Pistacia atlantica is the most important tree species for the economy of many rural areas in west of Iran, but no effort has been made for the genetic improvement of this species. The aim of this investigation was to study the genetic variation and inheritance of early growth traits in P. atlantica. For this purpose, three wild pistachio populations comprising 60 randomly selected adult trees f...

The exploitation of industrial strains chickens in the Sahelian climate Niger is characterized by a decline performance and significant costs associated with their maintenance. In contrast, local are well adapted to these environmental conditions but poor production performance. Genetic selection could improve productivity. first step determine if genetic parameters growth high enough ensure su...

This paper provides an overview of the literature on international di¤erences in the gender wage gap. It then focuses on the Italian case and analyzes di¤erentials in gender wage and employment gaps across regions. The cross-regional variation reproduces the negative correlation between wage and employment gaps observed at the cross-country level. Using the methodology in Olivetti and Petrongol...