pyrus communis การใช้

• It is an autumn cultivar ( cultivated variety ) of the European pear ( " Pyrus communis " ).
• It is a cultivar ( cultivated variety ) of the species " Pyrus communis ", commonly known as the European Pear.
• The Manchurian or Ussurian Pear, " Pyrus ussuriensis " ( which produces unpalatable fruit ) has been crossed with " Pyrus communis " to breed hardier pear cultivars.
• They are small bundles of sclerenchyma tissue in plants that form durable layers, such as the cores of apples and the gritty texture of pears ( " Pyrus communis " ).
• Three major specimen trees are found along the Greenup Street boundary, include a Lebanon cedar ( Cedrus libani ), several Walnut trees ( Juglans regia ) and a grafted Williams pear tree ( Pyrus communis ).
• The Bradford pear ( " Pyrus calleryana "'Bradford') in particular has become widespread in North America, and is used only as an ornamental tree, as well as a blight-resistant rootstock for " Pyrus communis " fruit orchards.
• Characteristic examples are brachysclereids or the stone cells ( called stone cells because of their hardness ) of pears ( " Pyrus communis " ) and quinces ( " Cydonia oblonga " ) and those of the shoot of the cherries or plums are made up from sclereids.
• These very juicy, white to light yellow pears, unlike the round Nashi pears ( " P . pyrifolia " ) that are also grown in eastern Asia, are shaped more like the European pear ( " Pyrus communis " ), narrow towards the stem end.
• Perry pears are thought to be descended from wild hybrids, known as " wildings ", between the cultivated pear " Pyrus communis " subsp . " communis ", brought to northern Europe by the Romans, and the now-rare wild pear " Pyrus communis " subsp . " pyraster ".
• Perry pears are thought to be descended from wild hybrids, known as " wildings ", between the cultivated pear " Pyrus communis " subsp . " communis ", brought to northern Europe by the Romans, and the now-rare wild pear " Pyrus communis " subsp . " pyraster ".
• Among native species are hornbeam Carpinus caucasica, lime Tilia caucasica, T . cordata, beech Fagus orientalis, elm Ulmus elliptica, U . scabra, U . foliacea, oak Quercus macranthera, Q . iberica, Q . longipes, pine Pinus harmata and pear Pyrus communis ( note : Armenia is an important centre of pear diversity with over 20 known species ).
• Three species account for the vast majority of edible fruit production, the European pear " Pyrus communis " subsp . " communis " cultivated mainly in Europe and North America, the Chinese white pear ( " bai li " ) " Pyrus 譩retschneideri ", and the Nashi pear " Pyrus pyrifolia " ( also known as Asian pear or apple pear ), both grown mainly in eastern Asia.