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| HASSAN,G.; RASHID,H.U.; AMIN,A.; KHAN,I.A.; SHEHZAD,N.. |
| ABSTRACT: Parthenium hysterophorus being a declared invasive weed worldwide is threatening the biodiversity of Pakistan. To study its allelopathic potential, laboratory and pots based studies were undertaken during July-August and October-November, 2010 in Weed Research Laboratory, Department of Weed Science, The University of Agriculture Peshawar, Khyber Pakhtunkhwa Pakistan. The experiments were conducted to investigate the allelopathic effect of parthenium on crops Triticum aestivum, Cicer arietinum and Brassica campestris, and weeds including Avena fatua, Asphodelus tenuifolius and Lolium rigidum The fresh leaves of P.hysterophorus were dried in shade and grinded. The desired quantity of powder was soaked for 16 hr. in the desired quantity of water... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Parthenium; Allelopathy; Wheat. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582018000100331 |
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| Rehman,Abdul; Qamar,Rafi; E. Safdar,Muhammad; ,Atique-ur-Rehman; M.R. Javeed,Hafiz; Maqbool,Rizwan; Farooq,Naila; Shahzad,Muhammad; Ali,Mazhar; H. Tarar,Zahid. |
| Abstract Background: Parthenium hysterophorus L., commonly known as parthenium weed, poses severe economic and environmental hazards to the agro-ecosystems of Pakistan. Objective: To estimate the yield loss and critical competition period of this weed in the spring sown maize crop. Method: Field studies were conducted at an agronomic research area in the College of Agriculture at the University of Sargodha in Punjab-Pakistan during two consecutive year spring seasons (2014 and 2015). Treatments were comprised of viz., control plots (weed free), and parthenium competition durations of 2, 3, 4, 5 and 6 weeks after crop emergence (WAE), as well as weedy check for the full growing season of the crop. Results: Study results showed that the prolongation... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Competition duration; Parthenium; Spring maize; Yield loss; Logistic model. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582020000100327 |
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| KHALIQ,A.; ASLAM,F; MATLOOB,A; JAVAID,A; TANVEER,A; HUSSAIN,S.; IHSAN,M.Z. |
| Phytotoxic effects of invasive weed Parthenium hysterophorus were studied by using whole plant, leaf and root aqueous extracts at 0, 2.5, 5.0, 7.5 and 10% (w/v) concentrations against germination and early seedling growth of wheat and canola. Studies were carried out both in Petri plates with filter paper as substratum placed in controlled conditions and soil-filled plastic pots placed in open environments. Pronounced variation was noted for phytotoxic activity of different plant parts of parthenium, aqueous extract concentrations, test species, and bioassay techniques. Aqueous parthenium extracts either inhibited or delayed the germination and suppressed seedling growth of test species over control. For both test species, all the germination attributes... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Allelopathic inhibition; Aqueous extracts; Bioassay techniques; Germination dynamics; Parthenium; Phenolics; Seedling growth. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582016000100011 |
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