Seasonal variation and potential output of egg liberation in the fucalean species Hormosira banksii (Turner). Decaisne was investigated. Eggs were produced throughout the year but the reproductive cap...
23(2): 145-151,1991
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Pediastrum bareilliansis sp. nov., collected from Dhopa pond, Bareilly District, U.P India is described....
23(2): 152-154,1991 -
Waste water samples of Korangi industrial and SITE areas showed the occurrence of 43 algal species belonging to 39 genera and 4 divisions, in which Mycrocystis flos-aquae, Phormidium purpurascens and ...
23(2): 155-159,1991 -
Nusrat jamil and K.W. buck
Effect of vegetative incomtibility on double stranded RNA and mycovirus transmission In gaeumannomyces graminis var. tritici
The vegetative incompatibility of gaeumannomyces graminis ( wheat plant pathlogen) was examined by physical interacrion of field isolates on potato dextrose agar. Due to multi-alaelic system 31 iso...
23(2): 160-164,1991 -
Seed samples of coriander from 15 countries were analysed for seed-borne mycoflora . of the 88 sasmples examined , 14 genera and 24 species of fungi were...
23(2): 165-172,1991 -
Using blotter , agar plate and deep-freezing methods as recommended by ISTA , the seedborne mycoflora of sunflower was shown to consist of 20 different genera 36 species of fungi . more fungi were i...
23(2): 173-178,1991 -
Seed treatment with microbial antagonisis viz., trichoderma harzianum , gilocladium virens , paecilomyces lilacinus , rhizobium meliloti and Streptomyces sp., completely controlled infection of tom...
23(2): 179-182,1991 -
Farzana ali and A. ghaffar
Effect of seed treatment with biological antagonisis on rhizosphere mycoflora and root infecting fungi of soybean
Treatment of soyean seeds with paecilomyces lilacinus , trichoderma harzianum , glicladium virens , bacilhus subtilis , rhizobium metolic and Streptomyces sp., showed significant reduction in infect...
23(2): 183-188,1991 -
I. AHMAD , K. BURNEY AND M. ASLAM
Analysis of resistance I sunflower to charcoal rot pathogen macrophomina phaseolina
Four sunflower hybrids viz., NK-212 , Cargill- 204 , SF-100 and hysun-30 were tested for disease resitance against 26 isolates of macrophomina phaseolina collected from sunflower growing areas in ...
23(2): 189-193,1991 -
Infections of macrophomina phaseolina on 30 day old mustard 9 brassica juncea ) seedling was inhibited by brodyrhizobium japonicum , trichoderma harzianum , glicladium virens and paecilomyces biloc...
23(2): 194-198,1991 -
The adaptive repair activity has been demonstrated in cells of straphylococcus aureus, reactivation of alkylated phage p68 has been shown to be dependent upon the host cell coded adaptive repair e...
23(2): 199-202,1991 -
Nitschika ter-kuile , qamar jahan, N. hashmi, M. aslam ,, A.A. vahidy and A. mujeeb-kazi
IB/IR translocation wheat ciltivars detected by A-page electrophoresis and C- banding in the 1990 national uniform wheat yield trial in Pakistan
Bread wheat (triticum aestivum L.) yield trial nurseries comprised of a large proportion of lines with the IB/IR translocation that has associated with it sesveral positive agronomic and pathological ...
23(2): 203-212,1991 -
Ahsan A. vahidy , F.A. durrani , qamar jahan and A. mujeeb-kazi
Production and cytogenetics of intergeneric hybrids of triricum aestivum with aegilops variabilis and AE. vavilovi
Intergeneric hybrids between triricum aestivum L., and karnal bunt ( neovossia indica) resistant accessions of two aegilops spaecies were produced in different frequencies . aegilops variabilis w...
23(2): 213-222,1991 -
S.M. ALAM AND S.S.M. NAQVI
Effect of salinity on growth and nutrient content of pearl millet grown in desert sand and gravel
Sand or gravel culture techniques were used ti study the effect of saline irrigation water on the growth and nutrient contents of pearl milles . plant height and dry matter yield significantly decr...
23(2): 223-226,1991 -
Javed iqbal , shagufta naz , sarwat nazir , faheem aftab and M.S. ahmed
Total phenolics , phenyl alanine ammonia lyase and polyphenol oxidase in in vitro calli of chick-pea
Conditions for in vitro cultures of calli from root , cotyledon and hypocotyl explants of chickpea (cicer ariethinum L. cv CM 72) in M.S. medium were established . total phenolics , phenylalanine am...
23(2): 227-235,1991 -
Basir ahmed , Muhammad tahir M. Rajput and khursheed Mustafa khan
Siderinium pitensis sp. Nov., a new species of silicified fossil dicot wood from tertiary deposits of Sindh , pakistan
Siderinium pitensis sp. Nov a new silicified stem fossil is described from tertiary rocks of dada dormation exposed near ranikot fort area , district dadu , Pakistan . the xylotomical features of t...
23(2): 236-242,1991 -
N.M. DUKC , S.Z. HUSAIN , R. JANCIC , O.GASIC , A. LOUKIS AND M.B. KHAN
Composition and variation of essential oil constiuents in three menthal ., ) labiate) species in Yugoslavia
The essential oil components piperitone , linalool, menthol , geraniol , limonene, carvone, pulegone , caryphyllene , menthone , isomenthone , meoismenthone , P. cymene , borneol , piperitnone an a t...
23(2): 243-248,1991 -
S.M. CHAGHTAI , MOHAMMAD IBRAR AND QAISER ALI
Some autecolological observations on catharanthus roseus (L.) G.DON
Germination and growth of catharanthus roseus seeds were found directly related to temperature. Scartification of seeds retarded germination and growth of seedlings . germination and growth of seeds...
23(2): 249-256,1991 -
Sultanul abedin , mohammad A. al- yahya , shaukat ali chaudhary and jaber salem mossa
Contribution to the flora of Saudi Arabia part II. A revision of the family solanaceae
The family solanaceaea in the kingdom os Saudi Arabia has been revised . it is represented by 43 taxa distributed in 11 genera (including 12 cultivated species ).. two new status viz., solanum incanu...
23(2): 257-282,1991 -
Tashmeem F. razzaki, M. ali , F. nahid , A. abbasi and Z.H. zaidi
Anti-page Mu activity and mutagenicity of extra cellular peptides of candida tropicalis
Genetic activity of peptides isolated rom cell-free culture filterate of dimorphic yeast candida tropicalis (strain CBS94) was investigated in salmonella/ microsome revesion assay . the peptides in...
23(2): 283-289,1991 -
While studying the rochelia material for the flora of Pakistan , one gathering namely Bowes lyon ,789, from chitral could not be matched entirely with any of the species found in Pakistan. The gatheri...
23(2): 290-290,1991