ISHS Acta Horticulturae 244: IV International Symposium on Quality of Vegetables
YIELD AND QUALITY OF LEEK /ALLIUM PORUM/ AS AFFECTED BY METHOD OF GROWING |
| Authors: | S. Kaniszewski, J. Rumpel, K. Elkner |
| Abstract:
In field experiments conducted from 1985–1987 the effects of four growing methods on the yield and quality of leeks grown from transplants was investigated. The growing methods included: 1. traditional planting at a delth of 5 cm; 2. planting as above followed by hilling up of the plants with soil; 3. planting into 15 cm deep furrows, leveled during the growing season, and 4. planting into 20 cm deep holes. In all treatments the cultivars "Alaska", "Darkal", "Jolant" and "Nebraska" were grown. Planting into 20 cm deep holes reduced the yield compared to the other 3 treatments which gave similar yields. Hilling up, planting into furrows and into 20 cm deep holes increased the length and weight of the blanched part of the leek shafts /stems/ compared to traditional planting at a depth of 5 cm. Laboratory work revealed that blanched shaft parts contained more dry matter and total sugars, and less vitamin C, reducing sugars and nitrates than the green ones. Length and weight of the whole shaft and of its blanched part, as well as chemical composition, were also affected by the cultivar. | |
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