Flowering and Cross-Compatibility in Apple Cultivars Growing in the Kullu Valley of India
DOI:
https://doi.org/10.71318/apom.2002.56.1.46Abstract
The time and duration, overlap in bloom period and cross-compatibility of different cultivars in the Kullu valley of India were studied. Flowering was 3 to 4 days earlier in 1998 than 1997. The flowering period of different apple cultivars extended between second week of March to the end April/first week of May both years. Flowering duration ranged from 10 to 15 days in 1997, and 9 to 17 days in 1998. The full bloom period of most cultivars synchronized with the pollinizing cultivars viz. Jonathan, Black Ben Davis, Red Gold and commercial. The pollinizers ‘Jonathan’, ‘Black Ben Davis’, ‘Red Gold’ and ‘Commercial’ are compatible with most of the commercial cultivars as revealed from completion of in vitropollen tube growth 72 to 120 h after pollination. The pollinizer Malus robustaand ‘Golden Delicious’ did not synchronize in bloom with main cultivars. M. robustaflowered two weeks and ‘Golden Delicious’ one week earlier than most cultivars.
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