Abstract

EFFECT OF FLOODING ON THE GROWTH (ROOT LENGTH, SHOOT LENGTH AND ROOT SHOOT RATIO) OF VIGNA ACONITIFOLIA (JACQ.) MARECHAL AND PORTULACA OLERACEA L

Buchade J. Y.* and Karadge B. A.

Abstract

The present investigation was, undertaken to study the effect of waterlogging on growth and metabolism of Vigna aconitifolia Jacq (moth bean), and Portulaca oleracea L. (common purslane). The seeds of Vigna aconitifolia Jacq. (moth bean) and Portulaca oleracea L. (purslane) were germinated and plants were established for 25 days under controlled conditions in the soil in plastic pots. The plants were artificially flooded / waterlogged with Hoagland solution (1/10 conc.). The growth (root, shoot length and root to shoot ratio) was studied after every 7 days i. e after 0, 7, 14 and 21 days of treatment. It has been found that the root length of Vigna aconitifolia was increased after 7 d of growth under conditions while, it was not much affected under flood conditions. Similarly there was gradual increase in root length of Portulaca under control and it was decreased from 14 d in treated plants. The shoot length was increased under control in Vigna and slightly decreased from 14 d under flood conditions. The shoot length was increased under both control and treated plants of Portulaca. The root to shoot ratio was decreased under both control and flood conditions in both Vigna and Portulaca.

Keywords: Flooding, Moth bean, Purslane, Root Length, Shoot Length, Root Shoot Ratio.