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Articles by Nazir Hussain
Total Records ( 7 ) for Nazir Hussain
  Nazir Hussain , Fakhar Mujeeb , M. Tahir , G. D. Khan , N. M. Hassan and Abdul Bari
  This research work was conducted to evaluate the efficacy of Rhizobium trifolii in enhancing the salt tolerance of Trifolium alexandrinum (Berseem or Egyptian clover), protein value of fodder and nitrogen fixation in the soil. Three salinity levels (8,12, 16 dS m-1) were developed in a loamy soil in pots. A similar set of inoculated pots with Rhizobium trifolii was also arranged. Berseem crop was grown in both of the sets. The data indicated that total green and dry matter yield as well as root dry weight of berseem decreased consecutively with increase in salinity level while Rhizobium inoculation created a positive effect and these parameters remained significantly higher than the similar levels without inoculation. Nodulation and nodule dry weight was promoted markedly by inoculation and depressed significantly with consistent increase in salinity. Nitrogen percentage of berseem shoot increased with inoculation and decreased significantly at 8 dS m-1 but further increase in salinity had a little effect. Percent nitrogen of soil and nitrogen fixation in soil was enhanced significantly by inoculation and decreased significantly with increase in salinity. Inoculation was helpful to keep the protein content higher. Soil ECe and pH were lowered.
  Nazir Hussain , Arshad Ali , A.G. Khan , Obaid-Ur-Rehman and M. Tahir
  The water culture studies were conducted to investigate a physiological mechanism. Performance of this rice variety, ion concentration and uptake were studied under stress of three salinity levels (30, 60 and 90 mM1-1) created by NaCI. The results indicated that shoot dry matter was not affected significantly with all the three levels of salinity. However the root dry matter was affected appreciably by the levels of 60 and 90 mM NaCI. Sodium concentration and uptake was enhanced significantly by root and shoot with the first level of salinity (30 mM) but thereafter the differences were non-significant indicating the preferential absorption of this cation. The K concentration was decreased significantly in shoots with all the levels. The impact was less pronounced in roots as far as K absorption was concerned. There was no effect on Ca and Mg. The values of K: Na, Ca: Na and Ca+Mg: Na ratios in shoot and root were comparatively narrow under stress conditions which indicated that Shaheen Basmati variety used ion selectivity mechanism in showing its tolerance when grown in saline medium.
  Nazir Hussain , Ghulam Sarwar , J. Iqbal , R.A. Roy and Jalil Akhtar
  Limited supply of canal water forces for seeking alternative sources for the supplementation. For this purpose, the quality of Marh-Chiniot (M-C) drain water was tested in different seasons from irrigation/ reclamation point of view. Results indicated that EC of the waters varied in sampling seasons at different sampling points. In general, EC values ranged between 0.25 and 2.69 dSm-1. Its mean values were calculated as 1.08, 1.06, 1.83 and 1.85 dSm-1 during August 1997, December 1997, June 1998 and February 1999 respectively. The mean SAR of these waters was found below the safe limit of 10 (m.mol L-1) ½ with only one exception for June 1998 when it was having this parameter in marginal range. Respective mean values of SAR for the above months were 8.26, 5.42, 11.79 and 9.5 (m.mol L-1) ½. Values of RSC were found generally high with its computed means of 4.71, 4.13, 7.98 and 6.31 me. L-1 for August, December 1997, June 1998 and February 1999 respectively. The quality of waters varied from upstream to downstream, without a definite trend. The seasonal effect was very much pronounced depending upon the flow of water. It may be concluded that this water can be used for crop production and reclamation purposes with some suitable management practices. However, frequent quality assessment will be needed especially, in different seasons.
  Nazir Hussain , G. D. Khan , M. Tahir , F. Mujeeb , M. Arshad Ullah and Afzal Ahmad
  Green house studies were conducted to assess the effect of different moisture and salinity regimes on germination; plant height and grain yield of wheat LU 26 S. Four moisture levels (M1 = 20, M2 = 40, M3 = 60 and M4 = 100% of saturation percentage) and four salinity levels (S1 = control, S2 = 10, S3 = 20 and S4 = 30dS m-1) were tested. Results indicated that germination, plant height and grain yield decreased progressively with increase in salinity. Total germination percentage increased up to 40% moisture content beyond which it registered a decrease. Maximum plant height and grain yield per plant was noted at 60% moisture combination with all the salinity levels were minimum values were obtained at 100% soil moisture except in case of control. Sodium and chloride concentration in the second leaf exhibited a progressive increasing trend with increase in salinity. Maximum concentrations of these ions were, however, recorded at 100% moisture level followed by 20% soil moisture, while at 40% and 60% soil moisture levels minimum accumulations were observed. Maximum k+ in leaves was determined at 60% moisture, which decreased with increase in salinity.
  Ghulam Sarwar , Nazir Hussain , Fakhar Mujeeb , H. Schmeisky and Ghulam Hassan
  A pot experiment was conducted at University of Kassel, Witzenhausen Germany. Three types of soils were used for this purpose. Biocompost is the form of compost prepared from kitchen wastes. This compost was analyzed before application (pH = 7.7 and C: N ratio = 14.2:1). Biocompost was applied to each soil type at 5 and 10% of soil volume. Lolium perenne grass was grown in all the pots. The experiment had four replications. This grass was harvested at the age of one month and was oven dried at 60 oC. This plant material was then analyzed for organic matter; N, Ca, Mg, K and P contents. Soil samples were also taken from all the pots and analyzed for pH, EC, organic matter, N, C, C/N ratio and mineral nutrients (Ca, Mg, K, P and Cl). All data were analyzed statistically. It was observed that use of biocompost at both the levels (5 and 10%) enhanced the soil pH, EC, organic matter, N and C% with a net decrease in C/N ratio. Organic matter and N percentages in plant material were increased with the application of biocompost. Contents of mineral nutrients in the soil were also increased by the use/addition of biocompost. The resultant improvements in soils, contributed towards significant enhancement in dry matter yield of Lolium perenne grass.
  Nazir Hussain , M. Anwar Zaka , M. Tahir , M. Arshad Ullah and Zahid Saeed
  Three barley varieties (Jao–83, Jao–85 and As–54) were tested in solution culture for three salinity levels (S1= 0–40me l-1, S2=160-200me l-1, S3=360-400me l-1) and four Ca concentrations (0, 10, 20, 40me l-1). Maximum number of leaves per hill was recorded at low calcium concentration under normal salinity conditions but at higher salinity levels this parameter increased with increasing CaCl2 levels. Barley variety Jao-83 produced more tillers per hill than Jao-85 and As-54. All the varieties yielded maximum shoots dry weights at less CaCl2 concentration and lower salinity level. However, CaCl2 concentration of 40me l-1 proved helpful to mitigate the ill effect of higher salinity level. Similar results were noted in case of length and dry weight of roots. The variety Jao-83 gave maximum root dry weight as well.
  Nazir Hussain , Manzoor Ahmad , M. Salim and A. Ali
  The experiment was conducted in the field on a normal soil. Brackish tube well water was used for irrigating wheat and rice crops without any amendment and with gypsum (equal to sodium contents of irrigation water and two times its sodium contents). Wheat and rice crops were grown from Rabi 1995-96 to Rabi 1998-99. Grain and paddy yield along with Electrical Conductivity (EC), Sodium Adsorption Ratio (SAR) and pH of the soils were recorded. Use of brackish water without any amendment resulted in an increase in EC and SAR of the soil and caused a decrease in crop yield. Use of the same water in combination with two times its sodium contents resulted in normal yield of both the crops without any harmful effect on the soil. Gypsum equal to sodium contents of the irrigation water proved comparatively less effective.
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