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Articles by Irshad Ahmad Khan
Total Records ( 3 ) for Irshad Ahmad Khan
  Irshad Ahmad Khan , Shahbaz Ahmad and Najma Ayub
  A pot experiment was conducted with sterilized soil to study the effect of P2O5 and mycorrhizal fungus on growth of Avena sativa. Single inoculation with Gigaspora rosea had no significant effect on plant growth over the corresponding controls while with dual inoculation the increase was significantly higher, both in the presence or absence of phosphorus. The maximum shoot dry weight with dual inoculation (Glomus etunicatum + Glomus intraradices) was 38.45 g at 0 kg P2O5 ha-1 and 45.22 g at 25 kg P2O ha-1, while root dry weight was 19.13 g at 0 kg P2O5 ha-1 and 22.50 g at 25 kg P2O5 ha-1.
  Irshad Ahmad Khan , Shahbaz Ahmad and Najma Ayub
  Inoculation effect of single and dual vesicular arbuscular mycorrhizal (VAM) with Gigaspora rosea, Glomus intraradices + Gigaspora and Glomus etunicatum + Glomus intraradices on the growth and nutrients uptake (NPK) on Avena sativa were carried out. Yield in the response of shoot and root dry weight was significantly increased due to dual inoculation than single inoculations. The dry weight of dual inoculation in shoot was 33.68 and 38.45 g and in root was 16.84 and 19.13 g, respectively while the nitrogen, phosphorus and potassium uptake (%) was also more due to dual inoculations.
  Irshad Ahmad Khan , Shahbaz Ahmad and Sarwat Mirza
  The influence of VAM on yield and water use efficiency (WUE) of Avena sativa was studied at two water regimes (100% field capacity and 50% field capacity). The shoot dry weight and root dry weight significantly increased at 100% field capacity as compared to 50% field capacity. There was a proportion of increase in shoot and root weight of the plant at dual mycorrhizal inoculation. The water use efficiency significantly increased by the inoculation with mycorrhizae under both the water regimes. Water use efficiency increased at the dual inoculation but maximum water use efficiency with Glomus etunicatum + Glomus intraradices was 925 g at 100% field capacity and 639 g at 50% field capacity. The maximum shoot and root dry weight also increased to 38.45, 31.25 g for shoot and 19.13, 15.47 g for root at 100 and 50% field capacity, respectively.
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