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Browsing Pakistan Journal of Nematology by Issue Date

Browsing Pakistan Journal of Nematology by Issue Date

Now showing items 1-20 of 239

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,, 1988-07-01)

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 ...
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,, 1988-07-02)

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 ...
RELATIVE SUSCEPTIBILITY OF CERTAIN MEDICINAL AND AROMATIC PLANTS TO ROOT-KNOT NEMATODES

PATE, C.C.; PATEL, H.R.; PATEL, D.J.; N.A. THAKAR (Karachi, National Nematological Research Centre (NNRC), University of Karachi,, 1988-07-03)

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 ...
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,, 1988-07-04)

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. ...
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,, 1988-07-05)

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) ...
PATHOGENICITY AND SCREENING OF GROUNDNUT CULTIVARS AGAINST MELOIDOGYNE ARENARIA

D.PRASAD (Karachi, National Nematological Research Centre (NNRC), University of Karachi,, 1988-07-06)

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 ...
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,, 1988-07-07)

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 ...
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,, 1988-07-08)

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,, 1988-07-09)

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 ...
ADDITIONAL HOSTS OF ROOT-KNOT NEMATODES IN PAKISTAN

B. ZARINA; M.A. MAQBOOL (Karachi, National Nematological Research Centre (NNRC), University of Karachi,, 1988-07-10)

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.
EMBRYONIC AND POSTEMBRYONIC DEVELOPMENTAL STAGES OF HETERODERA ZEAE KOSHY ET AL., 1971 ON ZEA MAYS

F. SHAHINA; M.A. MAQBOOL (National Nematological Research Centre (NNRC), University of Karachi, 1989-01-01)

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 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 ...
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.
NEW HOST RECORDS OF ROOT-KNOT NEMATODE (MELOIDOGYNE SPP.) IN PAKISTAN

B. ZARINA; M.A. MAQBOOL (Karachi, National Nematological Research Centre (NNRC), University of Karachi,, 1989-01-12)

During a survey of cultivated ornamental plants in the nurseries, park, greenhouse and gardens in different localities of Karachi several host plants of root-knot nematode were encountered. Diseased plants showed symptoms ...
CONTROL OF STUNT NEMATODE BY BARE-ROOT DIP IN LEAF EXTRACTS OF MARGOSA AND PERSIAN LILAC

SIDDIQUI, MANSOOR A.; ALAM, MASHKOOR (National Nematological Research Centre (NNRC), University of Karachi, 1989-01-20)

Bare-root dip of cabbage and cauliflower in leaf extracts of margosa/neem and a related species Persian lilac/bakain caused significant reduction in the population build-up of Tylenchorhyncus brassicae. The population of ...
EFFECTS OF SOME ORGANIC MANURES ON NEMATODES IN TOMATO CULTIVATION

J.O. BABATOLA (National Nematological Research Centre (NNRC), University of Karachi, 1989-01-20)

Studies of the effects of poultry manure, cow dung, horse dung, fruit canning factory waste and burnt township refuse on some plant-parasitic nematodes affecting tomato (Lycoparsicon esculentum) were carried out at Ibadan. ...
IRON AND ZINC AS ACTIVATOR ELEMENTS TO OXAMYL TOXICITY AGAINST THE ROOT-KNOT NEMATODE MELOIDOGYNE INCOGNITA

A.M. KORAYEM; EL-SISI, A.G (National Nematological Research Centre (NNRC), University of Karachi, 1989-01-20)

The potential synergistic effects of both zinc and ferric sulphate on the nematicidal activity of oxamyl were evaluated in the greenhouse. Tomato seedlings inoculated with Meloidogyne incognita were used to test the fficacy ...
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 ...
EFFECT OF MELOIDOGYNE INCOGNITA ON LEGHAEMOGLOBIN, BACTEROIDS AND NITROGENASE ACTIVITY OF NODULES PRODUCED BY RHIZOBIUM SPP., ON MUNGBEAN (VIGNA RADIATA L.)

P.P.K. CHAHAL; V.P.S. CHAHAL (National Nematological Research Centre (NNRC), University of Karachi, 1989-01-20)

Meloidogyne incognita reduced the leghaemoglobin and bacteroid content of nodules thus adversely affecting the functioning of nodules of mungbean (Vigna radiate L.) cv. G.65 irrespective of initial level of inoculum. ...

Now showing items 1-20 of 239

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