Effects of temperature and potassium chlorate on leaf gas exchange and flowering in longan

The effects of low temperature and potassium chlorate (KClO 3 ) on leaf gas exchange and flowering of sixty four grafted longan trees cv. 'Daw' (Dimocarpus longan Lour.) were investigated. The longan trees were kept in two growth chambers under low temperature (17/12°C day/night), high tem...

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Main Authors: Sritontip C., Tiyayon P., Hegele M., Sruamsiri P., Naphrom D., Manochai P., Wünsche J.
Format: Book Series
Published: 2017
Online Access:https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=77957342570&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/43309
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-433092017-09-28T06:54:03Z Effects of temperature and potassium chlorate on leaf gas exchange and flowering in longan Sritontip C. Tiyayon P. Hegele M. Sruamsiri P. Naphrom D. Manochai P. Wünsche J. The effects of low temperature and potassium chlorate (KClO 3 ) on leaf gas exchange and flowering of sixty four grafted longan trees cv. 'Daw' (Dimocarpus longan Lour.) were investigated. The longan trees were kept in two growth chambers under low temperature (17/12°C day/night), high temperature (30/25°C day/night) half of the trees in each room were treated with KClO 3 , respectively. The results showed that flower emergence in longan occurred 37 days following low temperature and high temperature exposure with KClO 3 treatment, while low temperature with KClO 3 delayed flowering and high temperature exposure completely inhibited flowering. Efficiency of photosystem II (Fv/Fm) as well as leaf net CO 2 assimilation rate decreased under low temperature and KClO 3 treatments, when compared to the high temperature treatments. Transpiration rate and stomatal conductance were both reduced in low temperature no matter whether KClO 3 was applied. After 28 days, when temperature in low temperature treatments were increased, net CO 2 assimilation rate, transpiration rate and stomatal conductance also increased to similar values found in high temperature treatments. Both temperature and KClO 3 treatments did not affect the chlorophyll content of longan leaves. 2017-09-28T06:54:03Z 2017-09-28T06:54:03Z 2010-05-13 Book Series 05677572 2-s2.0-77957342570 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=77957342570&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/43309
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
description The effects of low temperature and potassium chlorate (KClO 3 ) on leaf gas exchange and flowering of sixty four grafted longan trees cv. 'Daw' (Dimocarpus longan Lour.) were investigated. The longan trees were kept in two growth chambers under low temperature (17/12°C day/night), high temperature (30/25°C day/night) half of the trees in each room were treated with KClO 3 , respectively. The results showed that flower emergence in longan occurred 37 days following low temperature and high temperature exposure with KClO 3 treatment, while low temperature with KClO 3 delayed flowering and high temperature exposure completely inhibited flowering. Efficiency of photosystem II (Fv/Fm) as well as leaf net CO 2 assimilation rate decreased under low temperature and KClO 3 treatments, when compared to the high temperature treatments. Transpiration rate and stomatal conductance were both reduced in low temperature no matter whether KClO 3 was applied. After 28 days, when temperature in low temperature treatments were increased, net CO 2 assimilation rate, transpiration rate and stomatal conductance also increased to similar values found in high temperature treatments. Both temperature and KClO 3 treatments did not affect the chlorophyll content of longan leaves.
format Book Series
author Sritontip C.
Tiyayon P.
Hegele M.
Sruamsiri P.
Naphrom D.
Manochai P.
Wünsche J.
spellingShingle Sritontip C.
Tiyayon P.
Hegele M.
Sruamsiri P.
Naphrom D.
Manochai P.
Wünsche J.
Effects of temperature and potassium chlorate on leaf gas exchange and flowering in longan
author_facet Sritontip C.
Tiyayon P.
Hegele M.
Sruamsiri P.
Naphrom D.
Manochai P.
Wünsche J.
author_sort Sritontip C.
title Effects of temperature and potassium chlorate on leaf gas exchange and flowering in longan
title_short Effects of temperature and potassium chlorate on leaf gas exchange and flowering in longan
title_full Effects of temperature and potassium chlorate on leaf gas exchange and flowering in longan
title_fullStr Effects of temperature and potassium chlorate on leaf gas exchange and flowering in longan
title_full_unstemmed Effects of temperature and potassium chlorate on leaf gas exchange and flowering in longan
title_sort effects of temperature and potassium chlorate on leaf gas exchange and flowering in longan
publishDate 2017
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=77957342570&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/43309
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