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The Japanese plum, like other Prunus fruit tree species, is mostly self-incompatible and requires cross pollination to ensure fruit set because this genus is unable to bear fruit parthenocarpically. Several cultivars or varieties have however been identified with self-compatibility.
Pollination of fruit trees is required to produce seeds with surrounding fruit. It is the process of moving pollen from the anther to the stigma, either in the same flower or in another flower. Some tree species, including many fruit trees, do not produce fruit from self-pollination, so pollinizer trees are planted in orchards.
Prunus americana, commonly called the American plum, [7] wild plum, or Marshall's large yellow sweet plum, is a species of Prunus native to North America from Saskatchewan and Idaho south to New Mexico and east to Québec, Maine and Florida. [8] Prunus americana has often been planted outside its native range and sometimes escapes cultivation. [9]
Few flowering plants self-pollinate; some can provide their own pollen (self fertile), but require a pollinator to move the pollen; others are dependent on cross pollination from a genetically different source of viable pollen, through the activity of pollinators. One of the possible pollinators to assist in cross-pollination are honeybees.
A fungus in the genus Taphrina often attacks the plums; the young ovaries swell, often much larger than full grown plums, become hollow and often persist on the tree in winter. Known as "plum pockets", they appear pale green, leathery to the touch, and hollow with the exception of a few fibrous bands. The disease reduces regeneration of the plums.
Euglossine bees pollinate orchids, but these are male bees collecting floral scents rather than females gathering nectar or pollen. Female orchid bees act as pollinators, but of flowers other than orchids. Eusocial bees such as honey bees need an abundant and steady pollen source to multiply. Honey bee pollinating a plum tree. Bees are the most ...
Diospyros virginiana is a persimmon species commonly called the American persimmon, [3] common persimmon, [4] eastern persimmon, simmon, possumwood, possum apples, [5] or sugar plum. [6] It ranges from southern Connecticut to Florida , and west to Texas , Louisiana , Oklahoma , Kansas , and Iowa .
Prunus cerasifera is a species of plum known by the common names cherry plum and myrobalan plum. [3] It is native to Southeast Europe [ 4 ] [ 5 ] [ 6 ] and Western Asia , [ 3 ] [ 7 ] and is naturalised in the British Isles [ 4 ] and scattered locations in North America.