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- Title
Effect of some Flavonoids and Phenolic Acids on Seed Germination and Rooting.
- Authors
NANDAKUMAR, LAKSHMI; RANGASWAMY, N. S.
- Abstract
Nandakumar, L. and Rangaswamy, N. S. 1985. Effect of some flavonoids and phenolic acids on seed germination and rooting.Mdash;J. cxp. Bot. 36: 1313–1319. Effects of isovitexin (isolated from leaves of Rhynchosia minima), leucocyanidin, gallic acid, and protocatechuic acid on seed germination and subsequent seedling growth of a crucifer Brassica campestris, and two legumes Lens esculenta and R. minima, as well as effects of isovitexin on rooting of onion bulbs are described. Neither of the flavonoids affected seed germination in any of the three systems studied. However, both the flavonoids promoted seedling growth in B. campestris and L. esculenta; the promotion of root growth was more marked. At 10 and 10M, isovitexin also promoted rooting of onion bulbs. In the range of 2.27 × 10M to 3.28 × 10M, leucocyanidin promoted growth of both root and shoot in L. esculenta, whereas in the range 3.28 × 10M to l.64×lOM it suppressed seedling growth. In contrast to the flavonoids, the two phenolic acids tested inhibited seed germination at 10M, and at lower concentrations they suppressed seedling growth. The promotive effects of the flavonoids isovitexin and leucocyanidin, especially on root growth, hold promise for the use of such naturally occurring plant substances in studies on the physiology of plant growth and development.
- Publication
Journal of Experimental Botany, 1985, Vol 36, Issue 8, p1313
- ISSN
0022-0957
- Publication type
Article