论文部分内容阅读
【目的】分析南疆盆地盛果期新新2号(Juglans regia‘Xinxin2’)核桃生产园,疏散分层形树形冠内坚果产量及其物理品质在垂直空间和水平空间上的分布,了解冠内坚果产量与物理品质的格局状况,以期为南疆盆地盛果期核桃的整形修剪提供科学依据。【方法】采用等体积(50 cm×50 cm×50 cm)树冠立体分隔法,在果实成熟期采集并测定树冠上层、中层、下层和内膛、中部、外围的坚果产量和物理品质。【结果】树冠单位体积坚果产量为上层>中层>下层,且上层与下层之间的差异达到了显著水平(P<0.05)。坚果的三径平均值、单果重、仁重为上层>中层>下层,且上层与下层之间坚果的三径平均值、单果重存在显著差异(P<0.05);果形指数为下层>上层>中层、内膛>中部=外围,且下层与中层之间存在显著差异(P<0.05)、内膛与中部和外围之间的差异达到了极显著水平(P<0.01);出仁率为外围极显著高于中部和内膛(P<0.01);不饱满果率为上层显著高于中、下层(P<0.05),内膛与中部和外围之间的差异达到了极显著水平(P<0.01)。【结论】南疆盆地新新2号核桃疏散分层形树形树冠上层单位体积坚果产量最高,其饱满坚果的物理品质最好,不饱满果率树冠内膛最高,其次是树冠上层。南疆盆地核桃整形修剪中应通过采取开角、疏枝等措施来改善树冠内光照条件以达到提质增产。
【Objective】 The purpose of this study was to analyze the distribution of vertical and horizontal spatial distribution of the yield and physical quality of the deciduous canopy crown in Juglans regia’Xinxin2 ’walnut garden in southern Xinjiang Basin. Crown within the nut production and physical quality of the situation, with a view to the southern Xinjiang Basin fruit walnut plastic trim pruning provide a scientific basis. 【Method】 The yield and physical quality of the nuts in the upper, middle, lower and inner, middle and periphery of the canopy were measured and collected at the mature stage of the tree by means of a three-dimensional canopy separation method with the same volume (50 cm × 50 cm × 50 cm). 【Result】 The results showed that the yield per unit volume of canopy reached the level of upper> middle> lower, and the difference between upper and lower reaches reached significant level (P <0.05). The results showed that the mean value of three diameters of nuts, weight of single fruit and kernel weight were the mean value of the upper middle> the middle> the lower, and there was a significant difference (P <0.05) (P <0.05). The difference between the middle part and middle part and the periphery reached the extremely significant level (P <0.01). The percentage of kernels was (P <0.01). The rate of under-full fruit was significantly higher in the upper layer than in the middle and lower layers (P <0.05), and the difference between the middle part and the middle part of the inner bore reached an extremely significant level (P <0.01) <0.01). 【Conclusion】 The results showed that the yield per unit area of the top layer of tree branches was the highest in Xinhua No.2 in walnut trees in southern Xinjiang Basin. The full-bodied nut had the highest physical quality, the highest full-bodied canopy crown, followed by the canopy. In southern Xinjiang basin walnut plastic trimming should adopt open angle, thinning and other measures to improve the lighting conditions within the canopy in order to achieve quality improvement yield.