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Latest Inventions  Agriculture METHOD OF DETERMINING FROST-RESISTANCE OF WINTER GRAIN CROPS
METHOD OF DETERMINING
FROST-RESISTANCE OF WINTER GRAIN CROPS
FIELD: agriculture.
SUBSTANCE: method of determining frost-resistance of winter grain crops includes
exposing plant leaves to frost. Leaves of plants under
investigation are glued on adhesive tape - Scotch tape, top of the leaves 3-4 mm
wide is cut off as control, the remaining leave fragments are placed between two
metal plates into freezer. Exposure to frost is first carried out starting with
temperature -13°C with gradual lowering of the latter on 1°C per hour during 6
hours. Further, in definite periods of time part of adhesive tape 2-3 mm wide is
cut off with leaf fragments and placed into reservoir with 0.1-0.5% rezorcin
solution, which colours killed by frost fragments of leaves into dark-blue
colour, the remaining part of the tape with leaves is placed back into freezer
for further exposure to frost. As evaluating frost-resistance index, time of
exposure to frost, during which irreversible injury of leaves fragments by frost
takes place.
EFFECT: claimed invention ensures simplification of method of determining plant
frost- resistance, reduction of its duration and increase of
productivity. 2 cl, 3 ex, 2 tbl, 2 dwg
Inventor(s):
Razmakhnin Evgenij Petrovich (RU), Razmakhnina Tat'jana Matveevna (RU), Chekurov
Viktor Mikhajlovich (RU), Kozlov Viktor Egorovich (RU
Publishing date: November 21, 2009
To make the order on reception of the complete information under the invention, interesting for you
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