Submersion of grape rootstock 41B cuttings in water increase root formation

Abstract

Grape rootstocks originated from different Vitis sp. have become the part of grape growing all over the world due to their superior characteristics against biotic and a biotic stress factors. However, not all the rootstocks have all the desirable traits. Some are of varying degree of resistance to phylloxera, nematodes or grow poorly in lime or calcareous soils. Some even exerts its growth habit onto the scion, forcing it to mature early or late in the season. In plant propagation, the most common problem encountered is for some rootstocks to root poorly. Rootstocks such as 41 B, 99 R, 140 Ru, 420 A, Dog Ridge, and Ramsey have been known to root unsatisfactorily. Different ways to induce rooting in grape rootstocks have been tried with varying success. The factors studied include plant growth regulators, hot water treatment (Ophel et al., 12), Crocker et al. (2), and Waite and May (14), a combination of these treatments Keeley et al. (9).