Response of primed rice (oryza sativa l.) seeds towards reproductive stage drought stress

Salleh, Mohd Syahmi and Nordin, Mohd Shukor and Puteh, Adam B. and Shahari, Rozilawati and Zainuddin, Zarina and Ab Ghaffar, Mohamad Bahagia and Abd. Aziz Shamsudin, Noraziyah (2021) Response of primed rice (oryza sativa l.) seeds towards reproductive stage drought stress. Sains Malaysiana, 50 (10). pp. 2913-2921. ISSN 0126-6039 E-ISSN 2735-0118

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Abstract

Seed priming could be promoted as a potential alternative in alleviating drought stress challenges in rice cultivation. The present study was conducted as an attempt to verify potential performance of seed priming in improving seedling growth and harvestable grain yield of rice under reproductive stage drought stress (RS). Seed treatments involved were non-primed seeds as control (T1), hydro-primed (T2) and osmo-primed at -1.0 mPa with polyethylene glycol (PEG6000) (T3). Reproductive stage drought stress (RS) was imposed at soil water potential lower than -60 kPa. The well-watered plants served as control of the experiment. In general, seedling growth of T3 was better than T2 and T1 for all growth parameters in both planting seasons. Yield components were significantly lower in RS as compared to well-watered treatment (WW). The agronomic performance of primed seeds in T2 and T3 were not significantly different with T1 under both RS and WW for both planting seasons. As a conclusion, seed priming treatments used in this study was ineffective in improving agronomic performance of rice under RS. Therefore, other alternatives such as development of drought tolerant rice should be highly emphasized in order to minimize the impact of drought on growth and yield of rice plant.

Item Type:	Article (Journal)
Additional Information:	9838/93607
Uncontrolled Keywords:	Growth; hydro-primed; polyethylene glycol; yield components
Subjects:	S Agriculture > S Agriculture (General) > S494.5.S86 Sustainable agriculture
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Science Kulliyyah of Science > Department of Plant Science
Depositing User:	Dr Mohd Syahmi Salleh
Date Deposited:	09 Nov 2021 17:02
Last Modified:	18 Nov 2021 10:13
URI:	http://irep.iium.edu.my/id/eprint/93607

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