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Effect of post-plant soil solarization on the reclamation of apple trees grafted onto MM. 106 rootstock infected by Phytophthora cactorum
Journal of Plant Pathology ( IF 2.2 ) Pub Date : 2020-07-06 , DOI: 10.1007/s42161-020-00596-1 Bahram Mansoori
Journal of Plant Pathology ( IF 2.2 ) Pub Date : 2020-07-06 , DOI: 10.1007/s42161-020-00596-1 Bahram Mansoori
Phytophthora cactorum was identified as the causal agent of crown and root rot of apple varieties grafted onto MM. 106 rootstock in the orchards of Fars province, Iran. In a survey conducted in 2012, 3–5% of apple trees at 3- to 6-year-old were found dead and 10–12% of older ones showed declining symptoms. Field trials were carried out to investigate the effect of post-plant soil solarization on the reclamation of apple trees on infected rootstocks. Experiments were conducted in drip-irrigated Golden Delicious apple orchards in Soghad and Kodian districts for 1 to 4 wk. in the July 2013 and 2015 using transparent polyethylene sheets for soil tarping. In both trials soil temperature raised by 10 to 16 °C in the upper 25 cm layer of top soil and resulted in the apparent eradication of P. cactorum population and reclamation of apple trees in the subsequent year. Except in 1 wk. soil tarping treatment, apple trees showed significantly increased growth responses in 2, 3 and 4 wk. tarping treatments as compared to untreated control. The best results were obtained in the 4 wk. soil tarping treatment. Attempts to isolate P. cactorum from soil and roots of 2–4 wk. tarped plants were unsuccessful.
中文翻译:
种植后土壤日晒对嫁接在 MM 上的苹果树复垦的影响。106根砧木被仙人掌感染
Phytophthora cactorum 被鉴定为嫁接在MM 上的苹果品种的冠腐病和根腐病的病原体。伊朗法尔斯省果园中的106根砧木。在 2012 年进行的一项调查中,发现 3-6 岁的苹果树中有 3-5% 死亡,10-12% 的老树表现出症状下降。进行了田间试验以研究种植后土壤日晒对苹果树在受感染砧木上复垦的影响。在 Soghad 和 Kodian 地区的滴灌金冠苹果园中进行了 1 至 4 周的试验。在 2013 年 7 月和 2015 年,使用透明聚乙烯板进行土壤防水布。在这两项试验中,表层土壤上部 25 厘米层的土壤温度升高了 10 至 16°C,导致 P. 仙人掌种群和随后一年的苹果树开垦。除了 1 周。土壤防水布处理后,苹果树在 2、3 和 4 周内表现出显着增加的生长反应。与未处理的对照相比,油布处理。最好的结果是在第 4 周获得的。土壤油布处理。尝试从 2-4 周的土壤和根中分离 P. cactorum。油布植物没有成功。
更新日期:2020-07-06
中文翻译:
种植后土壤日晒对嫁接在 MM 上的苹果树复垦的影响。106根砧木被仙人掌感染
Phytophthora cactorum 被鉴定为嫁接在MM 上的苹果品种的冠腐病和根腐病的病原体。伊朗法尔斯省果园中的106根砧木。在 2012 年进行的一项调查中,发现 3-6 岁的苹果树中有 3-5% 死亡,10-12% 的老树表现出症状下降。进行了田间试验以研究种植后土壤日晒对苹果树在受感染砧木上复垦的影响。在 Soghad 和 Kodian 地区的滴灌金冠苹果园中进行了 1 至 4 周的试验。在 2013 年 7 月和 2015 年,使用透明聚乙烯板进行土壤防水布。在这两项试验中,表层土壤上部 25 厘米层的土壤温度升高了 10 至 16°C,导致 P. 仙人掌种群和随后一年的苹果树开垦。除了 1 周。土壤防水布处理后,苹果树在 2、3 和 4 周内表现出显着增加的生长反应。与未处理的对照相比,油布处理。最好的结果是在第 4 周获得的。土壤油布处理。尝试从 2-4 周的土壤和根中分离 P. cactorum。油布植物没有成功。