Pollen morphology of the family Flacourtiaceae has been examined from Pakistan by light and scanning electron microscope. Pollen grains are generally radially symmetrical, isopolar, tricolporate, zono...
32(1): 1-3,2000
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Pollen morphology of Galanthus e/wesii Hooker (Amaryllidaceae) was examined by light, scanning and transmission electron microscopy. It was compared with that of members of Galanthus ikariae Baker and...
32(1): 5-6,2000 -
cp DNA variations were examined in 16 species of 7 genera of the tribe Polygonatae for 50 probe-enzyme combinations to study phylogenetic relationship among genera and species. The shared fragments we...
32(1): 7-14,2000 -
FURTHER INVESTIGATIONS ON THE RED ALGA MELANOTHAMNUS AFAQHUSAINII (CERAMIALES) FROM THE COAST OF PAKISTAN
08-04-11
AFAQ-HUSAIN S, SHAMEEL M...
32(1): 15-26,2000 -
Ten species of Discomycetes viz., Bulgaria inquinans Fr. , Geopyxis alpina Fr. , Helvella atra Holmskj ex Fr., H. cupuliformis Dissing & Nanuf., H. elastica Bull. ex St. Amnas, H. villosa (Hedw. ex Kz...
32(1): 27-34,2000 -
A new species of Sphaeropsis karachiensis from Salvadora oleoides is described, illustrated and compared with allied taxa....
32(1): 35-39,2000 -
A new species of Sphaeropsis karachiensis from Salvadora oleoides is described, illustrated and compared with allied taxa....
32(1): 35-39,2000 -
Anthracnose disease of betelvine caused by Colletotrichum capsici was more frequently detected in Karachi as compared to Thatta and Hub regions of Pakistan. Colletotrichum gloeosporioides was isolated...
32(1): 41-44,2000 -
SHAUKAT HUSSAIN*., TAKAO TSUKIBOSHI AND TSUTOMU UEMATSU
QUICK DETECTION OF ASCOCHYTA LENTIS FROM LENTIL SEEDS USING POLYMERASE CHAIN REACTION (PCR) BASED TECHNIQUES
Two Polymerase Chain Reaction (PCR) specific primers, ASCO1 and ASCO2 were developed for the detection of Ascochyta lentis from infected lentil seeds. PCR amplification with primers ASCOI and ASCO2 re...
32(1): 45-56,2000 -
FASIHUDDIN AHMED ANSARI, MUHAMMAD TAUSEEFUR REHMAN, NAYYAR JAHAN AND HAJRA KHATOON
TRANSFER AND BEHAVIOUR OF SOME R PLASMIDS IN PLANT ASSOCIATED BACTERIA
Eleven R plasmids isolated from enteric bacteria were studied for their transfer and stability in plant associated bacteria to use them as vehicles for In vivo genetic engineering. The bacteria of pla...
32(1): 57-64,2000 -
ABDUL RAZAQUE SOOMRO
ASSESSMENT OF USEFUL HETEROSIS IN GLANDLESS GOSSYPIUM HIRSUTUM COTTON STRAINS THROUGH THEIR PERFORMANCE IN HYBRID COMBINATION
Field studies were conducted in 1997 at Central Cotton Research Institute, Sakrand to evaluate useful heterosis in seven hybrids derived from glandless cotton varieties crossed with local advance stra...
32(1): 65-68,2000 -
NIAZ AHMAD KHAN, AFSARI SHARIF*, ABDUL GHAFOOR**, MUHAMMAD ASLAM** AND MUHAMMAD ASHRAF**
GENETIC IMPROVEMENT AND CORRELATION IN CORN
Four population of maize drived from a broad based population CIMMYT 31 on the basis of silking and black layer formation after four breeding cycle were evaluated for 10 quantitative characters. Signi...
32(1): 69-75,2000 -
MUHAMMAD ASLAM JAVED, ABDULLAH KHATRI, IMTIAZ AHMED KHAN, MAQBOOL AHMAD, MUHAMMAD AQUIL SIDDIQUI AND ABDUL GHAFOOR ARAIN
UTILIZATION OF GAMMA IRRADIATION FOR THE GENETIC IMPROVEMENT OF ORIENTAL MUSTARD (BRASSICA JUNCEA COSS.)
Homogeneous seeds of Oriental mustard cv. Agati Sarhein (Brassica juncea Coss.) were treated with different doses of gamma rays (750 to 1250 Gy) to induced genetic variability for the selection of gen...
32(1): 77-83,2000 -
M. A. SIAL, M. A. ARAIN AND M. AHMAD
GENOTYPE X ENVIRONMENT INTERACTION ON BREAD WHEAT GROWN OVER MULTIPLE SITES AND YEARS IN PAKISTAN
The stability for yield performance and genotype x environment (GxE) interaction was studied in 12 wheat genotypes grown at 13 contrasting sites (12 in Sindh and one in NWFP) over two years. The combi...
32(1): 85-91,2000 -
MUHAMMAD ANWAR ARAIN, MUBARIK AHMED AND MUZAFFAR A. KHAN*
SOME PHYSICO-CHEMICAL CHARACTERISTICS OF SOIL IN SUGARCANE CULTIVATED. AREAS' OF NAWABSHAH, SINDH, PAKISTAN
A declining trenld in per hectare yield of sugarcane in Nawahshah is being observed since 1992. Soil samples collected from Nawabshah, Padedan and Sakrand when analysed for soil properties and some ma...
32(1): 93-100,2000 -
IMTIAZ A. KHAN, ABDULLAH KHATRI, M. ASLAM JAVED, SHAMIM H. SIDDIQUI, MAQBOOL AHMAD,
CANE AND SUGAR YIELD POTENTIAL OF SUGARCANE LINE AEC81-8415
NAZIR A. DAHAR, M.H. KHANZADA AND RAZIULLAH KHAN...
32(1): 101-104,2000 -
ARSALA MANSOOR, MUDASSIR I. ZAIDI* AND M.A.K. MALGHANI**
ISOLATION OF BIOACTIVE ALKALOIDS FROM GENTIANA OLIVIERI AND ITS NON-TOXIC EFFECT
From the chloroformlic extract of Gentiana olivieri plant, two alkaloids gentianine and gentianadine were isolated and their structures established on the basis of spectral data and by comparison with...
32(1): 105-109,2000 -
SHABNUM SHABBIR AND M. ISHAQ KHAN
REVERSAL OF ABA-INDUCED INHIBITION OF LETTUCE SEED GERMINATION BY HOMOEOPATHIC REMEDIES
Exogenous and endogenous abscisic acid (ABA) play a preventive role in the germination of seeds (Bewley & Black...
32(1): 111-114,2000 -
MOHAMMAD ASHRAF*, FAIZ-UL-HASSAN NASIM** AND NASIM AKHTAR
CHANGES IN ELECTRICAL CONDUCTANCE OF LEACHATES FROM WHEAT SEEDS PRETREATED IN WATER AND SODIUM CHLORIDE
Wheat seeds of two different cultivars viz., Inqalab and Pasban, pretreated in water for 2, 6...
32(1): 115-119,2000 -
H. EBRAHlMZADEH, MANSOOR SEYYEDNEJAD AND ALIREZA TALAEE*
CARBOHYDRATE CHANGES IN OLIVE DURING FRUIT RIPENING
Changes in carbohydrate content in olive during fruit ripening in on and off years showed that contents of fruit soluble sugars during fruit development increased up to 90 days after fruit set and the...
32(1): 121-129,2000 -
H. EBRAHlMZADEH, V. NIKNAM AND A.A. MAASSOUMI*
MUCILAGE CONTENT AND ITS SUGAR COMPOSITION IN ASTRAGALUS SPECIES FROM IRAN
Mucilage content and its sugar composition in leaflets of 15 species of Astragalus from Iran were examined. The mucilage content of different species varied from 3.44 to 23.56% dry weight. Mucilage co...
32(1): 131-140,2000 -
H. EBRAHlMZADEH, T. RADJABIAN AND R. KARAMIAN
IN VITRO PRODUCTION OF FLORAL BUDS AND STIGMA-LIKE STRUCTURES ON FLORAL ORGANS OF CROCUS SATIVUS L.
Floral parts of Crocus sativus L., were cultured on MS medium supplemented with various concentrations of kinetin and naphthalene acetic acid. Excised explants from style, perianth, stamen filament an...
32(1): 141-150,2000 -
IRFAN AZIZ AND M. AJMAL KHAN
PHYSIOLOGICAL ADAPTATIONS OF AVICENNIA MARINA TO SEAWATER CONCENTRATIONS IN THE INDUS DELTA, PAKISTAN
Avicennia marina is the most dominant species among mangroves found in the lndus delta, Pakistan, alongwith a few populations of Aegiceras corniculata, Rhizophora mucronata and Ceriops tagal. Propagul...
32(1): 151-169,2000 -
D. KHAN, M. FAHEEMUDDIN, S.S. SHAUKAT* AND M.M. ALAM
SEASONAL VARIATION IN STRUCTURE, COMPOSITION, PHYTOMASS, AND NET PRIMARY PRODUCTIVITY IN A LASIURUS SCINDICUS HENR., AND CENCHRUS SETIGER US VAHL., DOMINATED DRY SANDY DESERT SITE OF KARACHI
Variation in composition, strucrure, plant biomass and net primary productivity was analyzed in a grass dominated sandy desert community of Lasiurus scindicus Henr., and Cenchrus setigerus Vahl., situ...
32(1): 171-210,2000 -
S. SHAHID SHAUKAT AND NAZIA BURHAN
FECUNDITY, SEED CHARACTERISTICS AND FACTORS REGULATING GERMINATION OF RHYNCHOSIA MINIMA (L.) D.C.
Fecundity of three Rhynchosia minima populations was compared. The old-field population exhibited highest fecundity as well as average reproductive output weight, followed by the population existing i...
32(1): 211-226,2000 -
Gawatar Bay located at Pakistan-Iranian border facing Gulf of Oman serves as a connection between mangroves of the Gulf area and N.E. Arabian Sea of Pakistan. It forms the westernmost part of the coas...
32(1): 227-234,2000