摘要：In vitro, germination is the most commonly used technique in pollen physiology. This provides a simple experiment method to study the pollen germination and pollen tube growth, in the endogenous as well as exogenous conditions. In vivo conditions (endogenous) can also apply to the study of pollen system. In the present investigation, the pollen germination of Spathodia companulata P. Beauv was studied in the different parts of the carpel viz., style, stigma, ovary, style-stigma, style-ovary and whole gynoecium. Spathodia companulata P. Beauv is planted for reforestation schemes, for soil conservation. In India, it is seen that there is a rare formation of fruit and seeds in this plant. Thus for the study of the growth of the plant for cultivation purposes, the growth of the pollen tube was studied which could be one of the reason for the less fruit and seed formation. Pollen tubes were found to be stimulated by those components present in the different selected parts of the carpel.
关键词：In vitro;in vivo like Condition;Pollen Germination;Pollen System Female Reproductive Parts (FRP)
