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- W2314458457 abstract "The aims of this experiment was to study the effect of pine leaf as allelophaty on growth of pigweed. The experiment was conducted at screen house Department of Biology Faculty of Mathematics and Science, Brawijaya University. The research arranged by Randomized Simple Blok Design, with three replication, consisted of eleven levels, i.e : A0: Control, A1: Extract of leaf Pinus merkusii 400 ppm, A2: Extract of leaf Pinus merkusii 800 ppm, A3: Extract of leaf Pinus merkusii 1.200 ppm, A4 : Extract of leaf Pinus merkusii 1.600 ppm, A5: Extract of leaf Pinus merkusii 2.000 ppm, A6: Extract of leaf Pinus longaeva 400 ppm, A7: Extract of leaf Pinus longaeva 800 ppm, A8: Extract of leaf Pinus longaeva 1.200 ppm, A9: Extract of leaf Pinus longaeva 1.600 ppm, A10: Extract of leaf Pinus longaeva 2.000 ppm. The results showed significant reduction by extract of leaf Pinus merkusii and Pinus longaeva 2000 ppm in plant height, leaf number, leaf area and dry weight of pigweed on observation 63 DAP. Extract of leaf Pinus merkusii and Pinus longaeva 2000 ppm affected plant height of pigweed 48% and 49% and affected leaf area 49% and 67% compared to control. Extract of leaf Pinus merkusii and Pinus longaeva 2000 ppm reduced dry weight of pigweed 38 % and 37% compared to control. I. INTRODUCTION Pigweed is the potential competitor for crops. Pigweed is highly difficult to be controlled due to it is considered efficient in using sources to survive and grow rapidly as well. Such pigweed is competitive because it could adapt to any condition. It could grow under diverse condition of soil in all levels of nutrients, types of soil, altitudes, and in all levels of soil pH, as well as temperature of the environment. Allelophaty is an alternative to control pigweed as bioherbicide. Allelophaty of higher crops can be used to reduce the pigweed growth or pests. Method in using allelophaty as pigweed controller is relatively and efficiently safe way because it is a natural product that can be decomposed easily. Moreover, this allelophaty can be kept longer under varied condition and easily applicable." @default.
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- W2314458457 date "2013-01-01" @default.
- W2314458457 modified "2023-10-16" @default.
- W2314458457 title "Potential Allelopathy of Pine Leaf (Pinus Spp.) As Bioherbicide On Pigweed (Portulaca Oleracea)" @default.
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- W2314458457 doi "https://doi.org/10.9790/2402-0714853" @default.
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