Chaudhary, Ms. Gulshan , Dantu, Dr. Prem Kumar .
Reproductive biology of Boerhaavia diffusa (L)- An over-exploited medicinal plant.
Boerhaavia diffusa (Nyctagenaceae) is a common perennial, medicinal herb growing through India. In Ayurveda it is known as Punarnava. The part used for medicinal purposes are; Root, Leaves or whole flower. It useful in biliousness, blood impurity, anemia and inflammation. Reproductive biology of Boerhaavia diffusa throws up certain very interesting aspects about plants response to changes in abiotic conditions. The flower attains a peak during the month of August, September and decrease in the coming months of October and November. It could be because of (i) Fresh flush shoot produced during rainy seasons, (ii) High ambient temperature of 35-40. (iii) High humidity (iv) decreasing temperatures during subsequent months. Anthesis of flowers occurs early in the morning around 4 - 5 am. When the temperatures are cool. However, it gets delayed when there is generally drop in temperature. It is a self- pollinated plant. This is evidenced by the facts that (i) the number of pollen grains produced less, (ii) flower lack any odour, and (iii) bagging experiments of buds shows complete fruit formation. The most important pollinator is an ant, as the anther dehisced ant cuts stamen and pistil of flowers. The stigmatic surface has a numerous papilla while the stamens have unequal anther lobes. The wall of anther is so thick that the arrangement of pollen grains can also seems in steriozoom microscope.
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1 - Dayalbagh Educational Institute, Dayalbagh, Agra, Botany, Ms. Gulshan Chaudhary, Research Scholar, Botany Department, Faculty of Science, Dayalbagh Educational Institute, Dayalbagh, Agra. India, Agra, Uttar Pradesh, 282005, India
2 - Dayalbagh Educational Institute (Deemed University), Dayalbagh, Agra, Botany, Dr. Prem Kumar Dantu, Reader, Botany Department, Faculty of Science, Dayalbagh Educational Institute, Dayalbagh, Agra. India, Agra, Uttar Pradesh, 282005, India
Presentation Type: Poster:Posters for Topics
Location: Ball Room & Party Room/SUB
Date: Monday, July 28th, 2008
Time: 12:30 PM