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Issue 02

Issue 02

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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 ...
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 ...
SCREENING FOR RESISTANCE IN CORN CULTIVARS AGAINST HETERODERA ZEAE

F. SHAHINA; M. ABID; M.A. MAQBOOL (Karachi, National Nematological Research Centre (NNRC), University of Karachi,, 1989-07-02)

The effect of corn cyst nematode (Heterodera zeae) on plant growth, root and shoot development, grain yield and final population of cyst was studied on 13 cultivars of maize grown in a green house plot heavily infested ...
STUDIES ON THE PATHOGENICITY OF MELOIDOGYNE INCOGNITA AND ROTYLENCHULUS RENIFORMIS ON COWPEA (VIGNA UNVUICULATA) VAR. PUSA BARSATI

KHAN, TABREIZ AHMAD; SYED ISRAR HUSAIN (Karachi, National Nematological Research Centre (NNRC), University of Karachi,, 1989-01-08)

There was a progressive decrease in plant growth of cowpea with increased inoculum level of Rotylenchulus reniformis and Meloidogyne incognita. Significant reduction in plant growth and nodulation in comparison to uninoculated ...
EFFECT OF DIFFERENT LEVELS OF SOIL SALINITY ON MELOIDOGYNE JAVANICA INFECTING OKRA AND BRINJAL

JAIN, R.K.; PARUTHI, I.J.; GUPTA, D.C.; MANGAL, J.L. (Karachi, National Nematological Research Centre (NNRC), University of Karachi,, 1989-01-09)

The interaction of different levels of soil salinity on Meloidogyne javanica infecting okra and brinjal was studied in pots with salinity levels of 0.65, 2, 4, 6 and 8 ds m-1.Irrespective of nematisation, reduction in ...
MELOIDOGYNE SPECIES IN MIXED CROPPING SYSTEMS IN THE RAINFOREST AND SAVANNAH ZONES OF NIGERIA

IDOWU, A.A.; FAWOLE, B. (Karachi, National Nematological Research Centre (NNRC), University of Karachi,, 1989-07-07)

Identification of Meloidogyne species infecting cowpea roots under mixed cropping systems in Nigeria showed that M. javanica was the predominant species in the savannah zone, and M. incognita races 1 and 2 were the dominant ...
SCREENING OF COWPEA (VIGNA UNGUICULATA) VARIETIES AGAINST ROOT-KNOT NEMATODE (MELOIDOGYNE INCOGNITA)

KHAN, TABREIZ AHMAD; SYED ISRAR HUSSAIN (Karachi, National Nematological Research Centre (NNRC), University of Karachi,, 1989-07-05)

Out of 20 cowpea varieties, 16 (Pusa Dophasli, Russian Giant, S-488, RC-2, RC-8, RC-48, EC4213A, EC-4874, EC-99573, EC-101418, IC-RG, IC-200, IC-238, IC-244 and IC-393) were highly susceptible, 3 (CO-4, EC-55171, FGR-450) ...

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