| 唐明,孙晓焱,刘意,冯轶,韦军.遮阴对梨树光合特性、环境温度及果实品质的影响[J].中国南方果树,2013,42(3): |
| 遮阴对梨树光合特性、环境温度及果实品质的影响 |
| Effects of overhead shading on photosynthetic trait, environment temperature, and fruit quality of pear trees |
| 投稿时间：2012-12-19 修订日期：2013-03-11 |
| DOI： |
| 中文关键词: 梨 遮阴 光合特性 果实品质 |
| 英文关键词:pear shading treatment photosynthetic trait fruit quality |
| 基金项目:江苏省农业科技自主创新资金[CX(11)2002] |
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| 中文摘要: |
| 以‘丰水’和‘二十世纪’为试材，研究了遮阴对供试材料生长环境、光合特性及果实品质的变化，研究结果表明：遮阴导致光照强度降低50.04%，叶幕温度平均下降1.97℃，果面温度平均下降3.68℃，净光合速率日变化由双峰型变成单峰型，气孔导度日变化保持双峰型，供试品种果实采收期推迟2周以上，遮阴对果实可溶性固形物含量的影响与品种有关。 |
| 英文摘要: |
| ‘Housui’ pear (Pyrus sertina cv. ‘Housui’) and ‘Nijisseiki’ pear (Pyrus sertina cv. Nijisseiki) were used as experimental materials in this article. Effects of shading treatment on growth environment, photosynthetic trait and fruit quality of the two sand pear varieties were studied. The results showed that: by the shading treatment, light intensity reduced by 50.04%, air temperature and fruit surface temperature respectively dropped by 1.97℃ and 3.68℃ averagely. Diurnal variations of net photosynthetic rate of the two varieties changed from two-peak pattern to single-peak pattern. Diurnal variations of stomatal conductance of the two varieties were two-peak pattern all the time. The harvest time in the two sand varieties was delayed more than two weeks. The effects of shading treatment on soluble solids content in fruits were related to varieties. |
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