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Articles by Nazir Javed
Total Records ( 3 ) for Nazir Javed
  Amer-Zareen , M. Javed Zaki and Nazir Javed
  Aqueous ginger extract was tested against root knot nematode Meloidogyne javanica. In vitro studies, higher concentrations of extract (100% concentration) suppressed root knot egg hatching and caused juveniles mortality. Pasteuria endospore attachment was greater in 25% concentration extracts compared to those at 100 and 50% concentrations. Plant growth improved and disease severity was reduced when combined applications of the plant extract and P. penetrans were applied. In treatments receiving 25% extract and P. penetrans, 72% females were parasitized by the bacterial antagonist and 9 spores of bacteria per juvenile were found attached with nematode cuticle.
  Nazir Javed , H.U. Khan and Riaz Ahmad
  Selection of the most suitable host for the mass production of P. penetrans revealed that brinjal was the most suitable host followed by mungbean, mash and cowpea. It was due to more invasions sites present in the brinjal roots, which provided more penetration of nematodes in the roots. The relationship of quantity of roots and amount of spores revealed that within the host more amount of roots produced more endospores but amongst the hosts it did not happen.
  Amer Zareen , Nazir Javed and M. Javed Zaki
  In a mirco-plot field experiment four isolates of Pasteuria (one from UK and three local isolates viz., PK 1, PK2 and PK3) and a mixed inoculum of all four isolates (blend) were tested against Meloidogyne javanica on tomato to understand the pathogenic variability of different bacterial isolates. Yield of tomato and plant growth as plant height, fresh shoot and root length was improved significantly by blend inoculum of bacterial antagonists compared to control. Nematode development in roots and soil was suppressed by blend applications followed by individual Pasteuria applications i.e. UK > PK 1> PK2 and >PK3 isolates compared to untreated control plots.
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