EFFECT OF POLLINATION DATES ON FRUIT SET, MATURITY PERIOD, HARVEST AND FRUIT QUALITIES OF ANNONA AT ALEXANDRIA. | ||
| Journal of Plant Production | ||
| Article 30, Volume 29, Issue 12, December 2004, Pages 7423-7437 PDF (4.64 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jpp.2004.238975 | ||
| Author | ||
| Aisha A. Sadr, | ||
| Tropical Fruit Divission, Sabahia Hort. Stat. Alexandria, Hort. Res. Inst., Agric. Res. Center., Giza - Egypt. | ||
| Abstract | ||
| Two annona (Cherimoya) species namely; A squamosa (local cultivar called known as Baladi) and A atemoya (Cherimata variety) were pollinated during flowering periods of Using alternative treatments and self pollination to study the effect of pollination date on fruit set and fruit qualities, fruit maturity periods, percentages of harvested fruits and harvest dates. The research aimed to decreasing labors coasts by selecting the most effective dates for hand pollination to increase yield and fruit qualities and controlling the maturity period needed for growers under similar environments to send fruits to markets in suitable time for high gains and offer fruits in different dates. The research also help in choosing suitable pollinators for each cultivar in each date for increasing yield by hand pollination. The data indicated better fruit set reflecting high compatibility using A atemoya (Cherimata variety) treatments either as male or female parents especially during July in both seasons with slight differences between dates due to changes in flowering duration in both seasons. Generally, the maturity periods were higher for pollinated flowers during early and mid-flowering and decreased at the end of flowering season. The fruit qualities showed wide range of differences not only related to pollination dates but also due to variety differences, season and relations between different criterias such as fruit weight and dimension, seed number and weight, peel weight., TSS and acidity. Significant differences were found between dates of pollination of self Asquamosa treatment (for fruit length, acidity in 2001 and fruit weight, length, seed weight and TSS in 2002) and between dates of pollination of Asquamosax A atemoya (Cherimata) for seed weight in 2001 and between pollination dates of self Aatemoya (Cherimata) treatment for seed number, peel weight and TSS in 2002, while all other treatments showed non significant differences between pollination dates. It was general!y found that pollination treatments during July produced higher percentages of fruits than those treatments during June and the harvest was higher in October than November. | ||
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