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- Title
Influence of New Azadiractin Products on Seed Storability of Cowpea [Vigna unguiculata (L.) Walp].
- Authors
MANJULA, H. B.; PARASHIVAMURTHY
- Abstract
BRUCHID, a carryover pest from field, occupies major pest status in storage condition in cowpea seeds. Although there are several methods to control this pest, use of botanicals is the most effective, economical and eco-friendly measure. Laboratoury studies were conducted to know influence of new azadiractin products on seed storability of cowpea in completely randomized design. New azadiractin products i.e., neemazal and neemoz-gold along with deltamethrin at one ppm as chemical check was used to treat cowpea seeds and stored for nine months from July 2019 to April 2020. Effectiveness of azadiractin products were measured by recording insect population and seed quality parameters. Neemazal at 2.5 ml/kg treated seeds recorded highest seed quality parameters viz., seed germination (85.66 %), mean seedling length (12.59 cm), mean seedling dry weight (0.75 g), seedling vigour indices I & II (1078 and 64), field emergence (79.00 %), electrical conductivity of seed leachates (2.06 mS cm-1), total dehydrogenase activity at 480 nm (1.48), total protein (19.73 %), seed damage (11.41 %), seed infection (12.33 %), number of live insects / 1000 seeds (36.33), number of dead insects/1000 seeds (56.66) at the end of nine months of storage period as compared to untreated treated seeds (11.80 g, 11.72 %, 69.66 %, 11.35 cm, 0.72 g, 791, 51, 63.66 %, 2.08 mS cm-1, 1.14, 19.00 %, 21.16 %, 21.33 %, 76.00 and 134.33, respectively).
- Subjects
COWPEA; NEW product development; PEST control; SEEDS; INSECT populations; ELECTRIC conductivity
- Publication
Mysore Journal of Agricultural Sciences, 2022, Vol 56, Issue 1, p456
- ISSN
0047-8539
- Publication type
Article