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23(1): 1-2,1991
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M. ASLAM, R.H.QURESHI N. AHMED AND M.A. KAUSAR
RELATIVE GROWTH RATE AND ION TRANSPORT IN RICE GROWN UNDER SALINE ENVIRONMENT
An experiment was conducted in solution culture with two rice cultivars of varying self-tolerance: NIAB 6 (Salt tolerant) and IR 1561 (Salt sensitive), to compare their growth rate and ion transport f...
23(1): 3-10,1991 -
S.S.M. NAQVI, SABA MUMTAZ AND S.M. ALAM
COBALT AND SILVER AS POTENT INHIBOTORS OF FLOWER ABSCISSION CAPSICUM ANNUUM L.
Aqueous sprays of Co++ and Ag+ and an auxin NAA on chilli plants made at flowering time and 15 days later reduced flower abscission and enhanced pot yields more than 50% over that of control....
23(1): 11-14,1991 -
Cold and hot water extracts from fresh and dry plant parts; natural rain leachates, litter and soil collected from underneath the grass invariably and significantly reduced the germination and early g...
23(1): 15-25,1991 -
M.I. KHAN, Z.S. SAIFY AND R.Y. HASHMI
WHEAT COLIOPTILE ELONGATION TEST FOR BIOASSAY OF HOMOEOPATHIC DRUGS
A simple, quick and highly sensitive is technique is proposed for the bioassay of homoeopathic drugs. Young wheat coleoptile segments have shown responses to the potency of centesimal dilutions of hom...
23(1): 26-32,1991 -
ABDUL HAYEE- MEMON, MUSTAFA SHAMEEL, K. USMAN GHANI, MANSOOR AHMAD AND VIQAR UDDIN AHMAD
PHYCOCHEMICAL EXAMINATION OF HYPNEA VALENTIAE (GIGARTINALES, RHODOPHYTA)
Investigation of the methanolic extract of Hypnea valentiae (Turner) Montagne, collected from Karachi, Pakistan, afforded seven sterols, a fatty acid derivative and 12 fatty acids. Study of the sterol...
23(1): 33-39,1991 -
TARIQ MAHMOOD, F AZAM AND KAUSAR A. MALIK
LARGE SCALE COMPOSTING OF KALLAR GRASS LEPTOCHLOA FUSCA (L.) KUNTH
Kallar grass, Leptochloa fucsa (L.) Kunth was composted on a large scale by windrow (open-pile) method. Changes in temperature, substrate loss, cation- exchange capacity (CEC), carbon (C) and Notrogen...
23(1): 40-47,1991 -
VINOTH THOMAS AND ASHOK KUMAR VISHWAKARMA
LIGHT MICROSCOPE OBSERVATIONS ON THE EXTRA FLORAL NECTARIES IN LEUCAENA LEUCOCEPHALA LAMK. (MIMOSACEAE)
Extra Floral Nectaries In Leucaena Leucocephala Lamk., were studied at the level of light microscope. Two non-porate, cup-shaped nectaries developed on the adaxial surface of the rachis from a group o...
23(1): 48-54,1991 -
B. AHMED, A.M. ABBASI, ASHRAF BANO AND K.M. KHAN
DUABANDOXYLON PAKISTANICUM SP. NOV., A NEW TAXON OF SONNERATIACEAE FROM RANIKOT FORT AREA
Duabandoxylon pakistanicum sp. nov., a new silicified stem is described from Tertiory deposits of Dada formation exposed near Ranikot fort area, district Dadu Sindh Pakistan. The xylotomical feature o...
23(1): 55-61,1991 -
B. AHMED, MAJID-UZ- ZAFAR KHAN, TAHIR RAJPUT AND K.M. KHAN
MANGIFEROXYLON PAKISTANICUM SP. NOV., A NEW FOSSIL SPECIES OF THE FAMILY ANACARDIACEAE FROM RANIKOT FORT AREA
Petrified fossil wood resembling modern wood of the genus Mangifera of the family Anacardiaceae is described from Ranikot fort area , Dadu Sindh, Pakistan. On the basis of xylotomical homologies, the ...
23(1): 62-69,1991 -
AKBAR ALI CHEEMA AND M. AFSAR AWAN
ANALYISIS ODF A SIX PARENT DIALLEL CROSS IN MUTANTS OF BASMATI RICE
Nature of genetic control and gene action of yield and yield components in induced mutants of Basmati rice was investigated in a six parent diallel cross (including reciprocals) involving five mutants...
23(1): 70-77,1991 -
MOINUDDIN AHMED AND ATTA MOHAMMAD SARANGEZAI
DENDROCHRONOLOGICAL APPROACH TO ESTIMATE AGE AND GROWTH RATE OF VARIOUS SPECIES FROM
Dendrochronological methods were used to determine age and growth rate of none species from various forests of Himalayan region of Pakistan. Importance of these...
23(1): 78-89,1991 -
Fifty seven plant communities were recognized in the hills of Quetta district. Forty five communities were grouped in to 8 steppe types viz., Artemisia maritima steppe: Nepeta juncea steppe: Salvia ca...
23(1): 90-114,1991 -
Vesicular-arbuscular mycorrhizae (VAM) extracted from the soil of different agroecological zones showed an average population of 1260 spores / 100 g in wheat...
23(1): 115-122,1991 -
TLC technique was used for the detection of aflatoxin in sunflower seeds. Of the 24 samples of sunflower seeds collected from different localities of Pakistan, 13 samples showed the presence of aflato...
23(1): 123-126,1991 -
Phoma multirostrata (Marhur et al.) Dorenb. Et Boerema has been reported on coriander from Pakistan. In pathogenicity tests P. multirostrata caused footrot disease in...
23(1): 127-130,1991 -
SALEEM SHAHZAD, SHAUKAT HUSSAIN, SHAHNAZ DAWAR, ABDUL GHAFFAR AND BASHIR A. MALIK
BIOLOGICAL CONTROL OF MACROPHOMINA PHASEOLINA INFECTION ON MASHBEAN (VIGNA MUNGO (L.) HEPPER)
Experiments on the biological control of Macrophomina phaseolina of mashbean roots were carried out at two different filed locations viz., Karachi and Islamabad. Infection and or colonization of mashb...
23(1): 131-134,1991 -
FARZANA ALI AND ABDUL GHAFFAR
EFFECT OF WATER STRESS ON RHIZOSPHERE MYCOFLORA AND ROOT INFECTION OF SOYBEAN
Of the 29 species of fungi isolated from the rhizosphere of 28 days old soybean seedlings. Fusarium spp. Aspergillus flavus and A. niger were the dominant species Plants subjected to water stress show...
23(1): 135-139,1991 -
Losses inflicted by leaf crinkle virus (LCV)...
23(1): 140-142,1991 -