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Diospyros virginiana L. (Ebenaceae), also known as common persimmon, American ebony, or possumwood, is a deciduous, medium-sized tree (12 to 18 m) native to the east–central and southeastern United States ( Fig. 1A ). Common persimmon is shade

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( McDaniel, 1973a , 1973b ). The golden-orange fruit are sweet when fully ripe and astringency is reduced. A common misconception is that the persimmon fruit is not edible and less astringent until it has frozen, but this is not the case with most cultivars

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The Mexican fruit fly infests many tropical and subtropical fruits, consequently fruits must be treated for quarantine security. Although chemical fumigations are the most common quarantine treatments, interest in using cold and heat treatments has increased due to concerns over environment and human health. Recently, shorter heat treatments such as those provided with radio frequency (RF) energy have been studied on walnuts and various fresh fruits as a possible quarantine treatment. Preliminary studies with a heating block system showed that reaching temperatures of 50 °C with a holding period of 2 min. or 48 °C for 6 minutes was required to achieve 100% insect mortality of 600 third instar Mexican fruit flies (the most heat resistant insect stage). Doubling the holding time required to achieve 100% insect mortality would likely be necessary to provide for Probit 9 security. Fresh fruits such as persimmons and guavas are commonly infested by the Mexican fruit fly. Persimmon and guava fruit were treated with RF energy to temperatures ranging from 48 to 52 °C at different holding periods. After treatments fruit were evaluated for external appearance, decay, soluble solids, titratable acidity, internal flesh quality, and ethylene production and respiration rate. Persimmon fruit tolerated the lower temperature, 48 °C for up to 18 min., but temperatures above 50 °C for more than 1 minute caused internal damage. Preliminary studies with guava indicate that fruit may tolerate 50 °C, but fruit quality after storage is still to be evaluated.

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Oriental persimmon, known simply as persimmon, is an important fruit crop in East Asia. Normally, persimmon accumulates abundant condensed tannins (proanthocyanidins) in fruit, which cause strong astringency. One of the main goals of the persimmon

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Peeling is a necessary process for the production of fresh-cut products. Chemical or mechanical peeling is the most common method for peeling of fruits and vegetables. However, these methods often lead to potential loss and damage of flesh and

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persimmon is a pollination-constant astringent (PCA) type and a late-ripening (late November) astringent persimmon; it is the most common persimmon cultivar in Hebei province. It is grown successfully in the humid continental climate and produces very large

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Common persimmon, Diospyros virginiana, a medium to large, attractive native tree of narrow habit, is potentially a valuable landscape tree due to its tolerance of diverse environmental conditions. Previous work by the authors demonstrated that seed stored in perlite or peat moss had a higher percent germination following cold storage than seed stored without media. Seeds were prepared for cold storage by two methods: 1) moist seed—cleaned (cap, skin, and the easily removed pulp discarded), and (2) dry seed—cleaned, dried for three days, and the remaining pulp removed. The media were either dried or moistened, but not saturated. The treatments were: 1) moist seeds; 2) dry seeds; 3) moist seeds in dry perlite; 4) moist seeds in moist perlite; 5) dry seeds in dry perlite; 6) dry seeds in moist perlite; 7) moist seeds in dry peat moss; 8) moist seeds in moist peat moss; 9) dry seeds in dry peat moss; 10) dry seeds in moist peat moss. Seed was stored at 4.4° for 142 days. Germination of seed stored in dry perlite was not significantly different from that stored in moist perlite or peat moss, but dry peat moss significantly limited germination regardless of seed preparation.

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concentration and the high phytosanitary risk. Therefore, one common objective for growers, marketers, and researchers is to introduce cultivars that allow the varietal range of persimmon to extend with certain success guarantees. It is noteworthy that the main

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( Zhao et al., 1998 ). Thus, polyploidy in Japanese persimmons, in which hexaploid or nonaploid plants are common, would enhance the occurrence of mutations, resulting in the emergence of many valuable bud sports such as TTN. Little is known about the

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‘Fupingjianshi’ persimmon ( Diospyros kaki L.) is one of the important astringent persimmon cultivars in northwest China. The cultivar is very fast to ripen at ambient temperature after harvest. Softening is a very important feature of persimmon

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