Journal of Applied and Natural Science 6 (2): 725-728 (2014)
Biochemical attributes of Indian mustard (Brassica juncea) and rapeseed
(B. napus) as influenced by salicylic acid and benzothiadiazole.
Meenakshi Thakur1*, B. S. Sohal1 and Sanjula Sharma2
1Department of Biochemistry, College of Basic Sciences and Humanities, Punjab Agricultural University, Ludhiana-141 004,
2Department of Plant Breeding and Genetics, College of Agriculture, Punjab Agricultural University, Ludhiana-141 004,
*Corresponding author. E-mail: email@example.com
Abstract : A field experiment was conducted during 2011-12 at
Punjab Agricultural University, Ludhiana, India to assess the effect of foliar
application of elicitors viz., salicylic acid (SA) and benzothiadiazole
(BTH) on biochemical constituents of Brassica seeds. Seeds of
Brassica juncea and B. napus were sown in the field during
rabi season. Four different treatments of elicitors along with a fungicide
and control were given to 10 week old plants up to four consecutive weeks. After
harvesting, the seeds were analyzed for oil, total soluble protein and
glucosinolate content. Results indicated that the elicitor treatments increased
the oil, total soluble protein and glucosinolate content in seeds of both the
Brassica species. In B. juncea, BTH (7 ppm) + SA (17 ppm)
showed 12.5% higher oil content than control. In B. napus, the
combinations of elicitors viz., BTH (3 ppm) + SA (33 ppm) and BTH (7
ppm) + SA (17 ppm) exhibited 15% increase in oil content compared to control.
Treatment containing BTH (3 ppm) + SA (33 ppm) showed 18.72 and 15.86% higher
total soluble protein content in B. juncea and B. napus seeds,
respectively compared to control. In B. juncea, BTH (3 ppm) + SA (33
ppm) exhibited 7.13% higher glucosinolate content compared to control. In B.
napus, BTH (7 ppm) + SA (17 ppm) showed 11.23% higher glucosinolate content
than control. In conclusion, the application of elicitors, i.e., SA and BTH
could be a useful tool for improving the nutritive value of B. juncea
and B. napus seeds..
Keywords : Benzothiadiazole, Brassica, Glucosinolate, Oil,
Total soluble protein, Salicylic acid.