PRELIMINARY RESULTS OF PEACH ROOTSTOCK TESTING
We have evaluated the influence of eleven different peach rootstocks (GF 677 as a standard, peach seedling, Monegro, Barrier, Cadaman, Adesoto, Mrs 2/5, Julior, Isthara, Penta, Tetra) planted in medium-heavy to heavy soil on the phenological events (blooming and harvest date), growth, and yield of the Redhaven planted in 2005 and observed in 2008. The different peach rootstocks had no influence on the phenological events blooming and harvest date. The weakest rootstocks were Isthara and Tetra, which showed a statistically significant difference from Julior, Adesoto, Mrs 2/5, Monegro, Barrier and Cadaman. The most vigorous rootstocks were Cadaman, Barrier and Monegro, which showed a statistically significant difference from Isthara, Tetra, peach seedling, Penta and GF 677. According to girth, we can divide the rootstocks into the weak ones Isthara and Tetra; the semi-vigorous ones peach seedling, Penta, GF 677, Julior, Adesoto, Mrs 2/5; and the vigorous ones, Monegro, Barrier and Cadaman. In the case of Adesoto, Mrs 2/5, Barrier and Cadaman rootstocks the yield of fruit per tree was significantly greater than for other rootstocks. Trees grafted on peach seedling had a yield of less than 15 t/ha, while more than 20 t/ha were achieved on Mrs 2/5, Cadaman, Adesoto, Penta, Barrier and Isthara. All these rootstocks (Mrs 2/5, Cadaman, Adesoto, Penta, Barrier and Isthara) also had a higher yield per tree than the standard rootstock GF 677. The Monegro, peach seedling, Cadaman and Barrier rootstocks had a yield efficiency of between 0.4 and 0.6 kg/cm2 of TCSA (trunk cross section area). The highest yield efficiency (more than 0.8 kg/cm2 of TCSA) occurred in the Penta, GF 677 and Isthara rootstocks. The other rootstocks had a yield efficiency of between 0.6 and 0.8 kg/cm2 of TCSA.
Hudina, M., Fajt, N. and Stampar, F. (2012). PRELIMINARY RESULTS OF PEACH ROOTSTOCK TESTING. Acta Hortic. 962, 605-611
peach, Prunus persica, rootstock, growth, yield