FIELD: agriculture. SUBSTANCE: method involves using current year growth rate values as plant diagnostics; under controlled conditions in greenhouse, at bud growing stage, determining nucleic acid RNA/DNA ratio in buds (genotype activity factor) at optimum soil moisture content of 75-80% of normal water content and upon short-term stopping of irrigation, when soil moisture content is reduced to 60-65% of normal water content; calculating drought resistance from formula: 
where Cd is drought resistance of fruit crop sorts; AGc is control genotype activity factor; AGt is test genotype activity factor; comparing obtained results; considering fruit crop as drought resistant, when Cd does not exceed 22-25%. EFFECT: provision for obtaining reliable results and simplified drought resistance diagnostics. 1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR PRELIMINARY SELECTION OF NEW GENOTYPES OF CLONE ROOTSTOCKS OF APPLE TREES BY QUANTITATIVE DETERMINATION IN THE NURSERY OF THE GROWTH STRENGTH INDEX OF GRAFT-ROOTSTOCK COMBINATIONS OBTAINED ON THEIR BASIS | 2022 |
|
RU2789754C1 |
| METHOD FOR DIAGNOSING OF ADAPTABILITY POTENTIAL OF FRUIT CROP SORTS | 2005 |
|
RU2305930C2 |
| METHOD OF ASSESSMENT OF DROUGHT-RESISTANCE OF FRUIT CROPS | 0 |
|
SU1739914A1 |
| METHOD FOR GROWING OF HIGH-ADAPTATION FRUIT GARDEN | 2003 |
|
RU2239987C1 |
| METHOD OF EARLY DIAGNOSIS OF PHYSIOLOGICAL COMPATIBILITY OF SEEDLING STOCK AND GRAFTING OF FRUIT CULTURES | 0 |
|
SU1271450A1 |
| AGENT FOR RICE PLANT RESISTANCE INCREASE TO SALINIZATION, FRUIT KERNEL CULTURES AND SUGAR BEET TO THE DROUGHT AND WINTER WHEAT TO THE DROUGHT AND FUNGOUS DISEASE DAMAGE | 1992 |
|
RU2042326C1 |
| METHOD OF DIAGNOSIS OF GROWTH STENGTH OF FRUIT CROP STOCKS | 0 |
|
SU1576040A1 |
| FRUIT CULTURE FROST RESISTANCE DIAGNOSIS METHOD | 1992 |
|
RU2056737C1 |
| METHOD OF SPRAY FEEDING IN SEED- TYPE VARIETIES | 2000 |
|
RU2181534C2 |
| METHOD OF GROWING INTENSIVE APPLE GARDEN | 2014 |
|
RU2566441C1 |
