Evaluating the potential of incorporating sugarcane host plant resistance into integrated nematode management strategies
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Date
2015-05Author
Chirchir, Alexander K
Kimenju2, John W.
Ariga, Emmanuel S.
Kariuki, George M.
Omondi, Chrispine O.
Language
enMetadata
Show full item recordAbstract
Certain sugarcane cultivars have been shown to exhibit resistance against
some parasitic nematode species. A field study was conducted to assess
potential of integrating this property into nematode control packages to
enhance sugarcane productivity. Three sugarcane cultivars were evaluated
in a split-plot design under three rates of nematicide aldicarb and replicated
thrice. Significant differences (P ≤ 0.05; P ≤ 0.01) were observed in girth,
plant height, millable stalks number and yield among the different cultivars
and nematicide rates. KEN83-737, N14 and Co 421 reduced nematode
populations in treated plots by 67, 49 and 32% while supporting nematode
population growth in untreated plots by 24, 33 and 92% respectively at 9
months after planting. Reduction in nematode numbers resulted in a mean
increase in yield, girth, plant height, millable stalks number and pol % cane
by 34, 18, 37, 53 and 6% respectively. This reduction was highest for
resistant and lowest for susceptible cultivars, hence indicating the reduction
was partly due to host-plant resistance status of the cultivars. This study
established that use of resistant/ tolerant cultivars with aldicarb has an
additive effect in reducing nematode numbers resulting in improvement of
yield and quality of sugarcane.
Citation
Kipkorir, A., Kimenju, E. S., Ariga, G. M., & Omondi, C. O. (2015). Evaluating the potential of incorporating sugarcane host-plant resistance into integrated nematode management strategies. International journal of agricultural policy and research Vol.3 (5), pp. 213-221Publisher
University of Nairobi