Effects of floral and foliar application of plant growth promoting rhizobacteria (PGPR) on yield, growth and nutrition of sweet cherry

2006 ◽  
Vol 110 (4) ◽  
pp. 324-327 ◽  
Author(s):  
Ahmet Esitken ◽  
Lutfi Pirlak ◽  
Metin Turan ◽  
Fikrettin Sahin
Keyword(s):  
Plant Growth ◽  
Sweet Cherry ◽  
Foliar Application ◽  
Plant Growth Promoting Rhizobacteria ◽  
Growth And Nutrition ◽  
Plant Growth Promoting ◽  
Growth Promoting

scholarly journals Management of Collar Rot of Chickpea (Cicer Arietinum) by Trichoderma Harzianum and Plant Growth Promoting Rhizobacteria

2008 ◽  
Vol 48 (3) ◽  
pp. 347-354 ◽  
Author(s):  
S. Maurya ◽  
Rashmi Singh ◽  
D. Singh ◽  
H. Singh ◽  
U. Singh ◽  
...  
Keyword(s):  
Plant Growth ◽  
Disease Control ◽  
Cicer Arietinum ◽  
Trichoderma Harzianum ◽  
Foliar Application ◽  
Plant Growth Promoting Rhizobacteria ◽  
Plant Mortality ◽  
Collar Rot ◽  
Plant Growth Promoting ◽  
Growth Promoting

Management of Collar Rot of Chickpea (Cicer Arietinum) byTrichoderma Harzianumand Plant Growth Promoting RhizobacteriaCollar rot (Sclerotium rolfsii) of chickpea (Cicer arietinum) is one of the devastating soil-borne diseases of fungal origin, due to which 10-30% yield loss is recorded annually according to severity of the disease. Management of collar rot of chickpea is not feasible in the absence of effective soil fungicides. However,Trichoderma harzianumand plant growth promoting rhizobacteria (PGPR) have shown high efficacy against this diseasein vitroas well as in the field. We usedT. harzianum(104, 106and 108spore/ml) and two PGPRs (Pseudomonas fluorescensstrain 4 andP. aeruginosa) as foliar spray with the fresh and heat inactivated microorganisms. Foliar application ofT. harzianum(108spore/ml) andP. fluorescensstrain 4 (108cfu/ml) showed maximum efficacy in reducing plant mortality as compared to the control. Foliar application of fresh-and heat-inactivated (121°C for 10 min)P. fluorescensstrain 4, andT. harzianumreduced 15-25% plant mortality butP. aeruginosashowed very little disease control of 10-15%. However, regarding plant growth promotion, it was observed that fresh-and heat-inactivatedP. fluorescensstrain 4 showed maximum efficacy followed by fresh and heat inactivatedP. aeruginosaandT. harzianumas compared to the control. The disease-controlling efficacy was also associated with the increase in phenolic acid synthesis in chickpea plants. The control of chickpea collar rot by biocontrol agents is safe and ecologically sound and appears to be a healthy approach to the disease control.

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