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 and time of flowering In pineapple can be improved by treating the plants with hormones. The most obvious effect has been found to be enhanced flowering both in terms of time and quantity.  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.