Pollen morphology of the family Betulaceae from Pakistan has been examined by light and scanning electron microscope. Pollen grains are generally 3-5-porate, oblate or sub-oblate with scabrate tectum....
31(2): 243-246,1999
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Scarification of seeds of Ducrosia anethifolia (DC.) Boiff., in concentrated sulphuric acid was found most effective than boiling water or ethanol treatment to break seed dormancy. Germination percent...
31(2): 247-252,1999 -
S. SHAHID SHAUKAT, ZAMIN S. SIDDIQUI AND SEEMI AZIZ
SEED SIZE VARIATION AND ITS EFFECTS ON GERMINATION, GROWTH AND SEEDLING SURVIVAL IN ACACIA NILOTICA SUBSP. INDICA (BENTH.) BRENAN
The importance of seed size in germination, emergence, growth and survivorship was assessed. Seed weight of Acacia nilotica subsp. indica varied from 0.1104 to 0.2490 g per seed with a coefficient of ...
31(2): 253-263,1999 -
M. SHAFIQ CHAUDHRY*, MISBAHUL AIN KHAN** AND FAIZ-UL HASSAN NASIM
EFFECT OF LIGHT AND TWO ISOMERS OF NITROPHENYL INDOLE-2-CARBOXYLIC ACID ON GERMINATION OF CENCHRUS CILIARIS SEEDS
Effect of light and different concentrations of m- and p- isomers of 1-nitrophenyl indole-2-carboxylic acid (NPICA) has been investigated on the germination of Cenchrus ciliaris seeds. Light not only ...
31(2): 265-270,1999 -
LAL HUSSAIN AKHTAR, JOHN GORHAM*, MASOOD AKHTAR, MUHAMMAD SAFDAR AND MUHAMMAD ASLAM
HEAT STRESS TOLERANCE STUDIES IN CALLUS CULTURES OF GOSSYPIUM HIRSUTUML. CV. ACALA SJ2.
Heat stress tolerance was studied in cotton (Gossypium hirsutum L.). Callus cultures of two cotton cultivars viz., Coker 312 (cotyledonary-derived) and Acala SJ2 (leaf and petiole-derived) showed sign...
31(2): 271-281,1999 -
NAFEES ALTAF, JAVED IQBAL* AND MUHAMMAD SALIH AHMAD
TISSUE CULTURE OF MICROSPERMA LENTIL (LENS CULINARIS MEDIK) CV. MASOOR-85
Various combinations of plant hormones were tested for canogenesis in different explants of microsperma lentil cultivar Masoor-85. Callogenesis was observed under dark conditions. Calli could regenera...
31(2): 283-292,1999 -
FAHEEM AFTAB AND JAVED IQBAL
SOMATIC EMBRYOGENESIS IN PROTOPLAST CULTURES DERIVED FROM MESOPHYLL AND EMBRYOGENIC CALLUS OF SUGARCANE (SACCHARUM SPP. HYBRID CV. COL-54)
Protoplasts were isolated both from leaf mesophyll tissue as well as from compact globular white embryogenic callus of mesophyll origin in sugarcane (Saccharum spp. hybrid cv. COL 54). Totipotent prot...
31(2): 293-300,1999 -
SEYYED MAHMOOD GHAFFARI
CHROMOSOME STUDIES OF SOME SPECIES OF CENTAUREA SECTION ACROCENTRON (ASTERACEAE) FROM IRAN
Original chromosome observations of seven species of the genus Centaurea (Sect. Acrocentron) are reported. Of these, counts for 3 taxa viz. C. irritance 'Wagenitz., C. persica Boiss, and C. sosnovskyi...
31(2): 301-305,1999 -
SEMA HAYIRLIOGLU-AYAZ, YRJÖ VIINIKKA* OSMAN BEYAZOGLU
C-BANDED CHROMOSOMES OF FOUR VICIA L., SPECIES
The distribution of heterochromatin on the chromosomes of Vicia hybrida L. (2n= 12), V. hirsuta (L.) S. F. Gray (2n= 14). V. tetrasperma (L.) Schreb, Spic. (2n = 14) and V. sativa L. subsp. nigra (L.)...
31(2): 307-313,1999 -
HÜSEYIN INCEER, QSMAN BEYAZOGLU AND SEMA HAYIRLIOGLU-AYAZ
KARYOTYPE ANALYSIS OF SOME LILIUM L. (LILIACEAE) SPECIES FROM TURKEY
Karyotype analysis of four Lilium L (Liliaceae) species viz., L. candidum L. L. martagon L. L.ciliatum P.H. Davis and L. carniolicum subsp. ponticum. (C.Koch) Davis & Henderson distributed in North Ea...
31(2): 315-321,1999 -
NAAZAR ALl, J.C. WYNNE* AND J.P. MURPHY*
ESTIMATION OF GENETIC EFFECTS AND HERITABILITY FOR EARLY MATURITY AND AGRONOMIC TRAITS IN PEANUT (ARACHIS HYPOGAEA L.,)
Studies were carried out to detennine the inheritance and heritability of early maturity and yield traits where 2 high yielding virginia types (No. 334 and 'NC 9') were crossed with an early maturing ...
31(2): 323-335,1999 -
FEROZE AKBAR, ABDUL WAHlD*, SHAMSHAD AKHTAR*, ABID NISAR AHMAD* AND FATEH MUHAMMAD CHAUDHARY
OPTIMIZATION OF METHOD AND TIME OF NITROGEN APPLICATION FOR INCREASED NITROGEN USE EFFICIENCY AND YIELD IN MAIZE
Nitrogen application at 3 different times using 2 methods was used for increasing nitrogen use efficiency of maize in terms of above ground dry matter and grain yield. Side-drilling with 245 g N/plot ...
31(2): 337-341,1999 -
An appreciable amount of uranium was accumulated by Raphanus sp. growing on heap piles of uranium mine wastes and overburdens in the mining area. About 40 % of the plant samples contained > 5 µg U3 O...
31(2): 343-346,1999 -
SHAFQAT FAROOQ AND HINA SAYYED
ISOZYME MARKERS IN COTTON BREEDING-II: INTER AND INTRAVARIETAL VARIATION IN THE ACTIVITY OF ISOZYMES OF THE ENZYME PEROXIDASE AS AFFECTED BY AREA OF COTTON CULTIVATION
Isozyme peroxidase was studied in different varieties of cotton (Gossypium hirsutum) growing at three different locations to detect possible variation in the activity of peroxidase within a variety gr...
31(2): 347-359,1999 -
SHAFQAT FAROOQ AND HINA SAYYED
ISOZYME MARKERS IN COTTON BREEDING-III. VARIATION IN THE INTENSITY OF ISOZYMES OF ENZYME PEROXIDASE HIBITED BY DIFFERENT LOCI OF DIFFERENT COTTON VARIETIES AND THERE RELATIONSHIP WITH COTTON LEAF VIRUS DISEASE
Isozymes of the enzyme peroxidase was studied in different resistant, tolerant and susceptible varieties of cotton growing at a location known as a hot spot for cotton leaf curl virus disease. Plant m...
31(2): 361-370,1999 -
SYED AFAQ-HUSAIN AND MUSTAFA SHAMEEL*
FURTHER STUDIES ON GELIDIUM (RHODOPHYTA) FROM THE COAST OF PAKISTAN
The circumscription of Gelidium pusillum (Stackhouse) Le Jolis has been discussed and a new taxon G. pusillum var. pakistanicum Afaq-Husain et Shameel is described. The vegetative, anatomical arid rep...
31(2): 371-382,1999 -
MOHAMMED NIZAMUDDIN
AN UNUSUAL FLAT SPECIES OF CODIUM (CODIALES, CHLOROPHYTA) FROM THE COAST OF PAKISTAN
A new species. Codiurn gerloffi has been described from the coast of Pakistan, which differs from other species of the genus in being unusually flat in form....
31(2): 383-386,1999 -
RUKHSANA BAJWA, ARSHAD JAVAID AND BUSHRA HANEEF
EM AND VAM TECHNOLOGY IN PAKISTAN V: RESPONSE OF CHICKPEA (CICER ARIETINUM L.) TO CO-INOCULATION WITH EFFECTIVE MICROORGANISMS (EM) AND VAMYCORRHIZA UNDER ALLELOPATHIC STRESS
A pot experiment was conducted to study the tolerance induced by vesicular arbuscular mycorrhizal fungi (VAM) and effective microorganisms (EM) in chick pea (Cicer arietinum L.) against allelopathic s...
31(2): 387-396,1999 -
ISHRAT IZHAR, IMRAN ALl SIDDIQUI, SYED EHTESHAMUL-HAQUE AND ABDUL GHAFFAR
MULTIPLICATION OF PLANT GROWTH-PROMOTING RHIZOBACTERIA FOR USE IN THE CONTROL OF ROOT ROT DISEASE OF CROP PLANTS
Efficacy of three strains of Pseudomonas aeruginosa multiplied on wheat bran, rice husk and saw dust evaluated in the control of soil-borne root infecting fungi under screen house and field conditions...
31(2): 397-405,1999 -
Ten new species of Coniothyrium on Salvadora spp. viz., Coniothyrium pakistanicum, C. oblongatum, undulatum, C. maqsoodii, C. ismailii, C. suttonii, C. sultanii, C. sivanesanii, C. punithalingamii; C....
31(2): 407-436,1999 -
During a three year survey (1996-99) of betelvine fields in Karachi and Thatta districts of Sindh and area of Balochistan...
31(2): 437-443,1999 -
Mustard (Brassica campestris L) is an important oil seed crop of Pakistan cultiated over 3,53,900 ha giving an yield of 2,85,600 tonnes annually (Anon....
31(2): 445-446,1999 -
MUHAMMAD ASLAM, N .I. HASHMI AND ALAN. R.A. STAPLETON*
STUDIES ON THE MASHBEAN (VIGNA MUNGO) IN RAINFED AGRO-ECOSYSTEM
On a loam soil having pH of 8.0., water requirements, dry matter accumulation, yield performance, water use efficiency (WUE) and economics of mashbean (Vigna mungo) were studied during kharif 1992 and...
31(2): 447-454,1999 -
M. AKKAS ALl, A.K.M. GOLAM SARWAR AND A.K.M AZAD-UD-DOULA PRODHAN
EFFECT OF WATER STRESSES ON THE GROWTH FEATURES OF DIFFERENT MAIZE (ZEA MAYS L.) CULTIVARS
A pot experiment was conducted to study the effect of water stresses on the growth features of maize (Zea mays L.) cultivars viz., Amper pop, Bomali, Suvra, Sadaf and Sayar II. The treatments were wit...
31(2): 455-460,1999 -
RESPONSES OF GROWTH, WATER RELATION AND SOLUTE ACCUMULATION IN WHEAT GENOTYPES UNDER WATER DEFICIT
25-11-10
A.H, KHAN, S.M. h-.11JJTA4BAA ND B. KHANZADA...
31(2): 461-468,1999 -
A.W. BALOCH, A.M. SOOMRO, G. MUSTAFA, M.S. BUGIDO AND H.R. BUGIDO
MUTAGENESIS FOR REDUCED PLANT HEIGHT AND HIGH GRAIN YIELD IN JAJAI 77, AN AROMATIC RICE (ORYZA SATIVA L.) VARIETY
Ionizing radiation was successfully utilized to develop the mutant variety Jajai 77-30 with reduced plant height and high grain yield from a commercially grown aromatic variety Jajai 77. About 22 % re...
31(2): 469-474,1999 -
IMDAD ALl MAHMOOD, R.H. QURESI* AND M. ASLAM*
YIELD AND QUALITY OF DIFFERENT RICE (ORYZA SATIVA L.) VARIETIES AS AFFECTED BY SOIL SALINITY
A pot experiment was conducted using six rice varieties viz., NR-I, IR-6, NIAB-6, KS-282, Basmati 370 and Basmati-385 to determine their yield potential and quality under non-saline (1.7 dS m-1) and s...
31(2): 475-479,1999 -
Research on Plant Viral Diseases in Pakistan - Bibliography and Abstracts. 1999. Compiled by: Saif Khalid. Plant Virology Programme, National Agricultural Research Centre, Islamabad 45500, Pakistan. e...
31(2): 481-,1999