• R. Sudhagar
• S. Sowmiya
• B. Pamela Elisheba

The present investigation on the “Influence of preservative chemicals and growth regulators on the post harvest physiological and biochemical parameters of gladiolus (Gladiolus grandiflorus L.) cv. American Beauty” was carried out in the Department of Horticulture, Faculty of Agriculture, Annamalai University, Annamalainagar. The experiment was conducted in a Completely Randomized Design with 13 treatments in three replications. The treatments consisted of two preservative chemicals viz., 8-hydroxy quinoline sulphate @ 150, 300, 450 ppm and silver nitrate @ 25, 50, 75 ppm along with benzyl adenine and gibberellic acid 20, 40 and 60 ppm and 10, 25 and 40 ppm respectively and a control (distilled water) was maintained. The results of the experiment revealed that the best treatment was T2 (8- HQS 300 ppm + 4 % sucrose + BA 40 ppm) in terms of all the physiological and biochemical parameters viz., water uptake, transpirational loss of water, water balance, fresh weight change and optical density of vase. From the above results it has been concluded that the use of vase solution containing 8 HQS 300 ppm + sucrose 4 per cent + BA 40 ppm found better for maintaining the spike quality of gladiolus cv. American Beauty.

8-hydroxy quinoline sulphate, sucrose, benzyl adenine

"EFFECT OF PRESERVATIVE CHEMICALS AND GROWTH REGULATORS ON THE POST HARVEST PHYSIOLOGICAL AND BIOCHEMICAL PARAMETERS OF GLADIOLUS SPIKES (Gladiolus grandiflorus L.) cv. AMERICAN BEAUTY", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 10, page no.576-581, October-2018, Available :http://www.jetir.org/papers/JETIR1810987.pdf

"EFFECT OF PRESERVATIVE CHEMICALS AND GROWTH REGULATORS ON THE POST HARVEST PHYSIOLOGICAL AND BIOCHEMICAL PARAMETERS OF GLADIOLUS SPIKES (Gladiolus grandiflorus L.) cv. AMERICAN BEAUTY", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 10, page no. pp576-581, October-2018, Available at : http://www.jetir.org/papers/JETIR1810987.pdf