A blog maintained by Tevita Kete, PGR Officer
Secretariat of the Pacific Community (SPC), Suva, Fiji Islands
This weblog documents the activities of Pacific Agricultural Genetic Resources Network (PAPGREN), along with other information on plant genetic resources (PGR) in the Pacific.
The myriad varieties found within cultivated plants are fundamental to the present and future productivity of agriculture. PAPGREN, which is coordinated by the Land Resources Division of the Secretariat of the Pacific Community (SPC), helps Pacific countries and territories to conserve their crop genetic diversity sustainably, with technical assistance from the Bioversity International (BI) and support from NZAID and ACIAR.
SPC also hosts the Centre of Pacific Crops and Trees (CEPaCT). The CEPaCT maintains regional in vitro collections of crops important to the Pacific and carries out research on tissue culture technology. The CEPaCT Adviser is Dr Mary Taylor (MaryT@spc.int), the CEPaCT Curator is Ms Valerie Tuia (ValerieT@spc.int).
PAPGREN coordination and support
Mr William Wigmore
Mr Adelino S. Lorens
Dr Lois Englberger
Mr Apisai Ucuboi
Dr Maurice Wong
Mr Tianeti Beenna Ioane
Mr Frederick Muller
Mr Herman Francisco
Ms Rosa Kambuou
Ms Laisene Samuelu
Mr Jimi Saelea
Mr Tony Jansen
Mr Finao Pole
Mr Frazer Bule Lehi
Interested in GIS?
Monday, April 26, 2004
Posted 7:00 PM by Luigi
Another interesting taro paper
Assessment of diversity using agro-morphological traits for selecting a core sample of Papua New Guinea taro (Colocasia esculenta (L.) Schott) collection
T. Okpul, D. Singh, T. Gunua and M.E. Wagih
Genetic Resources and Crop Evolution 51: 671–678, 2004.
Abstract Agro-morphological variation in the taro germplasm of Papua New Guinea was estimated using 18 polymorphic descriptor states to aid in the selection of a core sample for the formation of a regional core collection currently being assembled under the Taro Network for Southeast Asia and Oceania. A total of 276 accessions were stratified into five homogenous groups by using a hierarchical approach according to botanical variety (dasheen or eddoe), altitude (high or low) and stolon formation (present or absent). In selecting the core sample, the eddoe group were directly included because of their rarity in the germplasm collection. While, a ten per cent sample fraction within each group of the dasheen types were selected based on principal component scores. A total of 31 accessions were selected for the core sample. Multivariate analysis of the core sample revealed wide variation, which was mainly influenced by botanical variety, plant height, lamina colour and variegation, petiole colour, corm shape, corm weight and palatability. Cluster analysis identified two homogeneous clusters based on predominant characters that should be useful to breeders. The results obtained in this study provide useful background information for further development of a national core collection.
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