AXAY BHUKER*, V. S. MOR, PUNEETH RAJ M. S., SATPAL AND SATYAWANARYA
Department of Seed Science & Technology
Department of Genetics and Plant Breeding (Forage Section) CCS Haryana Agricultural University, Hisar-125 004 (Haryana), India
*(e-mail: bhuker.axay@gmail.com)
(Received : 12 March 2024; Accepted : 28 March 2024)
SUMMARY
Present study was carried out on two seed lots (Fresh and one year old) of two oat varieties i.e. OS 6 and HFO 611 in the Department of Seed Science and Technology, CCS HAU Hisar during 2022-23. The seed was hormo-primed with different concentrations of GA3 (200, 400, 600, 800 and 1000 ppm). The results revealed that hormo-priming resulted in enhancement in seed quality parameters in both the lots of both varieties as the concentration increased from 200 ppm to 600 ppm and thereafter it starts decreasing. Maximum enhancement in germination was observed in seeds hormo- primed with GA3 @ 600 ppm. The more enhancement in germination was observed in the hormo- primed seeds of old seed lot as compared to fresh seed lots in both the varieties. In variety OS 6, 1.4% enhancement in germination was recorded in hormo-primed seeds over control in fresh seed lot while enhancement was 16.96 % in hormo-primed seeds with GA 3@ 600 ppm over control in old seed lot. In variety HFO 611, enhancement in seed germination of hormo-primed seeds over control was 1.7 % in fresh seed lot and 16.26 % in old seed lot with same concentration. It is concluded from the study that hormo-priming with GA3 @ 600 ppm is very effective in enhancing the seed quality parameters of oat, hence this hormo-priming practice should be used to enhance the germination/ vigour of marginal/old seeds lots.
Key words: Priming, hormo-priming, Avena sativa, seed quality