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The Exploitation of Root-sourced Signals to Reduce Irrigation and to Regulate Leaf Growth of Pepper Plants Capsicum annuum L.

The effect of partial root drying (PRD) on growth and physiological responses of pepper plants Capsicum annuum L. cultivar MC12 was investigated under high temperatures and a humid tropical climate. The leaf water potential, photosynthetic rate, stomatal conductance and transpiration rate of Capsicu...

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Main Authors: Awad, Mohamed Hamad, Ismail, Mohd Razi, Mahmood, Maziah, Tengku Muda Mohamed, Mahmud
Format: Article
Language:English
English
Published: Universiti Putra Malaysia Press 2002
Online Access:http://psasir.upm.edu.my/id/eprint/3422/1/The_Exploitation_of_Root-sourced_Signals_to_Reduce_Irrigation_and_to.pdf
http://psasir.upm.edu.my/id/eprint/3422/
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spelling my.upm.eprints.34222013-05-27T07:08:24Z http://psasir.upm.edu.my/id/eprint/3422/ The Exploitation of Root-sourced Signals to Reduce Irrigation and to Regulate Leaf Growth of Pepper Plants Capsicum annuum L. Awad, Mohamed Hamad Ismail, Mohd Razi Mahmood, Maziah Tengku Muda Mohamed, Mahmud The effect of partial root drying (PRD) on growth and physiological responses of pepper plants Capsicum annuum L. cultivar MC12 was investigated under high temperatures and a humid tropical climate. The leaf water potential, photosynthetic rate, stomatal conductance and transpiration rate of Capsicum plants grown under PRD over a period of 10 days were lower than those grown under well watered conditions. Removal of the droughted roots resulted in resumption of all leaf gas exchange parameters confirming the presence of signals coming directly from the droughted roots. Leaf growth rate was negatively affected by PRD techniques; as a consequence leaf area per plant was reduced. Total fruit yield ofPRD plants was about 73% of the control plants' fruit yield while the amount of water added to the PRD plants was half the quantity added to the controls. Universiti Putra Malaysia Press 2002 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/3422/1/The_Exploitation_of_Root-sourced_Signals_to_Reduce_Irrigation_and_to.pdf Awad, Mohamed Hamad and Ismail, Mohd Razi and Mahmood, Maziah and Tengku Muda Mohamed, Mahmud (2002) The Exploitation of Root-sourced Signals to Reduce Irrigation and to Regulate Leaf Growth of Pepper Plants Capsicum annuum L. Pertanika Journal of Tropical Agricultural Science, 25 (2). pp. 131-141. ISSN 1511-3701 English
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
English
description The effect of partial root drying (PRD) on growth and physiological responses of pepper plants Capsicum annuum L. cultivar MC12 was investigated under high temperatures and a humid tropical climate. The leaf water potential, photosynthetic rate, stomatal conductance and transpiration rate of Capsicum plants grown under PRD over a period of 10 days were lower than those grown under well watered conditions. Removal of the droughted roots resulted in resumption of all leaf gas exchange parameters confirming the presence of signals coming directly from the droughted roots. Leaf growth rate was negatively affected by PRD techniques; as a consequence leaf area per plant was reduced. Total fruit yield ofPRD plants was about 73% of the control plants' fruit yield while the amount of water added to the PRD plants was half the quantity added to the controls.
format Article
author Awad, Mohamed Hamad
Ismail, Mohd Razi
Mahmood, Maziah
Tengku Muda Mohamed, Mahmud
spellingShingle Awad, Mohamed Hamad
Ismail, Mohd Razi
Mahmood, Maziah
Tengku Muda Mohamed, Mahmud
The Exploitation of Root-sourced Signals to Reduce Irrigation and to Regulate Leaf Growth of Pepper Plants Capsicum annuum L.
author_facet Awad, Mohamed Hamad
Ismail, Mohd Razi
Mahmood, Maziah
Tengku Muda Mohamed, Mahmud
author_sort Awad, Mohamed Hamad
title The Exploitation of Root-sourced Signals to Reduce Irrigation and to Regulate Leaf Growth of Pepper Plants Capsicum annuum L.
title_short The Exploitation of Root-sourced Signals to Reduce Irrigation and to Regulate Leaf Growth of Pepper Plants Capsicum annuum L.
title_full The Exploitation of Root-sourced Signals to Reduce Irrigation and to Regulate Leaf Growth of Pepper Plants Capsicum annuum L.
title_fullStr The Exploitation of Root-sourced Signals to Reduce Irrigation and to Regulate Leaf Growth of Pepper Plants Capsicum annuum L.
title_full_unstemmed The Exploitation of Root-sourced Signals to Reduce Irrigation and to Regulate Leaf Growth of Pepper Plants Capsicum annuum L.
title_sort exploitation of root-sourced signals to reduce irrigation and to regulate leaf growth of pepper plants capsicum annuum l.
publisher Universiti Putra Malaysia Press
publishDate 2002
url http://psasir.upm.edu.my/id/eprint/3422/1/The_Exploitation_of_Root-sourced_Signals_to_Reduce_Irrigation_and_to.pdf
http://psasir.upm.edu.my/id/eprint/3422/
_version_ 1643822606863826944
score 13.211869

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