BM_2026v17n1

Bioscience Methods 2026, Vol.17, No.1, 32-42 http://bioscipublisher.com/index.php/bm 40 7.3 Insights and promoting value of case analysis for production practice The above cases provide significant insights for production practice (Robinson et al., 2006). Firstly, moderately increasing the intensity of winter pruning can indeed significantly improve fruit quality, correcting the previous problem of solely pursuing yield while neglecting quality. It reminds fruit farmers to change their mindset and pay more attention to fruit quality and economic benefits. Secondly, the case demonstrates that through on-site comparison and demonstration, fruit farmers' concerns about reduced yield due to heavy pruning can be eliminated: as long as the supporting management is in place, the reduced yield from heavy pruning can be compensated for and even exceeded by the higher prices brought about by improved fruit quality (Costa et al., 2004). Therefore, in areas with the necessary conditions, similar pruning models can be demonstrated to allow more fruit farmers to see the benefits of high-quality fruits and increase their enthusiasm for adopting scientific pruning. Additionally, the case emphasizes the meticulous management of "tree-specific pruning": for plants with excessive vigor, the pruning intensity should be increased to control growth; conversely, for plants with weak vigor, light pruning should be carried out to retain fruiting branches. Such categorized measures can achieve balanced and stable production throughout the orchard. Through the publicity and training of agricultural technology promotion departments, this proven winter pruning model can be widely promoted within a larger scope, thereby improving the standardized management level of kiwifruit production. 8 Conclusions and Outlook Through the comparison of different winter pruning intensities, the following main conclusions were obtained, The intensity of winter pruning significantly affects the number and proportion of fruiting branches of kiwifruit. Heavy pruning results in fewer fruiting branches but with thicker branches, and a low proportion of fruiting branches; light pruning results in more fruiting branches but with some branches being thin and weak, and a high proportion of fruiting branches; moderate pruning results in an appropriate number and proportion of fruiting branches, with balanced distribution of branches. The intensity of winter pruning affects fruit quality by regulating the load. Heavy pruning increases the weight of individual fruits and the content of soluble solids, reduces fruit acidity, and significantly improves the appearance and intrinsic quality of the fruits; light pruning reduces the weight of individual fruits, decreases sugar content, and has poor quality; moderate pruning results in fruit quality between the two extremes. The intensity of winter pruning has an inverse relationship with yield. Heavy pruning reduces the yield of individual plants in the current year, but is beneficial for restoring tree vigor and improving subsequent stable yield; light pruning leads to significant increase in yield in the current season, but is prone to causing tree decline and uneven results in successive years; moderate pruning can achieve a higher and stable yield, achieving a balance between yield and quality. Based on the results of this study, the following application suggestions for winter pruning intensity are proposed in production practice: For commercial orchards, a moderate intensity of winter pruning is recommended to simultaneously achieve high yield and good quality. For orchards targeting the high-end fresh market, a focus on pruning for high quality can be adopted; if more emphasis is placed on yield or processing, a slightly lighter pruning can be applied while prioritizing total yield, but it is necessary to prevent excessive decline in quality that may affect profits. For orchards with weak tree vigor or insufficient yield, a slightly lighter pruning can be retain more fruiting buds and increase the fruiting volume in the next year, but it must be accompanied by flower and fruit thinning to avoid a decline in fruit quality due to excessive fruiting. In summary, the intensity of winter pruning should be flexibly adjusted according to the tree vigor,variety,and cultivation goals,and tailored to the specific tree to achieve the best balance between kiwifruit yield and quality while ensuring the health of the tree. Although this research has made certain progress, there are still some shortcomings that require further investigation. Firstly, the trial period is only one year, lacking assessment of the long-term cumulative effects of different winter pruning intensities (such as on tree vigor and the changes in annual yield over multiple years). Future studies should conduct multi-year and multi-site continuous trials to observe the long-term responses of kiwifruit tree growth and yield quality under different pruning strategies. Secondly, this research mainly focuses on yield and conventional quality indicators, lacking in-depth analysis of the impact of pruning intensity on the

RkJQdWJsaXNoZXIy MjQ4ODYzNA==