Evaluation of some precocious sweet cherry cultivars on some Hungarian bred Mahaleb rootstocks
Ten cherry rootstocks (Bogdány, Cerasus mahaleb Cemany, Egervár, Érdi V, Korponay, Magyar, SM 11/4, P. avium C. 2493, GiSelA 6, control: INRA SL 64 rootstock) combined with early ripening sweet cherry cultivars (Petrus℗, Vera℗, Carmen℗) have been evaluated among non-irrigated conditions in Central Hungary. The trial was set up at Experimental Fields of NARIC Fruitculture Research Institute at Research Station of Érd. Aim of our study was to find suitable rootstock(s) for novel bred Hungarian sweet cherry cultivars. It can be stated after eight years investigation that Petrus℗ was the most vigorous cultivar, which is followed by Vera℗ and Carmen℗. The GiSelA 6 rootstock had low vigor among examined rootstocks and INRA SL 64 was the most vigorous in our trial. TCSA of Petrus℗ combinations grafted on SM11/4 and Bogdány was significantly bigger than on C. 2493, Egervár and GiSelA 6 rootstocks. Other rootstocks such as Érdi V, Korponay, Magyar and Cemany indicated high-moderately high vigor for Petrus℗. The GiSelA 6/Vera℗ combination had significantly smaller TCSA compared to other Vera℗ combinations. In the case of Carmen℗ rootstock Cemany showed high, Érdi V, C. 2493, Egervár, Korponay indicated medium and GiSelA 6 produced low vigor. Petrus℗ produced the biggest yield and the smallest fruit size among observed cherry cultivars. Yield of Carmen℗ grafted on Érdi V, Egervár, and GiSelA 6 was the highest but only Érdi V had a positive effect on fruit size because more than 40% of examined fruit were larger than 28.1 mm in diameter. Vera℗ yielded well on Érdi V and Egervár, the best fruit size was produced by Érdi V. On the basis of value-yield index, which was calculated by actual market price per fruit size category, Carmen℗ produced the highest income per tree on Egervár and GiSelA 6 and Vera℗ was the most valuable on Egervár, INRA SL 64, and Érdi V rootstocks.
Bujdosó, G. and Hrotkó, K. (2018). Evaluation of some precocious sweet cherry cultivars on some Hungarian bred Mahaleb rootstocks. Acta Hortic. 1228, 187-192
rootstock, growth, yield, fruit size, value-yield efficiency