تولید انبوه و ارزیابی عملکرد رویشی نهال‌های بذری صنوبر دلتوئیدس (.Populus deltoides Marsh) و اورامریکن (P. euramericana (Dode))

نوع مقاله : علمی- پژوهشی

نویسندگان

1 دانشیار، بخش تحقیقات منابع طبیعی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان مازندران، سازمان تحقیقات، آموزش و ترویج کشاورزی، ساری، ایران

2 استادیار، بخش تحقیقات منابع طبیعی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان مازندران، سازمان تحقیقات، آموزش و ترویج کشاورزی، ساری، ایران

چکیده

 پژوهش پیش‌رو با هدف تولید انبوه نهال‌‌های بذری صنوبر دلتوئیدس (Populus deltoides Marsh.) و اورامریکن (P. euramericana (Dode)) و بررسی عملکرد رویشی نهال‌‌های تولیدشده انجام شد. در مرحله اول پژوهش، بذرهای جمع‌آوری‌شده از کلکسیون صنوبر ایستگاه تحقیقات جنگل و مرتع چمستان در دو تیمار خاک خالص مزرعه و خاک مخلوط با ماسه و سه تراکم بذر در سه تکرار کاشته شدند. سپس، تعداد، ابعاد و برخی ویژگی‌های ریخت‌شناسی نهال‌های تولیدشده بررسی شد. در مرحله دوم پژوهش، 12 ژنوتیپ از نتاج هریک از دو گونه موردنظر انتخاب شد. از آن‌ها، قلمه کافی تهیه شد و به‌همراه قلمه‌های درختان مادری در سه تکرار کاشته شدند. ویژگی‌های رویشی آن‌ها نیز آماربرداری و تجزیه‌وتحلیل شد. نتایج مرحله اول نشان داد که دامنه تغییرات ویژگی‌های قطر، ارتفاع، تعداد برگ، طول دم‌برگ، درصد زنده‌مانی و درصد نهال‌های بلندتر از یک متر در نهال‌های بذری p . euramericana 92/40 به‌طور معنی‌داری بیشتر از نهال‌های بذری P. deltoides 69/55 بود. از نظر قطر، ارتفاع و درصد نهال‌های بلندتر از یک متر، خاک خالص مزرعه به‌طور معنی‌داری بر خاک مخلوط برتری داشت. زنده‌مانی برای تراکم‌های 50، 100 و 200 بذر در متر مربع به‌ترتیب 32/8، 19/8 و 10/25درصد به‌دست آمد. نتایج مرحله دوم نشان داد که ارتفاع و قطر پایه‌های مادری کمتر از نتاج بود. ژنوتیپ‌های منتخب این پژوهش شامل ژنوتیپ‌های 10، 12 و دو از نتاج p . deltoides 69/55 و ژنوتیپ سه از نتاج p . euramericana 92/40 هستند که می‌‌توانند برای آزمایش‌های کشت فاصله‌ای، بررسی مقاومت به تنش‌ها و توسعه زراعت چوب به بخش اجرا معرفی شوند.

کلیدواژه‌ها

عنوان مقاله [English]

Mass production and assessment of vegetative yield of Populus deltoides Marsh. and P. euramericana (Dode) seedlings

نویسندگان [English]

  • F. Asadi 1
  • S.E. Sadati 2
1 Associate Prof., Research Division of Natural Resources, Mazandaran Agricultural and Natural Resources Research and Education Center, AREEO, Sari, Iran
2 Assistant Prof., Research Division of Natural Resources, Mazandaran Agricultural and Natural Resources Research and Education Center, AREEO, Sari, Iran
چکیده [English]

The present study was conducted with the aim of mass production of seedlings of Populus deltoides Marsh. and P. euramericana (Dode) and to investigate the vegetative yield of the produced seedlings. In the first phase of the study, the collected seeds from the poplar collection of Chamestan Forest and Rangeland Research Station were sown in two treatments of pure field soil and soil mixed with sand, and three seed densities in three replications. Then, the number, dimensions and some morphological characteristics of the produced seedlings were investigated. In the second phase of the study, 12 genotypes were selected from the offspring of each of the two species. Sufficient cuttings were obtained from them and planted with cuttings of mother trees in three replications. Their vegetative characteristics were also recorded and analyzed. The results of the first stage showed that the range of changes in diameter, height, number of leaves, leaf length, survival percentage and percentage of seedlings longer than one meter in P. euramericana 92/40 seedlings was significantly higher than P. deltoides  69/55 seedlings. In terms of diameter, height and percentage of seedlings higher than one meter, the pure field soil was significantly superior to the mixed soil. Survival for densities of 50, 100 and 200 seeds per square meter was 32.8%, 19.8% and 10.25%, respectively. The results of the second stage showed that the height and diameter of the mother bases were less than the offspring. The selected genotypes of this study include genotypes 10, 12 and 2 from the offspring of P. deltoides 69/55 and genotype three from the offspring of P. euramericana 92/40 which can be introduced to the implementation section for spacing cultivation experiments, stress resistance study and development of wood cultivation.

کلیدواژه‌ها [English]

  • Morphological characteristics
  • sexual reproduction
  • wood farming

مراجع

- Alimohamadi, A., Asadi, F. and Aghdaei, R.T., 2012. Genetic diversity in Populus nigra plantations from west of Iran. Annals of Forest Research, 56(1): 165-178.
- Asadi, F. and Mirzaie-Nodoushan, H., 2011. Evaluation of different treatments in sexual reproduction of Populus caspica Bornm. for broadening its genetic basis in the nature. Iranian Journal of Forest and Poplar Research, 19(3): 441-452 (In Persian).
- Asadi, F., Naderishahab, M.A. and Mirzaienodoushan, H., 2005. Identity and genetic diversity of populus species clones using microsatellite markers. Pajouhesh & Sazandegi, 17(1): 49-56 (In Persian).
- Braatne, J.H., Rood, S.P. and Heilman, P.E., 1996. Life history, ecology, and conservation of riparian cottonwoode in North America: 57-85. 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, Ottawa, Canada, 542p.
- Dixon, M.D. and Turner, M.G., 2006. Simulated recruitment of riparian trees and shrubs under national and regulated flow regimes on the Wisconsin River, USA. River Research and Applications, 22(10): 1057-1083.
- Ghasemi, R. and Modir Rahmati, A.R., 2004. Investigation on wood production of different poplar clones (open crown) in Karaj districht. Iranian Journal of Forest and Poplar Research, 12(2): 221-250 (In Persian).
- Ghasemi, R., Modir Rahmati, A.R., Bagheri, R., Calagari, M. and Asadi, F., 2014. Study of phenology, morphology and growth characteristics of poplar species, cultivars and clones in the Karaj Poplar Collection. Final report of Research Project, Research Institute of Forest and Rangelands, Tehran, 93p (In Persian).
- González, E., Comín, F.A. and Muller, E., 2010. Seed dispersal, germination and early seedling establishment of Populus alba L. under simulated water table declines in different substrates. Trees, 24(1): 151-163.
- Gu, R., Fonseca, S., Puskás, L.G., Hackler Jr., L., Zvara, Á., Dudits, D. and Pais, M.S., 2004. Transcript identification and profiling during salt stress and recovery of Populus euphratica. Tree Physiology, 24(3): 265-276.
- Gu, R.S., Jiang, X.N. and Guo, Z.C., 1999. Structure characteristics associated with salt tolerance of Populus euphratica. ActaBotanicaSinica, 41(1): 576-579 (In Chinese).
- Heszky, L.E., Simon-Kiss, I., Binh, D.G., Kiss, E., Kiss, J. and Gyulai, G., 1992. New plant varieties developed by conventional and haploid somaclone method. Proceeding of the First Egytion-Italian Symposium on Biotechnology. Assiut, Egypt, 21-23 Nov. 1992: 139-146.
- Hultin, K.R., Bush, S.E., West, A.G. and Ehleringer, J.R., 2007. Population structure, physiology and echohydrological impacts of dioecious riparian tree species of western North America. Oecologia, 154(1): 85-93.
- Imbert, E. and Lefevre, F. 2003. Dispersal and gene flow of Populus nigra (Salicaceae) along a dynamic system. Journal of Ecology, 91(3): 447-456
- Karrenberg, S., Edwards, P.J. and Kollmann, J., 2002. The life history of Salicaceae living in the active zone of floodplains. Freshwater Biology, 47(4): 733-748.
- Latva-Karjanmaa, T., Suvanto, T., Leinonen, K. and Rita, H., 2006. Sexual reproduction of European aspen (Popolus tremula L.) at prescribed burned site: the effects of moisture conditions. New Forests, 31(3): 545-558.
- Lexer, C., Fay, M.F., Joseph, J.A., Nica, M.S. and Heinze, B., 2005. Barrier to gene flow between two ecologically divergent Populus species, P. alba (with poplar) and P. tremula (Europea aspen): the role of ecology and life history in gene introgression. Molecular Ecology, 14(4): 1045-1057.
- Ma, H.C., Fung, L., Wang, S.S., Altman, A. and Hüttermann, A., 1997. Photosynthetic response of Populus euphratica to salt stress. Forest Ecology and Management, 93(1-2): 55-61.
- Mahoney, J., M. and Rood, S.B., 1998. Stream flow requirements for cottonwood seedling recruitment, an integrative model. Wetlands, 18(4): 634-645.
- Rowland, D.L. and Johnson, N.C., 2001. Sexual demographics of riparian populations of Populus deltoides: Can mortality be predicted from a change in reproductive status? Canadian Journal of Botany, 79(6): 702-710.
- Salvov, G.T. and Zhelev, P., 2010. Salient biological features, systematic, and genetic variation of Populus: 15-38. In: Johnson, S., Bhalerao, R.P. and Groover, A.T. (Eds.). Plant Genetics and Genomics: Crops and Models. Volume 8: Genetics and Genomics of Populus. Springer, New York, 381p.
- Salvov, G.T., Leonardi, S., Burczyk, J., Adams, W.T., Strauss, S.H. and Difazio, S.P., 2009. Extensive pollen flow in two ecologically contrasting populations of Populus trichocarpa. Molecular Ecology, 18(2): 357-373.
- Shafroth, P.B., Stromberg, J.C. and Patten, D.T., 2002. Riparian vegetation response to altered disturbance and stress regimes. Ecological Applications, 12(1): 107-123.
- Stanton, B.J. and Villar, M., 1996. Controlled reproduction of Populus:113-138. 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, Ottawa, Canada, 542p.
- Vanden Broeck, A., Cottrell, J., Quataert, P., Breyne, P., Storme, V., Boerjan, W. and Van Slycken, J., 2006. Paternity analysis of Populus nigra L. offspring in a Belgium plantation of native and exotic poplars. Annals of Forest Science, 63(7): 783-790.

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