Effects of Solanum torvum Rootstock Grafting on Growth, Yield and Fruit Quality of Tomato Plants
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摘要:
目的 以茄子为砧木嫁接番茄,综合评价茄砧嫁接对番茄生长、产量及品质的影响,进一步明确茄砧嫁接栽培的生物学效应,为该技术的应用提供理论依据。 方法 以托鲁巴姆为砧木,金棚9号为接穗,自根苗为对照,通过蛭石栽培方式,研究茄砧嫁接对番茄生长、产量、肥水利用率和品质的影响。 结果 嫁接后番茄植株的株高降低,叶片数减少,植株根、茎干鲜重降低,根冠比增加,植株光合色素含量增加,根系活力增强,单果重、单株结果数、单株产量降低;嫁接后增加了果实中Vc、可溶性糖含量,降低了可滴定酸,提高了糖酸比;可溶性固形物、番茄红素含量自根苗和嫁接苗无显著差异;嫁接后,降低了植株耗水量和矿质元素的吸收量,提高了水分和矿质元素的利用率。 结论 综合生长、产量、品质等指标,托鲁巴姆嫁接有助于番茄果实品质的提高,在嫁接栽培方面有一定利用价值。 Abstract:Objective Grafting tomato scions on rootstocks of eggplant (Solanum torvum) was evaluated for its applicability. Method Plant growth, tomato yield and quality as well as fertilizer and water utilization of the seedlings grown on meteorite in a greenhouse from the Jinpeng No. 9 scions grafted on eggplant rootstocks were compared with those from the scions grafted on rootstocks of same variety (control). Result The S. torvum rootstock grafting retarded the plant height, leaf generation and weight gains on roots and stems of the grafted tomato seedlings but increased the root to shoot ratio, chlorophyll content and root activity. The individual weight, number per plant and yield per plant of the tomatoes decreased. The contents of Vc, soluble sugars and sugar/acid ratio of the fruits increased, while titratable acid decreased. No significant difference on the soluble solids and lycopene contents were observed between the seedlings grafted on S. torvum rootstocks and control. The water consumption and mineral absorption of the plants grafted on S. torvum rootstocks were less than those of control. Conclusion Overall, the growth, yield, quality and other indicators suggested that grafting tomato scions on S. torvum rootstocks would be suitable for application. -
Key words:
- tomato /
- Solanum torvum /
- grafting /
- growth /
- yield /
- fruit quality
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表 1 托鲁巴姆嫁接对番茄株高和叶片数的影响
Table 1. Effects of S. torvum rootstock grafting on plant height and leaf count of tomato plants
测定项目
Item处理
Treatment定植天数Time 10 d 17 d 24 d 31 d 38 d 45 d 株高
Plant height/cmCK 21.9±0.88a 37.9±1.79a 56.1±2.14a 80.1±5.36a 98.7±5.11a 116.8±5.08a T1 22.3±1.25a 32.8±1.39b 46.6±2.45b 66.6±2.91b 83.2±2.22b 99.8±3.62b 叶片数
Leaf numberCK 6.7±0.48a 9.5±0.52a 12.5±0.50ab 15.2±0.63a 18.1±0.94a 20.6±0.66a T1 6.5±0.53a 9.1±0.74a 12±0.44b 14.1±0.71b 16.6±0.49b 18.5±0.50b 注:同列数值不同字母表示差异显著水平达0.05。表 2~8同。
Note:Statistical analysis was conducted using Duncan's of SAS software. Different letters within a same column indicate significant difference at 0.05 level. The same as table 2-8.表 2 托鲁巴姆嫁接对番茄植株干鲜重的影响
Table 2. Effects of S. torvum rootstock grafting on fresh and dry weights of tomato plants
处理
Trea-tmen地上部Shoot 地下部Root 根冠比
Root-shoot ratio鲜重
Fresh weight/(g·plant-1)干重
Dry weight/(g·plant -1)干物率
DM percentage/%鲜重
Fresh weight/(g·plant-1)干重
Dry weigh/(g·plant-1)干物率
DM percentage/%Ck 731.5±7.05a 81.6±1.78a 11.2±0.01b 14.5±0.85a 2.0±0.12a 13.9±0.32b 0.021±0.0017b T1 344.1±8.08b 46.6±0.45b 13.6±0.02a 9.9±0.33b 1.9±0.08a 19.4±0.28a 0.041±0.0038a 表 3 托鲁巴姆嫁接对番茄光合色素含量和根系活力的影响
Table 3. Effects of S. torvum rootstock grafting on photosynthetic pigment content in leaves and root vigor of tomato plants
处理
Treatment叶绿素a
Chlorophylla/(mg·g-1)叶绿素b
Chlorophyllb/(mg·g-1)叶绿素总量
Total chlorophyll/(mg·g-1)类胡萝卜素
Carotenoid/(mg·g-1)根系活力
Root vigor/(μg·g-1·h-1)CK 1.950±0.069a 0.767±0.037a 2.717±0.011a 0.294±0.016b 37.63±3.584b T1 1.944±0.046a 0.729±0.032a 2.673±0.010a 0.319±0.077a 60.42±1.41a 表 4 托鲁巴姆嫁接对番茄单果重和单株产量的影响
Table 4. Effects of S. torvum rootstock grafting on fruit weight and yield per plant of tomato plants
处理
Treatment单果重
Fruit weight /g单株结果数
Fruit number per plant单株产量
Yield per plant/kg每667m2产量
Yield per 667m2/kgCK 229.4±0.02a 11.9±0.12a 2.73±0.10a 8201.3±301.30a T1 173.5±0.03b 11.1±0.76a 1.92±0.08b 5744.9±242.76b 表 5 托鲁巴姆嫁接对番茄水分利用率的影响
Table 5. Effect of S. torvum rootstock grafting on water utilization of tomato plants
处理
Treatment单株耗水量
Water consumption/(m3·plant-1)单株产量
Yield per plant/(kg·plant-1)水分利用率
Water use efficiency/(kg·m-3)CK 0.0866±0.001a 2.73±0.10a 31.6±0.23a T1 0.0551±0.002b 1.92±0.08b 34.8±0.31a 表 6 托鲁巴姆嫁接对番茄植株矿质元素吸收量的影响
Table 6. Effect of S. torvum rootstock grafting on mineral absorption of tomato plants
处理
Treatment矿质元素吸收量Absorption of mineral elements/(g·plant-1) N P K Ca Mg CK 9.82±0.43a 3.22±0.86a 16.21±0.97a 6.74±0.43a 3.52±0.32a T1 5.92±0.13b 2.22±0.30b 10.74±0.65b 4.05±0.56b 1.95±0.31b 表 7 托鲁巴姆嫁接对番茄矿质元素利用率的影响
Table 7. Effect of S. torvum rootstock grafting on mineral utilization of tomato plants
处理
Treatment矿质元素利用率Mineral element use efficiency/ (kg·g-1) N P K Ca Mg CK 0.279±0.018b 0.851±0.048a 0.169±0.011a 0.407±0.019b 0.779±0.056b T1 0.324±0.014a 0.864±0.029a 0.178±0.003a 0.473±0.041a 0.984±0.019a 表 8 托鲁巴姆嫁接对番茄果实营养品质的影响
Table 8. Effect of S. torvum rootstock grafting on nutritional quality of tomatoes
处理
Treatment可溶性固形物
Soluble solid/%Vc/(mg·hg-1FW) 可溶性糖
Soluble sugar/(g·hg-1FW)可滴定酸
Titratable acid/(g·hg-1FW)糖酸比
Sugar-acid ratio番茄红素
Lycopene/(mg·hg-1FW)CK 4.667±0.31a 23.60±0.70b 2.65±0.045b 0.3567±0.047a 7.514±0.86a 5.34±0.41a T1 4.993±0.57a 27.23±0.40a 2.89±0.087a 0.3333±0.021a 8.704±0.65a 5.46±0.82a -
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