Vegetative, reproductive and yield responses of tomato (Lycopersicon esculentum L.) seedlings to low temperature and exogenous sucrose treatments

Persistent Link:
http://hdl.handle.net/10150/278454
Title:
Vegetative, reproductive and yield responses of tomato (Lycopersicon esculentum L.) seedlings to low temperature and exogenous sucrose treatments
Author:
Ibrahim, Abdelaziz Ali Mohamed, 1948-
Issue Date:
1994
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
The effects of subjection of 15-day-old plants of tomato (Lycopersicon esculentum L. 'Contessa') to low night temperature (LNT) of 4°C for up to 21 nights and pre-chilling application of 10% sucrose solution on vegetative, reproductive and yield responses were examined under greenhouse conditions. Chilled seedlings exhibited severe inhibition of growth, with the degree of inhibition increasing with length of chilling. While sucrose treatment (ST) reduced such inhibition and promoted subsequent recovery, it transiently inhibited growth of the unchilled controls. In the long-term, inhibition of growth was observed only for the 0%-sucrose-treated plants cooled for 21 nights. Although LNT lowered the position of the first inflorescence in a direct relation to duration of exposure, this effect was reduced by ST. LNT had no lasting effects on the reproductive and productivity responses of the first two inflorescence (FTI), earliness of flowering, or potential yield and quality. ST promoted flowering of only the 21-day-cooled plants as well as numbers of flowers, fruit set and large fruit responses of FTI. The results indicate that, although early chilling stunts seedling growth, plants may recover at a later favorable temperature without loss to their reproductive capacity or yielding potential.
Type:
text; Thesis-Reproduction (electronic)
Keywords:
Agriculture, General.; Agriculture, Plant Culture.; Biology, Plant Physiology.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Graduate College; Plant sciences
Degree Grantor:
University of Arizona
Advisor:
Oebker, Norman F.

Full metadata record

DC FieldValue Language
dc.language.isoen_USen_US
dc.titleVegetative, reproductive and yield responses of tomato (Lycopersicon esculentum L.) seedlings to low temperature and exogenous sucrose treatmentsen_US
dc.creatorIbrahim, Abdelaziz Ali Mohamed, 1948-en_US
dc.contributor.authorIbrahim, Abdelaziz Ali Mohamed, 1948-en_US
dc.date.issued1994en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractThe effects of subjection of 15-day-old plants of tomato (Lycopersicon esculentum L. 'Contessa') to low night temperature (LNT) of 4°C for up to 21 nights and pre-chilling application of 10% sucrose solution on vegetative, reproductive and yield responses were examined under greenhouse conditions. Chilled seedlings exhibited severe inhibition of growth, with the degree of inhibition increasing with length of chilling. While sucrose treatment (ST) reduced such inhibition and promoted subsequent recovery, it transiently inhibited growth of the unchilled controls. In the long-term, inhibition of growth was observed only for the 0%-sucrose-treated plants cooled for 21 nights. Although LNT lowered the position of the first inflorescence in a direct relation to duration of exposure, this effect was reduced by ST. LNT had no lasting effects on the reproductive and productivity responses of the first two inflorescence (FTI), earliness of flowering, or potential yield and quality. ST promoted flowering of only the 21-day-cooled plants as well as numbers of flowers, fruit set and large fruit responses of FTI. The results indicate that, although early chilling stunts seedling growth, plants may recover at a later favorable temperature without loss to their reproductive capacity or yielding potential.en_US
dc.typetexten_US
dc.typeThesis-Reproduction (electronic)en_US
dc.subjectAgriculture, General.en_US
dc.subjectAgriculture, Plant Culture.en_US
dc.subjectBiology, Plant Physiology.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.disciplinePlant sciencesen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorOebker, Norman F.en_US
dc.identifier.proquest1360253en_US
dc.identifier.bibrecord.b32578994en_US
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