Document Type : Original Article
Authors
1
Assistant Professor, Seed and Plant Improvement Research Department, West Azarbaijan Agricultural and Natural Resources Research and Education Center, AREEO, Urmia, Iran.
2
Assistant Professor, Tea Research Center, Horticultural Sciences Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Lahijan, Iran.
3
Associate Professor, Temperate Fruits Research Center, Horticultural Sciences Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran.
10.30466/rip.2022.52956.1128
Abstract
The present study was conducted to investigate the rooting of cuttings of Iranian pear species. These species can be used as rootstock for commercial pear cultivars. Basal and terminal cuttings of Pyrus syriaca, P. salicifolia, P. glabra of two genotypes of Guja Khoja pear named LG1461 and LG1462 of P.communis species and Pyrodwarf were treated with 0, 2000, 400 and 6000 ppm IBA for 10 sec. The experiment was performed as a factorial based on completely randomized design with three replications. Genotypes, phytohormone concentration, cutting type were the treatments. The results indicated that the most and least percentage of callus cuttings with 85.8% and 58.3% were observed in Khoj LG1462 and P. glabra, respectively. The most callus formation and rooting rate were obtained by 2000 and 4000 ppm of IBA, respectively. Cutting type had no significant effect on callus formation. But terminal cutting of branch showed more rooting than basal cuttings. The highest rooting (40%) was seen in terminal cuttings of Pyrodwarf rootstock with 4000 ppm of IBA. In other species, the highest rooting in cuttings (20%) was observed in terminal cutting of P. salicifolia with 6000 ppm of IBA and P. syriaca with 6000 and 4000 ppm of IBA.
Keywords
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