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2010 | 50 | 3 |

Tytuł artykułu

Allelopathic behaviour of Cyperus rotundus L. on both Chorchorus olitorius (broad leaved weed) and Echinochloa crus-galli (grassy weed) associated with soybean

Warianty tytułu

PL
Allelopatyczne zachowanie się Cyperus rotundus L. na Chorchorus olitorius i Echinochloa crus-galli związanymi z soją

Języki publikacji

EN

Abstrakty

EN
Purple nutsedge (Cyperusr otundus) foliage and tubers were tested for allelopathic potential against the following weeds; jute Chorchorus olitorius (broad leaved weed), and barnyard grass Echinochloa crus-galli (grassy weed)associated with soybean. In the greenhouse, during 2008 and 2009, foliage and tubers of C. rotundus were mixed with soil surface at 20, 40, 60 and 80g/kg. C. rotundus negatively affected those of jute and barnyard grass particularly at 80 g. Jute was more susceptible to allelopathy by C.rotundus than barnyard grass. Inhibition in weed dry matter was higher with tuber than foliage residues. Tuber residues reduced the dry weight of jute and barnyard grass by 85.96% of the control and by 58.28% with 80 g, respectively.On the other hand, soybean growth and yield showed a high significant increasecompared with unweeded pots. A high-performance liquid chromatography analysis showed that C. rotundus foliage contained the following phenolic acids:caffeic, ferulic, coumaric, benzoic, vanelic, chlorogenic and cinnamic. Tubers contained hydroxybenzoic, caffeic, ferulic, vanelic and chlorogenic.
PL
Badano allelopatyczny potencjał liści i bulw Cyperus rotundus przeciwko następującym chwastom: Chorchorus olitorius (juta) i Echinochloa crus-galli (chwastnica jednostronna) związanych z soją. W latach 2008 i 2009 w szklarni ulistnienie i bulwy C. rotundus mieszano z powierzchniową warstwą ziemi w proporcji – 20, 40, 60 i 80 g/kg. C. rotundus negatywnie wpływał na jutę i E. crus-galli, szczególnie stosowany w ilości 80 g/kg. Juta była wrażliwsza na allelopatię C. rotundus niż E. crus-galli. Inhibicja suchej masy chwastu była niższa w przypadku bulw niż resztek ulistnienia. Resztki bulw, w ilości 80 g/kg, redukowały suchą masę juty i chwastnicy jednostronnej odpowiednio o 85,96 i 58,28%. Z drugiej strony wzrost soi oraz plon wykazywały wysoce istotny wzrost w porównaniu z poletkami nieodchwaszczonymi. Analiza wykonana metodą wysoce wydajnej chromatografii płynnej wykazała, że ulistnienie C. rotundus zawierało kwasy fenolowe i kwas kofeinowy.

Słowa kluczowe

Wydawca

-

Rocznik

Tom

50

Numer

3

Opis fizyczny

p.274-279,fig.,ref.

Twórcy

  • Botany Department, NationalResearch Centre, El-Behhos St., 12622 Giza, Egypt

Bibliografia

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