June 2012

Analysis of pathogen virulence of wheat stem rust and cultivar reaction to virulent races in Tigray, Ethiopia

Wheat stem rust caused by Puccinia graminis f. sp. tritici is amongst the biotic factors which can cause up to 100% yield loss during epidemic years. The highland of Ethiopia is considered as a hot spot for the development of stem rust diversity. This study was carried out to analyze the virulence diversity of P. graminis f. sp. tritici and evaluate the seedling reaction of...

Author(s): Teklay Abebe, Getaneh Woldeab and Woubit Dawit

June 2012

Effect of exposure time of fast neutron irradiation on growth and yield parameters of Capsicum annum and Capsicum frutescens

In order to assess the effect of fast neutron irradiation (FNI) on growth and yield parameters of Capsicum annum and Capsicum frutescens, 400 dry seeds of each species were exposed to FNI from an Americium Beryllium source with a flux of 1.5 ×104 n.cm2/s for five irradiation exposure...

Author(s): Olamide Ahmed Falusi , Oladipupo Abdulazeez Yusuf Daudu and Jaime A. Teixeira da Silva        

June 2011

Studies on the calcium oxalate crystals (Raphides) and idioblast of some selected members of Araceae in Eastern India

The presence or absence of micro-characters in plant system like calcium oxalate crystals, trichromes, hairs etc. has been used for understanding the evolutionary relationships of plant species. The size and appearance of calcium oxalate crystals (COCs) can differ within families, genus, and species and these characteristics might be genetically controlled. We have studied the calcium oxalate crystals in the different...

Author(s): Sk. Md. Abu Imam Saadi and Amal Kumar Mondal