Fruit color of selections of native V. elliotti Chapm. varied from black to blue. Wax on fruit was occasionally found to be globular in form but most often waxes were found to range from flat plates to upright platelets and from horizontal rods to long upright rods. Combinations of wax forms occurred in varying densities on the fruit of native selections. Upright rods and platelets accounted for the blue fruit color. Mature black fruit usually had a limited amount of platelet wax and no rodlet structures. β-Diketones were absent or nearly absent on these mature black fruit. Black fruit had some of the higher weight loss measurements. The paraffin content of the fruit wax was relatively high at one location for some black selections and appeared to reduce weight losses of these selections to levels similar to the bluer selections. Leaves had only globular wax forms, less wax than fruit, and considerable variation in the density of acerate trichomes. Leaf hair density and distribution on leaves was independent of variation in wax forms on fruit.
‘Sunhome’ nectarine is released by the Univ. of Florida Agricultural Experiment Station. All nectarines released by the Univ. of Florida begin with the prefix of “Sun”. The suffix “home” indicates the intended use of flower, fruit, and foliage in the home yard and garden. ‘Sunhome’ closely resembles ‘Sunred’ nectarine in all respects, except that the spring foliage of the former is red.
Facultative apomixis is characteristic of a number of Malus spp., but generally has been restricted to triploid and tetraploid forms (3, 4). However, apospory has been described in cultivated apples (2), but this phenomenon has not been thought to commonly occur. We believe that a seedling of ‘Anna’ in an experimental planting at Gainesville is evidence of such an occurrence.
‘Flordahome’ pear was released by the University of Florida Agricultural Experiment Station in 1981 and fills the need for a pear with a low-chilling requirement that produces fruit which acquires a buttery, melting texture upon ripening. It is recommended for local use, but should be valuable germplasm for breeding pear cultivars with low chilling and resistance to fireblight and leafspot.
‘Sungem’ nectarine [Prunus persica (L.) Batsch] (Fig. 1) was released to provide an early ripening nectarine for commercial markets. All nectarines released by the Univ. of Florida begin with the prefix “Sun”. ‘Sun-gem’ is expected to be successful for homeowners, consumer harvest, local markets, and commercial growers with large acreage.
Fruit set from self-pollination averaged 67% in 4x highbush type complex (blueberry cultivars derived from at least 5 species including Vaccinium corymbosum L.) as compared to 18% in 6x rabbiteye (V. ashei Reade) cultivars. Fruit set from cross-pollination within highbush averaged 82% as compared to 47% in rabbiteye. Seed per berry from self-pollination averaged 3.9 in highbush and 1.5 in rabbiteye. Seed per berry from cross-pollination within highbush averaged 11.2 as compared to 8.5 within rabbiteye. Cross-pollination is desirable for maximum fruit set in both highbush and rabbiteye but appears especially critical in rabbiteye.