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出 处:《北方园艺》2012年第6期38-40,共3页Northern Horticulture
基 金:陕西省杨凌示范区杨凌农业科技推广基金项目(YLTG2006-2-26)
摘 要:采用实地观察和分析的方法,研究日光温室栽培杏树的物候期对温度变化的影响。结果表明:日光温室内杏树物候期与露地相比发生了明显变化,生长前期同一物候期比露地延长,到果实硬核期后,同一物候期则明显缩短。1月份日光温室内气温可达到10.2~11.4℃,温室内杏树萌芽、开花、新梢生长几乎同时进行,而此时地温(20cm)为5.8~10.2℃,根系未进入快速生长期,落花现象较重。日光温室内杏树在果实着色期及成熟期时温差较室外小,分别为10.5~12.0℃,不利优质果品生产。By the method of field observation and analysis, the effects of phenological period of P. armeniaca L. growth inside the heliogreenhouse on the temperature changes were studied. The results showed that compared with open land, the phenotogical period of P. armeniaca L. growth inside the heliogreenhouse had an apparent change. During the early stage, the same phenophase was lengthened in contrast to outdoor snowing ; while after the fruit core-harding stage,it was apparently shortened. In January, the temperature in the heliogreenhouse could reach 10. 2 - 11.4℃. Besides, the P. armeniaca L. was budding, blooming and extending shoot almost simultaneously. At this time, the ground temperature varied from 5. 8-10. 2℃ ;root system did not enter into the time of rapid growth. Whereas, the blossom was dropping very gravely. Then,at the fruit colour period and mature stage,the difference in temperature inside the heliogreenhouse was smaller than that of oudoor's,it was 10. 5-12℃ ,which had a negtive effect on the high quality fruit production.
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