Abstract
Given the high value of Juglans nuts, the increase in their production should not only be due to the identification and breeding of the best forms, but also by shifting the established border of cultivation to the North. In this regard, the main purpose of the work is to study and analyze the adaptive characteristics of plants in winter. The paper considers garden, park and field protection plantations, plantations, landscape groups and stand-alone trees of Juglans family nuts on adaptive signs of frost resistance and frost stability, as well as the most stable forms, which should form the basis of the breeding fund. Comparison of resistance of the genus Juglans to the various factors of ethnology gives the following results: decreasing resistance to low negative temperatures, plants can be placed as J. cenerea, J. manshurica, J. nigra, J. cordiformis, J. regia.
Highlights
Given the high value of nuts of the genus Juglans, the increase of production must come by identifying and breeding the best varieties and forms, and by shifting the limits of cultivation to the North, in "new" regions, where nut culture was not widespread
Juglans regia exhibits the weakest resistance to low negative temperatures compared to other kind of nuts studies
With full accordance with the growth conditions, Juglans regia can be used as a fruit crop
Summary
1 приведены средние показатели морозостойкости и морозоустойчивости для изучаемых видов орехов рода Juglans в Воронежской области. Из таблицы 1 следует, что средние показатели морозоустойчивости ореха грецкого в Воронежской области составляют 2,12 балла и, исходя из этого, нельзя говорить об этом виде в целом, как об очень устойчивой породе. 1. Морозоустойчивость и морозостойкость орехов рода Juglans в Воронежской области. Наиболее приспособленным к зимним условиям Воронежской области является орех серый морозоустойчивости и морозостойкости соответственно равны 1, 83 и 1,79 балла. 1 графически показаны средние значения морозостойкости и морозоустойчивости орехов рода Juglans. 3. Для установления корреляционной зависиустойчивости и морозостойкости орехов маньмости в расчет были приняты зимы, когда миничжурского, черного и серого не превышают станмальная температура воздуха опускалась до –20°С дартный критерий Стьюдента (t0,05) и варьируют от 0,17 до 1,38.
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