Value production of poplar clones
نویسندگان
چکیده
منابع مشابه
A study on the incidence of woolly poplar aphid, Phloemyzus passerinii (Hom.: Aphididae) on poplar species and clones in Hamedan province, Iran
شتهی مومی صنوبر، Phloeomyzus passerinii (Signoret)، در ایران و بسیاری از کشورهای جهان از آفات مهم صنوبر به شمار میرود. طی سالهای 1382-1381، مقاومت و حساسیت دوازده کلن صنوبر نسبت به شتهی P. passerinii در استان همدان مورد بررسی قرار گرفت. تعداد کلنیهای شتهی تشکیل شده در واحد سطح شاخه در طول فصل رشد در سه نوبت اندازهگیری شد. کلنهای Populus alba 58/57، P. deltoides 72/51، P. deltoides missi...
متن کاملCadmium phytoextraction potential of poplar clones (Populus spp.).
Biomass production, leaf number and area, photosynthetic and dark respiration rates, leaf concentration of photosynthetic pigments, nitrate reductase activity, as well as cadmium concentrations in leaves, stem, and roots were measured in poplar clones PE 4/68, B-229, 665, and 45/51. Plants were grown hydroponically under controlled conditions and treated with two different cadmium (Cd) concentr...
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متن کاملEvaluation of field performance of poplar clones using selected competition indices
Use of competition indices in the analysis of forestry experiments may improve detection and understanding of treatment effects, and thereby improve the application of results. In this paper, we compared the performance of 8 indices in an analysis of a spacing trial of four Populus clones planted in pure and mixed clonal plots. Indices were included as covariates in analyses of variance and eva...
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ژورنال
عنوان ژورنال: Journal of Forest Science
سال: 2008
ISSN: 1212-4834,1805-935X
DOI: 10.17221/12/2008-jfs