Subject: Yam

Yam Agronomy

Adaptation of yam (Dioscorea spp.) cultivation to changing environment and economic constraints in Benin, West Africa
P. Vernier and A.R. Dossou

Yam Physiology

Biorhythms in apcial dominance of stored white Guinea yam (Dioscorea rotundata Poir) tubers: endogenous variations in macro- and micronutrient levels as empirical evidence
C.E. Gyansa-Easmon and N.M. Alvarez

Yam Agronomy

Participatory assessment and farmers' knowledge on yam varieties (D. rotundata) in Benin
P. Vernier and A. Dansi

Growth enhancement of in vitro yam (Dioscorea alata) plantlets under photoautotrophic condition using a forced ventilation system
Quynh Thi Nguyen, Hung Tan Le, Du Xuan Thai and Toyoki Kozai

The yam nematode (Scutellonema bradys) in West Africa and the potential for its control through resistance
C. Kwoseh, R. Plowright, R. Asiedu, J. Bridge and S. Gowen

Growth and bearing of nematode-infested yellow yam dipped in household disinfestants
Dave G. Hutton

Seed yam production through the yam minisett technique; recent modifications to enhance farmers' adoption
John E.G. Ikeorgu, H.N. Nwokocha and M.C. Ikewelle

Nutrient deficiencies in greater yam (Dioscorea alata) and their effects on leaf nutrient concentrations
Jane N. O'Sullivan, Rachel Jenner and David G. Edwards

Polyploidy in greater yam in relation to hybridization and genetic improvement
K. Abraham, S.G. Nair, M.T. Sreekumari, S. Edison and M. Unnikrishnan

Yam Breeding and Postharvest

Genetic diversity of landraces of Dioscorea alata L. collected from Nuku District of Papua New Guinea
Hidekazu Toyohara, Kenji Irie, Masaki Takahashi, Takao Myouda, Kaihei Koshio, Fumio Kikuchi and Hiroshi Fujimaki

Edible yam (Dioscorea spp.) improvement: a working model
C.E. Gyansa-Easmon

Unusual growth of embryoless seed portion of giant elephant foot yam (Amorphophallus titanum Becc.) after treatment with BAP hormone
M.S. Prana

Yam Poster Session

Causes of cracking and deformation in tubers of Dioscorea opposita Thumb
Tatsuo Sato

The South Pacific yam network (SPYN)
Vincent Lebot

Effects of yam Dioscorea cayenensis-rotundata postharvest treatments on yam chip quality
F. Dumaine, D. Dufour, C. Mestres, J.M. Meot, C. Bada and J. Hounhouigan

Viruses infecting Dioscorea yams in the South Pacific islands
Lawrence Kenyon, Benedicte Lebas, Susan Seal and Vincent Lebot

Native yam (Dioscorea sp.) starches as a functional ingredient in food products
N.G. Amani, D. Dufour, C. Mestres and A. Kamenan