'Dade'grown at the Agricultural Research and Education Center, Homestead, Florida from a seed of a selected fruit of a local seedling tree. It was planted in 1935 and fruited in 1939. They have light-gray, thick, warty bark and often develop long, drooping branches. It may be merely a form of C. sapota, below. Subsequently, Frederick Power and Thomas Callan of the Wellcome Chemical Research Laboratories in London, declared that, though they isolated 6 substances including 2 alkaloids, casimiroine and casimiroedine, there was "no evidence of the presence of a definite glucoside or a so-called glucoalkaloid ...and physiological tests conducted with animals ...likewise failed to confirm . They are hermaphrodite or occasionally unisexual because of aborted stigmas. They are planted as shade for coffee plantations in Central America. A fairly prolific bearer. In Florida there is usually just a spring-summer crop, but a heavy-bearing woolly-leaved tree in Miami blooms in December, fruits in the spring, blooms again and produces a second crop in the fall. The tree is low-growing and spreading, with smooth leaflets. The woolly-leaved is somewhat less hardy than the common white sapote. 'Yellow'originated in California; oval with pointed apex, furrowed; skin is bright-yellow and fairly tough; flesh is firm. If picked just a few days before fully ripe and ready to fall, the fruits turn soft quickly but they can be picked several weeks in advance of the failing stage and most will develop full flavor. The trees grew well and produced little in the coastal plain; bore good crops in the interior and commercial prospects seemed bright but the fruit did not appeal to consumers and was too attractive to fruit flies. A surprising number have been named and propagated: 'Blumenthal', 'Chapman', 'Coleman', 'Dade', 'Flournoy', 'Galloway', 'Gillespie', 'Golden' or 'Max Golden', 'Johnston's Golden', 'Harvey', 'Lenz', 'Lomita', 'Maechtlen', 'Maltby' or 'Nancy Maltby', 'Nies', 'Page', 'Parroquia', 'Pike', 'Sarah Jones', 'Suebelle', or 'Hubbell', 'Walton', 'Whatley', 'Wilson', 'Wood', 'Yellow'. Fruit ripens in fall and winter or more or less all year. In 1900, a quantity of white sapote seeds was sent from Mexico to F.H. Horticulturists in Israel took serious interest in white sapotes around 1935 and planted a number of varieties. reported hypnotic or toxic properties." The fruits are usually 4 to 4 1/2 in (10-11.25 cm) wide, ovoid, irregular and knobby, with rough, pitted skin, and there are often gritty particles in the flesh. - In southern Florida, the woolly-leaved is sometimes planted in preference to C. edulis. The white sapotes can be classed as subtropical rather than tropical. They have light-gray, thick, warty bark and often develop long, drooping branches. New Years Day, Just posted a photo @ Louie's Nursery instagram.com/p/CIL4a6wJIR3/…, Black Friday Sale day 2 now going on @louies_nursery . The flesh of ripe fruits may be added to fruit cups and salads or served alone as dessert, but it is best cut into sections and served with cream and sugar. In 1957, Meisels and Sondheimer announced that one of the bark alkaloids, edulein, which they had considered new, is identical with an alkaloid found in the bark and leaves of Lunaria amara Blanco, a citrus relative of Malayan origin. Tree is prolific bearer. White sapote trees range from 15 to 20 ft (4.5-6 m) up to 30 to 60 ft (9-18 m) in height. In Florida, flowers of some heavy-bearing, double-cropping, trees have been observed so heavily worked by bees that their humming is heard several feet away. They readily extracted from the seeds a soporific substance, 50 mg of which, taken by humans, induced sound sleep within 2 hours, with no apparent ill effects. Clonal selections were made in California from about 1924 to 1954, and several also in Florida. Within its native range, the white sapote is commonly eaten out-of-hand. One of these, casimirolid, was later found by F. Sondheimer, A Meisels and F. Kinel, to be identical with obacunone, an attribute of citrus oil. While some cultivars are self fertile, most do better with (and many require) a pollinator tree to be planted close by. As bearers of edible fruits, the white sapotes, despite their prolificacy, will doubtless continue to occupy the minor position which they now hold in subtropical horticulture. The fruits must be handled with care even when unripe as they bruise so easily and any bruised skin will blacken and the flesh beneath turns bitter. Young trees tend toward a single, limber stem for first 2 years often requiring staking. Growth is rapid, in flushes. Fruit Shape/Size. Cleft grafts and slot grafts are made on larger rootstocks and when topworking mature trees. It was planted in 1935 and fruited in 1939. Hockstein, of Chas. The white sapote has few natural enemies but the fruits of some cultivars are attacked by fruit flies. He found a dose of .20 g per kilo of animal weight to be definitely hypotensive. Of the 7 additional compounds, one palmitamide, had not previously been noted in the plant kingdom. Grafting is a common practice in California and Florida in midsummer. Worlee & Co., in Hamburg, Germany, with an accompanying explanation that both the fruit and the seeds possessed sleep-inducing principles but without the undesirable after-effects of opium. This is because many cultivars produce no p… Shield-budding and side-grafting in spring onto stocks up to 3/4 in (2 cm) thick give good results. In 1936, M. Mendez described the preparation of a tincture of "a clear yellow color with neither special odor nor taste" which produces "a state of depression in the entire nervous system, especially in the sensory sphere, and sleep." Some years ago in Central America there were unsuccessful efforts to manufacture from the pulp an acceptable preserve. White sapote trees are best adapted to subtropical climates with a distinct cool and or dry period. Difficult to propagate. Christmas Day According to Chandler, the fruits are objectionably bitter in California. Ripens in June-July. - In Florida, it was first planted with enthusiasm. The main alkaloid of the seeds, casimiroedine, representing 0.143%, was crystallized in the form of needles. Of the 3 larger-growing forms, the best known is the common white sapote, called zapote blanco by Spanish-speaking people, abché or ahache by Guatemalan Indians, and Mexican apple in South Africa, and widely identified as C. edulis Llave & Lex. C. sapota is very similar but the leaves usually have only 3, somewhat smaller, leaflets. The United States Department of Agriculture's Agricultural Handbook 154, Insecticides from Plants, mentions no experiments with Casimiroa seed extracts but reports that extracts from branches and leaves of C. edulis are non-toxic to both American and German roaches. If plucked by hand, the fruits will separate from the stem if given a slight twist but they will soon show a soft bruised spot at the stem-end which quickly spreads over much of the fruit, becoming watery and decayed. The tree bears regularly and heavily in California and South Africa.
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