Competitive Ability of some Selected Rice Varieties against Weed under Aerobic Condition

Norhidayati Bt. Sunyob and Abdul Shukor Juraimi and M.A. Hakim and Azmi Man and A. Selamat and Md. Amirul Alam (2015) Competitive Ability of some Selected Rice Varieties against Weed under Aerobic Condition. International Journal of Agriculture and Biology, 17. pp. 61-70. ISSN 1560-8530

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Abstract

Sustainable weed management strategy in aerobic rice cultivation system would be beneficial from both economic and environmental perspectives. Glass house and field experiments were conducted to evaluate competitive ability of five rice varieties, namely AERON 1, AERON 4, M9, MR211 and MR220-MCL2 against weeds under aerobic rice cultivation systems to select suitable varieties for cultivation in tropical Asia. Results revealed that AERON 1 had the lowest weed dry weight and weed density and the highest weed dry weight was recorded in MR211, both in glass house and field trials. Grasses were the most dominant weeds which occupied more than 60% of sum dominance ratio in which Leptochloa chinensis and Echinochloa colona were the most dominant weeds in glass house and field conditions, respectively. AERON 1 with characteristics of taller plant stature and short growth duration competed better with weed as compared to other varieties with shorter plant and longer growth duration. Weed competition had negative impact on rice plants. Lower weed dry weights and relative less yield loss was found in AERON 1 indicated its better weed suppressive and competitive ability against weeds. These results concluded that AERON 1 is the most competitive variety against weeds under aerobic rice cultivation systems.

Item Type:	Article
Keyword:	Aerobic rice , Weed competition , Relative yield loss
Subjects:	Q Science > QK Botany > QK1-989 Botany S Agriculture > S Agriculture (General) > S1-(972) Agriculture (General)
Department:	FACULTY > Faculty of Sustainable Agriculture
Depositing User:	SITI AZIZAH BINTI IDRIS -
Date Deposited:	22 Nov 2022 11:12
Last Modified:	22 Nov 2022 11:12
URI:	https://eprints.ums.edu.my/id/eprint/34907

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