaca L.) germplasm of Bitlis province and its districts situated in the East Anatolia of Turkey was examined during 2000 and 2001. From the native genotypes twenty-eight genotypes were selected for breeding efforts, and their fruit and flowering traits were recorded with compared to those of standard cultivars 'Hacihaliloglu', 'Kabaasi' and 'Hasanbey'. Selected genotypes had fruit weight between 29.1 g and 60.3 g, soluble solids between 8.2% and 21.6% and acidity between 0.54% and 1.77%. Three standard cultivars had fruit weight between 30.7 g and 43.1 g, soluble solids between 20.2% and 22.4% and acidity between 0.21% and 0.62%. The fruit weight was over 45 g in five selections (BTL-20, BTL-45, BTL-49, BTL-50 and BTL-51) that had higher fruit weight than standard cultivars. The content of soluble solids was higher than 20% in two selections (BTL-49 and BTL-51). Standard cultivars usually had higher soluble solids and lower acidity than selected genotypes. The majority of genotypes had acidity lower than 1%. The fruit size ranged from small (fruit weight between 29.1-37.6 g) to medium (fruit weight between 45.1-60.3 g). The first bloom in late April and full bloom in early May occurred. In March of both years, extreme temperature fluctuations caused damage to flower buds and subsequent yield reductions. The harvest season usually was mid-August. The results indicated valuable native apricot germplasm of the district.
Promising Apricot Genetic Resources From the Lake Van Region
(Kluwer Academic Publ, 2002) Balta, F; Kaya, T; Yarilgaç, T; Kazankaya, A; Balta, MF; Koyuncu, MA
This study was conducted in order to select valuable genetic resources (Prunus armeniaca L.) of apricot in Gevas, situated on Lake Van Region (East Anatolia) of Turkey during 1998 and 1999. All population consisted of native apricot genotypes were examined with respect to fruit and tree characteristics for two years, and twenty-eight genotypes were selected for future breeding efforts. Their flowering habit and desirable fruit characteristics were determined in comparison with 'Hacihaliloglu'. All selected apricots grown at 1700 m in the region were not affected by late spring frosts. In the majority of genotypes, bud break, first flowering, full flowering and end of flowering occurred a few days earlier than the cultivar 'Hacihaliloglu' in both years, whereas, harvest was later than that. Some selections produced larger fruits than 'Hacihaliloglu'. All genotypes showed a range of 25-48 g for fruit weight, 11-21% for soluble solids and 0.19-2.90% for acidity. Soluble solids content was more than 20% in three selections (G12, G29 and G33), and the acidity was lower than 1% in five genotypes (G2, G12, G27, G29 and G33). Selections with attractive fruit colors had small to medium-sized fruits. Many genotypes were evaluated as promising for further breeding efforts.
Promising Native Walnut Genotypes (Juglans Regia L.) of the East Black Sea Region of Turkey
(Amer Pomological Soc, 2001) Balci, I; Balta, F; Kazankaya, A; Sen, SM
In order to select promising native walnut genotypes, characteristics of trees situated on the Black Sea Region of Turkey during 1997 to 1999 were examined with regard to fruit properties. The walnut population consisted of 4200 seedling trees. Fifteen native genotypes selected were evaluated as promising. The genotypes exhibited a range of 11.8-18.7 g for inshell fruit weight, 6.25-9.23 g for kernel weight, 48-60% for kernel percentage, 1.02-1.75 mm for shell thickness, 65-100% for terminal fruitfulness and 30-75% for lateral fruitfulness.
Relations Between Graft Success and Structural Hormones on Walnut (Juglans Regia L)
(international Society Horticultural Science, 1997) Kazankaya, A; Sen, SM; Tekintas, FE
In this study, in walnuts (Juglans regia L.) grafted at one month intervals during one year, the relations between the graft success and the levels of structural hormones in the scions were evaluated. As for the months, the graft success was the highest in February (100 %), while it was lowest in June (54 %). As a consequence of the biological, it was determined that the structural hormones in the scions changed by months, but they generally became dense in the 4th, 7th, 9th and 10th bands. The effective inhibitions were not significantly recorded in none of the months. Finally, any relation between the graft success and the levels of the structural hormones was not considered.
Relations Between Phenolic Compounds and Graft Success in Walnut (Juglans Regia L)
(international Society Horticultural Science, 1997) Karadeniz, T; Kazankaya, A; Balta, F; Sen, SM
In the study, the relations between the graft success and the phenolic contents of the scions, which will be grafted, on 9 walnut cultivars (Juglans regia L.) were discussed. III addition, effects of structural hormones in the scions belonging to each cultivar were biologically tested with coleoptile developments. Consequently, a negative relation between the graft success ratios and the phenolic contents of the scions was found.
Some Nut Properties of Walnuts (Juglans Regia L.) of Edremit Country
(international Society Horticultural Science, 2001) Kazankaya, A; Koyuncu, MA; Koyuncu, F; Yarilgac, T; Sen, SM
This study was carried out between 1997 and 1998 in Edremit. As a result of evaluations, 38 selections were regarded as promising. Most selections had fruit weights over 11-12 g, kernel weights over 6-7 g, kernel percents over 45 and light colored kernels.
Some Promising Walnut Selections (Juglans Regia L.)
(international Society Horticultural Science, 2001) Yarilgac, T; Koyuncu, F; Koyuncu, MA; Kazankaya, A; Sen, SM
This study was carried out in the district of Gevas located in the Lake Van Region (East Anatolia) between the years of 1995 and 1998. In the study, it was aimed to determine the promising walnuts and to preserve as valuable genetic sources (Juglans regia L.) within existing population, all of which consisting of seedling trees. Thus, walnut preselections on which initial observations and evaluations were done before were investigated for long time so that they could be better illustrated. As a result of observations for four years, valuable selections were studied, and they were regarded as promising. Selections had nut weight between 10.38 and 17.04 g, kernel weight between 5.85 and 7.88 g, shell thickness between 0.86 and 1.75 mm, kernel percentage between 45.09 and 59.27 %, oil content between 55.74 and 68.52 %, and protein content between 16.21 and 21.86 %. In addition, nut dimensions, kernel color, lateral pistillate flowering percentages, and flowering characteristics etc. were also evaluated.