Yield performance of potato clones with durable resistance to late blight
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Date
2011-09Author
Landen, J.A.
Nderitu, S.W. K
Onditi, J. O.
Language
enMetadata
Show full item recordAbstract
Higher yielding potato vanenes are highly demanded by farmers and
consumers. This study was conducted to determine yield performance of 15
potato clones derived from a breeding population with durable resistance to
late blight. Trials were carried out over two cropping seasons at Tigoni, Molo,
Nyandarua and Meru. Data was collected on plant vigor, number of marketable
size tubers and tuber yield. There was significant (P=0.05) variation in yield
performance of different genotypes across the different sites. Four clones, CIP
393077.159, 393077.54, 393111.13 and 395112.36 were identified with
significant (P=0.05) higher plant vigour than the rest of the genotypes. Two of
these, CIP 393077.159, 393077.54 were found with significant (P=0.05)
higher mean yield of 48.2 Tlha and 52.4 Tlha, respectively than that of the
highest yielding check variety Tigoni which yielded 36.7 TIha. The two higher
yielding clones did not however, have significant higher number of tubers per
plant than the rest ofthe clones but had a good mixture of seed and ware tuber
grades. Due to higher yields, the two clones identified in this study were
recommended for release ..
Citation
Optimimization of Agricultural Value Chains for sustainable DevelopmentSponsorhip
National Council of Science and Technology, The Kenya Seed CompanyPublisher
Faculty of Agriculture, University of Nairobi
Description
aGRO 2011 Biennial Conference presentation