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פותח על ידי קלירמאש פתרונות בע"מ -
The response of nectarine fruit size and midday stem water potential to irrigation level in stage III and crop load
Year:
2001
Authors :
קליין, יצחק
;
.
Volume :
126
Co-Authors:
Naor, A., Golan Research Institute, P.O. Box 97, Kazrin 12900, Israel
Hupert, H., Golan Research Institute, P.O. Box 97, Kazrin 12900, Israel
Greenblat, Y., Golan Research Institute, P.O. Box 97, Kazrin 12900, Israel
Peres, M., Golan Research Institute, P.O. Box 97, Kazrin 12900, Israel
Kaufman, A., Golan Research Institute, P.O. Box 97, Kazrin 12900, Israel
Klein, I., Golan Research Institute, P.O. Box 97, Kazrin 12900, Israel
Facilitators :
From page:
140
To page:
143
(
Total pages:
4
)
Abstract:
The interactions between irrigation and crop level with respect to fruit size distribution and midday stem water potential were investigated for 3 years in a nectarine (Prunus persica L. 'Fairlane') orchard located in a semi-arid zone. Wide ranges of crop loads and irrigation rates in stage III were employed, extending from practically nonlimiting to severely limiting levels. Irrigation during stage III of fruit growth ranged from 0.63 to 1.29 of potential evapotranspiration (ETp). Fruit were hand thinned to a wide range of fruit levels (300 to 2000) fruit/tree in the 555-tree/ha orchard. The yields and stem water potentials from 1996, 1997 and 1998 were combined together and the interrelations among yield, crop load and stem water potential were examined. Fruit <55 mm in diameter growing at 400 fruit per tree were the only ones not affected by irrigation level. The yield of fruit of 60 to 75 mm in diameter increased with irrigation level, but only a slight increase was observed when the irrigation rate rose above 1.01 ETp. A significant decrease in the yields of 60 to 65, 65 to 70, and 70 to 75-mm size grades occurred at crop levels greater than 1000, 800, and 400 fruit per tree, respectively. Midday stem water potential decreased with increasing crop level, and it is suggested that midday stem water potential responds to crop load rather than crop level. Relative yields of the various size grades were highly correlated with midday stem water potential. It was suggested that the midday stem water potential integrates the combined effects of water stress and crop load on nectarine fruit size.
Note:
Related Files :
Crop load
irrigation
Nectarine
Prunus persica
water potential
water stress
עוד תגיות
תוכן קשור
More details
DOI :
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
26532
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:23
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Scientific Publication
The response of nectarine fruit size and midday stem water potential to irrigation level in stage III and crop load
126
Naor, A., Golan Research Institute, P.O. Box 97, Kazrin 12900, Israel
Hupert, H., Golan Research Institute, P.O. Box 97, Kazrin 12900, Israel
Greenblat, Y., Golan Research Institute, P.O. Box 97, Kazrin 12900, Israel
Peres, M., Golan Research Institute, P.O. Box 97, Kazrin 12900, Israel
Kaufman, A., Golan Research Institute, P.O. Box 97, Kazrin 12900, Israel
Klein, I., Golan Research Institute, P.O. Box 97, Kazrin 12900, Israel
The response of nectarine fruit size and midday stem water potential to irrigation level in stage III and crop load
The interactions between irrigation and crop level with respect to fruit size distribution and midday stem water potential were investigated for 3 years in a nectarine (Prunus persica L. 'Fairlane') orchard located in a semi-arid zone. Wide ranges of crop loads and irrigation rates in stage III were employed, extending from practically nonlimiting to severely limiting levels. Irrigation during stage III of fruit growth ranged from 0.63 to 1.29 of potential evapotranspiration (ETp). Fruit were hand thinned to a wide range of fruit levels (300 to 2000) fruit/tree in the 555-tree/ha orchard. The yields and stem water potentials from 1996, 1997 and 1998 were combined together and the interrelations among yield, crop load and stem water potential were examined. Fruit <55 mm in diameter growing at 400 fruit per tree were the only ones not affected by irrigation level. The yield of fruit of 60 to 75 mm in diameter increased with irrigation level, but only a slight increase was observed when the irrigation rate rose above 1.01 ETp. A significant decrease in the yields of 60 to 65, 65 to 70, and 70 to 75-mm size grades occurred at crop levels greater than 1000, 800, and 400 fruit per tree, respectively. Midday stem water potential decreased with increasing crop level, and it is suggested that midday stem water potential responds to crop load rather than crop level. Relative yields of the various size grades were highly correlated with midday stem water potential. It was suggested that the midday stem water potential integrates the combined effects of water stress and crop load on nectarine fruit size.
Scientific Publication
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