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Issue 02

Issue 02

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RELATIONSHIP OF NEMATODES TO YIELD OF MAIZE GROWN UNDER DIFFERENT CULTIVATION REGIMES

MAHFOUZ M; ABD-ELGAWAD (Karachi, National Nematological Research Centre (NNRC), University of Karachi,, 1990-07-11)

Relationships between population densities of different nematode species at harvest and yield of maize were examined for 4 cropping sequences on sandy loam soil in Ismailia, Egypt. Correlations calculated between the total ...
SEARCH FOR RESISTANCE TO ROOT-KNOT (MELOIDOGYNE INCOGNITA AND M. JAVANICA) AND RENIFORM (ROTYLENCHULUS RENIFORMIS) NEMATODES IN COWPEA

PATEL, B.A.; CHAVDA, J.C.; PATEL, D.J. (Karachi, National Nematological Research Centre (NNRC), University of Karachi,, 1990-07-10)

Cowpea (Vigna unguiculata) is severely affected by root-knot nematodes, Meloidogyne spp., (Swarup, 1962) and by Rotylenchulus reniformis Linford & Oliveria, 1940 (Seshadri, 1970). R. reniformis causes 13% loss in cowpea ...
INFLUENCE OF SALINITY STRESSES ON HATCHING AND JUVENILE MORTALITY OF ROOT-KNOT NEMATODES, MELOIDOGYNE INCOGNITA (RACE 2) AND MELOIDOGYNE JAVANICA

KHAN, ABRAR AHMAD; KHAN, M. WAJID (Karachi, National Nematological Research Centre (NNRC), University of Karachi,, 1990-07-09)

Effect of different soil salinity levels (ECe) of NaCl and NaHCO3 on hatching and mortality of juveniles (J2) or root-knot nematodes, Meloidogyne incognita (race 2) and M. javanica were studied in artificial treatment. A ...
EFFICACY OF CERTAIN VITAMINS IN CONTROLLING THE ROOT KNOT NEMATODE, MELOIDOGYNE INCOGNITA ON TOMATO

S.A. MONTASSER (Karachi, National Nematological Research Centre (NNRC), University of Karachi,, 1990-07-08)

The efficacy of 3 vitamins applied as foliar sprays in controlling the rootknot nematode,Meloidogyne incognita, were evaluated under greenhouse conditions. All concentrations of ascorbic acid, riboflavin and nicotinic ...
EFFICACY OF PAECILOMYCES LILACINUS FOR CONTROLLING MELOIDOGYNE JAVANICA ON TOMATO IN GREENHOUSE IN INDIA

KHAN, M. WAJID; MEHDI NASR ESFAHANI (Karachi, National Nematological Research Centre (NNRC), University of Karachi,, 1990-07-07)

Efficacy of a soil hyphomycete, Paecilomyces lilacinus, an opportunistic bicontrol agent, in controlling root-knot nematode Meloidogyne javanica on tomato in greenhouse was investigated. P. lilacinus effectively promoted growth ...
FUNGI INVOLVED IN CAUSING EGG CONTORTION IN HETERODERA SCHACHTII

H.M. SALEH (Karachi, National Nematological Research Centre (NNRC), University of Karachi,, 1990-07-06)

Diseased Heterodera schachtii eggs showing contortion symptoms were observed in 7.2 % of cyst population in the field. The present work aimed to identify fungi responsible for such symptoms.Preussia sp., and Microascus ...
STUDIES ON THE GENUS NEOPSILENCHUS (NEMATODA: TYLENCHIDAE) WITH DESCRIPTION OF ACUSILENCHUS N. SUBGEN., AND THREE NEW SPECIES

F. SHAHINA; M.A. MAQBOOL (Karachi, National Nematological Research Centre (NNRC), University of Karachi,, 1990-07-02)

The genus Neopsilenchus Thome & Malek, 1968 is divided into two subgenera –Neopsilenchus (n.rank) and Acusilenchus n.subgen. Neopsilenchus (Neopsilenchus) n.rank is characterized by its stylet cylindroid, lumen distinct, ...
HOST RANGE STUDIES OF HETERODERA ZEAE AND H. AVENAE

F. SHAHINA; M.A. MAQBOOL (Karachi, National Nematological Research Centre (NNRC), University of Karachi,, 1990-07-05)

Twenty eight gramineous and 10 non-gramineous plants were tested against Heterodera zeaeand H. avenae. With both cyst nematodes, mostly the gramineous plants were found susceptible whereas plants belonging to the families ...
DESCRIPTION OF BOLEODORUS AZADKASHMIRENSIS N. SP. (NEMATODA: TYLENCHIDAE) AND OBSERVATION ON FILENCHUS VULGARIS (BRZESKI, 1963) LOWNSBERY & LOWNSBERY, 1985 FROM PAKISTAN

M.A. MAQBOOL; F. SHAHINA; F. SHAHINA (Karachi, National Nematological Research Centre (NNRC), University of Karachi,, 1990-07-01)

Specimens of Boleodorus azadkashmirensis n. sp. and Filenchus vulgaris new record collected from Muzaffarabad, Azad Kashmir, Pakistan are described and illustrated herein. B. azadkashmirensis n. sp. comes close to B. ...
TWO NEW SPECIES OF THE GENUS TYLENCHORHYNCHUS COBB, 1913 (NEMATODA: TYLENCHORHYNCHINAE) FROM INDIA

KHAN, FASAHAT A. (Karachi, National Nematological Research Centre (NNRC), University of Karachi,, 1990-07-04)

Two new species of the genus Tylenchorhynchus Cobb, 1913 from India are described and illustrated. T. clavus n. sp. differs from closely related species viz., T. crassicaudatus Williams, 1960;T. clavicauda Seinhorst, 1968; ...

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