SHIShu-yi,HOUShi-ji,YANGShou-jun,et al.EffectsofInsect-proofNetontheGrowthandFruitQualitytoChineseJujubeTree[J].Northern Horticulture,2012,36(12):39-42.
防护网对冬枣生长和果实品质的影响
- Title:
- EffectsofInsect-proofNetontheGrowthandFruitQualitytoChineseJujubeTree
- 文章编号:
- 1001-0009(2012)12-0039-04
- Keywords:
- Chinesejujube; insect-proofnet; rootpruning; physiologicalindicator; fruitquality; pesticideresidue
- 分类号:
- S665.1
- 文献标志码:
- A
- 摘要:
- 以7a生的冬枣（ZizyphusjujubaMill.）为试材，采用不同时间覆网并辅之根剪措施，研究防护网对冬枣生长及果实品质的影响。结果表明：冬枣开花前搭覆防护网结合根剪显著抑制了冬枣的二次枝生长、枣吊数量、坐果率、花量及产量，并明显降低了果实中的维生素C和可溶性糖含量，但未造成果实农药残留。而坐果后覆网加根剪对二次枝、坐果率、产量的抑制效果较小，并对枣吊数量和花量无明显影响作用。虽然坐果后覆网果实中检测到了农药残留，但相比对照显著降低，未对果实品质带来不利影响。2种覆网方式均降低了冬枣的光合特性。综合分析认为，坐果后覆网与根剪相结合是提高果实品质的有效措施。
- Abstract:
- Theseven-year-oldChinesejujubetreeswererespectivelycoveredwithinsect-proofnetindifferenttimetoevaluatetheinfluenceofinsect-proofnetonthegrowthandfruitqualityofjujubetrees.Theresultsshowedthatinsect-proofnetincombinationwithrootpruningsignificantlyinhibitedthegrowthofsecondarybranch，fruitshoot，fruitingrate，flowernumberandyield，andthesamemarkedlydecreasedinVitaminCandsolublesugarcontent，buthadbeneficialeffectonpesticideresiduespriortoflowering，incomparisontocontrol.Asinsect-proofnetreinforcedwithrootpruningwasappliedafterflowering，theinhibitioneffectsabovewerelessornotfound.Althoughpesticideresiduesweretestedinfruits，theircontentswereclearlylowerrelativetocontrol，wheninsect-proofnetwascoveredafterflowering.Thetwodifferentcoveringnetswerebothdeclinedthephotosyntheticproperties.Itisconcludedthatinsect-proofnetincombinationwithrootpruningafterfloweringmaybethebestchoiceforimprovementinfruitqualityofChinesejujubetrees.
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备注/Memo
第一作者简介：史淑一（1964-），女，本科，高级讲师，现从事应用气象研究工作。E-mail：ssy19640723@yahoo.com.cn。
责任作者：彭广霖（1959-），男，本科，高级讲师，现从事农业经济及作物栽培研究工作。E-manil：ytpgl1959@163.com。
基金项目：中国农业大学（烟台）校级资助项目（yt2007.14）；‘十一五’国家科技支撑计划重大专项资助项目（2006BAD03A1505-3）。
收稿日期：2012-02-22