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A semiselective medium was developed for isolating Xanthomonas campestris pv. musacearum (Xcm) from infected banana plants, soil and insect vectors. The new medium was named cellobiose-cephalexin agar (CCA) and it contained (L−1): 1 g yeast extract, 1 g glucose, 1 g peptone, 1 g NH4Cl, 1 g MgSO4•...
Uganda’s National Agricultural Advisory Services (NAADS), established in 2001, is a demand-driven extension program for developing farmer organizations and improving farmer production and welfare. The program is expected to be 50% client funded after 25 years. However, varying returns to extensio...
African farming systems are highly heterogeneous: between agroecological and socioeconomic environments, in the wide variability in farmers’ resource endowments and in farm management. This means that single solutions (or ‘silver bullets’) for improving farm productivity do not exist. Yet to date...
Datos recientes muestran que la destrucción de los bosques primarios ha estado acompañada por la expansión de los bosques secundarios. Los estudios también muestran que los bosques secundarios son capaces de proporcionar algunos de los servicios económicos y ecológicos de los bosques primarios. E...
The paper distinguishes between collusive and non-collusive corruption in the forestry sector and analyses their interaction with the political/institutional environment. While non-collusive corruption increases costs for the private sector, collusive corruption reduces costs for the bribee, ther...
In this paper, we present an intensification model based on the intensity of exploitation and use of forests and forest lands as a relevant framework for analysing the appearance, dynamics, and evolution of different types of secondary forests. The systematic driving forces responsible for the di...
This paper provides the general objectives of the special issue: secondary forests in Asia: their diversity, importance and role in future environmental management. It provides a brief overview of the renewed attention to tropical secondary forests and sketches the history of research on this sub...
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