修剪强度对新疆密植骏枣果实产量和品质的影响

Effect of Pruning Intensity on Fruit Yield and Quality of Close Planting Jun-jujube from South of Xinjiang

为研究不同修剪强度对密植骏枣果实品质的影响,通过树形改造和密度调整试验,调查不同树形和密度下枣吊、产量及果实品质特征。结果表明,高强度修剪后的单轴主干树形,木质化枣吊的单果重和果实纵横径均较大,单株个体结果能力很强。疏散分层树形的木质化枣吊和脱落性枣吊的单果重均较小,纵横径较大,果实较空不饱满,干物质积累不够,品质下降。新疆成龄枣园经过高强度的修剪,将原有的高密度、疏散分层树形种植,变成株行距为1 m×4 m宽行距、单轴主干性树形种植模式,能显著增强通风透光性,提高了果实品质和等级,提升了抵御市场急剧变化的能力。

To study the effect of pruning intensity on fruit yield and quality of close planting Jun-jujube from south of Xinjiang,it investigated bearing branch,fruit yield and the character of quality under different tree forms and plant density regulation.Experimental result indicated it was weightier and the bigger for weight of single fruit and fruit size of ligniform bearing branch in uniaxial trunk tree after high-duty clip,it was strong ability of individual plant bearing capacity,however,it was lighter and the bigger for weight of single fruit and fruit size with ligniform bearing branch and deciduous bearing branch in evacuation hierarchical tree,the satiation index was of deteriorating quality,it was insufficient of the dry matter accumulation and declined in fruit quality.When it turned high density plantings and evacuation hierarchical tree into planting pattern of planting space 1 m×4 m planting space and uniaxial trunk tree,it could enhance the wind ventilation and improve fruit quality and grade,strengthen ability which resisted dramatic changes of marketplace.