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
Title | Year | Author | Number |
---|---|---|---|
METHOD FOR DETERMINATION OF POTENTIAL WINTER HARDINESS OF SOFT WINTER WHEAT | 2017 |
|
RU2652390C1 |
METHOD OF DETERMINING FROST-RESISTANCE OF WINTER BARLEY | 2011 |
|
RU2471340C1 |
PLANT FREEZE RESISTANCE-IMPROVING AGENT | 2004 |
|
RU2264070C1 |
METHOD OF DETERMINING FROST RESISTANCE OF WINTER WHEAT | 0 |
|
SU869672A1 |
PLANT FROST-RESISTANCE EVALUATING METHOD | 1998 |
|
RU2143194C1 |
METHOD OF PRE-SOWING TESTING OF WINTER GRAIN CROP SEEDS | 0 |
|
SU1493222A1 |
METHOD FOR EVALUATING FROST RESISTANCE OF WINTER WHEAT | 2000 |
|
RU2198504C2 |
METHOD OF DETERMINING FREEZE RESISTANCE OF WINTER BARLEY | 2012 |
|
RU2479991C1 |
METHOD FOR SELECTION OF WINTER WHEAT FORMS RESISTANT TO RUST DISEASES WHOSE PARENTS DIFFER IN FROST RESISTANCE | 1993 |
|
RU2025961C1 |
METHOD FOR ASSESSING FROST RESISTANCE OF WINTER WHEAT PLANTS | 1991 |
|
RU2025941C1 |
Authors
Dates
2009-10-27—Published
2008-06-04—Filed