Two methods of preselection for res

Two methods of preselection for resistance to coffee berry disease, by artificial inoculation of young
coffee seedlings, have been developed recently at the Coffee Research Station in Kenya. The efficiency
of these methods has been investigated in a series of experiments by comparing the results of the
preselection tests with mature plant resistance, as indicated by visual field scores and artificial
inoculation of berries and bud leaves of mature trees and including a large number of varieties and
cultivars of Coffea arabica. The preselection test, by which the hypocotyl stems of 6-week old
seedlings are inoculated with a spore suspension of the pathogen, proved to be more reliable than
the second preselection test with shoot-tips of 10-month old plants. Correlation coefficients between
the preselection test and mature plant resistance were resp. r -- 0.734).80 for the first test against r
0.60 for the latter.

Results (English) 2:

Two methods of preselection for resistance to coffee berry disease, by artificial inoculation of young
coffee seedlings, past tense at the Coffee Research Developed Station Recently in Kenya. The efficiency
of những methods investigated in a series bị by Comparing the results of Experiments of the
preselection tests with mature plant resistance, as indicated by visual field scores and artificial
inoculation of berries and leaves of mature trees bud and a large number of Varieties gồm and
cultivars of Coffea arabica. The preselection test, by đó hypocotyl stems of 6-week old
seedlings inoculated with a spore suspension are of the pathogen, proved to be more reliable coal
with the second preselection test shoot-tips of 10-month old plants. Correlation coefficients giữa
the preselection test and mature plant resistance là resp. r - 0734) .80 for the first Test Against r
0.60 for the latter.