Weed survey in different cultural practice in Seberang Perai and Muda Rice Fields in Northern Malaysia

A. Aqilah, M. Asyraf, M. Azmi


A correlation between weedy species composition and 4 different planting practices in Peninsular Malaysia was being investigated from September 2011 – January 2012. Through this study, the noxious and competitive weed of rice were identified and counted, which should be helpful in developing a more sustainable weed control and management. This study was conducted at 24 different rice field covering four types of planting practices in Seberang Perai and MUDA area, namely wet seeding, water seeding, manual transplanting and mechanical transplanting method, using 0.5 x 0.5 m size quadrat with 20 samples for each field during rice at tillering to heading stage. A total of 27 weed species belonging to 14 families composing of 10 broadleaved, 8 grasses, 7 sedges and 2 submerged weed group were recorded. The dominance weeds species in four planting practices at both areas is Oryza sativa complex (weedy rice). Different dominance weed group observed in both areas due to different planting practices, such as in water seeding practice, broadleaved such Limnochoria flava and Monocharia vaginalis showed the highest I.V. for both areas, for wet seeding practice Echinochloa crus-galli and Leptochloa chinensis under grasses group have the highest I.V. and for manual and mechanical transplanting practice both have the same weed group which is Leptochloa chinensis

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