sodininkystė ir daržininkystė 25(4)

M.9 rootstock favored larger fruits, whereas P 22 and P 59 – smaller ones
(Table 6). This confirmed previous findings of Kruczyñska and Czynczyk (1998)
and Skrzyñski (2002). Some authors reported that rootstock M.9 favored better
fruit coloring, whereas worse for P 22 and M.26 (Pätzold and Fisher, Baab, 1998).
However, this was not true for this experiment – investigated rootstocks did not
affected fruit coloring (Table 7).
Treatment
Veislës ir
poskiepio derinys
Table 7. Blush area (scale 0-5) of apple fruit skin as influenced by
different rootstock and year of study
7 lentelë. Obuoliø þievës paraudimo ploto (0–5 skalë) priklausomumas
nuo poskiepiø ir tyrimo metø
Blush area
Paraudimo plotas (0–5 skalë)
1999 2000 2001 2002
Mean for
treatment
Veislës ir
poskiepio derinio
vidurkis
‘Jonica’/M.9 4.00 a 4.25 ab 3.25 a 2.25 a 3.43 a
‘Jonica’/P 60 4.25 a 4.50 b 3.50 a 3.00 abc 3.81 a
‘Jonica’/M.26 4.00 a 4.25 ab 3.00 a 2.25 ab 3.37 a
‘Jonica’/P.22 3.66 a 3.33 a 3.00 a 3.33 c 3.33 a
‘Jonica’/P.59 3.25 a 4.25 ab 2.50 a 3.25 bc 3.31 a
3.84 b 4.16 b 3.05 a 2.79 a
Conclusions. 1. The investigated rootstocks significantly influenced trees’ vigour
expressed as trunk cross-section area (TCSA).
2. Rootstocks did not have an impact on fruit set.
3. The total yield did not depend on used rootstock. The most productive trees
were those grafted on rootstocks P 22 and P 59 followed by M.9, P 60 and M.26.
4. Rootstocks significantly differentiated the mean weight of fruit.
Gauta 2006-11-15
Parengta spausdinti 2006-12-11
References
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quality, light transmission and net photosynthesis of ‘Golden Delicious’ apple trees on
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Sci. 1985. 110. P. 696–701.
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hardiness of three apple cultivars. Fruit Sci. rep. 1979. 1. P. 26–33.
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