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An Experimental Study on the Effect of Cutting Angle on the Growth of Grafted Watermelon Seedlings Using the One-Cotyledon Grafting Method

文献类型： 外文期刊

作者： Liang, Huan 1 ; Jiang, Kai 2 ; Shi, Xianfeng 1 ; Zhu, Juhong 1 ; Liu, Jiangfeng 1 ; Wang, Dehuan 1 ; Ge, Mihong 1 ; Zhou, Mobing 1 ; Shan, Feifei 2 ;

作者机构： 1.Wuhan Acad Agr Sci, Wuhan 430070, Peoples R China

2.Beijing Acad Agr & Forestry Sci, Res Ctr Intelligent Equipment, Beijing 100097, Peoples R China

3.Natl Engn Res Ctr Intelligent Equipment Agr NERCIT, Beijing 100097, Peoples R China

关键词： watermelon; one-cotyledon grafting; cutting angle; survival rate; grafting robot; healing

期刊名称：AGRONOMY-BASEL （ 影响因子：3.7； 五年影响因子：4.0 ）

ISSN：

年卷期： 2023 年 13 卷 1 期

页码：

收录情况： SCI

摘要： The labor-efficient automation of grafting has been recognized as a key factor in the wider adoption of grafting. In growing cucurbits, the root pruned one-cotyledon grafting method is the most commonly used method with grafting machines. The cutting angle, which affects the matching of the rootstock and scion, is key to the survival of the graft seedling. In the production of cucurbit graft seedlings, the cutting parameters are established based on experience, leading to low grafting success. To determine accurate cutting parameters, the watermelon cv. 'Zaojia84-24 ' was used as the scion and the pumpkin cv. 'Zhenzhuang' was used as rootstock, and two one-way experiments investigating the cutting angle of the watermelon scion and the rootstock as factors were conducted. The cutting angle of the rootstock and scion had no significant effect on the xylem reconnection rate or the grafting survival rate. A larger cutting angle for the rootstock and scion led to a delay in the reconnection of the phloem. Different cutting angles for the scion significantly affected the growth of the scion after grafting. Compared with a scion graft cutting angle of 10 degrees (SL), graft cutting angles of 14 degrees (SM) and 20 degrees (SS) led to significantly greater scion dry weights, with increases of 16.00% and 18.61%, respectively. Different cutting angles of the rootstock significantly affected the growth of roots after grafting. Compared with a rootstock graft cutting angle of 10 degrees (RL), graft cutting angles of 17 degrees (RM) and 27 degrees (RS) led to significantly greater root dry weights, with increases of 29.33% and 22.54%, respectively. The results of this study can provide a reference for the design of cutting mechanisms for cucurbit grafting robots, improving the cutting precision of grafting robots.

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