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Abstract : Exceptional Sets for Subharmonic Functions
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Abstract: Blanchet has shown that hypersurfaces of class C1 are removable singularities for subharmonic functions, provided the considered subharmonic functions satisfy certain assumptions. Later we showed that, in certain cases, it is sufficient that the exceptional sets are of finite (n-1)-dimensional Hausdorff measure. Now we improve our results still further, relaxing our previous assumptions imposed on the considered subharmonic functions. Keywords: Subharmonic, Hausdorff measure, exceptional sets. Download Full Article |
Abstract : Effect of Sowing Dates on Growth, Yield and Grain Quality of Hybrid Maize
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Abstract: This study was conducted during 2013-14 at Student Farm, Department of Agronomy, Faculty of Crop Production, Sindh Agriculture University, Tandojam. The experiment was laid out in Randomized Complete Block Design (factorial) with three replications having net plot size 3x4m=(12m2). The effect of three sowing dates 25th October, 10th November and 25th November on three hybrid maize varieties Pioneer 1543, Syngenta 4841 and Monsanto DK-6142 was studied. Yield components and grain quality parameters such as plant height, number of cobs per plant, cob length, grains per cob, grain yield, protein, starch and oil content of maize varieties were significantly affected by different sowing dates. It was concluded from the finding of present research work that all quantity and quality traits were promising when the sowing was completed up to 25th October. Further delay of the sowing had negative effects on the performance of quantity and quality of maize. Hybrid maize variety Pioneer 1543 was promising variety which gave the grain yield more than 8312 kg ha-1. Keywords: Maize (Zea mays L.), hybrid, sowing dates, grain yield. Download Full Article |
Abstract : Effects of Bio-Pesticides on Biology of Chrysoperla carnea F. (Neuroptera: Chrysopidae)
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Abstract:The experiment was conducted on effects of bio-pesticides on biology of Chrysoperla carnea F. under laboratory conditions. The neem and datura leaf extracts were used as bio-pesticides and their effect was compared with confidor at 26±2°C, 65±5% R. H and photoperiod (16L: 8D) in the Department of Entomology, Sindh Agriculture University, Tandojam, Pakistan during 2014. The results shows that the incubation periods of eggs of C. carnea feeding on Aphis gossypii treated with neem, datura and confidor was 2.2, 2.5 and 3.6 days respectively. The result indicated that the total larval developmental period was 17.03, 13.3 and 15.09, respectively. The pupal period of C. carnea was 8.82 on neem, 10.9 on datura and 12.33 days on confidor. The result further revealed that the pre oviposition period of C. carnea was 6.35 on neem, 5.5 on datura and 3.6 on confidor. The oviposition period was 34.42 on neem, 30.6 on datura and 26.4 on confidor. The post oviposition period was significantly different was 8.5 days on neem 6.9 on datura and 4.7 on confidor. The maximum fecundity per female of C. carnea was 448.38 days on neem, 435.67 on datura and 413.67 on confidor. Similarly, maximum egg hatching percentage of C.carnea was recorded on neem followed by datura and confidor. However, the maximum egg mortality (37.65%) was recorded on confidor. However, minimum mortality of 1st, 2nd and 3rd instar larvae was recorded due to neem leaf extracts followed by datura and confidor. The pupal mortality was seen more on neem followed by datura and confidor. The highest adult mortality was obtained on neem followed by datura and confidor insecticide. Keywords: Chrysoperla carnea F., Bio-pesticides, Biology, Synthetic pesticides. Download Full Article |
Abstract : Rapid Urban Growth and Change in Urban and Municipal Limits of Bahawalpur City, Pakistan: A Spatio-Periodical Discourse
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Abstract: Cities all around the world being crowded rapidly with accelerating urban growth and resultant urbanization particularly in developing countries. Currently, Bahawalpur City is also experiencing rapid urban growth and change in its urban and municipal limits. Therefore, the key objectives of this research were to overview the urban population growth with passage of time, expansion in urban area and resultant delimitations in municipal limits of the city. Data about population figures and spatial change have been derived from various sources including census reports, Tehsil Municipal Administration (TMA), Punjab Development statistics etc. Periodical urban growth of the city is divided into four phases characterized with notable events that geared up the urban growth; particularly the last phase has brought more rapid changes. The population of the city is also surging rapidly. Urban area of Bahawalpur City was extended from 4,308.40 acres in 1974 to 7,373.9 acres in 2010, and had caused substantial reduction in agricultural land area and significant addition in residential area. Resultantly, City’s municipal limits also have been altered and reclassified due to this urban stress and extended enormously with considerable fluctuations in agricultural and non-agricultural land area. Presently, City is continuously expanding outward, mostly in the form of housing colonies, roads, shops etc. Keywords: Urban growth, municipal limits, agricultural land area, Bahawalpur |
