This article is based on the study, ôStrategies and Options for Increasing and Sustaining Benefi ts from Fisheries and Aquaculture Production to Benefi t Poor Households in Asiaö, carried out under ADB-RETA 5945, and implemented by the WorldFish Center in partnership with nine participating...

In this paper we provide an alternative method of construction for incomplete block designs used for varietal trails by using designs for factorial experiments where the level codes of the factors are modified. By this method many existing designs are obtained quite simply and some new designs...