Influence of Seed Priming with Oil Cake Extracts on Quality Parameters of Maize Seeds
2018
Seed priming is a widely recommended pre sowing seed treatment, proven for its invigorative
effect. An investigation was carried out to study the effect of seed priming with oil cake extracts on
physiological seed quality parameters viz., speed of germination, germination, root and shoot length,
vigour index and biochemical seed quality parameters viz., electrical conductivity and total amino
acid content. Seeds of maize cv TNAU Maize hybrid CO 6 were primed with extracts of various oil cake
viz., groundnut, sesame, coconut, cotton and neem each at different concentrations of 5, 10, 15 and
20 % and evaluated for their physiological and biochemical quality along with hydro and nonprimed
seed. Among the priming treatments, maize seeds primed with sesame oil cake extract 5 % for
12h showed early germination (6.0), highest germination (92 %), root (22.06 cm) and shoot length
(18.72 cm) and vigour index (3752) than nonprimed seeds. The biochemical causes responsible
for invigourative effect due to seed priming were identified as enhanced total amino acid content
with low electrical conductivity of seed leachate.
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