| ORIGINAL
ARTICLE |
|
|
|
In earlier
studies, high concentration of DPJ from various forages inhibited
germination, induced mutations in some seedlings and caused phytotoxic
phenotypical changes in plants during growth. The physiological changes
were absence of leaves and presence of more stipules in few pea plants.
DPJ obtained from Lucerne and Eicchornia crassipes found causing
chromosomal aberrations at high concentrations i.e at 0.50%, 1%, 1.5%
and 2% in onion and garlic root meristems during the process of
mitosis. It showed normal growth of Celosia plants by the effect of
Eicchornia DPJ, when the concentrations are increased from 0.1 to 1 %
level.
The objective of research is to determine DPJ as mutagenic agent for
effecting the cell chromosomal changes for the purpose to optimize the
crops physiologically and genetically by its stress application.
During present investigation, the so called antipathogen water hyacinth
DPJ potentiality changed the chromosomal response of Celosia at 1.5 %,
and 2 % high concentrations. It was compared with the control. Celosia
consists of the anomalous secondary growth in the root or stem. In
mitotic study, mostly restitution prophases and unorientation of
anaphases were found in the germinated seedling somatic cells because
of the exogenous application of DPJ to the seeds.
