Relationship between Selenium and Sulfur Assimilation and Resultant Interaction on Quality Parameters in Onion

The relationship between selenium (Se) and sulfur (S) uptake and their interaction on the pungency and quercetin contents of onion was investigated in a sand culture trial under polyhouse conditions. The results indicated that application of Se with increasing rates produced an antagonistic effect o...

Full description

Saved in:
Bibliographic Details
Published in:Communications in Soil Science and Plant Analysis Vol. 43; no. 12; pp. 1625 - 1631
Main Authors: Qureshi, Abdul Aziz, Lawande, Kisan Eknath, Patil, Vaishali Balasab, Mani, Sibi
Format: Journal Article
Language:English
Published: Philadelphia, PA Taylor & Francis Group 15-06-2012
Taylor & Francis
Taylor & Francis Ltd
Subjects:
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The relationship between selenium (Se) and sulfur (S) uptake and their interaction on the pungency and quercetin contents of onion was investigated in a sand culture trial under polyhouse conditions. The results indicated that application of Se with increasing rates produced an antagonistic effect on S assimilation. An amount of 20 kg Se ha–¹ drastically reduced the S content in onion bulbs. Further, the pungency and quercetin concentration also declined. Foliar application of Se at 1.0 ppm resulted in production of bulbs with lower levels of pungency and quercetin. Though Se is essential from a health point, its application up to 10 kg ha–¹ was sufficient for enriching onions without much effect on the other essential bulb quality parameters.
Bibliography:http://dx.doi.org/10.1080/00103624.2012.681734
ISSN:1532-2416
0010-3624
1532-2416
1532-4133
DOI:10.1080/00103624.2012.681734