Teak fruits were experimentally graded by weight and
graded according to size This gave a total 35 weight-cum-size
grades of fruits The germinative and the average seedling production
capacity of the fruits of each grade were tested. It was found that
the results were influenced by the way the data were arranged and
produced. The weight-cum-size arrangement showed confused, unexpected
and unnatural trends which were difficult to explain but the
size-cum-weight arrangement showed a linear relationship between size
of the fruit and the number of seeds which was according to expectation
and in conformity with the results reported earlier It has, therefore,
been concluded that size of the fruit is primary and the weight is
only secondary in determining the quality of Teak fruits. Grading of
Teak fruits by combining size and weight can give fruit lots upto
50-75 percent germinability and average number of 1.00-2 50 seedlings
per fruit.

Excepting bamboo and sungrass, various grass species growing
in the forest lands of Chittagong, Chittagong Hill Tracts and Sylhet
districts of Bangladesh, at present, have practically no use. Five
grass species, namely, Panicum, antidetale, Retz., Themeda arundinacea,
Ridley., Saccharum spontaneum Linn., Thysanolaena maxima, O, Ktze, and
Imperata arundinacea, Cyr., which are available in the area in appreciable
quantities, have been pulped by steaming and soda processes for the
manufacture of insulation boards in equivalent mixtures as well as in
the proportion of their availability in the forests. The pulps obtained
by the steaming process were free-draining but rather dark in colour.
Soda pulps were lighter in colour but comparatively slow-draining.
Yield was high in both the processes.
Rigid structural insulation boards were made both by press-drying
in a hot hydraulic press at low pressure and by cold pressing the
mats and then drying in a force-draft oven. The boards had very
good strength but moderate heat insulating properties, They compared
favourably with the imported ones so far as the moisture resistance
properties were concerned.

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.