Effect of pre harvest foliar spray of growth regulators on pre and post harvest parameters in ornamental sunflower genotype M-17R

Kirtimala B. Naik, S. K. Nataraj, Y. G. Shadakshari, D. P. Kumar, G. K. Seetharamu, K. V. Jayaprasad

Abstract


An experiment was conducted to study the effect of pre harvest foliar application of growth regulators on the pre and post harvest flower quality in ornamental sunflower during the year 2012-13, at College of Horticulture, GKVK campus, UHS, Bagalkot. At 60 DAS highest plant height was with GA3 @ 150 ppm (154.73 cm) followed by GA3 @ 200 ppm (146.20 cm) and GA3 @ 250 ppm (145.53 cm). Sodium silicate @ 250 ppm (4508.77 cm2) registered maximum plant spread at 60 DAS. Foliar application of GA3 @ 150 ppm (25.00) produced highest number of leaves which was at par with Sodium silicate @ 250 ppm, GA3 @ 200 ppm and GA3 @ 250 ppm recording 24.87, 24.80 and 24.67 leaves respectively. Calcium sulphate @ 200 ppm registered highest leaf area of (4930.30 cm2) which was at par with Sodium silicate @ 250 ppm, Calcium sulphate @ 300 ppm, Chlormequat chloride @ 500 ppm, Sodium silicate @ 350 ppm, and Chlormequat chloride @ 1000 ppm with 4792.64, 4735.04, 4721.75, 4503.05 and 4430.02 cm2 respectively.


Keywords


Ornamental sunflower, growth regulators, quality parameters, vase life

Full Text:

PDF

References


Chikkur, S. S., 2010, Silicon as foliar spray on growth,

yield and quality of Rose. M.Sc. Thesis, Univ.

Agri. Sci. Bengaluru.

Dorajirao, A. V. D., Mokashi, A. N., Patil, V. S.,

Venugopal, C. K., Lingaraju, S. and Koti, R. V.,

, Effect of plant spacing on growth, yield

and benefit-cost ratio in garland chrysanthemum

(Chrysanthemum coronarium L.). J. Asian

Hort., 6 (3): 87-93.

Dutta, J. P., Ramadas, S.and Khadar, M. D., 1993

Regulation of flowering by growth regulators in

chrysanthemum (chrysanthemum indicum.

Linn.) Cv. Co1. S. I nd.Hort., 41 (5): 293-299.

Herrera, O. J. And Benedetto, A. H., 1992, New

growth retardant uniconazole for cut

chrysanthemums. Rev. Fac. Agron., 13 (2-3):

-143.

Kamenidou, S., 2005, Silicon supplementation affects

greenhouse produced cut flowers. M.Sc. Thesis.

Oklahoma State University. Stillwater,

Oklahoma.

Kameniduo, S. And Todd, J. C. And Stephen, M., 2008,

Silicon supplements affect floriculture quality

traits and elemental nutrient concentrations of

greenhouse produced gerbera. Scien. Hort.,

: 390-394.

Katkar, P. B., Naik, D. M., Boodamwad, S. G. and

Gharat, S. N., 2003, Influence of plant growth

regulators on flowering, quality and yield of

flower in china aster cv. California giant mix. S.

Ind. Hort., 53(1-6): 378-381.

Kore, V. N., Meman, S. L. and Burondkar, M. M.,

, Effect of GA3 and fertigation on flower

quality and yield of China aster (Callistephus

chinensis L.) var. “Ostrich Plume Mixed” under

Konkan agro-climatic conditions. The Orissa J.

of Hort. 31(1): 58-60.

Lokhande, B. S., Deshmukh, M. and Kawarkhe, V. J.,

, Effect of growth regulators on growth

and flower yield of annual chrysanthemum. Ann.

Plt. Phsio., 22 (2): 268-271.

Leshem, Y. Y. 1992, Plant Membrane: A Biophysical

Approach to Structure, Development and

Senescence. Kluwer Academic Publisher,

Dordrecht. ISBN 0-7923-1353-4.

Michalczuk, B., Goszczynska, R. D., Rudnicki, D. and

Halevy, A. H., 1989, Calcium promotes longevity

and bud opening in cut rose flowers. Israel J.

Bot., 38: 209-215.

Muhammad A., Sharafat, K., Shah, A. H. and Khalil,

S. A., 1997, Response of large flowered incurve

chrysanthemum (Chrysanthemum morifolium)

to various concentrations of paclobutrazol.

Sarhad J. Agri., 13(2): 117-122.

Panse, V.S and Sukhatamane, P.V., 2002, Statistical

methods for Agriculture workers, ICAR, New

Delhi, pp: 152- 155.

Parmeshwar, A. S., 2010, Evaluation of sunflower

(Helianthus annuus L.) germplasm for

ornamental cut flower production. MSc. Thesis

Univ. Agri. Sci., Bengaluru.

Patil, V. S., 1998, Standardization of production

technology in daisy (Aster amellus L.).

Ph.D. Thesis. Univ. of Agric. Sci., Dharwad.

Syamal, M., Rajput, C. B. S., Upadhyay, R. K. and

Singh, J. N., 1990, Effect of GA3 and MH on

growth, flowering and seed yield of Marigold

and China aster. Indian J. Hort., 47 (4): 439-

Spitzer, T., Matusinsky, P., Klemova, Z. and Kazda, J.,

, Management of sunflower stand height

using growth regulators. Plant soil environ.

(8): 357–363.

Srikanth, L. G., 2011, Influence of growth regulators

on growth, flowering and yield of china aster

(Callistephus chinensis L. Nees). M.Sc.

Thesis, Univ. Agri. Sci. Bengaluru.

Torre, S., Borochov, A. and Halevy, A. H., 1999,

Calcium regulation of senescence in rose petals.

Physiol. Plant., 107: 214-219.

Wroblewska, K. and Debicz, R., 2011, The effect of

silicon application on the development of season

ornamental plants. Acta Agrobotanica, 64 (4):

-114.






Copyright (c) 2019 Kirtimala B. Naik, S. K. Nataraj, Y. G. Shadakshari, D. P. Kumar, G. K. Seetharamu, K. V. Jayaprasad

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.