ISHS Acta Horticulturae 825: I Balkan Symposium on Fruit Growing
POMOLOGICAL/PHENOLOGICAL PROPERTIES OF WALNUT SELECTIONS |
| Authors: | M. Mitrović, R. Miletić, M. Lukić, M. Rakićević, M. Blagojević |
| Keywords: | walnut, population, selections, phenology, fruit |
| Abstract:
The work on clonal selection of walnut has been conducted for more than four decades at the Fruit Research Institute. Walnut genotypes spontaneously propagated in the natural population are abundant in Serbia. Being an anemophilic species, walnut is characterized by high polymorphism. The available genetic pool in spontaneous populations under in situ conditions is the base of clonal selection. The paper presents phenological/pomological properties of some selections singled out as specific for testing within comparative studies in a collection planting. The trees of these selections are vital, vigorous, more than 15 years of age, characterized by excellent fruit quality and ratio, and different vegetation onset. With regard to the vegetation onset, selections XIV/98 and XVIII/03 belong to early selections, XIX/01 and VII/04 to middle, whereas VIII/91 is a late selection. All selections have exhibited excellent resistance not only to low winter temperatures but also to pathogenic causal agents of walnut diseases Gnomonia leptostyla and Xantomonas juglandis. Regardless of weather conditions, the leaf is very healthy. Fruits are very attractive, the shell is smooth, mid-firm and the suture is well sealed. The kernel is tasty, light coloured, separating easily from the shell. Studied selections highly surpass standard walnut cultivars. | |
Download Adobe Acrobat Reader (free software to read PDF files) | |
