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The effect of transplant age and storage time in a cold room on chemical composition of broccoli heads

Aneta Grabowska, Edward Kunicki, Andrzej Libik

Department of Vegetable Crops and Horticultural Economics
Faculty of Horticulture, Agricultural University in Kraków
29 Listopada 54, 31-425 Kraków, Poland
e-mail: agrabowska@ogr.ar.krakow.pl

In the experiment carried out for 3 years at the Agricultural University in Kraków, the effect of transplant age and storage time in a cold room on the yield and nutritive value of broccoli ‘Lord F1’ heads was investigated. Transplants were stored in freon cold room without access to light at 2°C at relative humidity of 80-85%.

It was demonstrated that only the duration of the storing time had essential influence on dry matter content. Higher level of this component was found in the broccoli heads of the plants the transplants of which were not stored or stored for one week in the cold room (11.49 and 11.17% respectively) than from those kept for two weeks (10.36%). Neither the age of transplants nor the time of storing had any significant influence on the content of L-ascorbic acid in broccoli heads.

The significant effect of the investigated factors on the content of the selected elements in the broccoli heads was affirmed. In the case of the transplants age it concerned phosphorus, calcium, magnesium, sodium, iron and in the case of the time of storage – calcium, zinc and manganese.

Transplant age had not significant effect on the content of nitrates in the broccoli heads, however, considering the time of storage, more nitrates were found in the plants whose transplants were stored by 1 and 2 weeks in a cold room.

Grabowska A., Kunicki E., Libik A., 2007. The effect of transplant age and storage time in a cold room on chemical composition of broccoli heads. Folia Horticulturae 19/2: 11-22.