Morpho-physiological and anatomical assessment of different rice varieties subjected to drought stress at early vegetative stage

Karim, Mohd Fauzihan and Mohd Rosely, Nur Farah Suhada and Mohd Kamil, Nur Aini and Che Amri, Che Nurul Aini (2021) Morpho-physiological and anatomical assessment of different rice varieties subjected to drought stress at early vegetative stage. Malaysian Applied Biology, 50 (1). pp. 55-64. ISSN 0126-8643 E-ISSN 2462-151X

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Abstract

Drought is a climate problem which has become a major constraint on crop production and causing social and economic devastation to local farmers worldwide. This climate issue has been the most destructive factors for rice cultivation and therefore requires scientist to be more responsive to this problem. In this study, we investigated the effect of drought stress at an early vegetative stage on plant growth, physiology and root anatomy of a few selected known tolerance rice varieties. Rice seeds were first germinated on moisturized filter papers before transplanted into polybags filled with topsoils. Drought treatment was imposed 4 weeks after transplanting until the first sign of rolled leaves were seen. In this study, drought had no major impact on plant height but reduced dry matter accumulation was seen in all varieties. Drought exposure had also triggered changes in the overall content of chlorophyll but not in the composition of chlorophyll a and b. Meanwhile, plants subject to drought in some parameters had better root morphology and structure compared to normal irrigation, especially in Kuku Belang, Apami and Huma Wangi Lenggong. However, depending on the variety, the responses varied in different order of magnitude.

Item Type:	Article (Journal)
Uncontrolled Keywords:	Acclimation, anatomy, drought stress, growth, rice
Subjects:	S Agriculture > S Agriculture (General)
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Science > Department of Plant Science Kulliyyah of Science
Depositing User:	Dr Che Nurul Aini Che Amri
Date Deposited:	08 Nov 2022 15:26
Last Modified:	08 Nov 2022 15:29
URI:	http://irep.iium.edu.my/id/eprint/101089

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