Studies on in Vitro Pollen Germination of Lawsonia inermis Linn.

摘要

The present investigation reveals the effect of sucrose and boric acid on in vitro pollen germination of a medicinal as well as dye yielding important plant Lawsonia inermis Linn. belonging to the family Lythraceae. It flowers almost throughout the year with a peak during June to August. Flowers open in the early morning (04.00 hrs.-06.00 hrs.) after which anther dehiscence take place. The pollen grains are 3- colporate. The maximum 92% pollen germination along with 1144 ?m long pollen tube developed in 15% sucrose solution supplemented with 100 ppm boric acid. Pollen grains which were collected in the morning (06.00 hrs.- 7.00 hrs.) showed best results.