Standardisation of agro-techniques for flower quality parameters in ornamental sunflower (Helianthus annus L.)
DOI:
https://doi.org/10.24154/jhs.v12i1.67Keywords:
Ornamental sunflower, mulching, spacing, fertilizers, qualityAbstract
An experiment was carried out on standardisation of agro-techniques for flower quality parameters in ornamental sunflower during 2012-13 at GKVK, campus, College of Horticulture, University of Horticultural Sciences, Bagalkot. In three way interaction effect longest stalk length (36.33) was in the treatment combination of mulching i.e M1 (with mulch) with a spacing of S1 (60 cm x 40 cm) at the fertilizer rate F1 (40:60:40 NPK kg ha-1). Stalk girth was maximum with mulching treatment of M1 (with mulch) at a spacing of S1 (60 cm x 40 cm) with the fertilizer rate of F3 (80:90:80 NPK kg ha-1) and without mulch at the spacing of S1 (60 cm x 40 cm) with fertilizer rate of F3 (80:90:80 NPK kg ha- 1) recording 0.49 and 0.46 cm respectively. Mulching i.e M1 (with mulch) at spacing S1 (60 cm x 40 cm) with fertilizer rate if F3 (80:90:80 NPK kg ha-1) produced plants with largest flower head diameter (13.24 cm). The treatment combinations of M1 (with mulch) + S1 (60 cm x 40 cm) + F3 (80:90:80 NPK kg ha-1) 4.65 cm recorded broadest flower disc diameter. Considering the results ornamental sunflower can be grown best without mulching, at a spacing of 60 x 30 cm or 60 x 40 cm with optimum to higher fertilizer dose to give best flower quality in ornamental sunflower.
References
DEEPA, S., 2007, Studies on the influence of plant density and nutrition on growth, seed yield, quality and storability of china aster cv. Poornima (Callistephus chinensis (L) Nees.), M.Sc. Thesis, Univ. Agri. Sci. Bengaluru.
GAVHANE, P. B., KORE, V. N., DIXIT, A. J. AND GONDHALI, B. V., 2004, Effect of graded doses of fertilizers and polythene mulches on growth, flower quality and yield of marigold (Tagetes erecta L.) cv. Pusa narangi gainda. The Ori. J. of Hort., 32(1): 35-37.
GIREESH, S. R., 2004, Effect of plant density and nitrogen on production and quality of china aster (Callistephus chinensis nees) cv. Phule ganesh white. M.Sc. Thesis, Univ. Agri. Sci. Dharwad
HEMALATHA, R., 2010, Effect of spacing and fertigation on growth and yield of bachelors button (Gomphrena globosa L.), M.Sc. Thesis, Univ. Agric. Sci. Dharwad.
KARUPPAIAH , P. AND KRISHNA, G., 2005, response of spacings and nitrogen levels on growth, flowering and yield characters of French marigold (Tagetes patula Linn.). J. of Ornl. Hort., 8(2): 96-99.
MARC, J. AND PALMER, J. H., 1976, Relationship between water potential and leaf on inflorescence initiation in Helianthus annus L. Physiol. Plant. 36: 101-204.
MUNIKRISHNAPPA, P. M., 2011, Standardization of production technology in china aster (Callistephus chinesis Nees.) under transitional tract of Northern Karnataka. PhD. Thesis Univ. Agri. Sci. Dharwad.
PANSE, V.S AND SUKHATAMANE, P.V., 2002, Statistical methods for Agriculture workers, ICAR, New Delhi, pp: 152- 155.
RANGAWALA, A. D., 1987, Standardization of production technology in tuberose (Polianthes tuberosa. L.) cv. Single, Ph.D. Thesis, Univ. Agric. Sci., Dharwad.
SHAILASHREE, S. P., SRIDHAR, V. AND SWAPNASHREE, ., 2004, Optimization of sunflower (Helianthus annuus L.) production under resource constraints. J. Oilseeds Res., 21(1): 92-94.
SHEKHAWAT, T. K., SHIVAY, Y. S. AND KUMAR, D., 2008, Productivity and nutrient up take of spring sunflower (Helianthus annuus) as influenced by nitrogen sources, sulphur and boron levels. Ind. J. of Agril. Sci., 78(1): 90-94.
SLOAN, R. C., HARKNESS, S. S. AND REEL, K. L., 2004, Effect of spacing on sunflower production. Annu. Res. Rep. of the North Miss. Res. & Ext. Ctr. Miss. AFES Info. Bull. 405: 380-382.
SOWMYAMALA, B. V., 2007, Effect of organic manures and inorganic fertilizers on growth, yield and shelf life of gaillardia (Gaillardia pulchella cv. D.G.S-1), M.Sc. Thesis, Univ. Agric. Sci. Bengaluru.
VENUGOPAL, C. K., 1991, Studies on the effect of plant density and nitrogen in groth and flower production in everlasting flower (Helichrysum bracteatum andr.). M.Sc. Thesis, Univ. Agric. Sci. Dharwad.
YATHINDRA, H. A., 2009, Effect of plastic mulching and fertigation on growth, yield and flower quality of china aster (Callistephus chinensis Nees), Ph.d. Thesis, Univ. Agric. Sci. Bengaluru.
Downloads
Published
Issue
Section
License
Copyright (c) 2017 Kirtimala B Naik, S K Nataraj, D P Kumar, Y G Shadakshari, G B Seetharamu, R Venugopalan, K V Jayaprasad (Author)
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Authors retain copyright. Articles published are made available as open access articles, distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original author and source are credited. 
This journal permits and encourages authors to share their submitted versions (preprints), accepted versions (postprints) and/or published versions (publisher versions) freely under the CC BY-NC-SA 4.0 license while providing bibliographic details that credit, if applicable.
How to Cite
. 
