| تعداد نشریات | 24 |
| تعداد شمارهها | 877 |
| تعداد مقالات | 7,848 |
| تعداد مشاهده مقاله | 14,548,890 |
| تعداد دریافت فایل اصل مقاله | 12,276,860 |
Comparison of Utah and Positive Utah models for determining of chilling and heat requirements of some olive cultivars | ||
| Iran Agricultural Research | ||
| مقاله 4، دوره 38، شماره 1، دی 2019، صفحه 23-34 اصل مقاله (254.86 K) | ||
| نوع مقاله: Full Article | ||
| شناسه دیجیتال (DOI): 10.22099/iar.2019.5286 | ||
| نویسندگان | ||
| M. Rahemi* ؛ N. Navid Pour؛ S. Sedaghat | ||
| Department of Horticultural Science, College of Agriculture, Shiraz University, Shiraz, I.R. Iran | ||
| چکیده | ||
| Determining of chilling and heat requirements of olive cultivars growing in Fars Province is important for the selection of cultivars that will exhibit satisfactory growth and development. The purposes of this study were determining the chilling and heat requirements of olive and comparison of Utah and Positive Utah Chill unit (PCU) models for determining the chilling requirements of olive cultivars. In this regard, chilling requirement of flower buds of ‘Fishomi’, ‘Dezful’, ‘Zard’, ‘Dehghan’ and ‘Shiraz’ cultivars were determined. Cuttings of these cultivars were taken during autumn when the mean temperature fell below 12ºC. Cuttings were kept at 5 ºC for periods of 0, 100, 200, 300, 400, 500, 600, 700, 800, 900, 1000, 1100, 1200, 1300, 1400, 1500, 1600, 1700 and 1800 h. Results indicated that the chilling requirements of ‘Fishomi’, ‘Dezful’, ‘Zard’, ‘Dehghan’ and ‘Shiraz’ were 900, 1000, 900-1000, 1000-1100 and 900 h, respectively. Results also showed that the PCU unit model was more efficient than the Utah for estimating chilling requirements under subtropical field conditions. Heat requirements from the end of dormancy to full bloom stage of these five olive cultivars were estimated as 199.2, 272.1, 245.2, 245.2, 321 growing degree days (GDDs), respectively. It was observed that ‘Fishomi’ had the lowest chilling requirement and ‘Dehghan’ obtained the highest one. Hence, ‘Fishomi’ can be recommended for cultivation in subtropical regions. | ||
| کلیدواژهها | ||
| Bud break؛ Cutting؛ Flower bud؛ Growing Degree Days | ||
| مراجع | ||
|
Alcala, A., & Barranco, R. D. (1992). Prediction of flowering time in olive for Cordoba olive collection. Horticultural Science, 11, 1205-1207.
Antonio, M., Martinez, T., & Antonio, J. (2009). Metabolic activity of low chilling grapevine buds forced to break. Thermochimica Acta Science, 481, 28–31.
Arora, R., & Tanino, K. (2003). Induction and release of bud dormancy in woody perennials: a science comes of age. Horticultural Science, 38, 911-921.
Citadin, I. M., Rseria, C. B, Herter, F. G, & Baptista da Silva, L. (2002). Heat requirement for blooming and leafing in peach. Horticultural Science, 36, 305-307.
Couvillon, G. A, & Erez, A. (1985). Influence of prolonged exposure to chilling temperatures on bud break and heat requirement for bloom of several fruit species. Journal of American Society and Horticultural Science, 110, 47-50.
Galan, C., Garcia-Mozo, H., Vazquez, L., Ruiz, L., Diaz de la Guardia, C., & Trigo, M.M. (2004). Heat requirement for the onset of the Olea europaea L. pollen season in several site in Andalusia and the effect of the expected future climate change. International Journal of Biometric, 45, 8-12.
Hackett, W. P., & Hartman, H. T. (1963). Morphological development of olive as related to low temperature requirement for inflorescence formation. Botanical Gazette, 124, 383-387.
Hackett, W. P, & Hartman, H. T. (1964). Inflorescence formation in olive as influenced by low temperature, photoperiod and leaf area. Botanical Gazette,125, 65-72.
Linsely_Noakes, G .C., Louw, M., & Allan, P. (1995). Estimating positive utah chill unit using daily maximum and minimum temperature. South African Society and Horticultural Science, 5(1), 19-22.
Sibbet, G. S., & Martin, G. C. (1994). Olive production manual. L. Ferguson (Ed.). University of California.
Swartz, H. J, & Powell, L. E. (1981). The effect of long chilling requirement on time of bud break in apple cultivars. Acta Horticulturae, 120, 173-178.
McMaster, G. S., & Wilhelm, W. W. (1997). Growing degree-days: one equation, two interpretations. Agricultural and Forest Meteorology, 87(4), 291-300.
Partridge, C. J., & Allan, P. (1980). Further studies on the rest period of low chill peach cultivars. Crop Production, 9, 191-195.
Rallo, L, Martin GC., & Lavee, S. (1981). Relationship between abnormal embryo sac development and fruitfulness in olive. Journal of American Society and Horticultural Science. 106, 813-817.
Richardson, E. A., Seeley, S. D., & Walker, D. R. (1974). A model for estimating the completion of rest for ‘Redhaven’ and ‘Elberta’ peach trees. Horticultural Science. 9, 331-333.
Tabuenca, M. C. and J. Herrero. 1965. Influencia de la temperatura en la época de floración de frutales. Anales Aula Dei 8(1), 115-153.
Warmmud, M. R, & Kurmme, J. (2005). A chilling model to estimate rest completion of erect blackberries. Horticultural Science, 40, 1259-1262.
Westwood, MN, 1993. Temperate Zone Pomology (1st ed.). OrganUSA. | ||
|
آمار تعداد مشاهده مقاله: 1,200 تعداد دریافت فایل اصل مقاله: 1,207 |
||