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Articles by Arif Jan
Total Records ( 3 ) for Arif Jan
  Seemi Lohani , Arif Jan and H.N. Verma
  Boerhavia diffusa is a medicinally important plant. Root of Boerhavia diffusa contain basal proteins which show high virus inhibitory activity against plant viruses. Root extract of this plant induce strong systemic resistance in susceptible host plant. In the present study we found that the BD-SRIP induces the resistance against the TMV infection. The explant developed from the media containing the BD-SRIP extract show less degree of susceptibility against the viral infection.
  Neelofar Jabeen , A.S. Shawl , G.H. Dar , Arif Jan and Phalesteen Sultan
  A rapid in vitro regeneration protocol for induction of multiple shoots from nodal segments of Inula racemosa Hook.f. was developed. Leaf and nodal segments were inoculated on MS medium containing different concentrations of Benzylaminopurine (BAP) either alone or in combination with Naphthalene Acetic Acid (NAA) or Indole Butyric Acid (IBA) growth hormones. MS medium supplemented with BAP (0.25 mg L–1) induced maximum number of shoots (20.7±0.8). The shoots were rooted on half strength of MS medium either alone or supplemented with (IBA) Indole butyric acid (1.0 mg L–1). Direct rooting from leaves has also been developed from cultured plants. In vitro raised plantlets were acclimatized in green house and successfully transplanted to the field with a survival of 80%.
  Sajad Mohi-ud-din , F.A. Zaki , N.A. Munshi , Arif Jan and R.A. Wani
  Beauveria bassiana isolated locally from the larvae of Bombyx mori was evaluated at different concentrations viz. 1x108, 1x106, 1x104 and 1x102 spore mL-1 against white grub (Holotrichia sp.) for dose optimization of this fungus. It was observed that among these concentration 1x108 spore mL-1 was the most promising one, showing initial mortality very early and cent per cent in a shorter period of time. The mortality in general in each treatment was recorded in the order of 1x108, 1x106, 1x104 and 1x102 spore mL-1. This spore concentration viz. 1x108 of B. bassiana was tested against different stages of white grub (Holotrichia sp. ) to determine the comparative susceptibility of different stages to this fungus. It was observed that initial (56.66%) mortality occurred on 4th day and cent percent on the 10th day, respectively in case of 1st instar. The initial mortality (46.66 and 43.33%) in 2nd and 3rd instars was recorded on 4th and 6th day and 100% mortality on 12th and 16th day, respectively. These results showed that 1st stage grubs were more susceptible followed by 2nd and 3rd instar grubs.
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