Some biological and agronomical characteristics concerning walnut germplasm evaluation in the conditions of Rep. Moldova

Abstract

There are presented some biological and ecological peculiarities of local walnut varieties and new selections in the conditions of Rep. of Moldova. Main evaluated genotypes are characterized by large ecological plasticity and high adaptability to variable local climatic and edaphic conditions. There are demonstrate that formation of lateral pistillate buds there are present within all dichogamous type. But an important percent of fruit (nuts) set in the lateral positions there are rare events. We suppose that type of initiation of pistillate flower buds both in terminal and lateral positions with sustainable fructification of dichogamous of some selected Moldavian walnut selections shows a large biodiversity reserves for the future breeding programs.