Effect of Irrigation Rates and Cultivar-Rootstock Combination on Water Potential of Apple Tree
Keywords:
apple; irrigation; rootstocks; water stressAbstract
The study was carried out in Institute of Agricultural, Kyustendil, Bulgaria during 2010 – 2011 with apple cultivars Florina and Freedom grafted on two rootstocks: seedling – Gold Pearmain and clonal – MM 106. The trees grown in Chromic Luvisols and planted at 4.0 x 3.5 m. Drip irrigation treatments were 100% ET, 60% ET and non irrigated (control). Irrigation was scheduled using a class A pan. The influence of irrigation rate and cultivar/rootstock combinations on midday leaf and steam water potential was examined. The maximum midday leaf and stem water potential was measured of 100 ET treatment and the lowest of non-irrigated plot. The midday leaf and stem water potential in trees grafted on seedling rootstock were higher then that in MM 106. Florina was more sensitive to water stress than Freedom.
References
Allen, R. G., Pereira, Luis, S., Raes, D., Smith, M. 1998. Crop evapotranspiration – Guidelines for computing crop water requirements - FAO Irrigation and drainage paper 56.
Cohen S., Naor, A. 2002. The effect of three rootstocks on water use, canopy conductance and hydraulic parameters of apple trees and predicting canopy from hydraulic conductance. Plant, Cell and Environment, 25: 17-28.
Garsia, M. P., Puppo, L., Morales, P., Hayashi, R. 2011. Young apple trees response to water stress – early results. Acta Hort. (ISHS), 889: 273-280.
Mpelasoka, B. S., Behboudian, M. H., Ganesh, S. 2001а. Fruit quality attributes and their interrelationships of ‘Braeburn’ apple in response to deficit irrigation and to crop load. Gartenbauwissenschaft, 66 (5), 247-253.
Nakajima, H., Behboudian M., Greven M., Zegbe Dominguez J. 2004. Mineral contents of grape, olive, apple and tomato under reduced irrigation. Journal of Plant Nutri tion and Soil Science, 167(1): 91-92.
Naor, A. 1998. Relations between leaf and steam wa ter potentials and stomatal conductance in three field-grown woody species. Journal of Horticultural Science and Bio technology, 73 (4): 431-436.
Naor, A. 2006. Irrigation scheduling and evaluation of tree water status in deciduous orchards. Horticultural Re views, 32: 111-165.
Naor, A., Gal, Y., Peres, M. 2006. Inherent variability of a few water stress indicators in apple, nectarine and pear orchards, and the validity of a commercial leaf-selection pro cedure for water potential measurements. Irrigation Science, 24(2): 129-135.
Shackel, K. 2011. A plant – based approach to deficit ir rigation in trees and vines. HortScience, 46(2): 173-177.
Zegbe, J. A. and Behboudian, M. H. 2008. Plant wa ter status, CO2 , assimilation, yield and fruit quality of Pacific Rose ™ apple under partial rootzone drying. Advances in Horticultural Science, 22(1): 27-32.
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