کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4528148 1324287 2010 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Salinity tolerance of Avicennia marina (Forssk.) Vierh. from Gujarat coasts of India
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم آبزیان
پیش نمایش صفحه اول مقاله
Salinity tolerance of Avicennia marina (Forssk.) Vierh. from Gujarat coasts of India
چکیده انگلیسی

Greenhouse experiments were conducted to assess the effects of soil salinity on emergence, growth, water status, proline content and mineral accumulation of seedlings of Avicennia marina (Forssk.) Vierh. NaCl was added to the soil and salinity was maintained at 0.2, 2.5, 5.1, 7.7, 10.3, 12.6, 15.4, 17.9, 20.5, 23.0, 25.6 and 28.2 psu. A negative relationship between seedling emergence and salt concentration was obtained. Nevertheless, this mangrove is highly salt tolerant during germination. Growth of seedlings was significantly promoted by low salinity and optimum growth was obtained at 15.4 psu. Higher salinities inhibited plant growth. Growth and dry matter accumulation in tissues followed the same optimum curve. Water potential of tissues became significantly more negative with increasing salinity, and proline content significantly increased. Moreover, water potential and proline content of tissues displayed an S-curve with the inflection point below ∼10 psu. The concentration of Na in tissues increased significantly, whereas K, Ca, Mg, N and P content decreased.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Aquatic Botany - Volume 93, Issue 1, July 2010, Pages 9–16
نویسندگان
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