Fruit characteristics in walnut tree population in relation to growing season onset

Genetika

关键词: growing season onset;    fruit properties;    population;    Walnut;   

DOI  :  10.2298/GENSR1003493M

来源: DOAJ

【 摘 要 】

The objective of walnut selection is to obtain promising genotypescharacterized by later growing season onset, shorter period of vegetation,resistance to diseases, stable fruit productivity and high fruit quality.Aiming at obtaining genotypes with favorable properties, in five localitiesof Eastern Serbia, where walnut is widely grown, we studied the correlationamong growing season onset on the one hand, and major pomological propertiesand fruit quality on the other. In the studied population, trees with earlygrowing season onset and fruit mass up to 8.0 g (30.1%) were predominant,whereas those with late growing season onset were in minority, fruit massranging from 10.1 to 12 g (0.07%). Kernel ratio was highest in the former(20.69%), and the lowest in the latter (0.07%). Similar was observed in oiland raw proteins content in kernel which was highest in fruits of early trees(33.62%, 47,55%), while it was remarkably lower in late ones (0.72%, 0.49%).The obtained results suggest that the studied population was dominated byearly trees and unfavorable or less favorable fruit properties. In spite ofthat, we evidenced some trees with favorable properties which can be used inbreeding as donors of useful genes.

【 授权许可】

Unknown