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Morphological characterisation and the evaluation of growth and development of cultivated Primula veris L. plants were done according to different origin of seeds which the cultivated populations were started from and to two types of row spacing applied in the experimental plots. For each plant the number of leaves per plant and the rosette diameter were determined. At the flowering phase the number of scapes per plant, as well as the numbers of buds, flowers and fruits per plant and per scape were determined. The level of saponin content, converted to primulic acid, in rhizomes and roots of cowslip plants from natural and cultivated populations was assessed by means of the densytometric method. The growth and development of cowslip plants under cultivation conditions were more intensive at the plant spacing of 40 x 30, whereas fewer leaves dried on plants at the spacing of 30 x 15. The number of leaves and the diameter of leaf rosettes of the studied plants had a significant influence on the number of scapes per plant as well as on the number of flowers and fruits per plant. The saponin content in the underground organs of cowslip plants increased by 0.8-4.0% after transferring plants from natural habitats to cultivation conditions.
This paper describes the fruiting phenology and avian frugivory of Streblus asper (Moraceae) in a mixed dry deciduous forest, Anaikatty hills, Western Ghats. Fruiting occurred during April-June. Nine species of birds were found to feed on the ripe fruits of this species. Bulbuls (3 species) belonging to Pycnonotidae, followed by two species of Myna (Sturnidae) made majority of the feeding visits and appear to be the major seed dispersers of this species.
The experiment was carried out in a three unheated plastic tunnels in 19982000. The aim of this study was to estimate the effects of flower' s heterostyly and two methods of flower pollination (self-pollination and using bumble-bee) as well as flower hormonization on the flowering and fruiting of three varieties of aubergine 'Black Beauty', 'Solara F1 and 'Epic F1" The analysis of results showed that the "eggplants formed more flowers in object with self-pollination and flower hormonization than those pollinated by bumble-bee. Regardless of the pollination way and flower hormonization, eggplants formed the highest number of flowers with long pistil and much less - with medium and short pistil. It was shown that the tendency to formation the flowers with particular type of pistil is the variety trait of eggplants. The highest number of flowers with long pistil was observed in varieties 'Solara F1' and Epic F1, and those with medium pistil - in 'Black Beauty' variety. Heterostyly phenomenon occurring in eggplant' s flowers affected the plant's fruiting. The most fruits were set from flowers with long pistils than from those with 'um and short ones. Fruits formed from long pistil flowers were characterized with significantly greater mean weight and size, than those formed from medium and short pistil ones. No significant influence of pollination method on eggplant fruit quality was ,found in three years of study. Fruits achieved due to three pollination methods were characterized with similar mean weight and diameter. Fruits with significantly larger length were achieved from flowers pollinated by bumble-bees than from self pollinated ones.
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