Cryoprotectants influence freezing resistance of grapevine bud and leaf tissue

Several cryoprotectant chemicals were tested for their ability to increase the freeze resistance of grapevine (Vitis labruscana Bailey) leaf and dormant bud tissue. DuPont Surfactant WK, ethylene glycol, and BRIJ 35 were effective in lowering the low-temperature exotherm (LTE) in 'Concord'...

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Bibliographic Details
Published inHortScience Vol. 26; no. 4; pp. 406 - 407
Main Authors Pool, R.M. (Auburn University, AL), McInnis, P.J
Format Journal Article
LanguageEnglish
Published Alexandria, VA American Society for Horticultural Science 01.04.1991
Subjects
Agronomy. Soil science and plant productions
Biological and medical sciences
BOURGEON
FEUILLE
Fundamental and applied biological sciences. Psychology
GEL
HELADA
HOJAS
Phytopathology. Animal pests. Plant and forest protection
RESISTANCE A LA TEMPERATURE
RESISTENCIA A LA TEMPERATURA
VITIS LABRUSCA
Weather damages
Weather damages. Fires
YEMA (PLANTA)
Bud
Fruit crop
Vitidaceae
Chemical treatment
Dicotyledones
Angiospermae
Spermatophyta
Plant leaf
Cryoprotective agent
Frost prevention
Frost resistance
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Summary:Several cryoprotectant chemicals were tested for their ability to increase the freeze resistance of grapevine (Vitis labruscana Bailey) leaf and dormant bud tissue. DuPont Surfactant WK, ethylene glycol, and BRIJ 35 were effective in lowering the low-temperature exotherm (LTE) in 'Concord' grape buds below controls by 5.4, 5.1, and 3.9C, respectively, in March. Measurements taken in April showed BRIJ 35 and Surfactant WK to be notably superior to the other products, giving LTEs 14.1 and 12.2C below controls, respectively. Ethylene glycol, Frostguard, and Frost Free were less effective. LTEs were also significantly decreased in grape leaf disks 4.1C by BRIJ 35, 2.1C by Frostguard, and 0.4C by Frost Free treatments
Bibliography:H50
F01
9127310
ISSN:0018-5345
2327-9834
DOI:10.21273/HORTSCI.26.4.406