נגישות
menu      
חיפוש מתקדם
תחביר
חפש...
הספר "אוצר וולקני"
אודות
תנאי שימוש
ניהול
קהילה:
אסיף מאגר המחקר החקלאי
פותח על ידי קלירמאש פתרונות בע"מ -
Phosphorous nutritional level, carbohydrate reserves and flower quality in olives
Year:
2016
Source of publication :
PLoS ONE
Authors :
אראל, רן
;
.
בן-גל, אלון
;
.
דג, ארנון
;
.
יסעור, חגי
;
.
ירמיהו, אורי
;
.
צ'אמוס, דן כהן
;
.
Volume :
11
Co-Authors:
Erel, R., Gilat Research Center, Agricultural Research Organization of Israel, Israel
Yermiyahu, U., Gilat Research Center, Agricultural Research Organization of Israel, Israel
Yasuor, H., Gilat Research Center, Agricultural Research Organization of Israel, Israel
Chamus, D.C., Gilat Research Center, Agricultural Research Organization of Israel, Israel
Schwartz, A., Institute of Plant Sciences and Genetics in Agriculture, Robert H. Smith Faculty of Agriculture, Food and Environment, Hebrew University of Jerusalem, Rehovot, Israel
Ben-Gal, A., Gilat Research Center, Agricultural Research Organization of Israel, Israel
Dag, A., Gilat Research Center, Agricultural Research Organization of Israel, Israel
Facilitators :
From page:
0
To page:
0
(
Total pages:
1
)
Abstract:
The olive tree is generally characterized by relatively low final fruit set consequential to a significant rate of undeveloped pistils, pistil abortion, and flower and fruitlet abscission. These processes are acknowledged to be governed by competition for resources between the developing vegetative and reproductive organs. To study the role of phosphorus (P) nutritional level on reproductive development, trees were grown under four levels of P for three years in large containers. Phosphorus nutritional level was positively related to rate of reproductive bud break, inflorescence weight, rate of hermaphrodite flowers, pistil weight, fruitlet persistence, fruit set and the consequential total number of fruits. The positive impact of P nutrition on the productivity parameters was not related to carbohydrate reserves or to carbohydrate transport to the developing inflorescence. Phosphorous deficient trees showed significant impairment of assimilation rate, and yet, carbohydrates were accumulated in inflorescences at levels comparable to or higher than trees receiving high P. In contrast to female reproductive organs, pollen viability was consistently higher in P deficient trees, possibly due to the enhanced carbohydrate availability. Overall, the positive effect of P on female reproductive development was found to be independent of the total carbohydrate availability. Hence, P is speculated to have a direct influence on reproductive processes. © 2016 Erel et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Note:
Related Files :
carbohydrate metabolism
Growth, Development and Aging
metabolism
Olea
plant development
Reproduction
עוד תגיות
תוכן קשור
More details
DOI :
10.1371/journal.pone.0167591
Article number:
0
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
31212
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 01:00
Scientific Publication
Phosphorous nutritional level, carbohydrate reserves and flower quality in olives
11
Erel, R., Gilat Research Center, Agricultural Research Organization of Israel, Israel
Yermiyahu, U., Gilat Research Center, Agricultural Research Organization of Israel, Israel
Yasuor, H., Gilat Research Center, Agricultural Research Organization of Israel, Israel
Chamus, D.C., Gilat Research Center, Agricultural Research Organization of Israel, Israel
Schwartz, A., Institute of Plant Sciences and Genetics in Agriculture, Robert H. Smith Faculty of Agriculture, Food and Environment, Hebrew University of Jerusalem, Rehovot, Israel
Ben-Gal, A., Gilat Research Center, Agricultural Research Organization of Israel, Israel
Dag, A., Gilat Research Center, Agricultural Research Organization of Israel, Israel
Phosphorous nutritional level, carbohydrate reserves and flower quality in olives
The olive tree is generally characterized by relatively low final fruit set consequential to a significant rate of undeveloped pistils, pistil abortion, and flower and fruitlet abscission. These processes are acknowledged to be governed by competition for resources between the developing vegetative and reproductive organs. To study the role of phosphorus (P) nutritional level on reproductive development, trees were grown under four levels of P for three years in large containers. Phosphorus nutritional level was positively related to rate of reproductive bud break, inflorescence weight, rate of hermaphrodite flowers, pistil weight, fruitlet persistence, fruit set and the consequential total number of fruits. The positive impact of P nutrition on the productivity parameters was not related to carbohydrate reserves or to carbohydrate transport to the developing inflorescence. Phosphorous deficient trees showed significant impairment of assimilation rate, and yet, carbohydrates were accumulated in inflorescences at levels comparable to or higher than trees receiving high P. In contrast to female reproductive organs, pollen viability was consistently higher in P deficient trees, possibly due to the enhanced carbohydrate availability. Overall, the positive effect of P on female reproductive development was found to be independent of the total carbohydrate availability. Hence, P is speculated to have a direct influence on reproductive processes. © 2016 Erel et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Scientific Publication
You may also be interested in