Online Submission



Register | Forgot password?

Recent Issues

Uploaded: 21/01/2019 Uploaded: 26/06/2018
Uploaded: 29/05/2018

Latest News
Thursday, March 30, 2017

ISI Impact Factor 0.69

Details
Year 2000 , Volume  32, Issue 2
Move your mouse curser on the title to view the abstract of the paper
S.No. Title Authors Pages Download
1
A NEW CYLINDRICAL SPECIES OF CODIUM STACKHOUSE FROM THE COAST OF KARACHI, PAKISTAN
MOHAMMED NIZAMUDDIN

A NEW CYLINDRICAL SPECIES OF CODIUM STACKHOUSE FROM THE COAST OF KARACHI, PAKISTAN
ABSTRACT:
Algal specimens collected from Hawkesbay sandy beach and Buleji rocky coast of the Arabian sea, 40-50 km from the Karachi University Campus showed the presence of a new cylindrical species of Codium which is described as Codium islamii Nizamuddin and named after Prof. Dr. A.K.M. Noorul Islam of the Department of Botany, University of Dhaka, Bangladesh for his devotion and contribution in the field of Phycology.

235-238 Download
2
ADDITIONS TO COELOMYCETES FROM PAKISTAN - CAMAROSPORIOPSIS ABBAS, SUTTON & GHAFFAR GEN. NOV ., AND C. CAPPARIDIS (AHMAD) ABBAS, SUTTON & GHAFFAR COM. NOV.
S.Q. ABBAS, B.C. SUTTON* AND A. GHAFFAR**

ADDITIONS TO COELOMYCETES FROM PAKISTAN - CAMAROSPORIOPSIS ABBAS, SUTTON & GHAFFAR GEN. NOV ., AND C. CAPPARIDIS (AHMAD) ABBAS, SUTTON & GHAFFAR COM. NOV.
ABSTRACT:
Camarosporiopsis Abbas, Sutton & Ghaffar gen. nov, and C. cuppuridis (Ahmad) Abbas, Sutton & Ghaffar com nov., on Capparis decidua, based on Camarosporiopsis capparidis Ahmad are described, illustrated and compared with related taxa.

239-246 Download
3
AN ADDITION TO SEPTORIA FROM PAKISTAN
S.Q. ABBAS, B.C. SUTTON* AND A. GHAFFAR**

AN ADDITION TO SEPTORIA FROM PAKISTAN
ABSTRACT:
Septoria salvadorae Abbas. Sutton & Ghaffar sp.nov., on Salvadora persica is described,iIllustrated and compared with related taxa.

247-250 Download
4
PATHOGENS ASSOCIATED WITH STALK ROT OF CORN IN PAKISTAN
YASMIN AHMAD, M. SIDDIQUE MIRZA AND A. GHAFFAR *

PATHOGENS ASSOCIATED WITH STALK ROT OF CORN IN PAKISTAN
ABSTRACT:
Of the 17 species of fungi, Macrophomina phaseolina, Fusarium moniliforme, Rhizoctonia solani and maize stem borer Chilo partellus, were found predominantly associated with stalk rot disease of com in different parts of Pakistan The bacterium Erwinia chrysathemi pv. zeae was found only in samples collected from Punjab and N.W.F.P areas of Pakistan.

251-253 Download
5
OPTIMIZATION OF CULTURAL CONDITIONS FOR THE PRODUCTION OF L-DOPA (L-3, 4 DIHYDROXY PHENYL ALANINE) FROM L- TYROSINE BY ASPERGILLUS ORYZAE
IKRAM-UL-HAQ, SIKANDER ALl, SHUMAILA MANZOOR AND M.A. QADEER

OPTIMIZATION OF CULTURAL CONDITIONS FOR THE PRODUCTION OF L-DOPA (L-3, 4 DIHYDROXY PHENYL ALANINE) FROM L- TYROSINE BY ASPERGILLUS ORYZAE
ABSTRACT:
The present study is concerned with the optimization of different cultural conditions for the production of L-DOPA from L-Tyrosine by surface culture technique. Of the 12 different isolates of Aspergillus oryzae tested, for production of mycelium, strain ISB-9 was found to give maximum yield of L-DOPA (0.34 mg/ml) L-DOPA production was maximum at pH 3.0 of the reaction mixture, 50oC, 50 minutes and 2.5 mg/ml, optimum temperature, time and L- Tyrosine concentration, respectively.

255-258 Download
6
VARIATION IN STEM ANATOMY OF RICE CULTIVARS
A.K.M. GOLAM SARWAR AND A.K.M. AZAD-UD-DOULA PRODHAN

VARIATION IN STEM ANATOMY OF RICE CULTIVARS
ABSTRACT:
Anatomical investigations on 8 cultivars of rice (Oryza sativa L.), four from each of the traditional (local) and modem (high yielding) cultivars, were carried out to study the variation among the cultivars. The epidermis is single layered having cuticle of varying thickness. The number of hypodermal layer is more in modem cultivars compared to traditional ones. The vascular bundles are of two types, outer (small) and inner (large), in all the cultivars except Madhabshail-boro where additional median (medium) type is present in between outer and inner bundles The number, position and arrangement of vascular bundles vary among the cultivars. The outer vascular bundles are embedded in the hypodermis and found to push outwards forming outgrowth of different shapes in all the cultivars except BR7 and BR3 where the wavy appearance in outer circumference of the stem is present. Some of the inner vascular bundles are attached or nearer to the 11 hypodermis while the rest are away from it. The hollow pith is found to be smaller in modern cultivars compared to traditional ones. The higher number of mechanical tissues (hypodermal cells and inner vascular bundles) in modern cultivars imparts resistance to lodging.

259-264 Download
7
ROLE OF MINERAL IONS IN SALT TOLERANCE OF TWO WHEAT (TRITICUM AESTlVUM L.) CULTIVARS
H. EBRAHIMZADEH, F. MEIGHANY AND *H. RAHIMIAN

ROLE OF MINERAL IONS IN SALT TOLERANCE OF TWO WHEAT (TRITICUM AESTlVUM L.) CULTIVARS
ABSTRACT:
Effects of NaCI salinity at different growth and developmental stages on ions accumulation in two wheat cultivars were studied in greenhouse conditions. Concentrations of Na + in leaves and roots of Ghods, a salt-sensitive cultivar, were more than that of Boolani, a salt-resistant cultivar. K+ and Ca2+ contents were found to be less under NaCl treatments. This loss increased with increasing salinity and was markedly higher in Ghods than in Boolani There were significant differences between the cultivars with respect to ion absorption and translocation indicating that the cultivars may give genotype dependent responses under salinity stress conditions.

265-271 Download
8
ECOLOGICAL STUDIES ON RAWDHAT SYSTEM IN SAUDI ARABIA - II. SOIL SEED BANK OF RAWDHAT KHORIM
M.N. AL-YEMENI, M.M. AL-FARRAJ AND AHMED AL-FARHAN

ECOLOGICAL STUDIES ON RAWDHAT SYSTEM IN SAUDI ARABIA - II. SOIL SEED BANK OF RAWDHAT KHORIM
ABSTRACT:
The germinable seeds in the seed bank in the uppermost two centimeter layer of the soil of Rawdhat Khorim in the Riyadh region of Central Saudi Arabia was studied using 1250 cm2 soil samples collected in winter season from three line transects. The seed bank composition was determined using germination experiment. Most of the seedlings emerged in the first three weeks. The final number of seedlings ranged from 18 to 1190/m2. The floristic composition of the emerged seedlings consisted of 56 plant species. There was a compositional difference in the emerged seedlings between sites having different soil texture. Biomass of the emerged seedlings ranged from 2.14 to 51.8 g/m2 depending on the seedling density and soil texture.

273-282 Download
9
DISSEMINATION OF SEEDS OF ERYNGIUM PANICULATUM FROM ISOLATED PLANTS. II. RELATIONSHIP BETWEEN DISTANCE OF SEED-TRAPS AND GATHERING CAPACITY
SALVADOR CHAILA, MARIA T. SOBRERO AND OLGA.B. AVILA

DISSEMINATION OF SEEDS OF ERYNGIUM PANICULATUM FROM ISOLATED PLANTS. II. RELATIONSHIP BETWEEN DISTANCE OF SEED-TRAPS AND GATHERING CAPACITY
ABSTRACT:
Eryngum paniculatum (Apiaceae-Saniculoideae) is of great importance in the north region of Argentina where it is invading abandoned fields. The studies evaluate the dispersion of the species and present spatial orientation for the collectors of seeds of this species.

283-288 Download
10
DISSEMINATION OF SEEDS OF ERYNGIUM PANICULATUM CA V. ET DOM EX DELAROCHE FROM ISOLATED PLANTS RELATIONSHIP BETWEEN SEED-FRUIT WEIGHT AND DISTANCE OF SEEDLINGS
SALVADOR CHAILA, MARIA T. SOBRERO1 AND OLGA.B. AVILA2

DISSEMINATION OF SEEDS OF ERYNGIUM PANICULATUM CA V. ET DOM EX DELAROCHE FROM ISOLATED PLANTS RELATIONSHIP BETWEEN SEED-FRUIT WEIGHT AND DISTANCE OF SEEDLINGS
ABSTRACT:
A experiment was carried out to detennine the relationship between the seed weight and the distance they fall from the mother plant when they disseminate There was an inverse relationship between the number and weight of seed and the distance from the mother plant. Greatest weight were registered between 0.25-0.40 m and there were no seeds further from the mother plant inspite of them being smalll and easy to disseminate.

289-292 Download
11
A NEW SPECIES OF COUSINIA CASS., (ASTERACEAE, SECT. CYNAROIDEAE) FROM IRAN
FARIDEH ATTAR, AHMAD GHAHREMAN AND *MOSTAFA ASSADI

A NEW SPECIES OF COUSINIA CASS., (ASTERACEAE, SECT. CYNAROIDEAE) FROM IRAN
ABSTRACT:
Cousinia mozaffariani is described as a new species from southern Iran. This species is related to Cousinia barbeyi from middle Zagros (Saverz Mountains) in Iran.

293-294 Download
12
POLLEN MORPHOLOGY OF SOME TURKISH ENDEMIC HELICHRYSUM GAERTNER SPECIES (COMPOSITAE)
N.M. PINAR AND E. OYBAK DONMEZ*

POLLEN MORPHOLOGY OF SOME TURKISH ENDEMIC HELICHRYSUM GAERTNER SPECIES (COMPOSITAE)
ABSTRACT:
Pollen morphology of 6 endemic taxa in the genus Helichrysum Gaertner (Compositae) has been investigated using light and scanning electron microscopy. The pollen grains of all the Helichrysum taxa are similar in that they are tricolporate with spines and rugulate ektexine sculpturing. They are spheroidal, prolate-spheroidal or oblate-spheroidal in shape.

295-301 Download
13
POLLEN MORPHOLOGY OF EBENUS L. (LEGUMINOSAE: SUBFAMILY PAPILIONOIDEAE) IN TURKEY
N.M. PINAR, C. VURAL* AND Z. A YTAC*

POLLEN MORPHOLOGY OF EBENUS L. (LEGUMINOSAE: SUBFAMILY PAPILIONOIDEAE) IN TURKEY
ABSTRACT:
Pollen grains of 12 species and 3 varieties of the genus Ebenus L., (Leguminosae: subfamily papilionoideae have been examined using light microscopy (LM) and scanning electron microscopy (SEM). Pollen description of each taxon has been given. Pollen grains of Ebenus L., species examined are radially symmetrical, isopolar, tricolpate, prolate rarely perprolate, Their ornamentations are reticulate. The exine structure are similar, ektexine thicker than endexine. The pollen morphology seems to be very similar to each other.

303-310 Download
14
DISTRIBUTION AND CHROMOSOME STUDIES ON SOME SPECIES OF COUSINIA CASS., (SECTION CYNAROIDEAE) FROM IRAN
SEYED MAHMOOD GHAFFARI, FARIDE ATTAR* AND AHMAD GHAHREMAN

DISTRIBUTION AND CHROMOSOME STUDIES ON SOME SPECIES OF COUSINIA CASS., (SECTION CYNAROIDEAE) FROM IRAN
ABSTRACT:
Cytological study of 8 Iranian species of Cousina section Cynaroideae (Asteraceae) was carried out. The basic chromosome number is x =12 and all of the studied plants were diploid. The western parts of Iran seems to be the center of diversity and origin of Cousinia section Cynaroideae.

311-316 Download
15
DISTRIBUTION OF TRITICUM BOEOTICUM SSP., THAOUDAR AND ITS ASSOCIATES (AEGILOPS SPP .) IN IRAN
S.M. FAKHRE TABATABAEI, *M. ATRI AND **T. RAMAK MAASSOUMI

DISTRIBUTION OF TRITICUM BOEOTICUM SSP., THAOUDAR AND ITS ASSOCIATES (AEGILOPS SPP .) IN IRAN
ABSTRACT:
The wild wheats of Iran are considered as original genetic sources that could be used for improvement of the cultivated wheat Triticum boeoticum ssp, thaoudar (syn. Triticum thaoudar) and its associates, as one of the best living collection of the wild wheats, could play a major role in this regard. The distribution of Triticum thaoudar and its associates are described.

317-322 Download
16
ESTIMATION OF SELECTION INDICES IN BRASSICA JUNCEA L. AND BRASSICA NAPUS L.
A.S. LARIK AND L.S. RAJPUT

ESTIMATION OF SELECTION INDICES IN BRASSICA JUNCEA L. AND BRASSICA NAPUS L.
ABSTRACT:
Genetic selection indices were studied for six productive traits in two varieties (S-9 and S-95) of Brassica juncea and four varieties (Canola-l,II,III and Canola standard) of B. napus. Correlation analysis indicated that seed yield/plant had strong positive association with plant height, branches/plant, siliqua/ plant, seeds/siliqua and dry matter yield/plant. Path analysis and selection indices also confirmed that all the traits contributed significantly towards seed yield/plant. The direct and indirect effects were found to be regulating the character association in all the traits. Magnitude of genetic and phenotypic variance ranged between 0.555 (seed yield/plant) to 960.63 (siliqua/plant), respectively. Heritability (b.s) showed high estimates (ranging from 97.70% to 60.24%) for all the traits, indicating the involvement of additive gene action. Dry matter yield/plant, seeds/siliqua and plant height exhibited low genetic advance irrespective of their high heritability estimates, probably due to non-additive gene (dominance and epistasis) effects. On the basis of selection indices, it is concluded that branches/plant and siliqua/plant are the most important yield components, therefore, selection based on these traits could be exploited for the improvement of yeild in present genotypes.

323-330 Download
About Journal
--------------------------------------
Author's Guideline
--------------------------------------
Submit Online
--------------------------------------
In Press Articles
--------------------------------------
Status of Manuscript
--------------------------------------
Current Impact Factor 0.75
--------------------------------------
5 Years Impact Factor 0.825
Indexing

PJB is indexed in following international databases: View all

Thomson Reuters ISI Web of Knowledge


SCOPUS

https://www.scopus.com/sourceid/19983?origin=sbrowse


AGRIS


ASCI-Database


CABI


International Scientific Indexing (ISI)


Cambridge Scientific Abstract


Chemical Abstract Services


E-Journals


ISC (Islamic World Science Citation Center)


Scientific Indexing Services


SCIMAGO


Index Copernicus (IC)


ProQuest


DOAJ


Google Scholar


Contact Us
Pakistan Journal of Botany, Botanical Garden, University of Karachi, Karachi, Pakistan

pakjbot@pakbs.org | Facebook
Hit Counter: 1165140, Today's: 447, Yesterday's: 1407, Country Wise Counter

Copyright © 2017-18 - All Rights Reserved - www.pakbs.org

history.replaceState({}, null, "/pjbot/");