Alcántara Esteban, Cordeiro Antonio Manuel, Barranco Diego
Departamento de Agronomía, Escuela Técnica Superior de Ingenieros Agrónomos y de Montes, Universidad de Córdoba, Apdo. 3048-14080 Córdoba, Spain.
J Plant Physiol. 2003 Dec;160(12):1467-72. doi: 10.1078/0176-1617-01013.
Under certain conditions, olive trees grown on calcareous soils suffer from iron chlorosis. In the present study several olive varieties and scion-rootstock combinations were evaluated for their tolerance to iron chlorosis. Plants were grown over several months in pots with a calcareous soil, under two fertilization treatments. These consisted of periodic applications of nutrient solutions containing either, 30 micromol/L FeEDDHA or not Fe. Tolerance was assessed by the chlorosis and growth parameters of plants grown without Fe, compared to those plants grown with Fe. Results show that there are differences in tolerance among olive varieties and that tolerance is mainly determined by the genotype of the rootstock. These results open the way to use tolerant varieties for those conditions where iron chlorosis could become a problem.
在某些条件下，生长在石灰性土壤上的橄榄树会患缺铁性黄化病。在本研究中，对几个橄榄品种和接穗-砧木组合进行了缺铁性黄化病耐受性评估。将植株在装有石灰性土壤的花盆中种植数月，设置两种施肥处理。一种是定期施用含30微摩尔/升乙二胺二邻苯基乙酸铁（FeEDDHA）的营养液，另一种不施铁。通过比较不施铁条件下生长的植株与施铁条件下生长的植株的黄化病情况和生长参数来评估耐受性。结果表明，橄榄品种之间的耐受性存在差异，且耐受性主要由砧木的基因型决定。这些结果为在缺铁性黄化病可能成为问题的条件下使用耐受性品种开辟了道路。
