Annals of Biological Research
Abstract
Author(s): Maryam Niakan1*, Mahmood Darvishkhezri1, Alireza Iranbakhsh2 and Ali Barzegar3
In this research effect of Eucalyptus camaldulensis L. leaves compose as biotic stress in ratio 0,( control), 4 and 8%
(w/w) with soil and drought as abiotic stress include 25% and 10% of soil saturation capacity on growth
parameters of Sorghum were studied. Sorghum bicolor var. Speed feed seeds were planted under pots condition in
photoperiods 21 Ã?â??Ã?± 1 Ã?â??Ã?ºC and 14Ã?¢Ã?â?¬Ã?â?? h light /10 Ã?¢Ã?â?¬Ã?â??h dark. 30 days after planting were separated root from shoot and
growth parameters were determined. The results showed that length, fresh and dry weight of root and shoot,
number and area of sorghum leaves to application of decompose of Eucalyptus leaf in ratio 4%and 8% with soil
were significantly decreased. Also mild and sever stress of drought also reduced growth parameters in root and
shoot of Sorghum in comparison to control . Our data showed the growth reduction in Sorghum is more severe by
Eucalyptus leaf decompose as biotic stress in comparison to drought stress as abiotic stress.
