Abstract Grafting is a common practice used in tomato to control soil pathogen problems, confer tolerance against abiotic stresses and, when possible, increase yield. The objective of this study was to evaluate the grafting development and interaction of a commercial tomato cultivar (cv. Giuliana) grafted onto the S. lycopersicum var. cerasiforme genotype RVTC-66, and self-grafted, with four acclimation environments after grafting (three plant growth chambers with 23/18, 25/20 and 28/23 °C in day/night; and a healing chamber with mean temperature of 23.2 °C ± 0.28), and using the cleft and approach grafting methods. Additionally, the effect of the RVTC-66 rootstock using both grafting methods on the photosynthetic efficiency and production of Giuliana cultivar grafted was also evaluated. Survival of grafted plants, plant height, number of leaves, foliar area, stem dry matter and leaf dry matter had significant interaction between acclimation environment and grafting methods. The plant growth chamber (25/20 °C) and healing chamber (mean 23.2 °C) favored the healing of the grafted (with survival of grafted of > 97.50%) and seedling development. Approach grafting method was favorable only to the plant growth chamber with temperatures of 25/20 and 28/23 °C (day/night). The cleft grafting method combined with the acclimation of seedlings in healing chamber (mean 23.2 °C) improved survival and development of seedling shoots. Grafting methods had no influence in photosynthetic efficiency and production of Giuliana tomato cultivar grafted onto RVTC-66. In contrast, the RVTC-66 rootstock provided an increase in seedling root development, photosynthetic efficiency and fruit production of grafted tomato plants.

中文翻译：

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驯化环境、嫁接方式及砧木RVTC-66对番茄幼苗发育和生产的影响

摘要 嫁接是番茄的常见做法，用于控制土壤病原体问题，赋予对非生物胁迫的耐受性，并在可能的情况下提高产量。本研究的目的是评估嫁接在 S. lycopersicum var. 上的商业番茄品种 (cv. Giuliana) 的嫁接发展和相互作用。cerasiforme 基因型 RVTC-66，自嫁接，嫁接后具有四种适应环境（三个植物生长室，白天/黑夜温度为 23/18、25/20 和 28/23 °C；愈合室平均温度为 23.2 °C ± 0.28)，并使用裂口和接枝方法。此外，还评估了使用两种嫁接方法的 RVTC-66 砧木对嫁接的 Giuliana 品种的光合效率和产量的影响。嫁接植株的存活率、株高、叶数、叶面积、茎干物质和叶片干物质在驯化环境和嫁接方式之间具有显着的交互作用。植物生长室 (25/20 °C) 和愈合室 (平均 23.2 °C) 有利于嫁接愈合（嫁接存活率 > 97.50%）和幼苗发育。接近嫁接方法仅对温度为 25/20 和 28/23 °C（白天/黑夜）的植物生长室有利。裂口嫁接法与幼苗在愈合室（平均 23.2 °C）中的驯化相结合，提高了幼苗芽的存活和发育。嫁接方法对嫁接在RVTC-66上的朱利亚纳番茄品种的光合效率和产量没有影响。相比之下，RVTC-66 砧木可促进幼苗根系发育，