Asian Science Citation Index is committed to provide an authoritative, trusted and significant information by the coverage of the most important and influential journals to meet the needs of the global scientific community.  
ASCI Database
308-Lasani Town,
Sargodha Road,
Faisalabad, Pakistan
Fax: +92-41-8815544
Contact Via Web
Suggest a Journal
 
Articles by S. M. Mehdi
Total Records ( 8 ) for S. M. Mehdi
  S. M. Mehdi , M. Sarfraz , M. Sadiq and G. Hassan
  A green house study was undertaken to see the comparative efficiency of various potassium extraction procedures in three soil series of Pakistan i.e., the Shahdara, the Sultanpur and the Lyallpur. The data showed that number of tillers plant , grain G1 and straw yield of wheat was increased by the application of N and P fertilizers. Potassium concentration in grain and straw was decreased while its uptake increased with the application of N and P. Potassium release from the native reserves increased with the application of N and P. The amount of K extracted by HNO was maximum followed by NH OAC, MgOAC, CaCl and water 3 4 2 in the descending order. Ammonium acetate gave best correlation between K uptake by wheat plants and K extracted by various chemical extractants when no fertilizer was applied while CaCl proved best extractant when N and P fertilizers were applied. 2 Quantity factor gave best correlation with K uptake at all levels of N and P fertilizers application rates when Quantity, Intensity and Quantity/Intensity relations were studied. In case of Electroultrafiltration (EUF) determination. The values of correlation coefficient (r) were significantly high when K was determined for 35 minutes EUF at control while, 10 minutes EUF at all N and P application rates. In over all comparison of various procedures like water soluble, NH OAC, MgOAC, CaCl , HNO , EUF, Q, I 4 2 3 nd Q/I relations for determining the soil K status and its uptake by wheat plant showed that NH OAc gave the best correlation 4 at zero application of N and P fertilizers, water soluble and CaCl were found best when N and P dose was applied while EUF 2 150 100 10 minutes and CaCl were good when N and P were applied. The activity ratio (Q/I) did not prove good parameters to 2 200 150 measure the K availability status of the soils. Though the chemical extractants gave comparatively better correlation with K uptake but EUF method is a rapid and easy. So it should be used for routine work to get accurate and rapid results.
  M. Arshad Ullah , M. Sarfraz , M. Sadiq , S. M. Mehdi and G. Hassan
  A field study was conducted to note the effect of pre-sowing seed treatment with different micronutrient solutions i.e., water, ZnSO4, MnSO4 and FeSO4 on field emergence of Raya cv. , Peela Raya. The concentration of solution used for seed treatments was 0.5M. Seeds were soaked for 12 hours and after that these soaked seeds were dried under the shade for 12 hours before sowing. A basal fertilizer dose of 30 kg N and 30 kg P2O5 ha-1 was applied at the time of sowing. The results revealed that seedling emergence and early growth, fresh and dry weight of roots and shoots were affected significantly by these seed treatments except FeSO4 .
  M. Sadiq , M. Jamil , S. M. Mehdi , M. Sarfraz and G. Hassan
  To investigate a suitable and more tolerant brassica variety/line for salt affected soil, a field experiment was conducted for three consecutive years (1997-1999) at soil salinity research institute, Pindi Bhattian. Performance of seven brassica varieties/lines i.e., peela raya, SPS-23-1, SPS-23-2, ORI-56-6, P-8-2, RL-18 and brown raya were studied in ameliorated and non-ameliorated soils. A field having ECe 13.43 d sm-1, pH 9.69 and SAR 65.97 (m mol l-1) ½ was selected, half of which was ameliorated by applying gypsum @ 100 % G.R. and brassica varieties/lines were sown. All cultural practices were applied to the crop. The results showed that germination percentage, plant height, 1000 grain weight and grain yield were maximum in ameliorated than non-ameliorated soil during all the three years. Among varieties/lines, grain yield was in order of P-8-2, OR1-50-6. It is clear from the results that P-8-2 variety gave the highest grain yield (511.68 kg ha-1) among all other varieties/lines in ameliorated/non-ameliorated soils.
  T. Mahmood , G. Shabbir , M. Sarfraz , M. Sadiq , M. K. Bhatti , S. M. Mehdi , M. Jamil and G. Hassan
  An experiment involving 8 x 8 diallel crossing was conducted with rice to investigate the nature of gene action in governing the various traits studied and to explore the combining ability behavior of various genotypes used in the studies. Twelve agro-physiological characters were included in the study in F1 generation. High additive effects were recorded for plant height, panicle length, productive tillers/plant and primary branches/panicle. The non-additive effects were more pronounced for panicle fertility, days to maturity, shoot dry weight, paddy yield; Na, Ca and K contents of the shoot and K/Na ratio of the shoot. Out of the height parental lines/varieties studied Jhona-349 and Bas-385, respectively, proved to be the best general and specific combiners in the experiment under salinized soil conditions.
  M. Arshad Ullah , M. Sarfraz , S. M. Mehdi , M. Sadiq , G. Hassan and M. Jamil
  A field experiment was conducted to investigate effect of micronutrients (ZnSO4, MnSO4 and FeSO4) as pre-sowing seed treatment of Peela Raya (Brassica carianata L.). Seed treatments comprised of control (un-soaked), 12 hours soaking of seed in distilled water and in solutions of 0.5 M FeSO4, 0.5 M MnSO4 and 0.5 M ZnSO4. The soaked seed was then dried under the shade for 12 hours before sowing. The results showed that yield parameters such as number of primary branches per plant, plant height at maturity, days to 50% flowering, number of pods per plant, number of seeds per pod were affected to a considerable extent. Seeds treated with ZnSO4 gave the highest values of yield parameters.
  M. Sadiq , M. Jamil , S. M. Mehdi , M. Sarfraz , M. R. Gondal and G. Hassan
  Effect of various weedicides with different doses was studied for chemical weed control and yield of lentil crop. Stomp 330 EC (Pendimothalim) pre-emergence @ 1.00, 1.25 and 1.50 kg ai ha-1, Treflan-R 48 EC (Trifluralin), pre-emergence incorporated @ 0.25, 0.50 and 0.75 kg ai ha-1 and Fusillade 25 EC (Flauzifop butyl) post-emergence @ 0.125, 0.250 and 0.500 kg ai ha-1 were compared with hand weeding on sandy loam saline-sodic soil. The soil having ECe 4.9 dS m-1, pHs 8.70 and SAR 18.10 (m mol l-1) ½ was selected. The test variety was masoor-85. All the weedicides at different doses significantly controlled the weeds but stomp @ 1.50 kg ai ha-1 pre-emergence application produced higher grain yield (1465.00 kg ha-1) among all other treatments which was followed by stomp @ 1.25 kg ai ha-1 (1405.90 kg ha-1) and hand weeding (1405.42 kg ha-1).
  M. Asghar , M. Sadiq , S. M. Mehdi , M. Sarfraz , G. Hassan and R. Ahmad
  The results indicated that maximum yield of paddy was obtained from those plots which were transplanted on 20th July except 1997 where 5th August date gave the maximum but non-significant yield. Among the varieties Shaheen performed better than others. Straw yield decreased with the delay in transplanting irrespective of season. Maximum straw was produced when the lines/varieties were transplanted on 20th June followed by 5th July, 20th July and 5th August in all the years. Among the lines/varieties tested Shaheen produced the least straw. The results indicated that maximum yield of paddy was obtained from those plots which were transplanted on 20th July except 1997 where 5th August date gave the maximum but non-significant yield. Among the varieties Shaheen performed better than others. Straw yield decreased with the delay in transplanting irrespective of season. Maximum straw was produced when the lines/varieties were transplanted on 20th June followed by 5th July, 20th July and 5th August in all the years. Among the lines/varieties tested Shaheen produced the least straw.
  S. M. Mehdi , G. Hassan , M. Sarfraz , M. Sadiq , N. M. Hassan and G. Shabbir
  Potassium deficiency symptoms were observed on rice 1999 in a number of fields throughout the Hafizabad district. Soil and plant samples from 98 rice fields showing K deficiency symptoms were collected. These soil and plant sample were analyzed for K contents. All the 98 plant samples had low K contents according to critical limits while soil samples were tested medium in ammonium acetate (CH -CO-O-NH ) extractable K. In the same year K was applied to 3 4 rice crop @ 62.5 Kg haG showing K deficiency symptoms at 11 sites. The paddy and straw yields improved from 4.17 1 to 36.20 % and 2.94 to 40.0 % over control by the application of K, respectively. Similarly K concentration also increased in both paddy and straw over control, by applying K, from 18.75 to 36.59 % and 6.70 to 14. 46 % respectively. Potassium uptake by paddy and straw yields and total K uptake also increased by applying K over control.
 
 
 
Copyright   |   Desclaimer   |    Privacy Policy   |   Browsers   |   Accessibility