（3）梨果（pome）。根据心皮结构的不同。三层果皮的厚度视果实种类而异。如桃，称为单性结实（parthenocarpy），以后每一雌蕊形成一个小果，如苹果，称为无子果实，形成的果实叫做单果。
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autonomic parthenocarpy [植] 自发单性结实 ; 自发单性坚固
automatic parthenocarpy 自发单性结实 ; 自发单性坚固
induced parthenocarpy 诱导单性结实 ; 诱导性单性结实
stimulative parthenocarpy 刺激性单性结实 ; 激致单性结实
natural parthenocarpy 天然单性结实
autonomous parthenocarpy 自发单性结实
vegetative parthenocarpy 营养性单性结实
loquat parthenocarpy 枇杷单性结实
pseudo parthenocarpy 伪单性结实
以上来源于: WordNet
N the development of fruit without fertilization or formation of seeds 单性结实
As the result shows, the tested material is a kind of temperature-sensitive parthenocarpy and express this characteristic under low temperature.
试验结果表明，供试材料的单性结实性属于温度敏感型，在低温下表达。
CPPU not only showed high activity in inducing parthenocarpy, the parthenocarpy set was as high as 100%, but also promoted the fruit development.
而CPPU处理不仅座果率高达100%，而且促进果实的生长产生单性结实果。
The CPPU is a kind of novel plant growth regulator which has higher activities in promoting cell division, fruit setting and inducing parthenocarpy.
CPPU是一种新型植物生长调节剂，具有促进细胞分裂、促进座果、诱导单性结实等特点，在农业、园艺等领域有广泛的应用。
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