The productivity of paddy rice in Malaysia has improved as the technology advances. However, several concerns need to be considered to maintain the productivity. The growth of paddy weeds in the fields is one of the concerns that need to be taken care of as it resulted to the decrease of the paddy yield. This paper presents an integrated method for classifying paddy weeds through the shape of t...

Extracting allelochemicals from rice (Oryza sativa) straw and use for weed management is more sustainable than burning reduces herbicide dependence. Water soluble compounds were extracted shoots roots of OM 5930, generating both a crystallized by-product liquid extract. Crystallized product was applied to soil with pre-germinated barnyardgrass (Echinochloa crus-galli L. Beauv), red sprangletop ...

We compared photosynthesis and growth of Zea mays L (corn) and four weed species, Setaria viridis (L) Beauv (green foxtail), Echinochloa crus-galli (L) Beauv (barnyardgrass), Abutilon theophrasti Medic (velvetleaf), and Amaranthus retroflexus L (redroot pigweed), following foliar applications with atrazine, mesotrione, or a combination of atrazine and mesotrione in two greenhouse experiments. P...

Implications of increasing labour costs and the development of herbicide resistance for profitable weed management in Philippine rice farming systems are investigated. The study employs RIMPhil (Resistance and Integrated Management in the Philippines), a bioeconomic simulation model developed to provide a comprehensive assessment of integrated weed management programmes for the control of annua...

Bioassay-directed fractionation of a CH(2)Cl(2)-MeOH (1:1) extract of the aerial parts of Flourensia cernua led to the isolation of three phytotoxic compounds, namely, dehydroflourensic acid (1), flourensadiol (2) and methyl orsellinate (3). Dehydroflourensic acid is a new natural product whose structure was established by spectral means. In addition, the known flavonoid ermanin and seven hithe...

Aplikasi herbisida dengan cara kerja menghambat Acetolactate synthase (ALS) telah dilakukan secara intensif untuk mengendalikan gulma jajagoan [Echinochloa crus-galli (L.) P. Beauv.] pada areal pertanaman padi di Sulawesi Selatan, Indonesia. Hal ini diduga menimbulkan E. yang tahan dan diperkirakan resisten terhadap natrium bispiribak. Penelitian bertujuan mengetahui resistensi tingkat Percobaa...

Greenhouse studies were conducted to evaluate the effects of soil organic matter content and pH on initial residual weed control with flumioxazin by planting selected species in various lab-made field soils. Initial was determined seeds into soils treated (71 g ha−1). Seeds Echinochloa crus-galli (barnyard grass), Setaria faberi (giant foxtail), Amaranthus retroflexus (redroot pigweed), Abutilo...