It has been found that the nature
pineapple can be improved by treating
The most obvious effect
both in terms of time and quantity.
for canneries. Moreover, fruits can be
obtained all the year round by artificial
flower induction and advantage taken of
the higher prices for ”offseason” fruits
Tremendous works have been done in
this line in different countries specially
in Australia, Hawaii and Puerto Rico and
some in Bangladesh and a few important
of them have been reviewed in this paper
Under natural conditions, a percentage
of pineapple plants do not flower at the
normal time and, in addition, flowering
may spread over several weeks. But with
the application of hormone the plants can
be forced to flower within a shorter
period ensuring uniform cropping, This is
very important when the fruit is grown
and time of flowering In the plants with hormones
has been found to be enhanced flowering The response of the plants to
hormone treatment varied according to the substances used and their
concentration* Other effects of hormone treatment have been found to
be increase in size and weight of the fruit.

Bangladesh is a young country but its
forestry traditions date back to the midnineteenth
century. According to the Government
two year (1978-80) approach plan,
the area of state owned forest managed by
the Forest Department is 1.32 million ha
(3.25 million acres). There is also 0.906-
million ha (2.4 million acres) of unstocked
hill forest under the administration of the
district authority of Chittagong Hill Tracts,
most of which is only usable for raising
forest crops. The major objectives of the
approach plan, and indeed of plans for future
years, are the accelerated exploitation coupled
with the establishment of plantations.

Bending timber, as a means of producing
curved parts in fabrication, has several
advantages over other methods of manufacture.
A variety of bends can conveniently
be made from solid wood by hand bending
method. It is often found suitable for the
production of such articles as various
furniture parts, country boats, vehicle parts,
sports goods and novelty items. Although
the modern trend is oriented towards the
manufacture of wooden bent parts from
glued laminated timber, extensive studies have
been made in many countries on bending
of solid timber (Anon. 1948, Anon. 1959,
Anon. 1967, Peck 1943, Peck 1950, Martin
and Wangaard 1950, Rehman et al 1956).
Solid woods have been classified by them
according to their bending characteristics.
No such information in respect of the

Gamar is a fast growing hardwood
species native to Bangladesh, India, Burma
and other parts of South East Asia. It
grows in a variety of sites but is at its
best in well drained soil. Gamar is already
a potentially important plantation species
in Nigeria, Sierra Leone, Malaysia and
Brazil (Gibson 1975). It produces white
durable timber with good working properties
and has good pulping characteristics. In Bangladesh, since 1974, Gamar has
been planted on a 14 years’ rotation in
about 1.4 thousand hectares in the Pulp
Wood Plantation Division, Kaptai. The
future plan is to increase the plantation
over a larger area. Its primary object is

Bangladesh is deficient in vegetable
oils. Indigenous sources of vegetable oils
are the agricultural oil crops. Soyabean, coconut,
sunflower and other vegetable oils are
imported to supplement the quantity
produced in the country. Because of acute
shortage of agricultural land, the possibility of increasing oil production by bringing
more agricultural land under cultivation
of oil crops is remote

Silicon and carbon both belonging to
the fourth group in the Periodic Table
show similar chemical reactivity in many
respects. Both are able to form a series of
covalently bonded compounds, the bonds
being directed towards the corners of a
regular tetrahedron. DIMENSIONAL STABILIZATION OF WOOD
BY CHLOROSILANATION Silanes, corresponding to alkanes in
organic chemistry, have an empirical formula, Sin H2n-|-2O Each of the hydrogens
in the silane molecule may be substitute dby an electrophilic group, e. g., halogen or
by methyl groups. The properties of the organochlorosilanes are dependent on the

Seeds of Ipil-Ipil imported from the Philippines were experimentally
tried at Charaljani (Tangail) and Keochia (Chittagong) to compare
the growth performance of the cultivars.

Survival percentages of the three cultivars, K8, K27 and K67 at
Charaljani were 96, 94 and 93 respectively, whereas at Keochia they were
89, 75 and 80 respectively. Height growth at Charaljani was almost
double that at Keochia. The height growth after 140 days at Charaljani
was 63.5 cm, 35.5 cm and 38 cm for K8, K27 and K67
respectively. The above-ground biomass (green weight basis) in 9
month old trees was 11.34 Kg for K8, 9.97 Kg for K27 and 9.0 Kg. for
K67 at Charaljani. These figures were better than those at Keochia.
The plots at Keochia were, therefore, abandoned later.

The flowering nature of Bambusa balcooa Roxb. has been described.
It was observed that it flowered giegariously in the clump
but sporadically over the area. The clump died after flowering without
setting any seed. The flowering cycle has been speculated to be
40 ±5 years.