Evolution of imidazolinone-resistant weedy rice in Malaysia: the current status

Ruzmi, Rabiatuladawiyah; Ahmad-Hamdani, Muhammad Saiful; Abidin, Mohamad Zuhair Zainal; Roma‐Burgos, Nilda

doi:10.1017/wsc.2021.33

Cited by 10 publications

(5 citation statements)

References 83 publications

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“…The cycle consists of three growth stages: (1) vegetative (1-41 days after planting), (2) reproductive (42-77 days), and (3) maturative (83-99 days). To boost rice production, Malaysia's government introduced a rice granary, arable land, with a centralised canal irrigation system that the federal government administrates (Ruzmi et al, 2021). To date, 12 rice granaries have been developed that cover a total area of 425,613 hectares.…”

Section: Rice Cultivation In Malaysia and The Weed Predicamentmentioning

confidence: 99%

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Weed Management Using UAV and Remote Sensing in Malaysia Paddy Field: A Review

Ramli,

Juraimi,

Motmainna

et al. 2024

JST

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Controlling weed infestation is pivotal to achieving the maximum yield in paddy fields. At a time of exponential human population growth and depleting arable land mass, finding the solution to this problem is crucial. For a long time, herbicides have been the most favoured approach for weed control due to their efficacy and ease of application. However, adverse effects on the environment due to the excessive use of herbicides have prompted more cautious and effective herbicide usage. Many weed species tend to dominate the field, and the weed thrived in patches, rendering conventional broad herbicide spraying futile. Site-specific weed management (SSWM) consists of two strategies: weed mapping and selective herbicide application. Since its introduction into the agriculture sector, unmanned aerial vehicles (UAV) have become the platform of choice for carrying both the remote sensing system for weed mapping and the selective application of herbicide. Red-Green-Blue (RGB), multispectral and hyperspectral sensors on UAVs enable highly accurate weed mapping. In Malaysia, adopting this technology is highly possible, given the nature of government-administrated rice cultivation. This review provides insight into the weed management practice using remote sensing techniques on UAV platforms with potential applications in Malaysia's paddy field. It also discusses the recent works on weed mapping with imaging remote sensing on a UAV platform.

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Section: Rice Cultivation In Malaysia and The Weed Predicamentmentioning

confidence: 99%

“…It has also been reported that DSR experienced a 7-10 days early maturity (Nagargade et al, 2018). DSR has been adopted in Malaysia since the late 1980s (Ruzmi et al, 2021). In Asia, DSR is practised in 21% or 29 million hectares of the total cultivated area (Alam et al, 2020).…”

Section: Rice Cultivation In Malaysia and The Weed Predicamentmentioning

confidence: 99%

Weed Management Using UAV and Remote Sensing in Malaysia Paddy Field: A Review

Ramli,

Juraimi,

Motmainna

et al. 2024

JST

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“…Third, and more important, is the evolution of IMI-resistant weedy rice populations. After 3 years of Clearfield rice cultivation, weedy rice hybrids with several trait modifications appeared in rice fields, in the USA (Louisiana and Arkansas), Brazil [38], Colombia, Costa Rica, Italy ([37]: table 3), and in Malaysia [39][40][41]. In Arkansas for instance, 10-60% of these hybrids were found to be herbicide-resistant [42].…”

Section: Herbicide (Imi)-resistant Rice Varieties: Low Efficiency and Sustainabilitymentioning

confidence: 99%

“…On the one hand, monoculture requires less farm implements, knowledge, and practical experience and so is simpler than crop rotation. Moreover, some countries, e.g., Malaysia, are not selfsufficient in rice production; then, arable lands are reserved by the government and monocropped with rice to ensure food security [41]. On the other hand, the impacts of crop rotation on economic returns are not clearly established.…”

Section: Complexity and Uncertain Profitabilitymentioning

confidence: 99%

Sustainability, Efficiency, and Circularity of Weedy Rice Management Strategies

Svizzero

2021

Circ.Econ.Sust.

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Weeds have always been a serious problem for farmers and especially nowadays given the current challenges related to food security and agriculture sustainability. During the last three decades, the increasing scarcity of labor, energy, and water has led to a switch of the rice establishment method from traditional hand transplanting to direct seeding. While the latter presents some advantages, it also fosters weeds among which weedy rice is considered the worst because it has a strong competitive ability, and as a congeneric of cultivated rice is very difficult to control. There are currently three main weed management strategies in rice: synthetic herbicides, herbicide-resistant rice varieties, and integrated weed management (IWM). However, all these strategies have low effectiveness and sustainability. Even though IWM is strongly recommended, its adoption remains very low owing to its complexity and the additional cost it induces. The use of crop rotation and cover crops is sustainable and consistent with the circularity principles, but this strategy presents the same drawbacks than those associated with IWM. We stress that other strategies used to control or suppress weedy rice are more efficient, sustainable, and consistent with the bioeconomy principles. They encompass the control of the pathways to weediness by ferality as well as the improvement of rice cultivars' fitness based on allelopathic effects. Other non-chemical weed management strategies, such as the use of bioherbicides, are promising given the current transition towards bioeconomy and circular economy.

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“…The gap was substituted with imports from mostly Association of Southeast Asian Nations (ASEAN) countries. The current production of rice is 2.91 million tons, however, the country still imports about 20-24 percent of its rice demand [2,3] with an average consumption of 82 kg per capita per year [4]. Malaysia's rice venture is too expensive, and the country would need not grow any rice at all if looking from an economic viewpoint such as comparative advantage in relation to the world market.…”

Section: Introductionmentioning

confidence: 99%

Do Erratic Rainfalls Hamper Grain Production? Analysis of Supply Response of Rice to Price and Non-Price Factors

et al. 2021

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Increasing rice production has become one of the ultimate goals for South Asian countries. The yield and area under rice production are also facing threats due to the consequences of climate change such as erratic rainfall and seasonal variation. Thus, the main aim of this work was to find out the supply response of rice in Malaysia in relation to both price and non-price factors. To achieve this target, time series analysis was conducted on data from 1970 to 2014 using cointegration, unit root test, and the vector error correction model. The results showed that the planted area and rainfall have a significant effect on rice production; however, the magnitude of the impact of rainfall is less conspicuous for off-season (season 2) rice as compared to main-season rice (season 1). The speed of adjustment from short-run to long-run for season-1 rice production is almost two-and-a-half years (five production seasons), while for season-2 production, it is only about one-and-a-half year (three production seasons). Consequently, the study findings imply the supply of water to be enhanced through better water infrastructure for both seasons. Moreover, the area under season 2 is continuously declining to the point where the government has to make sure that farmers are able to cultivate the same area for rice production by providing uninterrupted supply of critical inputs, particularly water, seed and fertilizers.

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Evolution of imidazolinone-resistant weedy rice in Malaysia: the current status

Cited by 10 publications

References 83 publications

Weed Management Using UAV and Remote Sensing in Malaysia Paddy Field: A Review

Weed Management Using UAV and Remote Sensing in Malaysia Paddy Field: A Review

Sustainability, Efficiency, and Circularity of Weedy Rice Management Strategies

Do Erratic Rainfalls Hamper Grain Production? Analysis of Supply Response of Rice to Price and Non-Price Factors

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