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| Titel: |
Effect of Population Density of <I>Echinochloa crusgalli</I> and <I>Echinochloa colonum</I> on Rice |
| Auteur: |
Md. Fazlul Islam S.M. Rezaul Karim S.M.A. Haque Md. Sirajul Islam Md. Sirajul Islam |
| Verschenen in: |
Journal of agronomy |
| Paginering: | Jaargang 2 (2003) nr. 3 pagina's 120-125 |
| Jaar: |
2003 |
| Inhoud: |
A pot experiment was conducted to study the effect of <I>Echinochloa crusgalli</I> and <I>Echinochloa colonum</I> on the growth and yield of rice (cv. IR50) during April to July 2002. The results showed that the effect of two weeds pot G <SUP>1</SUP> produced 70.6% yield loss of rice grain and about 97% grain yield was reduced when 8 weeds competed against a single rice plant. The reduction of rice grain at this density was the results of 42.9% reduction of plant height, 92% reduction of LAI, 72.7% reduction of tillers plant G <SUP>1</SUP>, 88.5% reduction of panicles/plant and 63.8% reduction of grains panicle G <SUP>1</SUP>. Further increase of weed density produced the self-thinning effect of weeds and rice yield increased in comparison to 8 weeds pot G<SUP>1</SUP>. It was concluded that <I> Echinochloa crusgalli</I> and <I>E. colonum</I> produced similar effects on grain yield and other plant characteristics of rice. |
| Uitgever: |
Asian Network for Scientific Information, Pakistan |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 6 van 16 gevonden artikelen
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