TITLE:
Growth of Four Varieties of Coffea arabica L. Biofertilized with Rhizophagus intraradices and Azospirillum brasilense in Nursery
AUTHORS:
Zoila C. Anzueto-Herón, Juan F. Aguirre-Medina, Juan F. Aguirre-Cadena, Cadena-Iñiguez Pedro
KEYWORDS:
Rhizophagus intraradices, Azospirillum brasilense, Coffee Varieties
JOURNAL NAME:
American Journal of Plant Sciences,
Vol.14 No.5,
May
24,
2023
ABSTRACT: Coffee production has decreased due to environmental and management
factors. The current plantations are old and unproductive, also due to the rust problem, caused by the fungus Hemileia vastatrix Berk & Br. Furthermore,
the shade in the production systems has decreased with the consequent
increase in soil erosion, in addition to the increase in agrochemicals.
Currently, the planting of new varieties with resistance to the fungus is
increasing. Furthermore, it has been shown that various biofertilized perennial
crops in nursery favor their growth. In this study, the effect of applying two
beneficial microorganisms, Rhizophagus
intraradices and/or Azospirillum
brasilense, to the planting of four varieties of Coffea arabica L. was evaluated. The coffee varieties marseillase,
geisha, sarchimor and costa rica 95 were established in bags with the following
treatments: 1) control, 2) R.
intraradices, 3) A. brasilense, 4) R.
intraradices + A. brasilense.
Morphological and physiological yield components were recorded 168 days
after transplanting. Data was analyzed statistically and differences between
treatments were compared according to Tukey (p ≤ 0.05). The results indicate
that individual or combined biofertilization of microorganisms favors dry
matter allocation compared to the control and the same is differentially
assigned to the stem and root. The Specific Leaf Area (SLA) also showed
differential response between applications of the microorganisms, in two
varieties it increased when they were applied alone and in the others when they
were applied together.