Comprehensive Mineral Nutrition Analysis of Watermelon Grafted onto Two Different Rootstocks
Comprehensive Mineral Nutrition Analysis of Watermelon Grafted onto Two Different Rootstocks
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两种不同砧木嫁接西瓜的综合矿物质营养分析
DOI：
10.1016/j.hpj.2016.06.003
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发表时间：
2016-03-01
影响因子：
5.7
通讯作者：
Bie Zhilong
中科院分区：
文献类型：
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作者：
Huang Yuan;Zhao Liqiang;Bie Zhilong
嫁接是一种广泛应用于水果蔬菜的做法。然而，为什么嫁接会影响植物生长、果实产量和品质，特别是从矿物质营养的角度来看，目前还不清楚。以西瓜品种枣家8424为材料，嫁接葫芦京心镇1号（Lagenaria siceraria）和南瓜青烟镇1号（Cucurbita maxima x C. moschata）。以未嫁接植株为对照。结果表明，砧木嫁接能显著提高西瓜植株生长和单果重。嫁接西瓜，尤其是南瓜，其根体积、根表面积、根尖和根叉数量均显著高于未嫁接植株。嫁接后的果实果肉、果皮硬度和果皮厚度均有所提高。然而，嫁接到南瓜上的果实可溶性固形物和味道显著降低。总吸收量(mg。植株（-1）和浓度(mg。嫁接植株根、茎、叶、果皮和果肉中N、K、Ca、Fe、Mg、Mn的g(-1) DW值普遍高于未嫁接植株，尤其是嫁接南瓜根茎植株的N值。嫁接在葫芦和南瓜上的植株在果实发育阶段和成熟阶段的总养分吸收量分别比未嫁接植株增加30.41%和49.14%和21.33%和47.46%。结果表明，西瓜嫁接在合适的砧木上可以增加嫁接植株对矿质营养的吸收，尤其是对氮的吸收，从而影响植株生长和果实产量。和质量。
Grafting is a widely used practice in fruit-bearing vegetables. However, why grafting affects plant growth, fruit yield, and quality, especially from the aspect of mineral nutrition, remains unclear. In this study, watermelon cultivar 'Zaojia 8424' was grafted onto bottle gourd 'Jingxinzhen 1' (Lagenaria siceraria) and pumpkin 'Qingyanzhen 1' (Cucurbita maxima x C. moschata). Non-grafted plants were used as the control. Results show that rootstock grafting significantly increases plant growth and single fruit weight of watermelon. Watermelon grafted onto rootstocks, especially pumpkin, exhibits significantly higher root volume, root surface area, and number of root tips and forks in comparison with non-grafted plants. Fruit flesh, rind firmness, and rind thickness were enhanced by grafting. However, fruit soluble solids and taste significantly decreased in plants grafted onto pumpkin. The total uptake (mg . plant( -1)) and concentration (mg . g(-1) DW) of N, K, Ca, Fe, Mg, and Mn in root, stem, leaf, fruit rind, and flesh were generally higher in grafted plants compared to non-grafted ones, especially for N of pumpkin rootstock-grafted plants. The total uptake of nutrients of plants grafted onto bottle gourd and pumpkin was increased by 30.41% and 49.14% at fruit development stage and by 21.33% and 47.46% at fruit maturation stage, respectively, compared with non-grafted plants. We concluded that watermelon grafting onto suitable rootstocks can increase the uptake of mineral nutrition, especially for N in the pumpkin rootstock grafted plants, thereby affecting plant growth, fruit yield. and quality.