The RS 841 rootstock is a specialized pumpkin variety used as a base for grafting various summer vegetables, including watermelon, melon, and cucumber. Thanks to its strong root system, it ensures earlier growth and fruiting even at relatively low soil temperatures (from +8 °C), making it particularly valuable in regions with a moderate climate.
The versatility of RS 841 is manifested not only in improved resistance of grafted plants to unfavorable conditions but also in increased yield. When grafting watermelon onto pumpkin, the root layer gains access to deeper soil layers, which facilitates better uptake of water and nutrients. This accelerates stem growth, improves fruit development, and allows them to reach maturity faster.
Grafting technique using the RS 841 rootstock includes two main methods: budding at the growth point and grafting onto a cleft. In the first case, the bud is inserted into a small hole in the stem, while in the second, incisions at a 45° angle are joined and secured with clips. After the plants fuse, they are placed in a growing chamber where optimal humidity and temperature are maintained. This approach achieves a high degree of survival and disease resistance.
The RS 841 rootstock is also suitable for grafting cucumbers and melons, although survival may be less stable with melons. In any case, using this rootstock helps reduce the time to the first harvest: instead of 5–14 years from seeds, a tree from a grafted plant begins bearing fruit after just 2–3 years.
Care for grafted plants includes regular fertilization with sulfur and potassium, which supports active root system growth and improves harvest quality. Thanks to the combination of high resistance, rapid development, and simplicity of grafting technique, the RS 841 rootstock becomes an indispensable tool for farmers aiming to increase the efficiency of summer vegetable production.
