Evaluation of sweet potato landraces and cultivars for climate change resilience to drought

Evaluation of sweet potato landraces and cultivars for climate change resilience to drought a paper by Herman Adams, Bruce Lauckner, Gaius Eudoxie, Compton Paul, Norman Gibson, Brent Eversley, Kistian Flemming, and Nazir Ali is featured in the CARDI Review issue 14: pp.13-21

ABSTRACT
The sweet potato, [Ipomoea batatas (L.) Lam.], is an important staple food in the Caribbean and other sub-tropical and tropical regions. Food security is threatened in these developing countries particularly by drought brought about by climate change. It is felt that sweet potato can be a crop able to withstand drought and thus contribute to food security. Hence, this trial was implemented to determine drought resistant sweet potato landraces and cultivars. During the period 1 February to 3 June 2014, ten landraces and cultivars of sweet potato were evaluated at the Sugarcane Feeds Centre, in Central Trinidad. The trial was laid out in a randomised block with four replicates. The ten landraces and cultivars were Carrot, Certain, Chickenfoot (local control), John, Maggie, Margarita, Nina, O49, R368 and TIS9191. Data were recorded on the climate, plant morphological characters above ground, plant morphology below ground, storage root yield and pest occurrence.

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Evaluation of plant population densities for hot pepper in Trinidad and Tobago

The paper, Evaluation of plant population densities for hot pepper in Trinidad and Tobago by Herman Adams, F. Bruce Lauckner and Gaius Eudoxie is featured in the CARDI Review issue 14: pp.5-12

ABSTRACT
Research results from the neotropics showed a high positive correlation between plant population densities and yields of marketable berries in hot pepper (Capsicum chinense Jacq.). Densities were compared on a Piarco Series soil (Ultisols of the Aquoxic Tropudults sub-group) during 2011 in central Trinidad on cv. Moruga Red to determine the density that will produce the highest yields of berries, mean berry weights and mean plant developmental traits. The 16 different densities ranged from 60 x 30 cm to 150 x 120 cm.

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