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Articles by A. Hussain
Total Records ( 3 ) for A. Hussain
  Zafar Iqbal , A. Hussain , A. Latif , M. R. Asi and Jamil A. Chaudhary
  Field experiments were conducted to study the effect of pesticide applications on soil microbial populations in cotton agroecosystem. The pesticides were applied in test (research plot), treated (farmer) and control (without pesticides) fields. Soil samples were collected from sowing time, before and 2 days after each pesticide applications, at harvest and post harvest time during the crop seasons 1997-98. Soil samples were subjected to thawing before determining the microbial populations. Total bacterial counts (colony forming units; CFU) were determined by serially diluted samples into Luria broth media after 24 h while fungal counts were determined by Sabouraud media after 7 days incubation at 30°C. Endosulfan, profenophos + alphamethrin and methamidophos inhibited while monocrotophos and bifenthrin + acetamiprid enhanced the bacterial population. Fungal population was depressed with endosulfan while monocrotophos, methamidophos, endosulfan + dimethoate , fenpropathrin, bifenthrin + acetamiprid or with ethion or with a mixture of carbosulfan and chlorpyrifos and profenophos alone or with ethion or cypermethrin or alphamethrin stimulated. All the other applied pesticides did not cause any appreciable change in total bacterial and fungal populations. Samples collected after pesticide applications at harvest and post harvest time showed that the microbial population recovered to its normal levels at the end of each season.
  M. Hussain , R. Muneer , M. Jahangir , A.H. Awan , M.A. Khokhar , A.B. Zahur , M. Zulfiqar and A. Hussain
  Outbreaks of peste des petits ruminants (PPR) in goats, reported in different parts of the country were investigated. The disease was confirmed at six places using immunocapture ELISA and a pen-side test (chromatographic strip), a recently developed technology for the diagnosis of PPR under field conditions. The results indicated that PPR was wide spread in the country causing high mortality in goats. Although sheep and goats were kept under the same roof, yet there was no evidence of PPR infection in sheep. The pen-side test proved to be a useful technology for the rapid diagnosis of PPR. It helped reduce losses by employing early control measures to contain the infection.
  M. A. Naeem , R. H. Qureshi , M. Aslam , R. Ahmad , N. Ahmad , A. Hussain , M. Saleem and K. Hussain
  In order to determine genetic diversity of NRI against NaCl salinity, a study in hydropnic system was carried out with 60 plants of NRI at 70 ml m-3 NaCl salinity. Plants were grown up to maturity and on the basis of growth and paddy yield, the plant population of NR-I was divided into five tolerance classes and corresponding values of K+, Na+, Cl-, K:Na and P:Zn ratio were averaged and relationships of these parameters with the salt-tolerance character was evaluated. The study revealed that salt tolerance of various population groups was correlated with the exclusion of Na+ and Cl-, better maintenance of K+, high K:Na and low P:Zn ratios in the leaves. The chemical composition of leaves depends upon the age of the leaf.
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