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2013•JOURNAL OF WEED SCIENCE RESEARCHRequires access

SURVEY OF WEED FLORA IN TRANSPLANTED RICE IN KRISHNA AGROCLIMATIC ZONE OF ANDHRA PRADESH, INDIA

G. G. R. Kiran, A. S. Rao

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Abstract

Weed survey was conducted during Kharif 2009-10 and 2011-12 to study the weed flora in transplanted rice in Krishna zone of Andhra Pradesh, India. The survey revealed that a total of 55 species, of which 11 grasses, 6 sedges, 38 broad leaf weeds belonging to 31 families were infested in transplanted rice. Among the weeds, Echinochloa colona was the most dominating weed with Importance Value Index (IVI) of 27.14 followed by Eclipta alba (21.53), Cyperus rotundus (19.35) and Marsilea quadrifolia (18.63). Among the families, Poaceae was found to be the largest family representing 11 species followed by Cyperaceae with 6 species.

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What this paper is about

Weed survey was conducted during Kharif 2009-10 and 2011-12 to study the weed flora in transplanted rice in Krishna zone of Andhra Pradesh, India. The survey revealed that a total of 55 species, of which 11 grasses, 6 sedges, 38 broad leaf weeds belonging to 31 families were infested in transplanted rice. Among the weeds, Echinochloa colona was the most dominating weed with Importance Value Index (IVI) of 27.14 followed by Eclipta alba (21.53), Cyperus rotundus (19.35) and Marsilea quadrifolia (18.63). Among the families, Poaceae was found to be the largest family representing 11 species followed by Cyperaceae with 6 species.

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Available abstract

Weed survey was conducted during Kharif 2009-10 and 2011-12 to study the weed flora in transplanted rice in Krishna zone of Andhra Pradesh, India. The survey revealed that a total of 55 species, of which 11 grasses, 6 sedges, 38 broad leaf weeds belonging to 31 families were infested in transplanted rice. Among the weeds, Echinochloa colona was the most dominating weed with Importance Value Index (IVI) of 27.14 followed by Eclipta alba (21.53), Cyperus rotundus (19.35) and Marsilea quadrifolia (18.63). Among the families, Poaceae was found to be the largest family representing 11 species followed by Cyperaceae with 6 species.

Key concepts: Cyperus rotundus, Echinochloa, Weed, Cyperaceae, Biology, Flora (microbiology), Kharif crop, Eleusine indica

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SURVEY OF WEED FLORA IN TRANSPLANTED RICE IN KRISHNA AGROCLIMATIC ZONE OF ANDHRA PRADESH, INDIA — Research Paper | ScholarLens