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- 저자 : Zafar Ahmad Reshi (검색결과 2 건)
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Morpho-Anatomical Responses of Trigonella foenum graecum Linn. to Induced Cadmium and Lead Stress
( Syed Hilal Ahmad ),( Zafar Reshi ),( Javed Ahmad ),( Muhammad Iqbal ) 한국식물학회 2005 Journal of Plant Biology Vol.48 No.1
Effect of different concentrations of cadmium (0, 5, 15, 30, 50 ㎍/g of soil) and lead (0, 25, 50, 100, 200 ㎍/g of soil) on morphological and anatomical features of Trigonella foenum graecum Linn. was studied at pre-flowering, flowering and post flowering stages. Morphological attributes, like number of leaves per plant, total leaf area of the plant and single leaf area, dry mass of stem, root and leaf, length of shoot, root and plant, size of stomata and stomatal pore, and the density of stomata on both epidermises were significantly reduced under metal stress at all the developmental stages. Trichome length on both epidermises increased while their density decreased under metal stress. Under cadmium stress, proportion of pith and vasculature decreased but cortex increased in the stem. Under lead stress, proportion of pith and vasculature increased but cortex decreased in the stem. In the root, proportion of vasculature and pith increased and cortex decreased in response to both cadmium and lead stresses. Dimensions of vessel element and xylem fibre in the wood of stem and root decreased under the cadmium and lead stresses. Decrease in density of vessel element in the stem and root with advancement of age was more pronounced in plants grown under cadmium and lead stresses.
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Aijaz Hassan Ganie,Zafar Ahmad Reshi,Bashir Ahmad Wafai,Anzar Ahmad Khuroo 국립중앙과학관 2017 Journal of Asia-Pacific Biodiversity Vol.10 No.2
The fruit morphology of eight species of the genus Potamogeton L. in Kashmir Himalaya was examined, using stereomicroscopy and scanning electron microscopy, in order to determine their utility in taxonomic delimitation. During the study, both macro- and micromorphological characters, including the fruit shape, size, color, and nature of the fruit beak, were investigated. The results reveal that the broad- and linear-leaved species have keeled fruits, whereas in filiform-leaved species the dorsal and lateral keels are either absent or obscure. The present study clearly shows the potential utility of fruit features as delimiting characters in order to distinguish different species of the genus Potamogeton in this Himalayan region.
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