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Articles by M. Arshad
Total Records ( 16 ) for M. Arshad
  Muhammad Afzal , M. Arshad , M. Idrees and Noor Illahi
  Studies were conducted at Central Cotton Research Institute, Multan, to exploit the yield response of five newly evolved cotton genotypes. The highest seed cotton yield was noted in CIM-435 followed by BH-118. The longest staple length was found by genotype CIM-435. MNH-554 was at the top in respect of ginning out turn percentage, followed by CIM-435. The boll weight was highest in CIM-435.The highest numbers of bolls/plant were found in BH-118. DNH-49 had the shortest plant height followed by CIM-435, which is quite desirable. It is suggested that the newly evolved genotype CIM-435 is the best, among all the genotypes tested.
  Z. Ahmad , F. Azam , T. Mahmood , M. Arshad and S. Nadeem
  A pot experiment was conducted in the greenhouse to evaluate the effect of calcium carbide (as a source of ethylene) on some agronomic parameters of wheat (Triticum aestivum L., var. Inqalab-91) that was grown without or with two levels of N, P and K fertilizers (120-90-60 kg ha-1 and 60-45-30 kg ha-1). Half dose of N and full dose of P and K was applied at sowing while remaining half after one week of germination. Calcium carbide as a source of ethylene was applied at 60 kg ha-1 after 2 and 8 weeks of germination. A factorial completely randomized design was followed with nine treatments each with three replicates. Data regarding plant height, number of tillers, length of spike, number of spikelets spike-1 and grain yield was recorded. Plant height, number of tillers and spike length were significantly affected when CaC2 was applied after one week of germination while number of spikelets and grain yield was maximum when CaC2 was applied after 8 weeks of germination.
  M. T. Rassol , M. Arshad and M. I. Ahmad
  The parameters of Generalized Logestic Distribution are estimated by method of Probability Weighted Moments (PWM). Finite sample properties of PWM estimators are investigated through computer simulations and PWM estimators seem to outperform the Method Of Moments (MOM) particularly for small sample in terms of bias, variances and Root Mean Square (RMS).
  M. Arshad , M. T. Rasool and M. I. Ahmad
  The Kolmogorov- Smirnov Statistic is considered for testing the goodness of fit of the three parameter Generalized Pareto distribution. The statistic for testing the goodness of fit of the completely specified distribution are modified by replacing the Generalized Pareto distribution parameters by their probability weighted moments estimates. The Table of critical values is derived for this empirical distribution function test for various sample sizes.
  M. Arshad , M.T. Rasool and M.I. Ahmad
  The Generalized Pareto Distribution is considered as a model for maximum rainfall data in Pakistan. The rain fall data available for ten stations in Pakistan is utilized. The test statistics of Kolmogrov Smirnov, Cramer Von Mises, Anderson Darling and Modified Anderson Darling are obtained. The rainfall intensity estimates are derived with different return periods.
  M.T. Rasool , M. Arshad and M.I. Ahmad
  An application for Generalized Logistic Distribution (GLD) estimation by Probability Weighted Moments (PWM) was made on 24-hours maximum rainfall events recorded for different cities of Pakistan to Faisalabad, Mianwali, Khanpur, Khushab, Murree, Bhawalpur, Jehlum, Islamabad and Sialkot. The goodness of fit of GLD estimated by PWM method was examined by Anderson Darlings’ g Statistics. The hypothesis of GLD as the assumed distribution was accepted for every city.
  M. Arshad , M.T. Rasool and M.I. Ahmad
  For the power study of empirical distribution function tests, the Generalized Pareto distribution is considered. Four empirical distribution function tests i.e., Kolmogorov Smirnov, Cramer Von Mises, Anderson Darling and Modified Anderson Darling tests are compared for Generalized Pareto distribution. In the study four symmetrical and four skewed distributions are used as an alternative. The power comparisons are made using Monte Carlo methods at 5% and 10% significance levels for various sample sizes.
  M. Arshad , M.T. Rasool and M.I. Ahmad
  The Anderson Darling and Modified Anderson Darling test statistics are considered for testing the goodness of fit of the three parameters Generalized Pareto Distribution. The test statistics for testing the goodness of fit of the completely specified distribution are modified by replacing the Generalized Pareto distribution by their probability weighted moment estimates. The tables for critical values are derived for these empirical distribution function tests for various sample sizes.
  Sadia Alam , Asghar Ali , I.A. Qamar , M. Arshad and Salim Sheikh
  The present project was aimed to determine the correlation coefficients among different economically important traits using three varieties of Sorghum bicolor, and to ascertain the best combinations of characters to provide an ease to the breeders for improving those characters to improve biomass and yield. The sorghum varieties were PARC SS-1, PARC SS-2, and Pothwar 3-9 as control. The experiment was planted in July, 1998 at National Agricultural Research Centre (NARC), Islamabad in Randomized Complete Block Design (RCBD) with 3 replications. The plant observations were recorded from five earmarked plants in each plot and replication. The characters for observations were plant height, panicle length, 100-seed weight, number of grains/plant, days to 50% flowering, days to maturity, grain yield, stover yield and total dry matter (TDM). All traits were positively highly significantly (P<0.01) correlated with one another and yield. These findings indicate great scope for improvement in sorghum yield by improving the traits of 100-seed weight, panicle length, plant height and days to 50% flowering which are important yield components.
  Zahida Tasawar , M. Arshad and Sikandar Hayat
  One hundred and twenty fishes (Labeo rohita) were examined for ectoparasites. Four species of the genus Lernaea recorded were L. polymorpha, L. cyprinacea, L. oryzophila and L. lophiara. The overall prevalence of ectoparasites was studied and observed that L. polymorpha had maximum overall prevalence (5.83%) followed by L. cyprinacea (5%), L. oryzophila (1.66%) and L. lophiara (1.66%). L. polymorpha and L. cyprinacea were the most abundant ectoparasites in mixed infestation and L. cyprinacea had highest parasite burden (4). Maximum intensity of infestation in L. rohita for L. cyprinacea (23), L. polymorpha (9), L. oryzophila (2) and L. lophiara (1) was recorded in 10-265g weight group, while minimum in 522-777g, 778-1033g, 1034-1289g and 1290-1540g weight groups. The infestation was not observed in minimum and maximum length ranges of host.
  Saima Bashir , Asghar Ali , I.A. Qamar , M. Arshad , Salim Sheikh and Muhammad Asif
  To determine the correlation coefficients for different economically important traits using three warm-season forage legume species of cowpea (Vigna unguiculata (L.) Walp.), lablab bean (Lablab purpureus L.) and rice bean (Vigna umbellata Thunb.), the observations were recorded on plant height, number of branches/plant, number of pods/peduncle, number of pods/plant, number of seeds/pod, pod length, days to 50% flowering, 100-seed weight, days to maturity, grain yield, straw yield and biomass. Simple correlation was used to see the association among plant traits. The species were significantly (P 05) different for most of the parameters studied showing variability among the genotypes for those characters. A significant (P<0.05) positive correlation was observed for plant height with pod length and 100-seed weight, number of branches/plant with days to 50% flowering and days to maturity, number of pods/peduncle with number of pods/plant, pod length with seed size, number of seeds/pod with pod length, days to 50% flowering with days to maturity, grain yield with straw yield and TDM (total dry matter) and straw yield with TDM. It indicates that these positive associations may be exploited for any improvement work of the traits in warm-season forage legumes to improve their overall productivity and production.
  Amber Jilani , Imtiaz A. Qamar , Asghar Ali and M. Arshad
  To determine forage yield and crude protein (CP) content in four legume species viz. cowpea, lablab bean, rice bean and sesbania along with a non-leguminous reference crop of sorghum, a study was carried out . The highest dry weight of 4 t ha-1 was obtained from sesbania and sorghum and the lowest dry weight of 2 t ha-1 from cowpea was found. Maximum and minimum heights of 144 and 86 cm were obtained from sesbania and rice bean respectively. The highest fresh matter yield of 17 t ha-1 while the lowest of 9 t ha-1 was obtained from sorghum and lablab beans respectively. The highest crude protein (CP) yield of 581 kg ha-1 was recorded from sesbania.
  Maria Ali , Imtiaz A. Qamar , Asghar Ali , M. Arshad and Javed Iqbal
  Yield and forage quality was estimated for buffel grass, blue panic grass, love grass, napier grass and mott grass was estimated. Mott grass out-yielded all other grasses in terms of plant height (248 cm), number of tillers per plant (96), dry matter yield (22 t )ha -1 while love grass was least productive with plant height of 121 cm, dry matter yield of 2.9 t ha -1 and crude protein of 75.3 kgha -1. Mott grass may be regarded as the best choice for high forage yield and crude protein content in the Pothwar plateau conditions.
  Fouzia Sultana , Imtiaz A. Qamar , M.I. Sultani , Asghar Ali and M. Arshad
  Highest forage yield, protein yield and carrying capacity was recorded in case of elephant followed by mott grass, blue panic grass and sesbania,. Crude protein content was highest sesbania, followed by mott grass, elephant grass and blue panic grass. It was concluded that rangeland can be improved by reseeding with improved varieties of forage grasses and legumes.
  Khalid Rafiq , M. Maqsood , H. N. Asghar , M. Arshad and M. Nawaz
  This study was undertaken to determine the effect of four moisture regimes i.e. I1 (77.5), I2 (100), I3 (122.5) and I4 (145) cm during 1992 and 1993. The study revealed that each additional level of moisture regime increased plant height, grain yield and yield components significantly. Number of panicle bearing tillers hill -1, and number of spikelet panicle -1 were significantly higher in I4 (145 cm). Significantly higher grain yield were produced by I4 (145 cm). Effect of irrigation was most pronounced on the yield components which developed fully at optimum irrigation level (I4). Consequently, their contribution to grain yield was substantially increased.
  S.M. Iqbal , A. Ghafoor , M. Arshad and M. Bashir
  In order to identify sources of genetic resistance against charcoal rot disease in urdbean caused by Macrophomina phaseolina (Tassi) Goid, 71 germplasm accessions were evaluated by paper towel technique under Laboratory conditions. It was observed that 6 genotypes (45718, 45719, 45721, 45731, VH9440034-1 and VH9440034-7) were highly resistant, whereas 7 were resistant and 10 were moderately resistant. Sixteen genotypes were tolerant whereas rest of the accessions was susceptible or highly susceptible. The paper towel technique proved to be were and efficient for identification of resistance in urdbean for charcoal rot disease. Resistance observed in this experiment will also be confirmed under field conditions in future.
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