Study on Cold Tolerance of Different Rootstocks of Melon Seedlings

Abstract

The higher compatibility rootstocks of melon were selected and the influence of different rootstocks on increasing the cold resistance of grafted melon seedlings was investigated. The influence of different rootstocks on chilling tolerance of grafted melon seedlings and its physiological mechanisms were studied, including chilling injury index, content of chlorophyll, MDA, and electrolytic leakage under the different temperature (13°C/8°C, 9°C/4°C, 25°C/15°C) conditions. At the same time, Pumpkin ‘Japanese Cedar F1’, ‘Japanese Developed Root Sprouts Wood’, ‘Alam’ was used as rootstock for melon ‘Haojie 6’ in this experiment, and the own-root seedling was used as control. The results showed that Pumpkin ‘Alam’ used as rootstock material could improve the survival rate of grafted seedlings and the chilling tolerance of melon seedlings significantly.

Grafting Melons Increases Yield, Extends the Harvest Season, and Prevents Sudden Wilt in New England

“…However, in much of the northeastern United States, it has not been possible to associate a particular soilborne pathogen with sudden wilt (Zitter, 1995), and environmental stresses such as cold soils, excessively hot weather, and low light intensity may exacerbate wilting (Martyn, 2007;Wien and Zitter, 2006). Vegetative grafting is a cultural technique widely adopted throughout much of Asia for more than half a century to alleviate problems with soilborne diseases and environmental constraints for growth of melon, cucumber (Cucumis sativus), and watermelon (Citrullus lanatus) (Gaion et al, 2018;Lee, 1994;Lee and Oda, 2003;Rouphael et al, 2018;Sakata et al, 2007;Wang et al, 2019), although primarily for plants grown in greenhouses and other protected structures. The most common rootstocks used in melon grafting are interspecific hybrid squash [Cucurbita maxima • C. moschata (King et al, 2010)].…”

Effect of Grafting Compatibility on Fruit Yield and Quality of Cantaloupe in a Mediterranean-Type Climate

“…Similarly, cold stress can cause wilting in addition to reduced leaf expansion and chlorosis leading to necrosis. Grafting has been used for decades in Asia and Europe to prevent biotic and abiotic-induced stresses and promote plant growth [9,10]. For example, cantaloupe grafted onto low temperature tolerant interspecific hybrid squash (Cucurbita maxima × C. moschata) rootstocks and grown at an average minimum soil temperature of 19.7 • C for a 3-week period after transplanting exhibited improved growth and less wilting than nongrafted plants [11].…”