A handbbok on Weed Control in Rice.pdf
A handbbok on Weed Control in Rice.pdf
A handbbok on Weed Control in Rice.pdf
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Upland rice weeds / POACEAE (grass family)<br />
<strong>Weed</strong> name: Ech<strong>in</strong>ochloa col<strong>on</strong>a (L.)<br />
L<strong>in</strong>k<br />
Syn<strong>on</strong>yms: N<strong>on</strong>e<br />
Local names:<br />
Country Comm<strong>on</strong> name<br />
Argent<strong>in</strong>a grama p<strong>in</strong>tada (Spanish)<br />
Australia awnless barn yardgrass<br />
Egypt<br />
France<br />
abu-rokba (Arabic)<br />
ble de dekkan<br />
India kauada, sawank<br />
(Malayalarn)<br />
Ind<strong>on</strong>esia roernpoet bebek<br />
Iraq dahnan<br />
Malaysia padi bur<strong>on</strong>g, rumput<br />
kusa-kusa<br />
Philipp<strong>in</strong>es<br />
Sri Lanka<br />
Sudan<br />
pulang puit (Tagalog)<br />
gira-taro (S<strong>in</strong>halese)<br />
difera<br />
Thailand<br />
USA<br />
Zambia<br />
ya-pl<strong>on</strong>g<br />
junglerice<br />
zibaila (Chit<strong>on</strong>ga)<br />
Life cycle: An annual grass that can<br />
grow as tall as 90 cm. Propagates by<br />
oval, tan to brownish seeds. In the<br />
tropics, seed has little or no dormancy<br />
and germ<strong>in</strong>ates throughout the year<br />
when moisture is available.<br />
Habitat: Normally grows under<br />
dryland c<strong>on</strong>diti<strong>on</strong>s: does not thrive <strong>in</strong><br />
c<strong>on</strong>t<strong>in</strong>uously flooded soils.<br />
<strong>Weed</strong>y nature: A prolific seed<br />
producer; has a short life cycle and can<br />
complete several life cycles <strong>in</strong> a year.<br />
Easily adapts to the envir<strong>on</strong>ment-for<br />
example, grows erect when <strong>in</strong> competiti<strong>on</strong><br />
with rice and prostrate when not <strong>in</strong><br />
competiti<strong>on</strong>. Young plants resemble<br />
rice, which makes hand weed<strong>in</strong>g<br />
difficult at early weed stages.<br />
Agricultural c<strong>on</strong>cern: Competitive<br />
<strong>in</strong> rice; can reduce yields 85%.<br />
Mature plant<br />
Seedl<strong>in</strong>g<br />
Seed, magnified<br />
<strong>Weed</strong>s worldwide 33
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