Comparative physiological and biochemical mechanisms in diploid, triploid, and tetraploid watermelon (Citrullus lanatus L.) grafted by branches
文献类型： 外文期刊
作者： Kaseb, Mohamed Omar 1 ; Umer, Muhammad Jawad 1 ; Lu, Xuqiang 1 ; He, Nan 1 ; Anees, Muhammad 1 ; El-remaly, Eman 2 ; Yousef, Ahmed Fathy 4 ; Salama, Ehab A. A. 5 ; Kalaji, Hazem M. 7 ; Liu, Wenge 1 ;
作者机构： 1.Chinese Acad Agr Sci, Zhengzhou Fruit Res Inst, Henan Joint Int Res Lab Fruits & Cucurbits Biol Sc, Zhengzhou 450009, Peoples R China
2.Agr Res Ctr, Hort Res Inst, Cross Pollenated Plants Dept, Giza 12611, Egypt
3.Chinese Acad Agr Sci ICR, Inst Cotton Res, State Key Lab Cotton Biol, CAAS, Anyang 455000, Peoples R China
4.Univ Al Azhar, Coll Agr, Dept Hort, Branch Assiut, Assiut 71524, Egypt
5.Alexandria Univ, Fac Agr Saba Basha, Agr Bot Dept, Alexandria 21531, Egypt
6.TNAU, Ctr Plant Mol Biol & Biotechnol, Dept Plant Biotechnol, Coimbatore 641003, India
7.Warsaw Univ Life Sci SGGW, Inst Biol, Dept Plant Physiol, Warsaw, Poland
8.Natl Res Inst, Inst Technol & Life Sci, Al Hrabska 3, PL-05090 Raszyn, Poland
期刊名称：SCIENTIFIC REPORTS （ 影响因子：4.6； 五年影响因子：4.9 ）
ISSN： 2045-2322
年卷期： 2023 年 13 卷 1 期
页码：
收录情况： SCI
摘要： Seed production for polyploid watermelons is costly, complex, and labor-intensive. Tetraploid and triploid plants produce fewer seeds/fruit, and triploid embryos have a harder seed coat and are generally weaker than diploid seeds. In this study, we propagated tetraploid and triploid watermelons by grafting cuttings onto gourd rootstock (C. maxima x C. mochata). We used three different scions: the apical meristem (AM), one-node (1N), and two-node (2N) branches of diploid, triploid, and tetraploid watermelon plants. We then evaluated the effects of grafting on plant survival, some biochemical traits, oxidants, antioxidants, and hormone levels at different time points. We found significant differences between the polyploid watermelons when the 1N was used as a scion. Tetraploid watermelons had the highest survival rates and the highest levels of hormones, carbohydrates, and antioxidant activity compared to diploid watermelons, which may explain the high compatibility of tetraploid watermelons and the deterioration of the graft zone in diploid watermelons. Our results show that hormone production and enzyme activity with high carbohydrate content, particularly in the 2-3 days after transplantation, contribute to a high survival rate. Sugar application resulted in increased carbohydrate accumulation in the grafted combination. This study also presents an alternative and cost-effective approach to producing more tetraploid and triploid watermelon plants for breeding and seed production by using branches as sprouts.
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