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פותח על ידי קלירמאש פתרונות בע"מ -
Effects of climatic conditions in polyethylene-covered structures on gray mold disease of winter cucumbers
Year:
1988
Authors :
אלעד, יגאל
;
.
יוניס, הישאם
;
.
Volume :
3
Co-Authors:

Y. Mahrer

Facilitators :
From page:
243
To page:
247
(
Total pages:
5
)
Abstract:

Gray mold disease caused by Botrytis cinerea Pers. is a constant threat to winter-grown cucumber. Cucumber plants were grown in 24 commerical greenhouses covered with either ultraviolet absorbing (UVA) polyethylene or with one of five different brands of infrared absorbing (IRA) polyethylene sheets. During the relatively dry winter of 1985-1986, disease development in the plant canopy was limited due to nonpersistence of dew. Disease severity under the different IRA sheets was closely correlated with number of dew hours (r = 0.965). During the rainy winter season of 1986-1987, dew persistence was greater and the gray mold epidemic was correlated with cumulative degree hours around the optimum for disease development, i.e., 15-25 degrees C. It can be concluded that epidemics are influenced by air temperature, relative humidity, and dew duration on the canopy. On the one hand the IRA plastics reduce dew duration on plants, but on the other hand they extend the period of time of temperatures around the optimum for occurence of epidemics.

Note:
Related Files :
Botrytis cinerea
Climatic conditions
Cucumbers
gray mold
plant diseases and disorders
plant protection
polyethylene
עוד תגיות
תוכן קשור
More details
DOI :
Article number:
0
Affiliations:
Database:
גוגל סקולר
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
37535
Last updated date:
02/03/2022 17:27
Creation date:
10/10/2018 14:38
You may also be interested in
Scientific Publication
Effects of climatic conditions in polyethylene-covered structures on gray mold disease of winter cucumbers
3

Y. Mahrer

Gray mold disease caused by Botrytis cinerea Pers. is a constant threat to winter-grown cucumber. Cucumber plants were grown in 24 commerical greenhouses covered with either ultraviolet absorbing (UVA) polyethylene or with one of five different brands of infrared absorbing (IRA) polyethylene sheets. During the relatively dry winter of 1985-1986, disease development in the plant canopy was limited due to nonpersistence of dew. Disease severity under the different IRA sheets was closely correlated with number of dew hours (r = 0.965). During the rainy winter season of 1986-1987, dew persistence was greater and the gray mold epidemic was correlated with cumulative degree hours around the optimum for disease development, i.e., 15-25 degrees C. It can be concluded that epidemics are influenced by air temperature, relative humidity, and dew duration on the canopy. On the one hand the IRA plastics reduce dew duration on plants, but on the other hand they extend the period of time of temperatures around the optimum for occurence of epidemics.

Scientific Publication
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