ارزیابی رشد نهال‌های نسل اول (F1) دورگ‌های بید در خزانه آزمایشی کرج

نوع مقاله: علمی- پژوهشی

نویسندگان

1 استادیار پژوهش، مؤسسه تحقیقات جنگلها و مراتع کشور

2 مربی پژوهش، مؤسسه تحقیقات جنگلها و مراتع کشور

3 کارشناس ارشد پژوهش، مؤسسه تحقیقات جنگلها و مراتع کشور

چکیده

درختان بید (Salix L.) به‌طور طبیعی در حاشیه رودخانه‌ها و دره‌ها در استان‌های کشور انتشار دارند که نقش ارزنده‌ای در حفاظت اراضی حاشیه رودخانه‌ای و تولید زی‌توده ایفا می‌کنند. هدف از پژوهش پیش‌رو ارزیابی رشد نهال‌های دورگ‌های به‌دست‌آمده از تلاقی سه گونه بید و مقایسه آنها با والد بود. نهال‌های دورگ به‌دست‌آمده از تلاقیS. alba x S. alba ، S. alba x S. fragilis و S. alba x S. excelsانتخاب و در فروردین 1391 به مزرعه منتقل شدند. در مرحله اول، دورگ‌های برتر براساس ویژگی‌های رویشی انتخاب شدند و در مرحله دوم ارزیابی نهال‌های دورگ به‌همراه نهال‌های والد آنها از طریق کاشت قلمه انجام شد. صفات رویشی در هر دو مرحله شامل زنده‌مانی، قطر در ارتفاع 30 سانتی‌متری از زمین، ارتفاع، تعداد شاخه‌های بلندتر از نیم متر و ویژگی کیفی ساقه بود. نتایج نشان داد که هفت دورگ از تلاقی S. alba x S. alba، هفت دورگ از تلاقی S. alba x S. excelsو دو دورگ از تلاقی S. alba x S. fragilisاز رشد قطری و ارتفاعی و نیز فرم ساقه مناسبی برخودار بودند. میانگین رشد قطری و ارتفاعی دورگ‌های کاشته‌شده از طریق قلمه نشان داد که دو کلن دورگ S. alba x S. albaبا بیشتر از 7/1 سانتی‌متر قطر و دو متر ارتفاع بیشترین رشد را نسبت به والد داشتند. همچنین چهار کلن دورگ از تلاقی S. alba x S. excelsو یک دورگ از تلاقی S. alba x S. fragilisاز نظر رشد در گروه اول قرار گرفتند.

کلیدواژه‌ها


عنوان مقاله [English]

Growth assessment of F1 hybrid salix seedlings in Karaj experimental site

نویسندگان [English]

  • Mohsen Calagari 1
  • Rafatollah Ghasemi 2
  • Reza Bagheri 3
1 Assistant Prof., Research Institute of Forests and Rangelands, Agricultural Research, Education and Extension Organization (AREEO)
2 Senior Research Expert, Research Institute of Forests and Rangelands, Agricultural Research, Education and Extension Organization (AREEO)
3 Research Expert, Research Institute of Forests and Rangelands, Agricultural Research, Education and Extension Organization (AREEO)
چکیده [English]

Willow (Salixsp.) is one of the main trees occurring within valleys, plains and the river margins in Iran. The aim of study was to evaluate and compare the growth of willow hybrids and parents. Therefore, hybrid seedlings from S. alba (female) x S. alba (male), S. alba x S. excels and S. alba x S. fragilis crosses were planted in the field in April 2012. In first stage, superior hybrids were selected based on growth characteristics. In the second stage hybrid seedlings and parents were tested by planting cuttings (5 cuttings for each hybrid and parents) in the nursery. Growth traits such as survival rate, collar diameter, height, number of branches and stem form were measured at the end of growth season. Measuring growth characteristics of hybrids showed that 7 hybrids from S. alba x S. alba , 7 hybrids form S. alba x S. excelsa and 2 hybrids from S. alba x S. fragilis crosses were associated with straight stem form as well as the highest diameter and height growth. The average diameter and height growth of hybrid seedlings from planted cuttings cuttings showed two hybrid S. alba x S. alba crosses with the highest growth. Moreover, four S. alba x S. excelsa crosses and one seedling from S. alba x S. fragilis hybrid showed the highest height growth compared to the parents. The superior hybrids also showed straight stems. It is concluded that the superior hybrid seedlings from this study can be evaluated in the next phase of compatibility.

کلیدواژه‌ها [English]

  • Willow
  • Hybrid
  • growth traits
  • sapling
- Argus, G.W., 1986. The Genus Salix(Salicaceae) in the Southeastern United States. Systematic Botany Monographs, 170p.

- Asadi, F., Mirzaie Nodoushan, H. and Modir Rahmati, A.R., 2005. Direct and indirect effects of poplar different attributes on its yield in early growth stage. Iranian Journal of Forest and Poplar Research, 13(3): 295-311 (In Persian).

- Barigah, T.S., Saugier, B., Mousseau, M., Guittet, J. and Ceulemans, R., 1994. Photosynthesis leaf area and productivity of five poplar clones during their establishment year. Annals of Forest Science, 51: 613-625.

- Bisoffi, S. and Gullberg, U., 1996. Poplar breeding and selection strategies: 139-158. In: Stettler, R.F., Bradshaw, H.D., Heilman, P.E. and Hinckley, T.M. (Eds.). Biology of Populus and its Implications for Management and Conservation. NRC Research Press, National Research Council of Canada, Ottawa, Canada.

- Calagari, A., Modirrahmati, A.R., Ghassemi, R. and Baghery, R., 2015. Investigation of Inter and Intra-specific Hybridization between Some of Willow Species and Growth Evaluation of Hybrid Seedlings Growth in Experimental Field. Final Report of Project, Published by Research Institute of Forests and Rangelands, 30p (In Persian).

- Calagari, A., Modirrahmati, A.R., Mirzazaie Nodoushan, H., Asadi, F. and Salehishanjani, P., 2014. Investigation of Genetic Variation between Populus euphratica Clones and Production of Seed Born Seedlings from Superior Genotypes. Final Report of Project, Published by Research Institute of Forests and Rangelands, 47p (In Persian).

- FAO, 1998. Registration Form and Summary Description for a Populus L. Cultivar. International Poplar Commission, Rome, 1-6.

- Ghasemi, R., Modirrahmati, A.R. and Hemmati, A., 2002. Investigation on final stage adaptability of different poplar clones (comparative populetum) in Karaj region. Final Report of Project, Published by Research Institute of Forests and Rangelands, 62p (In Persian).

- Hemmati, A., Modirrahmati, A.R. and Maassoumi, A.A., 2007. Collecting and Identification of Willows (Salix sp.) Accessions of Iran. Final Report of Project, Published by Research Institute of Forests and Rangelands, 25p (In Persian).

- Krstinic, A., 1986. Tree-Shaped willows: 86-105. In: Poplars and Willows in Yugoslavia. Poplar Research Institute, NOVI-SAD, Yoyuslavia.

- Meneghetti, S., Barcaccia, G., Paiero, P. and Lucchin, M., 2007 .Genetic characterization of Salix alba L. and Salix fragilis L. by means of different PCR-derived marker systems. Ptant Biosystems, 141: 83-291.

- Paillassa, E., 2004. Where to find poplar cultivars for 2004-05 plantations. Forêt- Entreprise, 159: 47-51.

- Perinet, P., 2007. The poplar breeding program in Quebec: 11-12. In: Perinet, P., Perron, M. and Belanger, P. (Eds.). Popular Culture: A Collaborative Effort from Clone to Mill. Annual Meeting of the Poplar Council of Canada, Ministere des Ressources naturelle set de la Faune du Quebec, Direction de la recherché forestiere, Quebec, Canada.

- Triest, L., 2001.  Hybridization in staminate and pistil late Salix alba and S. fragilis (Salicaceae): morphology versus RAPDs. Plant Systematics and Evolution, 226: 143-154.

- Triest, L., De Greef, B., Vermeersch, S., Van Slycken, J. and Coart, E. 1999. Are Salix alba and Salix fragilis a hybrid species complex?. Plant Systematics and Evolution, 215: 169-187.

- Wolf, H. and Brandt, R., 1995. Growth and quality of intra-specific aspen Populus tremula L. progenies. Silvae Genetica, 44(5/6): 319-325.

- Yousefi, B., Hemmati, A., Hasani, J. and Maroofi, A., 2009. Collecting and Identification of Willows (Salix sp) Accessions of Kurdistan and Collection Establishment. Final Report of Project, Published by Research Institute of Forests and Rangelands, 54p (In Persian).