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  • Author or Editor: R.H. Sharpe x
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Abstract

Approximately 80% of the seedlings of blueberry (Vaccinium spp.) and 55% of peach [Prunus persica (L.) Batsch] fruited the 2nd year after seed harvest when grown rapidly at densities of 16 plants/m2 for blueberry and 8 plants/m2 for peach. This permits roguing of plants on the basis of fruit characters in the 2nd year from seed harvest (24 months) and evaluation of remaining plants the following year. The fruiting nursery system, based on intensive care of seedlings at ultrahigh densities to achieve rapid growth, is suggested to improve breeding efficiency.

Open Access

Abstract

Growth cycle studies of blueberry fruit were investigated for 3 Florida selections ‘4-15’, ‘4-71’ and ‘Bluegem’ (‘6-164’) which differed in the length of time from an thesis to maturity. The 3 stages of fruit development were exemplified by a double-sigmoid curve. Fruit size increase in stage I was due primarily to cell division and in stage III to cell enlargement. Delayed growth rate in stage II was accompanied by rapid development of the embryo and endosperm. Duration of individual stages varied with the clone and temperature and the length of each growth stage was important in determining the time required from anthesis to fruit maturity.

Open Access

Abstract

‘Flordaprince’ is a low-chill requiring peach [Prunus persica (L.) Batsch] released for grower trial by the Florida Agricultural Experiment Stations in IFAS at the University of Florida. ‘Flordaprince’ bears attractive, large, high-quality, yellow-fleshed fruit (Fig. 1).

Open Access

Abstract

‘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.

Open Access

Abstract

‘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.

Open Access