Vol. 12 (3&4) : May-August, 2021 Issue
Morphological changes of Amaranthus spinosus L. under fluoride stress condition
M. ELAYARAJAN1*; S. PANNEERSELVAM2; P. PRAMILA3; K. BHATTACHARYA4 and K. PANIGRAHI5
Water Technology Centre, Tamil Nadu Agricultural University, Coimbatore - 641003 (T.N.)
Designation : 1Assoc. Professor (SS&AC),*(elayarajan1971@gmail.com), 2Director (WTC), 3SRF, 4Assoc. Prof (STCR) 5Assoc. Prof (SWC)
Subject : Crop Genetics and Plant Breeding
Paper No. : 4
Total Pages : 4
Received :
Revised accepted :
Get Access
Citation :
Elayarajan M.,Panneerselvam S., Pramila P., Bhattacharya K. and Panigrahi K. 2021. Morphological changes of Amaranthus spinosus L. under fluoride stress condition. Green Farming. Vol. 12 (3 & 4): 113-116, May-August, 2021.
ABSTRACT
A pot culture experiment was conducted during 2019 at the Water Technology Centre, TNAU, Coimbatore for the period of 60 days and keenly observed the effect of fluoride toxicity on physiological and biochemical changes of the amaranthus crop. The experiment consists of four levels of fluoride concentration and which is compared with control and absolute control. The result revealed that there is a diminishing in plant growth and physiological parameters with an increased fluoride concentration from 10 to 40 ppm. Visible symptoms such as chlorosis, necrosis, improper germination, crooked seedlings were observed in high concentrations (40ppm) showing plants sensitivity to fluoride ions. The decrease in chlorophyll content causes visible symptoms and an increase in catalase activity, showing plant stress for fluoride. High accumulation of fluoride content was noted in 20 ppm fluoride concentration, whereas lower accumulation was noted in control.
Key words :
Fluoride, Germination, Growth, Vigour index, DMP
