PERFORMANCE OF ITALIAN STRAWBERRY GENOTYPES ON FUMIGATED, NON-FUMIGATED SOILS AND ORGANIC CULTURE
The performance of 10 strawberry (Fragaria × ananassa) genotypes from Italian breeding programs was tested on cold-stored plants and fresh plug plants in a five-year field trial at Cesena in Italys Po Valley with and without pre-plant soil fumigation. The same genotypes were evaluated in the last 2 years under organic culture at the same farm. The plants in fumigated soil had 15% more brunch crowns, 30% higher yield and 6% bigger fruit than those grown in non-fumigated soil. Significant genotype × fumigation interactions were detected. Cultivars Record, Roxana and the advanced selections 97.70.3, 97.129.11, 98.78.7 and 00.92.4 showed the highest yields both in fumigated (more than 900 g/plant) and non-fumigated soils (more than 700 g/plant). Selection 97.129.11 is well suited to the plug-plant technique and had higher yield, more than 800 g/plant, than that recorded on cold-stored plants grown in non-fumigated soil. Organic plug plants produced the same yield as cold-stored plants, with cultivars Record and Roxana and selections 97.129.11 and 00.92.4 showed good adaptability to this system. Our results confirm that plant productivity is increased by fumigation, although some genotypes showed high yield in non-fumigated and organic culture. This appears to be a good opportunity for developing cultivars specifically adapted to the sub-lethal effects of organisms in non-fumigated and organic soils.
Baruzzi, G., Faedi, W., Lucchi, P., Migani, M., Sbrighi, P. and Turci, P. (2009). PERFORMANCE OF ITALIAN STRAWBERRY GENOTYPES ON FUMIGATED, NON-FUMIGATED SOILS AND ORGANIC CULTURE. Acta Hortic. 842, 553-556
Fragaria × ananassa, resistance, root rot, soil borne pathogens, plug plant