A handbbok on Weed Control in Rice.pdf
A handbbok on Weed Control in Rice.pdf
A handbbok on Weed Control in Rice.pdf
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Upland rice weeds / CYPERACEAE (sedge family)<br />
<strong>Weed</strong> name: Cyperus rotundus L.<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 cebollita<br />
Bangladesh motha (Bengali)<br />
Brazil tiririca-comum<br />
(Portuguese)<br />
Cambodia smav kravanh chrouk<br />
(Khmer)<br />
France souchet r<strong>on</strong>d<br />
Ghana hyia-me-n<strong>on</strong>um (Fanti)<br />
India nagar, motha (Orya)<br />
korai (Tamil)<br />
dila (Telegu)<br />
Ind<strong>on</strong>esia teki<br />
Malaysia rumput haliyahitan<br />
(Malay)<br />
Mexico coquillo (Spanish)<br />
Pakistan deela (Urdu)<br />
Philipp<strong>in</strong>es mutha (Tagalog)<br />
Senegal ndidan (Wolof)<br />
Sri Lanka kalanthi (S<strong>in</strong>halese)<br />
Thailand haew moo (Thai)<br />
USA purple nutsedge<br />
Life cycle: A perennial sedge that<br />
can grow as tall as 75 cm. Propagates<br />
ma<strong>in</strong>ly by tubers and produces few<br />
seeds.<br />
Habitat: Grows well <strong>in</strong> moist soils.<br />
<strong>Weed</strong>y nature: Persistent and<br />
difficult to c<strong>on</strong>trol. Enormous amounts<br />
of tubers may be produced. Tubers,<br />
which have dormancy, can survive l<strong>on</strong>g<br />
periods of envir<strong>on</strong>mental stress.<br />
Difficult to c<strong>on</strong>trol by cultivati<strong>on</strong><br />
because cultivati<strong>on</strong> breaks the<br />
dormancy <strong>in</strong> the <strong>in</strong>terc<strong>on</strong>nected tuber<br />
lead<strong>in</strong>g to more vigorous sprout<strong>in</strong>g.<br />
Agricultural c<strong>on</strong>cern: Limits rice<br />
producti<strong>on</strong> by compet<strong>in</strong>g for water and<br />
nutrients. Can reduce rice yields 50%.<br />
Inflorescence<br />
Seedl<strong>in</strong>g<br />
Mature plant<br />
Rhizomes and tubers<br />
<strong>Weed</strong>s worldwide 29
Change language