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AGRICULTURAE
CONSPECTUS SCIENTIFICUS
Vol. 63, No. 4, 1998
(299-306)
ORIGINAL
SCIENTIFIC PAPER
Combining Abilities
of Leaf Parameters in Burley Tobacco
Jasminka BUTORAC
SUMMARY
Four parent
burley tobacco cultivars and their 6F 1 hybrids were included in diallel
crosses in a 4-year trial. The trial was set up according to RCBD in 4
replication. Seven leaf parameters, depending on their position on stalk,
were used to study the manner of inheritance by means of the general and
specific combining abilities. Significant general and specific combining
abilities were estimated for all traits, but not for all investigation
years, independently of their position on stalk. From the GCA/SCA ratio,
a higher GCA values were estimated for all studied traits, and for most
investigation years. The genotypes TN 86 and Poseydon were the best general
combiners, while Hy 71xBL1 and PoseydonxBL1 were the best specific combinations.
KEY WORDS
Nicotiana
tabacum L, burley, combining abilities, leaf parameters, leaf position
on stalk
duhaninst-zg@zg.tel.hr
Tobacco Institute Zagreb
Planinska 1, 10000 Zagreb, Croatia
Received: November 17, 1998
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