EFFECTS OF GRAFTING ON FLOWERING, FRUITING AND FRUIT QUALITY OF 'SWEET 16' WATERMELON (CITRULLUS LANATUS THUNB.)

S.B. Villocino, Jr., M.A. Quevedo
Grafting technique is increasingly used in vegetable production to improve resistance to adverse soil conditions and increase yield and quality. This study investigated the effects of grafting watermelon ‘Sweet 16’ (Citrullus lanatus) onto rootstock of either squash ‘Suprema’ (Cucurbita maxima) or bottle gourd ‘Tambuli’ (Lagenaria siceraria). Grafted watermelons produced considerable number of hermaphrodite flowers; this was absent in ungrafted watermelons. However, grafting reduced fruit yield, particularly when bottle gourd was used as rootstock. This was attributed to partial blocking of water, nutrients, and other growth factors across the callus bridge at the graft union. Fruit from grafted plants had much higher total soluble solids (TSS) content than those from ungrafted plants. Squash was a better rootstock than bottle gourd in increasing TSS content. TSS correlated with sensory sweetness.
Villocino, Jr., S.B. and Quevedo, M.A. (2015). EFFECTS OF GRAFTING ON FLOWERING, FRUITING AND FRUIT QUALITY OF 'SWEET 16' WATERMELON (CITRULLUS LANATUS THUNB.). Acta Hortic. 1088, 469-472
DOI: 10.17660/ActaHortic.2015.1088.84
https://doi.org/10.17660/ActaHortic.2015.1088.84
grafting, bottle gourd, squash, flowering, fruit development
English

Acta Horticulturae