Sympodial orchid water stress detection via stem / Mohd Khairi Nordin

The measurements of stems play an important indicator for plants’ water status. Many researches have been done in terrestrial plants to investigate the stems’ variation responses that inspired to develop a precise irrigation system. Hence, the works presented in this thesis were the investigations o...

Full description

Bibliographic Details
Main Author:	Nordin, Mohd Khairi
Format:	Thesis
Language:	English
Published:	2014
Subjects:	Irrigation farming Water supply for domestic and industrial purposes
Online Access:	http://ir.uitm.edu.my/id/eprint/14046/ http://ir.uitm.edu.my/id/eprint/14046/1/TM_MOHD%20KHAIRI%20NORDIN%20EE%2014_5.pdf

id	uitm-14046
recordtype	eprints
spelling	uitm-140462016-06-27T06:51:36Z http://ir.uitm.edu.my/id/eprint/14046/ Sympodial orchid water stress detection via stem / Mohd Khairi Nordin Nordin, Mohd Khairi Irrigation farming Water supply for domestic and industrial purposes The measurements of stems play an important indicator for plants’ water status. Many researches have been done in terrestrial plants to investigate the stems’ variation responses that inspired to develop a precise irrigation system. Hence, the works presented in this thesis were the investigations of the stems’ variations in epiphyte plants which were sympodial orchids using PIC based instrumentation sensors. A strain gauge was used as a sensor to measure the orchid’s stem variation for a duration of 25th October 2012 until 27th November 2012 and from the 3rd December 2012 until 19th December 2012. The other sensors were used for humidity, temperature and light measurement integrated with PIC instrumentation circuit. The Dendrobium orchid that grew from tissue culture was chosen as a sampling plant due to its popularity and demand as a cut flower in the world. Two experiments were executed within 30 days and 16 days respectively, which had involved 14 samples of orchid plants growing indoor and outdoor. The measurements were recorded every 15 minutes continuously along the experiments executed. The 2 mm aluminium strain gauge and it’s signal conditioning that integrated with PIC produced a significant correlation at 0.99 between its output and the changes in displacement. The results showed that the proposed instrumentation was capable to detect the stem’s diameter changes and those studies have had significant impacts for triggering further researches in the developments of precise watering systems in orchid farms. 2014 Thesis NonPeerReviewed text en http://ir.uitm.edu.my/id/eprint/14046/1/TM_MOHD%20KHAIRI%20NORDIN%20EE%2014_5.pdf Nordin, Mohd Khairi (2014) Sympodial orchid water stress detection via stem / Mohd Khairi Nordin. Masters thesis, Universiti Teknologi MARA.
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Teknologi MARA
building	UiTM Institutional Repository
collection	Online Access
language	English
topic	Irrigation farming Water supply for domestic and industrial purposes
spellingShingle	Irrigation farming Water supply for domestic and industrial purposes Nordin, Mohd Khairi Sympodial orchid water stress detection via stem / Mohd Khairi Nordin
description	The measurements of stems play an important indicator for plants’ water status. Many researches have been done in terrestrial plants to investigate the stems’ variation responses that inspired to develop a precise irrigation system. Hence, the works presented in this thesis were the investigations of the stems’ variations in epiphyte plants which were sympodial orchids using PIC based instrumentation sensors. A strain gauge was used as a sensor to measure the orchid’s stem variation for a duration of 25th October 2012 until 27th November 2012 and from the 3rd December 2012 until 19th December 2012. The other sensors were used for humidity, temperature and light measurement integrated with PIC instrumentation circuit. The Dendrobium orchid that grew from tissue culture was chosen as a sampling plant due to its popularity and demand as a cut flower in the world. Two experiments were executed within 30 days and 16 days respectively, which had involved 14 samples of orchid plants growing indoor and outdoor. The measurements were recorded every 15 minutes continuously along the experiments executed. The 2 mm aluminium strain gauge and it’s signal conditioning that integrated with PIC produced a significant correlation at 0.99 between its output and the changes in displacement. The results showed that the proposed instrumentation was capable to detect the stem’s diameter changes and those studies have had significant impacts for triggering further researches in the developments of precise watering systems in orchid farms.
format	Thesis
author	Nordin, Mohd Khairi
author_facet	Nordin, Mohd Khairi
author_sort	Nordin, Mohd Khairi
title	Sympodial orchid water stress detection via stem / Mohd Khairi Nordin
title_short	Sympodial orchid water stress detection via stem / Mohd Khairi Nordin
title_full	Sympodial orchid water stress detection via stem / Mohd Khairi Nordin
title_fullStr	Sympodial orchid water stress detection via stem / Mohd Khairi Nordin
title_full_unstemmed	Sympodial orchid water stress detection via stem / Mohd Khairi Nordin
title_sort	sympodial orchid water stress detection via stem / mohd khairi nordin
publishDate	2014
url	http://ir.uitm.edu.my/id/eprint/14046/ http://ir.uitm.edu.my/id/eprint/14046/1/TM_MOHD%20KHAIRI%20NORDIN%20EE%2014_5.pdf
first_indexed	2023-09-18T22:50:45Z
last_indexed	2023-09-18T22:50:45Z
_version_	1777417527556571136

Sympodial orchid water stress detection via stem / Mohd Khairi Nordin

Similar Items