دورية أكاديمية
Effects of ozone on photosynthetic apparatus of silver birch (Betula pendula Roth.) saplings ; Ozono poveikis karpotojo beržo (Betula pendula Roth.) sodinuku fotosintetiniam aparatui
| العنوان: | Effects of ozone on photosynthetic apparatus of silver birch (Betula pendula Roth.) saplings ; Ozono poveikis karpotojo beržo (Betula pendula Roth.) sodinuku fotosintetiniam aparatui |
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| المؤلفون: | Serafinavičiūtė, Brigita, Stakėnas, Vidas, Sakalauskaitė, Jurga |
| المصدر: | Vagos, 2008, Nr. 81 (34), p. 54-59 ; ISSN 1648-116X |
| سنة النشر: | 2008 |
| المجموعة: | LAEI VL (Lithuanian Institute of Agrarian Economics Virtual Library) / LAEI VB (Lietuvos agrarinės ekonomikos institutasvirtualią biblioteką) |
| مصطلحات موضوعية: | Closed chambers, Ozone fumigation, Birch saplings, Growth, Pigments |
| الوصف: | The study examined ozone effects on morphological parameters of potted silver birch (Betula pendula Roth.) saplings. From June 1 till June 28, 2005 the 4-year old saplings were placed in the walk-in closed chambers of controlled environment and exposed to ozone concentrations of 0 μg m-3, 80 μg m-3, 160 m-3, and 240 m-3. After the fumigation saplings were harvested and dry biomass of different fractions was determined. During fumigation the extent of the visually estimated symptoms tended to increase and the chlorophyll content in the foliage decreased with increasing ozone concentrations; however, no significant relationships between the extent of the visible injuries and the concentrations of the foliar pigments were found. The dry biomass of stems, branches, and total above ground part fractions of the ozone treated saplings tended to be lower of the ozone treated saplings comparing to the control saplings. The dry mass of the foliage of ozone-affected saplings was significantly lower than the foliage mass of control saplings. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | Lithuanian English |
| العلاقة: | http://lammc.lvb.lt/LAMMC:ELABAPDB5814611&prefLang=en_USTest |
| الإتاحة: | http://lammc.lvb.lt/LAMMC:ELABAPDB5814611&prefLang=en_USTest |
| رقم الانضمام: | edsbas.52B85E2A |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |