Impact of seed treatments on quality of different aged seeds of oat (Avena sativa L.)
Abstract
The present studies entitled “Impact of seed treatments on quality of different aged seeds
of oat (Avena sativa L.)” were carried out at Laboratory and field of Department of seed science
and technology, CCS HAU, Hisar. The seed treated with Azotobacter+Phosphate solubilizing
bacteria enhanced the seed quality in terms of all parameters of fresh, one year old and two year
old seed lot of oat and Chlorpyrifos and their combinations showed negative effect on seed
quality. Among the three years seed lots, highest performance were observed in freshly harvested
seeds for various seed quality parameters i.e radicle emergence (88.69%), speed of germination
(54.33), standard germination (93.46%), seedling length (40.94 cm), seedling dry weight
(12.37mg), vigour index-I (3,829.30), vigour index-II (1,156.93), field emergence index (9.75),
seedling establishment (69.96%) and plant height (28.75cm) at 30 days whereas, the maximum
enhancement in standard germination and vigour indices was observed in one year seed lot and
the minimum was observed in fresh seed lot. The correlation study shows that the field emergence
of oat had positive and significant correlation with germination percentage, seedling length and
seedling dry weight. The seedling establishment was also found significantly correlated with
vigour index-I, vigour index- II, field emergence and speed of germination. Similarly, field
emergence index was significantly correlated with vigour index-I, seedling length, vigour index-
II, seedling dry weight, germination percentage and non-significant with speed of germination.
The seedling establishment of oat in the field was found to have significant positive correlation
with most of the seed quality parameters such as germination percentage, seedling length and
seedling dry weight but negative correlation with radicle emergence.