Detailed Explanation of the Key Technical Points of the Watermelon Top Insertion Grafting Method

(Agricultural Wealth Network) For the top insertion grafting method, the rootstock should be sown earlier than the scion. The suitable period for grafting is when the first true leaf of the rootstock seedling appears and unfolds, while the scion seedling is best at the cotyledon unfolding stage. The tools used for top insertion grafting are a bamboo skewer and a safety razor blade. When grafting, first use the blade to cut off the first true leaf and growing point of the rootstock from the base, and use the bamboo skewer to pierce diagonally a hole 0.5 to 1 cm deep at the cut on the upper part of the rootstock. Then cut downward through the epidermis of the hypocotyl of the scion seedling 1 cm below the cotyledons, turn the scion over and make a second diagonal cut from the back side to remove the root of the scion, so that the cut surface of the scion forms a wedge shape. Quickly insert the prepared scion seedling into the hole in the rootstock seedling, pressing it as closely as possible against the area around the rootstock cut.