Abstract
The research referred to evaluation of yielding of shallot depending on various maturity stage harvests from local population of Lublin region. The harvest took place in three maturity stages. In premature stage the plants that formed the bulbs but did not fall over the shoots. In full stage over 60% of plants fell over the shoot but the shoot was not withered. In the belated maturity stage the plats showed the signs of being overripe such as withered tops and being fully covered with outer skin. The quality of the yield was estimated taking into account the share of the bulbs of different size and the content of dry matter in fleshy scale as well as that of sugars (reducing sugars and total). The research indicates that a delay of the harvest influences the increase in the yield and the
rise in the number of the bulbs of greater diameter (above 25 mm). The bulbs from harvest in the second and third stages contained more dry matter (on average 20% more) and sugars in total (on average 11.48–11.78) in comparison to the bulbs from the first stage. Considering the volume and quality of the onion harvest, the most optimal term of the harvest was the phase when the plants fell over the tops, but the shoot was mostly green (second stage).
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