Abstract

HADAD, Mohammad Mehdi; JAFARPOUR, Mehrdad  and  ASKARI-KHORASGANI, Omid. Performance of european pear ‘Shahmiveh’ grafted onto different rootstocks. Rev. Chapingo Ser.Hortic [online]. 2016, vol.22, n.1, pp.59-68. ISSN 2007-4034.  https://doi.org/10.5154/r.rchsh.2015.09.022.

Scion-rootstock selection plays an important role in determining orchard performance. Pyrus communis and Cydonia oblonga are the most widely cultivated rootstocks for European pear cultivars. The lack of rootstocks adapted to different edaphoclimatic conditions and scion cultivars is widely acknowledged in pear culture. Hence, this study was designed to investigate the growth characteristics and performance of the ‘Shahmiveh’ pear grafted onto six rootstocks including Quince A, B, C, BA29, ‘Konjoni’, and generative seedling. The experiment was conducted during two consecutive years, 2013-2014, at the Agricultural Research Center of Kabutarabad, Isfahan, Iran. The experimental design was based on a randomized complete block design including three replications of six trees each. The assessed variables were trunk diameter, current season shoot length, tree height, leaf dimensions, the number of flowers and abscised flowers, and also the number and percentage of fruit set. Cumulative data from a 7- to 8-year-old pear orchard showed that rootstock selection markedly influenced trunk diameters, current season shoot growth, leaf length, and fruit set of the endemic ‘Shahmiveh’ pear. The largest trunk diameters were obtained from the ‘Konjuni’ rootstock, whereas the highest current season shoot length was observed on the generative seedling. PQBA29 exhibited the largest leaf length, number of fruits per current season shoot, and percentage of fruit set, whereas Q. A rootstock had the second highest cropping efficiency. This experiment demonstrates the significantly higher performance and compatibility of PQBA29 as a rootstock for endemic ‘Shahmiveh’ pear in the arid condition of Iran.

Keywords : arid; endemic pear; yield efficiency; ‘Shahmiveh’; rootstock.

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