alexa Comparative Influence of Brassinosteroids Correspondents (24-Epibl and 28-Homobl) on the Morpho-physiological Constraints of Brassica oleracea (Cabbage, Cauliflower and Broccoli) | Abstract
ISSN: 2168-9652

Biochemistry & Physiology: Open Access
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Research Article

Comparative Influence of Brassinosteroids Correspondents (24-Epibl and 28-Homobl) on the Morpho-physiological Constraints of Brassica oleracea (Cabbage, Cauliflower and Broccoli)

Spall Kaur Nirmal K1, Geetika Sirhindi1and Sandeep Kumar1,2*
1Department of Botany, Punjabi University, Patiala-147002, India
2Deen Dayal Upadhyaya College, University of Delhi, Karampura, New Delhi-110015, India
Corresponding Author : Dr. Sandeep Kumar
Assistant Professor, Department of Botany, Deen Dayal Upadhyaya College
University of Delhi, Karampura, New Delhi-110015, India and Department of Botany
Punjabi University, Patiala-147002, Punjab, India
Tel: + 91 9810685352
E-mail: [email protected]
Received: December 16, 2015; Accepted: December 23, 2015; Published: January 10, 2016
Citation: Spall Kaur Nirmal K, Sirhnidi G, Kumar S (2016) Comparative Influence of Brassinosteroids Correspondents (24-Epibl and 28-Homobl) on the Morphophysiological Constraints of Brassica oleracea (Cabbage, Cauliflower and Broccoli) Biochem Physiol 5:193. doi:10.4172/2168-9652.1000193
Copyright: © 2016 Spall Kaur Nirmal K, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

Influence of brassinosteroid correspondent viz. 24-epiBL and 28-homoBL were studied on morpho-physiological constraints of 10th DAS of Brassica oleracea viz. (cabbage, cauliflower and broccoli). Seed priming treatments with various concentrations of 24-epiBL and 28-homoBL (10–6 M, 10–9 M and 10–12 M) were applied and observed that BRs treatments encourages seed germination significantly as compared to untreated seeds on 3 and 4th DAS. Seed priming treatments with above mention concentrations of 24-epiBL and 28-homoBL exaggerated the morphology of 10th seedlings of cabbage, cauliflower and broccoli on various extents, as root length was found to be inhibited by all treatments in all the varieties but shoot length enhanced significantly in all varieties with all the treatments. Results also suggested that BRs works best on optimal concentration, i.e., 10–9 M in 24-epiBL. Photosynthetic pigments i.e. total chlorophyll, chlorophyll a and b, carotenoids were also influenced by the treatments of 24-epiBL and/or 28-homoBL but the influence was very much dose dependent and optimum dose was varying variety to variety. As there is a direct correlation between the photosynthetic pigment and carbohydrate synthesis so study also suggest that the accumulation of carbohydrate also ameliorated after seed priming treatments. In conclusion it was found that BRs works in dose dependent manner and optimum dose varying variety to variety. Broccoli responded most efficient to BRs treatments and 24-epiBL has more potential to promote morpho-physiological parameters of Brassica oleracea varieties.

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