STUDIES ON DEVELOPMENT OF SEED PRIMING TECHNIQUES FOR ENHANCING PLANTING VALUE OF PADDY (Oryza sativa L.) UNDER AEROBIC CONDITION
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Date
2019-10-21
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UNIVERSITY OF AGRICULTURAL SCIENCES, GKVK BENGALURU
Abstract
The field experiment was conducted at National Seed Project, UAS, Bengaluru
during Kharif-2018 to know the influence of priming techniques on crop growth, seed
yield and quality of two vigour levels of paddy cv. IR-64 and MTU-1001 under aerobic
condition. The experiment was laid in split plot with three replications consisting
nineteen treatment combinations. The results revealed that, all the priming treatments
enhanced the crop performance and seed yield. Among treatments, Biophos @ 10%
treated seeds recorded highest seed quality, plant growth and seed yield attributes viz.,
seed germination (89.05%), speed of emergence (74.68), seedling length (35.67 cm),
seedling dry weight (11.07 mg), SVI (986), field emergence (93.81%), plant height at 30,
60, 90 DAS and harvest (26.95 cm, 61.73 cm, 82.74 cm and 92.41 cm respectively),
tillers plant-1
at 60, 90 DAS and harvest (27.78, 35.16 and 48.33 respectively), panicle
weight (4.19 g), panicle length (23.52 cm), spikelets panicle-1
(349.81), productive tillers
plant-1
(27.27), seed setting (88.63%), seed yield plant-1
(49.16 g), seed yield plot-1
(0.620
kg), seed yield hectare-1
(51.63 q), seed recovery (93.69%), test weight (24.19 g), higher
resultant seed quality viz., seed germination (97.70%), seedling length (39.77 cm),
seedling dry weight (10.82 mg), SVI (1084) and total dehydrogenase activity at A480
(1.405) with benefit cost ratio of 1:2.10, followed by Hydropriming and KNO3 @ 0.3%.
Magnitude of seed enhancement is higher in Biophos @ 10%, Hydropriming and KNO3
@ 0.3% and these treatments could be used in paddy to enhance crop performance and
seed yield.