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A New Grafting Method for Watermelon to Inhibit Rootstock Regrowth and Enhance Scion Growth

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  • Changjin Liu

    (College of Horticulture and Forestry Sciences/Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China)

  • Weiguo Lin

    (College of Engineering, Huazhong Agricultural University, Wuhan 430070, China)

  • Chongran Feng

    (College of Horticulture and Forestry Sciences/Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China)

  • Xiangshuai Wu

    (College of Horticulture and Forestry Sciences/Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China)

  • Xiaohu Fu

    (College of Engineering, Huazhong Agricultural University, Wuhan 430070, China)

  • Mu Xiong

    (College of Horticulture and Forestry Sciences/Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China)

  • Zhilong Bie

    (College of Horticulture and Forestry Sciences/Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China)

  • Yuan Huang

    (College of Horticulture and Forestry Sciences/Key Laboratory of Horticultural Plant Biology, Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China
    Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518000, China.)

Abstract

Grafting is a widely used technique in watermelon ( Citrullus lanatus ) production. However, cost of grafted seedlings is generally high as a result of intensive labor inputs for propagation using traditional grafting methods such as the manual removal of rootstock regrowth. This study developed a new grafting tool to physically remove the epidermis of pumpkin ( C. maxima × C. moschata ) and bottle gourd ( Lagenaria siceraria ) rootstock cotyledon base during grafting; we called this a new grafting method. Compared with the traditional grafting, the new grafting method significantly decreased the pumpkin rootstock regrowth rate from 100% to 8% in hole insertion and 2% in one cotyledon grafting, respectively. These attenuated rates for bottle gourd rootstock regrowth were 23% and 9% in hole insertion and one cotyledon grafting, respectively. The scion dry weights of new hole insertion and one cotyledon grafting were increased by 78% and 74% when pumpkin was used as rootstock as compared with traditional grafting without regrown rootstock removal, while the respective values were 33% and 17% in bottle gourd rootstock grafted plants. In addition, the time used for the new hole insertion grafting method to physically remove the epidermis of pumpkin rootstock cotyledon base was significantly shorter than the time required to remove the rootstock regrowth manually three times in the traditional grafting (4.2 s/plant vs. 9.3 s/plant). Similar results were also observed in the new one cotyledon grafting (4.2 s/plant vs. 8.8 s/plant). Taken together, this study presents a new method in watermelon grafting to reduce rootstock regrowth, therefore benefiting both scion growth and plant management, thus the development of this new method is clearly useful in watermelon production.

Suggested Citation

  • Changjin Liu & Weiguo Lin & Chongran Feng & Xiangshuai Wu & Xiaohu Fu & Mu Xiong & Zhilong Bie & Yuan Huang, 2021. "A New Grafting Method for Watermelon to Inhibit Rootstock Regrowth and Enhance Scion Growth," Agriculture, MDPI, vol. 11(9), pages 1-13, August.
  • Handle: RePEc:gam:jagris:v:11:y:2021:i:9:p:812-:d:622866
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    References listed on IDEAS

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    1. Filippos Bantis & Athanasios Koukounaras & Anastasios S. Siomos & Christodoulos Dangitsis, 2020. "Impact of Scion and Rootstock Seedling Quality Selection on the Vigor of Watermelon–Interspecific Squash Grafted Seedlings," Agriculture, MDPI, vol. 10(8), pages 1-10, August.
    2. Yavuz, Duran & Seymen, Musa & Süheri, Sinan & Yavuz, Nurcan & Türkmen, Önder & Kurtar, Ertan Sait, 2020. "How do rootstocks of citron watermelon (Citrullus lanatus var. citroides) affect the yield and quality of watermelon under deficit irrigation?," Agricultural Water Management, Elsevier, vol. 241(C).
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    Cited by:

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    2. Pengyun Xu & Tong Zhang & Liping Chen & Wenqian Huang & Kai Jiang, 2022. "Study on the Method of Matched Splice Grafting for Melon Seedlings Based on Visual Image," Agriculture, MDPI, vol. 12(7), pages 1-16, June.
    3. Kai Jiang & Wenzhong Guo & Liping Chen & Wenqian Huang & Yiyuan Ge & Xiaoming Wei, 2022. "Design and Experiment of Automatic Clip-Feeding Mechanism for Vegetable-Grafting Robot," Agriculture, MDPI, vol. 12(3), pages 1-16, February.

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