Preliminary growth of individuals Populus euphratica, gametoclonal and hybrids (P. euphratica with P. alba) at the first 5-years in Dezful botanical garden

Document Type : Research article

Authors

1 Professor, Research Institute of Forests and Rangelands

2 Assistant Prof., Research Institute of Forests and Rangelands

3 Research Expert, Research Institute of Forests and Rangelands

4 Research Expert, Research Center of Agriculture and Natural Resources of Khuzestan province

Abstract

Poplar trees are appropriate species for plantation and forest rehabilitation because of fast growing and high wood yield, as well as adaptability to unfavorable climate. Salinization of soil and high temperature are the inhibitory factors in Khuzestan province. Populus euphratica is a tree species that tolerates soil salinity and high temperature. Acclimatization of cut seedling of three Populus genotypes including P. euphratica, gametoclonal of P. euphratica and hybrids of P. euphratica with P. alba were studied in Dezful botanical garden of Khuzestan province in southwest of Iran. Heterosis effect was observed for hybrid trees and they had higher yield than the Khuzestan's endemic P. euphratica during the experiment. Maximum values of height and diameter were measured in the hybrid genotype. Because of morphological properties of the hybrid trees such as straight trunk and high diameter, they could be exploited in wood production among these three genotypes. Moreover, the survival rate of hybrid of P. euphratica with P.alba was higher than other poplar genotypes. Therefore, these hybrids could be introduced as promising genotypes for forest rehabilitation and wood farming projects.

Keywords

References

- جعفری مفید‌آبادی، ع.، 1380. بررسی هتروزیس در دو‌رگ‌های بین‌گونه‌ای در صنوبر. تحقیقات ژنتیک و اصلاح گیاهان مرتعی و جنگلی ایران، 8: 41-29.
- جعفری مفید‌آبادی، ع. و مدیررحمتی، ع.ر.، 1379. استفاده از تکنیک درون‌شیشه‌ای نجات جنین در تولید دورگ‌های بین‌گونه‌ای صنوبر P. alba×P. euphratica و            P. euphratica×P. alba. تحقیقات ژنتیک و اصلاح گیاهان مرتعی و جنگلی ایران، 1: 53-37.
- شهرزاد، ش. و امام، م.، 1379. تکثیر غیر جنسی پده (Populus euphratica Oliv.) به‌روش کشت بافت. تحقیقات ژنتیک و اصلاح گیاهان مرتعی و جنگلی ایران، 2: 37-11.
- کلاگری، م.، 1383. بررسی تغییرات اکولوژیکی و ژنتیکی پده (P. euphratica Oliv.) در رویشگاه‌های طبیعی ایران. رساله دکتری، دانشگاه تربیت مدرس، دانشکده منابع طبیعی و علوم دریایی. 143 صفحه.
- Campbell, J.S., Mahoney, J.M. and Rood, S., 1993. A lack of hetrosis in natural poplar hybrids from southern Alberta. Can. J. Bot., 71: 37-42.
- Jafari Mofidabadi, A., Jorabchi, A., Shahrzad, S. and Mahmodi, F., 2001. New genotypes development of Populus euphratica Oliv. Using gametoclonal variation. Silvae Genetica, 50: 5-6.
- Sedgley, M. and Griffin, A.R., 1989. Sexual Reproduction of Tree Crops. Academic press. London. 378 p.
- Wolter, K.E. and McCown, B.H., 1989. An attempt at generating haploid lines of poplar species for genetic manipulation and breeding programs. Forest Tree Physiology, 46: 98-100.

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