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פותח על ידי קלירמאש פתרונות בע"מ -
New approaches for post-harvest inhibition of undesired gravitropic bending in various snapdragon (Antirrhinum majus L.) cultivars
Year:
2005
Authors :
מאיר, שמעון
;
.
פילוסוף-הדס, סוניה
;
.
פרידמן, חיה
;
.
Volume :
80
Co-Authors:
Friedman, H., Department of Postharvest Science of Fresh Produce, Agricultural Research Organization, Volcani Center, Bet Dagan 50250, Israel
Zhang, Z., Department of Postharvest Science of Fresh Produce, Agricultural Research Organization, Volcani Center, Bet Dagan 50250, Israel, College of Horticulture, South China Agricultural University, 510642 Guangzhou, China
Meir, S., Department of Postharvest Science of Fresh Produce, Agricultural Research Organization, Volcani Center, Bet Dagan 50250, Israel
Halevy, A.H., Robert H. Smith Institute for Plant Sciences and Genetics in Agriculture, Faculty of Agriculture, Hebrew University of Jerusalem, Rehovot, 76100, Israel
Philosoph-Hadas, S., Department of Postharvest Science of Fresh Produce, Agricultural Research Organization, Volcani Center, Bet Dagan 50250, Israel
Facilitators :
From page:
433
To page:
438
(
Total pages:
6
)
Abstract:
Two approaches were used to study inhibition of the undesirable upward bending of gravistimulated cut flowering stems of snapdragon (Antirrhinum majus L.) following horizontal placement: (1) screening of various cultivars to select those with non-bending spikes following gravistimulation, according to the response of seedlings and their corresponding mature spikes; or (2) developing post-harvest pulsing treatments to prevent or reduce gravitropic bending. The screening approach was unsuccessful, as the bending response of various snapdragon cultivars was strongly dependent on their growth conditions. Hence, the bending responses of seedlings could not be used to predict the bending responses of their corresponding mature spikes. Pulsing with the following chemicals: LaCl3, (a calcium channel blocker), calcium and potassium salts, HCl, weak acids or buffers with pHs ranging from 4.5-8.0, was tested. LaCl3 (20 mM) effectively inhibited bending of all snapdragon cultivars examined, without inflicting any obvious effects on floret opening and wilting. Both CaCl2 and potassium salts enhanced spike bending, suggesting that this effect is not calcium-specific. Pulsing treatments with HCl or citric acid partially inhibited gravitropic bending; however, benzoic acid inhibited it completely. All acids tested increased floret wilting during vase-life. Only buffer solutions with pHs above 6.8 significantly reduced the bending response without affecting flower quality. The results suggest that either 20 mM LaCl3, or buffers with a high pH could successfully inhibit the gravitropic response of snapdragon spikes, without reducing flower quality.
Note:
Related Files :
Antirrhinum
Antirrhinum majus
עוד תגיות
תוכן קשור
More details
DOI :
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
31283
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 01:01
You may also be interested in
Scientific Publication
New approaches for post-harvest inhibition of undesired gravitropic bending in various snapdragon (Antirrhinum majus L.) cultivars
80
Friedman, H., Department of Postharvest Science of Fresh Produce, Agricultural Research Organization, Volcani Center, Bet Dagan 50250, Israel
Zhang, Z., Department of Postharvest Science of Fresh Produce, Agricultural Research Organization, Volcani Center, Bet Dagan 50250, Israel, College of Horticulture, South China Agricultural University, 510642 Guangzhou, China
Meir, S., Department of Postharvest Science of Fresh Produce, Agricultural Research Organization, Volcani Center, Bet Dagan 50250, Israel
Halevy, A.H., Robert H. Smith Institute for Plant Sciences and Genetics in Agriculture, Faculty of Agriculture, Hebrew University of Jerusalem, Rehovot, 76100, Israel
Philosoph-Hadas, S., Department of Postharvest Science of Fresh Produce, Agricultural Research Organization, Volcani Center, Bet Dagan 50250, Israel
New approaches for post-harvest inhibition of undesired gravitropic bending in various snapdragon (Antirrhinum majus L.) cultivars
Two approaches were used to study inhibition of the undesirable upward bending of gravistimulated cut flowering stems of snapdragon (Antirrhinum majus L.) following horizontal placement: (1) screening of various cultivars to select those with non-bending spikes following gravistimulation, according to the response of seedlings and their corresponding mature spikes; or (2) developing post-harvest pulsing treatments to prevent or reduce gravitropic bending. The screening approach was unsuccessful, as the bending response of various snapdragon cultivars was strongly dependent on their growth conditions. Hence, the bending responses of seedlings could not be used to predict the bending responses of their corresponding mature spikes. Pulsing with the following chemicals: LaCl3, (a calcium channel blocker), calcium and potassium salts, HCl, weak acids or buffers with pHs ranging from 4.5-8.0, was tested. LaCl3 (20 mM) effectively inhibited bending of all snapdragon cultivars examined, without inflicting any obvious effects on floret opening and wilting. Both CaCl2 and potassium salts enhanced spike bending, suggesting that this effect is not calcium-specific. Pulsing treatments with HCl or citric acid partially inhibited gravitropic bending; however, benzoic acid inhibited it completely. All acids tested increased floret wilting during vase-life. Only buffer solutions with pHs above 6.8 significantly reduced the bending response without affecting flower quality. The results suggest that either 20 mM LaCl3, or buffers with a high pH could successfully inhibit the gravitropic response of snapdragon spikes, without reducing flower quality.
Scientific Publication
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