History and prospects of zoning and registration of walnut (Juglans regia L.) varieties
Journal Title: Plant varieties studying and protection - Year 2018, Vol 14, Issue 2
Abstract
Purpose. To study the history of zoning and registration of walnut varieties in Ukraine. Results. The walnut has occurred in the zoned assortment of 1937 with recommendations for growing in the favourable conditions of the southeast of Ukraine. Due to the absence of approbated walnut varieties it was not discussed about varietal culture. For the first time the walnut variety of national breeding has been zoned only in 1954. In Soviet period walnut varieties were recommended for cultivation in 7 western and southern regions of Ukraine. In the end of ХХ century 4 varieties of H. M. Vysotskyi Ukrainian Research Institution of Forestry and Sylvicultural Reclamation breeding and 9 varieties of Prydnistrovska Experimental Station of Horticulture breeding have been zoned. To boost up the registration of new walnut varieties it have started to carry out according to the applicant’s data, supposing after-registration tests under conditions of various horticultural regions. At this time 10 varieties of the Nikitskyi Botanical Garden breeding and a number of varieties of both the Moldavian (7) and the French (6) breeding have been registered in the State Register of plant varieties. Mass reproduction of new walnut varieties and use them in industrial plantations in the regions without preliminarily tests, have led to a frost-killing of some plantations. Process of registration of new walnut varieties of both national and foreign selection is proceeding and their list will be increase. Conclusions. 52 walnut varieties were zoned or registered in the Ukrainian State Register, including 34 varieties of national selection within 1954–2018. The State Register of plant varieties of Ukraine (on the date 2018) comprises 33 walnut varieties, including 16 varieties of national breeding and 17 varieties of foreign breeding. 19 varieties were excluded from the Register because they were not maintained by their applicants. Geographical dilating for walnut industrial cultivation demands corresponding after-registration testing for reception of authentic results concerning their behavior in the conditions which are distinct from where they have been originated.
Authors and Affiliations
V. M. Mezhenskyj
Keywords
Related Articles
- EP ID EP326393
- DOI 10.21498/2518-1017.14.2.2018.134759
- Views 89
- Downloads 0
Foliar feeding of rootstocks of various cultivars of hazelnuts (Corylus maxima Mill.) in the mother plantation for horizontal vegetative propagation
Purpose. Determination of optimum dozes of foliar feeding for each cultivar that will provide the highest output of standard rootstocks. Methods. Field, analytical and statistical ones. Results. The author presents the...
Features of the formation of sowing qualities of white lupine seeds depending on the harvest time
Purpose. To determine the optimal time for harvesting in nurseries of primary seed production of white lupine. Methods. Field, laboratory and statistical methods of material evaluation were used. Sowing qualities were s...
Researching morphological characters of rye (Secale cereale L.) and sorghum bicolor (Sorghum bicolor L.)
The article highlights key issues of the development of collection of varieties displaying example characteristics of sorghum bicolor and rye. It displays their applicability and value. In order to develop the varietal c...
Peculiarities of the formation of lettuce (Lactuca sativa L.) varieties collection with reference characteristics
Peculiarities of the formation of the collection of lettuce (Lactuca sativa L.) varieties with reference characteristics are considered. Methodological requirements for the formation, grouping, maintenance, use and updat...
Results of the introduction and selection of Nepeta mussinii (Lamiaceae) in the M. M. Gryshko National Botanical Garden of the National Academy of Sciences of Ukraine
Purpose. Create a collection fund and highly adaptive cultivar of the little common plant Nepeta mussinii Spreng. ex Henckel (Lamiaceae Lindl.), suitable for growing in the Forest-Steppe of Ukraine and using as an essent...