Horticultural Research Station, Yercaud 636 602, Tamil Nadu Agricultural University, Tamil Nadu, India
*Corresponding author E-mail: agrips@rediffmail.com
Online published on 5 May, 2014.
In coffee plants treated with different biocontrol agents the enzyme activity of peroxidase (PO), polyphenol oxidase (PPO) and phenylalanine ammonia lyase (PAL) was assayed. Significant increase in the activities of PO, PPO, and PAL enzymes was observed in consortium treated coffee plants. The results indicated that the plant growth promoting rhizobacterial consortium Pfbv22+Bbv57 was capable of inducing systemic resistance against lesion nematode, Pratylenchus coffeae by accumulation of defence enzymes viz., PO, PPO and PAL. The population density of P. coffeae decreased and yield of coffee bean increased in Pfbv22+Bbv57 treated plants.
Coffee, Pfbv22+Bbv57, systemic resistance, Pratylenchus coffeae, bean yield
