Evaluation of osmotic potential, electrical conductivity and Ph measurements as indicators of store pest damage assessment for wheat and barley seeds

Abstract :

Damage of two identified store pest Rhyzopertha dominica (Fabricius) (Col.: Bostrichidae) and Sitophilus oryzae L. (Col.: Curculionidae) evaluated on wheat and barley types. Sound and damage seeds were two treatments of which examined to a particular determination of osmotic potential (yp), Electrical conductivity (Ec) and pH under lab circumstances: (28 ± 1) ºC, (L: D), (16:8), (45 ± 5) RH%. The results showed Sitophilus oryzae was the more detrimental pest and Bam Wheat variety was nominated as the most vulnerable seed with the most damage percent = 10.65%, and leakage factors assigned y= -0.291 atm, EC = 0.433µs, while Kavir Barley variety had higher tolerant in front of pests (­Mean damage percent = 0.67%, y= -0.133 atm, EC = 1.383µs­). Therefore, osmotic potential (yp) and electrical conductivity (Ec) showed a correlation with pest damage. Seed leaching may be self-evidence on susceptibility against pests and our findings may consider as an initial procedure in the first step of crop management.

Keyword :

Seed, store pests, injury, leakage aspects

Author(s) : Forghani, S. H. R., Hamidi, A., Shaterian, J.
Downloads : 11
Published Issue : 2021 Vol. 16 Number 1

2021 Vol. 16 Number 1