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Articles by M. Munir
Total Records ( 3 ) for M. Munir
  A.N. Mahar , M. Munir and K.B. Laghari
  Production and infectivity of Steinernema carpocapsae, S. abbasi, S. karii and S. riobravis (entomopathogenic nematodes) using larvae and pupae of diamondback moth were studied. Nematodes production of all species was determined by the number infective juveniles (IJs) established in DBM larvae and pupae using sand and filter paper bioassy. Maximum number of S. carpocapsae were produced at 25°C, however the production of other isolates was higher at 30°C. Infectivity tests carried out in sand media revealed that maximum IJs of S. carpocapsae were recovered from the DBM larvae and pupae at 25°C whereas other three isolates produced reasonable number of IJs at 30°C. Similarly, DBM pupae with cocoon produced higher number of IJs than without cocoon. The research indicated that application of nematodes with the knowledge of insect pest biology that represents a possible new strategy for controlling DBM larvae and pupae.
  A.N. Mahar , M. Munir and A.Q. Mahar
  Broth culture of Xenorhabdus nematophila and Photorhabdus luminescens have been observed lethal to the nymphs of locust Schistocerca gregaria when injected into the abdomen, applied orally, mixed with bran or applied to the foliage of food plants as compared to broth alone (control). A hyperbolic relationship was observed between different bacterial application methods of cells and their metabolites and time intervals. Bacterial cells and their metabolites caused more or less similar damage to the locust but it is supposed that the insect death was probably due to the toxic metabolites present in the bacterial cells. These bacterial cells were also recovered from the abdominal haemocoele indicating that bacterial symbionts do have a free-living existence and can enter in the haemocoele in the absence of nematode vector. If these bacterial symbionts are to be used for insect control, X. nematophila would be the most appropriate as it has never been previously reported from clinical specimens.
  M. Safeer-ul-Hassan , M. Munir , M.Y. Mujahid , N.S. Kisana , Zahid Akram and A. Wajid Nazeer
  Twenty four wheat genotypes including a check variety (Margalla-99) were planted in a Randomized Complete Block design with three replications during 2001-02 at National Agricultural Research Center, Islamabad. Data were recorded and analyzed on days to heading, days to maturity, plant height, spike length, number of spikelets per spike, number of grains per spike, grain weight per spike, 1000-grain weight and yield per plot. The genotypes were highly significant for all the traits except for yield per plot where a significant difference was observed among the genotypes. Maximum heritability was observed for days to heading (97.80%) and days to maturity (87.60%), while a minimum value of 24.27% was observed for yield per plot. Value of genetic advance ranged from a minimum of 0.06 for grain weight per spike to a maximum of 9.79 for yield per plot. The calculated correlation coefficients indicated that number of spikelets per spike, days to maturity and plant height were significantly positive correlated with grain yield per plot, while a non significant correlation was observed between grain yield per plot and number of grains per plot, days to heading, grain weight per spike, 1000-grain weight and spike length. Genotype V4 and V15 performed better for most of the traits and can be considered for release as varieties after further evaluation.
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