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Pakistan Journal of Nematology: Recent submissions

Now showing items 201-220 of 239

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 ...
TYLENCHORHYNCHUS SWATIENSIS N.SP. (NEMATODA: TYLENCHIDA) FROM THE SWAT AREA OF PAKISTAN

K. NASIRA; F. SHAHINA; M.A. MAQBOOL (Karachi, National Nematological Research Centre (NNRC), University of Karachi,, 1991-01-01)

Tylenchorhynchus swatiensis n. sp. is described and illustrated from specimens on Prunus ameniaca from Swat, Pakistan. This new species can be distinguished from all other species of the genus Tylenchorhynchus on the basis ...
POST INFECTION LIFE CYCLE OF THE RENIFORM NEMATODE (ROTYLENCHULUS RENIFORMIS) ON BLACK-GRAM (VIGNA MUNGO L.)

RAMAN L. MIDHA, P.C. TRIVEDI (National Nematological Research Centre (NNRC), University of Karachi,, 1990-01-05)

The post infection life cycle of reniform nematode on black-gram was completed within 10 to 15 days of inoculation with pm-adult reniform females. The pre-adult females penetrated host roots within 24 hrs of inoculation ...
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 ...
TAXONOMIC STUDIES ON PARASITIC AND SOIL NEMATODES FOUND ASSOCIATED WITH WHEAT IN PAKISTAN

Y. I. ERUM; F. SHAHINA (Karachi, National Nematological Research Centre (NNRC), University of Karachi,, 2010-01-01)
EMBRYONIC AND POSTEMBRYONIC DEVELOPMENTAL STAGES OF HETERODERA ZEAE KOSHY ET AL., 1971 ON ZEA MAYS

F. SHAHINA; M.A. MAQBOOL (Karachi: Pakistan Botanical Society, University of Karachi, 1989-01-20)

Heterodera zeae completed embryonic development in 8-9 days, and postembryonic development in 17-19 days under field condition. Larvae penetrated roots of Zea mays in 3-4 days. Second molt occurred in 5 days, thirt molt ...
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. ...
DESCRIPTION OF AMPLIMERLINIUS PARBATI N. SP. (NEMATODA: TYLENCHIDA) WITH OBSERVATION ON MERLINIUS ADAKENSIS FROM NORTHERN AREAS OF PAKISTAN

B. ZARINA, M.A. MAQBOOL (National Nematological Research Centre (NNRC), University of Karachi,, 1990-01-02)

Specimens of Amplimerlinius parbati n. sp. were detected from soil around the roots of fem (Cheilanthes sp.) rom Saifulmuluk, NWFP, Pakistan. This species differs from all the known species of genus Amplimerlinius Siddiqi, ...
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; ...
DESCRIPTION OF HOPLOLAIMUS TABACUM N. SP. (NEMATODA: HOPLOLAIMIDAE) FROM PAKISTAN WITH MORPHOMETRIC DATA ON H. AEGYPTI

K. FIROZA; K. NASIRA; M.A. MAQBOOL (National Nematological Research Centre (NNRC), University of Karachi,, 1990-01-01)

Hoplolaimus tabacum n. sp. is described an illustrated from specimens on Nicotiana tabacum from Mardan, Pakistan.This new species can be distinguished from all other species of the genus Hoplolaimus on the basis of a ...
RELATIVE SUSCEPTIBILITY OF CERTAIN MEDICINAL AND AROMATIC PLANTS TO ROOT-KNOT NEMATODES

PATE, C.C.; PATEL, H.R.; PATEL, D.J.; THAKAR, N.A. (Karachi, National Nematological Research Centre (NNRC), University of Karachi,, 1989-07-03)

Medicinal and aromatic plants have immense value for the treatment of chronic diseases of man and animal (Atal & Kapur, 1982). These crops when grown in light soils suffer from nematode attack. Heavy infection of root-knot ...
SUTDIES ON THE CORN CYST NEMATODE (CCN) HETERODERA ZEAE INEGYPT: IV-VARIATION IN DEVELOPMENT AND REPRODUCTION OF FOUR DIFFERENT POPULATIONS ON SOME CORN CULTIVARS

A.M. KHER; A.A. FARAHAT; S.K. ABADIR (Karachi, National Nematological Research Centre (NNRC), University of Karachi,, 1989-07-01)

Four populations of the corn cyst nematode, Heterodera zeae – were collected from corn fields in four different counties in Egypt. In a green-house experiment, the development and reproduction of CCN populations on 15 corn ...
PLANT PARASITIC NEMATODES ASSOCIATED WITH TOBACCO (NICOTIANA TABACUM L.) IN SOKOTO STATE OF NIGERIA

FASAHAT A. KHAN (National Nematological Research Centre (NNRC), University of Karachi,, 1990-01-04)

Surveys of tobacco-growing fields of Sokoto state revealed the presence of 17 different plantparasitic ematode genera in the rhizosphere and roots of this crop in low to high numbers. Meloidogyne incognita, M. javanica, ...
EFFECT OF THE RATE OF SOIL MOISTURE LOSS ON THE SURVIVAL, INFECTIVITY AND DEVELOPMENT OF ROTYLENCHULUS RENIFORMIS, THE RENIFORM NEMATODE

M. SEHGAL; H.S. GAUR (Karachi, National Nematological Research Centre (NNRC), University of Karachi,, 1989-07-04)

The rate of moisture loss from soil was positively correlated with rate of development, infectivity, and mortality of Rotylenchulus reniformis. Soil moisture tension of 3.99, 25.6, 39.2, and 48.0 bars corresponded to R. ...
ADDITIONAL HOSTS OF ROOT-KNOT NEMATODES IN PAKISTAN

B. ZARINA; M.A. MAQBOOL (Karachi, National Nematological Research Centre (NNRC), University of Karachi,, 1989-01-10)

During a recent survey of phyto nematodes heavy galling of roots of rose (Rosa indica) and kutta grass (Setaria verticillata) growing at the University of Karachi campus was found due to infestation of root knot nematodes.
PATHOGENICITY AND SCREENING OF GROUNDNUT CULTIVARS AGAINST MELOIDOGYNE ARENARIA

PRASAD, D. (Karachi, National Nematological Research Centre (NNRC), University of Karachi,, 1989-07-06)

One week old seedling of three groundnut cultivars PG-1, M-13 and J-11 inoculated with different levels ofMeloidogyne arenaria showed that the growth of plants was adversely affected with increasing nematode inoculum,whereas ...

Now showing items 201-220 of 239

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