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Articles by M. Sadiq
Total Records ( 13 ) for M. Sadiq
  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 .
  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.
  S. M. Mehdi , A. M. Ranjha , M. Sarfraz , G. Hassan and M. Sadiq
  The physical, chemical, morphological and mineralogical properties of three soil series viz. Shahdara, the Sultanpur and the Lyallpur, forming a chrono-sequence, were determined to quantify the effect of time on soil formation. The data showed that the relative particle-size differentiation in various horizons of the profiles increased with age and an illuviated clay profile developed progressively. There was no consistent increase in organic matter content with age. This trend was, most probably, due to high temperature and low rainfall, which resulted in little accumulation of organic matter in all the cases. The amount of CaCO3 decreased with soil age, while no definite trend of the cation exchange capacity and NH4OAc extractable bases was observed. Both the ECe & pHs, decreased with soil age. The mineralogical variation of these alluvial soils was not found to be related to pedogenic processes but parent material. The illite content was the same through out the profile in all the series. Smectite was more in Shahdara and decreased with age. Vermiculite was absent while chlorite and kaolinites were present, though in minor amounts, in all the three series.
  A.G. Khan , G. Shabbir , M. Sadiq and G. Hassan
  Find rice candidate variety PB-95 was evaluated for its quality traits in comparison with shaheen Basmati and Super Basmati. The newly evolved cultivar PB-95 possesses extra long slender shape grain with higher degree of grain elongation, intermediate amylase content and gelatinization temperature. The candidate variety leads Super Basmati Shaheen Basmati for Kernal length, Kernal width, Kernal thickness and cooked grain length and elongation ratio with strong aroma.
  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.
  S.M. Mehdi , N. Sajjad , M. Sarfraz , B.Y. Khalid , G. Hassan and M. Sadiq
  A field investigation was carried out to compare the efficiency of different phosphatic fertilizers in salt affected soils at three different locations. Sites First and 2nd were saline sodic having coarse texture (loamy sand) while site third was sodic in nature and have fine texture (clay loam).All the sites were low in organic matter contents and extractable K while available P was in medium range. The sources of phosphorus tested were single super phosphate (SSP), triple super phosphate (TSP), diammonium phosphate (DAP) and nitrophos (N/P).The rate of phosphorus applied was 110 kg P2O5 ha-1 from all the sources along with N and K @ 140 and 70 kg ha-1 respectively. The results showed that grain and straw yields were improved by the application of phosphorus over control from all the sources. All the sources remained at par with each other at all the sites except DAP at site three (sodic) where it was found inferior to other sources used i.e. SSP, TSP and N/P. Phosphorus concentration in grain and straw was found non significant in all the treatments. While phosphorus (P) uptake was significantly affected by the phosphatic fertilizers application. Maximum P uptake was recorded in the treatment where TSP was applied except in grain at Ist site and in straw at 3rd site where SSP proved better. However both the sources remained at par with each other. Nitrophos in case of grain remained at par with TSP and SSP while in case of straw it was significantly inferior to TSP and SSP. Diammonium phosphate (DAP) was proved an inferior source at site Ist and 3rd than TSP and SSP. However P uptake in all the sources was significantly higher than control.
  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.
  A.M. Ranjha , M. Akram , S.M. Mehdi , M. Sadiq , M. Sarfraz and G. Hassan
  A total of 100 soil and 75 plant samples were collected for determination of nutritional status of citrus orchards in Sahiwal. The results showed that 8% soil samples were deficient in N, 4% in P, no one in K, 100% in Zn and no one in Cu, Fe and Mn. The extent of nutrients belonging to low category has been found as 88% in N, 56% in P, no one in K, 84% in Cu and no one in Fe and Mn. In sufficiency range, 4% soil samples were sufficient in N, 24% in P, 64% in K, 16% in Cu and 100% in Fe and Mn contents. Among high range of nutrients only 16% soil samples in P and 35% in K were found. In case of leaf samples, 40% were deficient in N, 28% in Zn, no one in P, K, Fe, Cu and Mn while 24% were low in N, 60% in K, 68% in Zn and no one in P, Cu, Fe and Mn and 32% were sufficient in N, 68% in P, 40% in K, 4% in Zn, 100% in Cu, Fe and Mn contents while 4% were high in N and 32% in P. Soil pH had a non significant negative correlation with leaf N, P, K, Zn, Fe and Mn and nonsignificant positive correlation with Cu. Soil organic matter had a highly significant positive correlation with leaf N and nonsignificant negative correlation with K, Cu and Mn and non significant positive correlation with P, Ca+Mg, Zn and Fe contents. Clay contents had a significant positive correlation with K and non-significant positive correlation with P, Ca+Mg, Zn and negative correlation with N, Cu, Fe and Mn but non significantly. A positive significant correlation was also found between soil N, Ca+Mg, Fe content and leaf N, Ca+Mg and soil P, K, Zn and Mn also had positive correlation with leaf P, K, Zn and Mn but non significantly. Soil Cu had negative correlation with leaf Cu but non-significantly.
  S. Ghaffar , M. S. Qureshi and M. Sadiq
  Experiment on comparative response of three varieties of barley i.e. Jau 83, Jau 87 and Haider 93 to water stress revealed that all varieties significantly differed in yield potential and exhibited different response to various treatments. The water stress imposed at early stages did not show any remarkable adverse effect on yield; however, yield was reduced by 62.29% when stress was applied at seed formation stage (ninety days old crop). Variety Jau 83 proved better than the other two.
  M. Ayyaz Khan , Naeem Ullah Khan , Khalil Ahmad , M. Safdar Baloch and M. Sadiq
  An experiment was carried out to see the effect of different NP levels on maize hybrid "3335". The fertilizer levels were 90-90-90, 90-120-90, 90-150-90, 150-90-90, 150-120-90, 150-150-90, 210-90-90, 210-120-90, and 210-150-90 Kg ha -1 NPK including control having no fertilizer. The results revealed that maximum plant height (175.8 cm), number of cobs/plant (2.067), number of grains/cob (374.3), 1000-grain weight (226.5 g), Biological yield (15.42 t ha -1), and grain yield (48.08 t ha -1) was obtained by the application of NPK @ 210-120-90 kg ha -1. This level proved to be the optimum for maize crop under local conditions of Dera Ismail Khan.
  Muhammad Iqbal , K. Ahmed , I. Ahmad , M. Sadiq and M.Y. Ashraf
  The effect of water stress on yield and yield components of two durum wheat varieties was studied at various growth stages, i.e. at vegetative, flowering or grain-filling stage and no stress (control). The decrease in grain yield per plant was more pronounced (72.62 percent) associated with a reduced number of grains per ear (59.62 percent) and 1000-grain weight (31.98 percent) under water stress applied at flowering stage. Stress at grain-filling stage was less effective than at vegetative and flowering stage in both varieties. Variety D-88628 was less affected which showed its adaptability under water stress conditions.
 
 
 
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