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Effects of drought stress on the growth, yield and physiological traits of Thai Super Sweet Corn

Growth and yield performances of Thai Super Sweet (TSS) corn cultivar treated with various drought stress levels (25%, 50% and 100% Field Capacity, FC) at various growth stages (vegetative, pre-flowering and flowering) were investigated in an insect-proof net-house of Faculty of Sustainable Agricult...

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Main Authors: Evelyn Koay Shin Rou, Alissa Nabilla Zamri, Lum Mok Sam
Format: Article
Language:English
Published: Malaysian Society of Plant Physiology 2020
Subjects:
QK710-899 Plant physiology
S1-(972) Agriculture (General)
Online Access:https://eprints.ums.edu.my/id/eprint/42384/1/FULL%20TEXT.pdf
https://eprints.ums.edu.my/id/eprint/42384/
https://doi.org/10.56999/jtpp.2020.12.1.3
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spelling my.ums.eprints.423842024-12-26T03:07:33Z https://eprints.ums.edu.my/id/eprint/42384/ Effects of drought stress on the growth, yield and physiological traits of Thai Super Sweet Corn Evelyn Koay Shin Rou Alissa Nabilla Zamri Lum Mok Sam QK710-899 Plant physiology S1-(972) Agriculture (General) Growth and yield performances of Thai Super Sweet (TSS) corn cultivar treated with various drought stress levels (25%, 50% and 100% Field Capacity, FC) at various growth stages (vegetative, pre-flowering and flowering) were investigated in an insect-proof net-house of Faculty of Sustainable Agriculture, Universiti Malaysia Sabah, Sandakan Campus. Drought treatments were applied at vegetative (14 to 34 days after sowing (DAS)), pre-flowering (35 to 55 DAS) and flowering (48 to 68 DAS) stages. Parameters measured and statistically analysed were growth, chlorophyll content, proline content and yield. The experiment was conducted as 3 x 3 factorial arrangements of treatments with a completely randomised design with four replications for each treatment. Length of first cob and fresh weight of the first cob showed interaction effects among the drought and growth stage treatments while chlorophyll content, number of cobs, cob girth, number of grains, 100 grains weight and proline content showed significant effects among drought levels treatments and cob girth showed significant effect among growth stages. Shorter flowering time (tasseling at 42 DAS) was found on drought treatment of 25% FC at the pre-flowering stage. It can be concluded that vegetative and flowering stages were sensitive to drought compared to the pre-flowering stage, where the yield components of vegetative and flowering stages were lower compared to the preflowering stage. During the pre-flowering drought period, TSS expressed tolerance response through the higher levels of chlorophyll and proline contents and hence was able to perform the best overall yield components Malaysian Society of Plant Physiology 2020 Article NonPeerReviewed text en https://eprints.ums.edu.my/id/eprint/42384/1/FULL%20TEXT.pdf Evelyn Koay Shin Rou and Alissa Nabilla Zamri and Lum Mok Sam (2020) Effects of drought stress on the growth, yield and physiological traits of Thai Super Sweet Corn. Journal of Tropical Plant Physiology, 12 (1). pp. 1-11. ISSN 1985-0484 https://doi.org/10.56999/jtpp.2020.12.1.3
institution Universiti Malaysia Sabah
building UMS Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sabah
content_source UMS Institutional Repository
url_provider http://eprints.ums.edu.my/
language English
topic QK710-899 Plant physiology
S1-(972) Agriculture (General)
spellingShingle QK710-899 Plant physiology
S1-(972) Agriculture (General)
Evelyn Koay Shin Rou
Alissa Nabilla Zamri
Lum Mok Sam
Effects of drought stress on the growth, yield and physiological traits of Thai Super Sweet Corn
description Growth and yield performances of Thai Super Sweet (TSS) corn cultivar treated with various drought stress levels (25%, 50% and 100% Field Capacity, FC) at various growth stages (vegetative, pre-flowering and flowering) were investigated in an insect-proof net-house of Faculty of Sustainable Agriculture, Universiti Malaysia Sabah, Sandakan Campus. Drought treatments were applied at vegetative (14 to 34 days after sowing (DAS)), pre-flowering (35 to 55 DAS) and flowering (48 to 68 DAS) stages. Parameters measured and statistically analysed were growth, chlorophyll content, proline content and yield. The experiment was conducted as 3 x 3 factorial arrangements of treatments with a completely randomised design with four replications for each treatment. Length of first cob and fresh weight of the first cob showed interaction effects among the drought and growth stage treatments while chlorophyll content, number of cobs, cob girth, number of grains, 100 grains weight and proline content showed significant effects among drought levels treatments and cob girth showed significant effect among growth stages. Shorter flowering time (tasseling at 42 DAS) was found on drought treatment of 25% FC at the pre-flowering stage. It can be concluded that vegetative and flowering stages were sensitive to drought compared to the pre-flowering stage, where the yield components of vegetative and flowering stages were lower compared to the preflowering stage. During the pre-flowering drought period, TSS expressed tolerance response through the higher levels of chlorophyll and proline contents and hence was able to perform the best overall yield components
format Article
author Evelyn Koay Shin Rou
Alissa Nabilla Zamri
Lum Mok Sam
author_facet Evelyn Koay Shin Rou
Alissa Nabilla Zamri
Lum Mok Sam
author_sort Evelyn Koay Shin Rou
title Effects of drought stress on the growth, yield and physiological traits of Thai Super Sweet Corn
title_short Effects of drought stress on the growth, yield and physiological traits of Thai Super Sweet Corn
title_full Effects of drought stress on the growth, yield and physiological traits of Thai Super Sweet Corn
title_fullStr Effects of drought stress on the growth, yield and physiological traits of Thai Super Sweet Corn
title_full_unstemmed Effects of drought stress on the growth, yield and physiological traits of Thai Super Sweet Corn
title_sort effects of drought stress on the growth, yield and physiological traits of thai super sweet corn
publisher Malaysian Society of Plant Physiology
publishDate 2020
url https://eprints.ums.edu.my/id/eprint/42384/1/FULL%20TEXT.pdf
https://eprints.ums.edu.my/id/eprint/42384/
https://doi.org/10.56999/jtpp.2020.12.1.3
_version_ 1819911292648947712
score 13.244413

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