نتایج جستجو برای: dioscorea
تعداد نتایج: 1760 فیلتر نتایج به سال:
The objectives of the present study were to characterize good-quality cultivars, identify relationships between local eating preferences and primary compound content, and reveal biofortification potential in tropical root crop species aroids, yams, cassava, and sweet potato. A core sample of about 500 cultivars was assembled to represent the widest agro-morphological diversity. Very high coeffi...
a voucher specimen has been maintained under the accession number DACB-27943. Although Uvaria hamiltonii growing in Bangladesh has not been studied before, two #avanones, an aurone, a chalcone and a tetrahydroxanthene have been reported from this plant (Huang et al., 1998). A total of "ve aristolactams have been isolated from the stem bark of U. hamiltonii. Four of these were isolated from the ...
Supporting Online Material for Detection of Circumstellar Material in a Normal Type Ia Supernova F. Patat,* P. Chandra, R. Chevalier, S. Justham, Ph. Podsiadlowski, C. Wolf, A. Gal-Yam, L. Pasquini, I. A. Crawford, P. A. Mazzali, A. W. A. Pauldrach, K. Nomoto, S. Benetti, E. Cappellaro, N. Elias-Rosa, W. Hillebrandt, D. C. Leonard, A. Pastorello, A. Renzini, F. Sabbadin, J. D. Simon, M. Turatto...
You-Quan Li,1,2 Guan-Shan Tian,1,3 Michael Ma,1,4 and Hai-Qing Lin1 1Department of Physics, Chinese University of Hong Kong, Hong Kong, China 2Zhejiang Institute of Modern Physics, Zhejiang University, Hangzhou 310027, China 3Department of Physics, Peking University, Beijing, China 4Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221, USA (Received 20 July 2004; published 20...
Cytenamide forms a 1:1 solvate with trifluoro-acetic acid (systematic name: 5H-dibenzo[a,d]cyclo-hepta-triene-5-carboxamide trifluoro-acetic acid solvate), C(16)H(13)NO·C(2)HF(3)O(2). The compound crystallizes with one mol-ecule of cytenamide and one of trifluoro-acetic acid in the asymmetric unit; these are linked by O-H⋯O and N-H⋯O hydrogen bonds to form an R(2) (2)(8) motif. The trifluoro-me...
Two clerodane diterpenoids, Bafoudiosbulbins A 1, and B 2, together with five known compounds: tetracosanoic acid, 1-(tetracosanoyl)-glycerol, trans-tetracosanylferulate, beta-sitosterol and 3-O-beta-D-glucopyranosyl-beta-sitosterol were isolated from the tubers of Dioscorea bulbifera L. var sativa. Their structures were established by spectroscopic methods (1D and 2D-NMR, MS) and X-ray crystal...
BACKGROUND AND AIMS The control of dormancy in yam (Disocorea spp.) tubers is poorly understood and attempts to shorten the long dormant period (i.e. cause tubers to sprout or germinate much earlier) have been unsuccessful. The aim of this study was to identify and define the phases of dormancy in Dioscorea rotundata tubers, and to produce a framework within which dormancy can be more effective...
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