November 2014

Genetic variation and heritability of yield and related traits in promising rice genotypes (Oryza sativa L.)

A study was conducted during 2008 to 2009 in 12 environments in Nigeria, Benin Republic and Togo to evaluate genetic variation and heritability of yield and related traits in 48 rice genotypes. The experiments were laid out in a randomized complete block design (RCBD) with three replications. Genotypes differed significantly at p > 0.001 for all the traits studied, which implies that the genotypes contain adequate...

Author(s): S. A. Ogunbayo, M. Sié, D. K. Ojo, K. A. Sanni, M. G. Akinwale, B. Toulou, A. Shittu, E. O. Idehen, A. R. Popoola, I. O. Daniel and G. B. Gregorio

November 2014

Management of major diseases and insect pests of onion and garlic: A comprehensive review

Onion (Allium cepa L.) and garlic (Allium sativum L.) are the most important commercial crops grown all over the world and consumed in various forms. In India, onion and garlic have been under cultivation for the last 5000 years. It is generally used as vegetables, spices or as medicines. India ranks second to China in area and production in both onion and garlic, but ranks 102nd for onion and 74th for garlic in terms...

Author(s): R. K. Mishra, R. K. Jaiswal, D. Kumar, P. R. Saabale and A. Singh

November 2014

Performance evaluation of indigenous Arabica coffee genotypes across different environments

Evaluation of 30 Arabica coffee genotypes was carried out at four different locations in south-western Ethiopia to identify genotypes that exhibits stable performance across wide environments. The analyses of variances revealed that yield differences among genotypes were highly significant at all locations in both seasons except at Jimma during the second season. The interaction was also highly significant. Six...

Author(s): Yonas Belete, Bayetta Belachew and Chemeda Fininsa