Comparision of in vivo and in vitro translation of the anemia phyllitidis poly (A)+ RNA during spermatogenesis
ABSTRACT:
Ribonucleic acid was extracted from 10 days old reproductive prothalli of the fern anemia phyllitidis . polyadenyiated RNA was isolated by using poly (U)- sepharose chromatography and its composition was studied by translating the poly (A)+ RNA in vitro in rabbit reticulocyte lysate. Electrophoretic analysis of the in vitro translation products and of proteins synthesized in vitro gave many common components , but there were also distinct quantitative and qualitative differences in the protein composition of the products of the two fractions . the in vitro synthesized proteins formed a heterogenous population , ranging in molecular weight from 10,000 to 72,000 , while those from in vitro ranged from 10,000 to over 120,000 daltons.

Flexibility in cyanogenic phenotype of lotus corniculatus L. in response to low flucting temperatures
ABSTRACT:
Synthesis of linamarase by approximately half the _ - progeny of the cross A/13 x C/27 was observed by exposing them to winter conditions in the field or in controlled environments suggesting that there was temperature-sensitive regulation of enzyme biosynthesis in these progeny , the appearance of linamarase-producing progeny in

Effect of abscisic acid on the exudation process in excised roots of maize, millet and sorghum.
ABSTRACT:
The effect of abscisic acid (ABA) on the exudation process in excised roots of maize 9zea mays L.) pearl millet ( pennisetum typhoideum rich ) and sorghum ( sorghum vulgae pers ) was investigated . ABA supplied to the growth as well as the bathing media stimulated volume flow (fv) and to a lesser extent the potassium flux (JK) from all three species. The major factor causing stimulation was an ABA induced increase in the hydraulic conductivity of the root (Lp).

Level of abscisic acid and gibberellic acid
ABSTRACT:
ABA and GA like compounds were studied in germinated and non- germinated cotton seeds (gossyplum

Wheat callus culture: induction and growth of callus derived from caryopses
ABSTRACT:
A method for rapid callus induction and subculturing is described . using the direct method, a number of calli from one single caryopses of wheat can be obtained for rapid multiplication and building up of stocks for various studies.

Salt tolerance studies on IPIL IPIL (leucaena leucocephela L.) CV. K-8
ABSTRACT:
Ipil ipil (leucaena leucocephela L.) CV. K-8 has been studied for its salt tolerance in pots containing gravel soaked in nutrient solution maintained at electrical conductivity (EC) of 3,5, 10 ,15 and 20 mScm-1. Increase in salt contents adversely affected germination and plant growth . fifty percent reduction in plant growth occurred at EC of 12.4 mScm-1.

Studies on carbohydrate and amino acid composition of thespesia
ABSTRACT:
Amino acids and carbohydrates present in the seeds of thespesia populnea and T. populneoides were studied. The two species were found to have marked differences in amino

Chemical composition of wood of some eucalyptus species growing in Pakistan
ABSTRACT:
Holocellulose , alphacellulose and lignin, three major cell wall components, of severe eucalyptus species viz, E. camaldulensis ehnh , E. clurtodora hook, E. maculate hook, E.mannifera mudia. E. melanophloia, F. muell , E. microtheca , F. muell, and E. tereticornis Sm, were investigated from extractive-five wood of trunks and branches . amount of holocellulose ranged between 67.80- 77.93% in trunkwood and 67.22- 76.19% in branch-wood , alphacellulose 40.9-47.1% im trunkwood and 36.25-43.84% in branch wood and lignin 22.02-32.28 % in trunkwood and 23.45-32.77 % in branchwood. There was not much variation in the amount of these polysaccharides among the species investigated.

Effect of gamma rays on growth
ABSTRACT:
pennisetum americanum cv . Awn selected , ex-bornu , japan bajra, and

Radiation induced chlorophyll mutations in rice
ABSTRACT:
Air dried grains of four local varieties of rice were treated with gamma-rays and fast neutrons for determining their mutagenic effectiveness through the occurrence of chlorophyll mutations. Fast neutrons were more effective in inclyding chlorophyll mutations and the rice variety

Induced somatic mutation in mango , mangifera indica L. cv. Langra
ABSTRACT:
Dormant buds of mango (mangifera indica L. cv. Langra ) exposed to acute gamma-irradiation dosages of 1.0, 2.0, 3.0,4.0, 5.0 and 6.0 kiloroentgens (KR), were grafted on to one-year-old seedling stock. Dosages of 2.0 and 3.0 KR were found satisfactory for the purpose , as measued by bud lethality and scion growth. A bud graft from 3.0 KR bore fruits of excellent quantity . compared with the control, the fruits were heavier , largere and had more creamish- yellow pulp. None of the other morphological changes expressed by the mutant fruits , observed over three fruiting seasons, were disadvantageous . the tree habit is being further investigated before the mutant can be considered for release as an iproved cultivar.

Autumn rooting as influenced by geometry of planting and residual effect of
ABSTRACT:
Studies conducted on first ratoon of autumn crop planted in different geometrical patterns and intercropped with berseem revealed that planting sugarcane in 60 x 60 cm

Implication of pollen surface pattern for species and generic-level classification in
ABSTRACT:
Much parallelism in the gross characters of pollen of the family proteaceae was found and many genera with large number of species were not pollen-morphologically homogeneous. Such genera often lack

Studies on the pollen morphology of the genus heliotropium L. from Pakistan
ABSTRACT:
Pollen grains of 20 species of the genus heliotropium L. rom Pakistan were studied. The genus helioptropium is eurypalynous and shows variation in size ranging from 12-39 um in equatorial diameter and 20-48 um in polar axis and apertures being 6-10 heterocolpate.

Anomaly in pollen apertures of coldenia procumbens (boraginaceae)
ABSTRACT:
Coldenia procumbers produces 6- heterocolpate (3-colporate , 3- colpate) pollen grains instead of 3- porate or 3- brevicolporate previously describd.

Seed structure in relation to the taxonomy of the hibisceae (gossypium, lebronnecia and thespesia)
ABSTRACT:
The general morphology and structure of the seeds of 7 genera and 8 species of hibisceae have been studied. The paper discusses the relevance of seed structure to the tribal divisions of the family. In particular, the study has provided strong evidence for the inclusion of gossypium and certain other genera in the tribe gossypieae.

Inflorescence in dampiera species (family goodeniaceae)
ABSTRACT:
The Inflorescence of the dampiera R. Br.( goodeniaceae) is basically a panicle in the sense of troll and carolin . they are monopodial and monotellic on the main nflorescence , the partial nflorescences are variable ( mono or polytellic).

A new species of viola from pakistan
ABSTRACT:
Ane species of viola viz, V. makranica omer and qaiser from Pakistan is described.

Studies on bangiophyceae ( rhodophyta ) from the coast of Karachi.
ABSTRACT:
The present study records the seaweeds belonging to bangiophyceae (rhodophyta ) collected during 1974-84 from the coast of Karachi and the adjacent areas in Pakistan . it treats a taxanomic descriptipn and ecological notes of 7 species including 6 new records from the coast of Pakistan , embracing 3 species belonging to porphyridiates, 2 species to Erythropeltidales and 2 to bangiales, order rhodochaetales was found to be absent. Bangia fuscopurpurea (Dillw)

Observations on nodulation and nitrogen fixation in tribulus terrestris linn. Under field conditions.
ABSTRACT:

Reaction of potato cultivars to early blight caused by alternaria solani (ELL. & MART.) JONES AND GROUT
ABSTRACT:
Twelve potato cultivars were screened against early blight of potato after artificial inocubation in the field. Cv bintje showed maximum infection (94.5%) with minimum infection in redbad (47.8%) . Cv redbad was resistant ; multa , Baraka, desiree, spartaan, estima , prima, atom alu and vekaro moderately resistant ; Manna, bintje and Emergo moderately susceptible.

Addition to the fungal flora of pakistann cotton
ABSTRACT:

A report on web blight of mungbean in pakistan
ABSTRACT: