Results 171 to 180 of about 1,798 (205)
Some of the next articles are maybe not open access.
Studies on the relationship of Dioscorea cayenensis and Dioscorea rotundata cultivars
Euphytica, 1986Two numerical taxonomic techniques, single linkage cluster analysis (SLCA) and principal components analysis (PCA) were used to study the relationship between Dioscorea cayenensis and D. rotundata cultivars. The study was prompted by the confusion in the taxonomy of the two taxa. Twenty-two cultivars (14 of D. rotundata and 8 of D.
J. C. Onyilagha, J. Lowe
exaly +2 more sources
Dihydrostilbene phytoalexins from Dioscorea rotundata
Phytochemistry, 1987Abstract 2′,3-Dihydroxy-5-methoxybibenzyl (Batatasin IV), its demethyl derivative and 3,5-dihydroxybibenzyl (dihydropinosylvin) were isolated only from flesh of Dioscorea rotundata infected with Botryodiplodia theobromae and may therefore be considered phytoalexins.
D.E. Fagboun +3 more
openaire +1 more source
Journal of Food Engineering, 2007
Abstract Effects of pretreatment and drying conditions on yam varieties, namely Dioscorea alata and Dioscorea rotundata , in a fabricated laboratory scale hot air drier at temperature range of 50–80 °C and constant air velocity of 1.5 m 2 /s were investigated. Mass transfer during air-drying of yam slices was described using Fick’s diffusion model.
Kolawole O. Falade +3 more
openaire +1 more source
Abstract Effects of pretreatment and drying conditions on yam varieties, namely Dioscorea alata and Dioscorea rotundata , in a fabricated laboratory scale hot air drier at temperature range of 50–80 °C and constant air velocity of 1.5 m 2 /s were investigated. Mass transfer during air-drying of yam slices was described using Fick’s diffusion model.
Kolawole O. Falade +3 more
openaire +1 more source
Axillary proliferation and tuberisation of Dioscorea cayenensis–D. rotundata complex
Plant Cell, Tissue and Organ Culture, 2007Yams (Dioscorea spp) are tuber crops used as staple food in Africa because of their nutritional value. However agronomic constraints, phytosanitary problems and the lack of good healthy planting material restrict their production. In contrast to the inefficiency of traditional method of planting, tissue culture techniques allow to increase the ...
Ovono, Paul O +2 more
openaire +1 more source
Studies on Dioscorea rotundata Starch Properties
Starch - Stärke, 1989AbstractStarch from six clonal selections of Dioscorea rotundata was isolated by standard procedure. The yield was between 20–24%. Various properties of these starches were compared. Granule size, 2% viscosity, peak viscosity, clarity, sol stability, total and soluble amylose contents were studied and only small variations were observed in the ...
S. N. Moorthy, S. G. Nair
openaire +1 more source
In Vitro Cellular & Developmental Biology - Plant, 2009
Tuberisation was obtained in vitro on yam (Dioscorea cayenensis–Dioscorea rotundata complex). The effect of exogenous polyamines on tuber formation and development (length and weight of microtubers) was investigated and discussed in relation with changes in endogenous polyamines.
Ondo Ovono, Paul +2 more
openaire +2 more sources
Tuberisation was obtained in vitro on yam (Dioscorea cayenensis–Dioscorea rotundata complex). The effect of exogenous polyamines on tuber formation and development (length and weight of microtubers) was investigated and discussed in relation with changes in endogenous polyamines.
Ondo Ovono, Paul +2 more
openaire +2 more sources
Purification and Characterization of Invertase Inhibitors fromDioscorea RotundataTuber
Journal of Enzyme Inhibition, 1992Three invertase inhibitors (A), (B) and (C) from Dioscorea rotundata tuber were resolved on DEAE-cellulose ion exchanger. Two of the inhibitors, (B) and (C), were proteins and homogenous on polyacrylamide gels Mr 21,000 +/- 85 and 26,982 +/- 40/36,307 +/- 50 respectively.
A J, Nok, U A, Igwe, S J, Pai
openaire +2 more sources
In vitro tuberization in white yam (Dioscorea rotundata Poir)
Plant Cell, Tissue and Organ Culture, 1988Nodal cuttings of white yam were induced to produce microtubers on a MS-revised medium supplemented with various concentrations of sucrose, 20 mgl−1 L-cysteine, 0.5 mgl−1 kinetin and 0.7% agar. The frequency of tuberization was affected by the daylength, which is optimal at 12 and 16 h of light depending on the sucrose concentration.
openaire +1 more source
Isolation and characterization of the storage protein of yam tubers (Dioscorea rotundata)
Phytochemistry, 1983Abstract The major proteins of the yam tuber, which were identified as storage proteins by virtue of their abundance ( ca 85 % of the total protein content), amino acid composition (high in amide content) and cellular location within the tuber, were isolated by ion-exchange chromatography and characterized using, in particular, polyacrylamide gel ...
Patricia J. Harvey, Donald Boulter
openaire +1 more source
1993
Après une brève description des inflorescences, nous passerons en revue les différentes limites que nous avons pu recenser à la recombinaison sexuée. Enfin, nous envisagerons les solutions et les perspectives en matière de sélection créatrice. ----- After a brief description of the inflorescence, the different limitations found in sexual recombination ...
Pierre-Gamiette, F. +3 more
openaire +1 more source
Après une brève description des inflorescences, nous passerons en revue les différentes limites que nous avons pu recenser à la recombinaison sexuée. Enfin, nous envisagerons les solutions et les perspectives en matière de sélection créatrice. ----- After a brief description of the inflorescence, the different limitations found in sexual recombination ...
Pierre-Gamiette, F. +3 more
openaire +1 more source