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Articles by S. Hayat
Total Records ( 2 ) for S. Hayat
  S. Hayat , Q. Fariduddin , Barket Ali and A. Ahmad
  Chloroindole auxins are useful tools in understanding the signal transduction pathways of the auxins. However, their presence is not acclaimed in majority of the plants. This gives an impression that these auxins could be having certain roles in plants enriched with them. Therefore, the seeds of Solanum melongena (L.) cv. Pusa were soaked in 0, 10-8 or 10-6 M aqueous solutions of IAA, 4,Cl-IAA, 5,Cl-IAA, 6,Cl-IAA, 7,Cl-IAA, 4,6,Cl2-IAA and 4,7,Cl2-IAA for 8 h and cultivated in clay pots. All the auxins improved the growth and NR activity compared with water soaked control. 4,Cl-IAA was most prominent in its effect, generating 29, 54, 30, 34 and 47% higher values for shoot and root length, fresh and dry mass and NR activity, respectively, in 15 day old plants. The order of response to various auxins was 4,Cl-IAA>7,Cl-IAA>6,Cl-IAA = 5,Cl-IAA = 4,6Cl2-IAA = 4,7Cl-IAA>Control.
  L.A. Lodhi , Z.I. Qureshi , M.A. Khan and S. Hayat
  Serum levels of glucose, total proteins, calcium and phosphorus were determined by light absorption spectrophotometry in cycling, non-cycling, repeat breeder and endometritic buffaloes (n = 16 in each group). The cycling buffaloes had significantly higher levels of glucose than the other three groups (P<0.05). The total protein concentration was significantly higher in cycling as compared to endometritic and non-cycling buffaloes (P<0.05). The significantly higher calcium concentration was determined in cycling buffaloes as compared to rest of three groups. The level of inorganic phosphorus was significantly higher in repeat breeder and cycling group of buffaloes (P<0.05). It was inferred from the present study that lower concentrations of blood glucose, total protein and calcium and higher concentrations of inorganic phosphorus might account for non-cycling, repeat breeding and endometritis in buffaloes.
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