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Evaluation of Basic Plants in The Bank of Healthy Potato Varieties in The Northern Region and The High Mountain Zone
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| Author:
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OVES E.V
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| Abstract:
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The purpose of the research was to study the field collection of the Bank of Healthy potato varieties in clean
phytosanitary conditions of the northern region of the Russian Federation and the highlands of the North
Caucasus at an altitude of 2500 m above sea level. The influence of the natural and climatic factor on the
growth, development and yield of 100 varieties of potatoes of different ripening periods was studied. In the
northern region, the presence of day length above 20 h in June-July led to an increase in the interphase periods
of plants. The greatest deviation was noted in the budding phase of varieties of late maturity. Bud formation on
these plants was observed 10 ... 15 days later than in the highlands. The yield of potato varieties depended on
the growing zone and ripening time. In the northern zone, the most productive were early maturing and midearly varieties. With a significant variation in yield (?v=25,8…28,1%) these plants formed 6,9…7,6 tubers each
with an average weight of one tuber 43… 45g. Later varieties formed 4,2 ... 5,1 tubers, but their average
weight did not exceed 33 g. In mountain conditions, all varieties formed from 12,3 to 16,7 tubers with a weight
of one plant from 634 to 838 g. The excess yield of tubers in the mountains in comparison with the northern
zone was 2,1 ... 2,3 times for early and mid-early varieties and 4,0 ... 4,3 times for mid-season and late varieties
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| Keyword:
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Potato; Bank of Healthy potato varieties; basis plant; Northern zone; mountainous area; growth phases; yield
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| EOI:
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| DOI:
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https://doi.org/10.31838/ijpr/2021.13.01.413
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| Download:
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