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vol. 8, nr. 3 (2006)
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Effect of harvest time on yield and technological value of seeds of blueweed (Echium plantagineum L.)
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Beata Król
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Department of Industrial and Medicinal Plants, Agricultural University, ul. Akademicka 15, 20-950 Lublin |
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vol. 8 (2006), nr. 3,
pp. 657-662
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abstract:
A two year field experiment (2002 and 2003) was conducted to examine the effect of harvest time of two cultivars of blueweed: Blue Bedder and Mixed Bedding. Seeds were sown in the middle of April, in rows 45 cm apart at the rate of 5 kg ha-1. Plants were harvested at two stages: when 50% and 70% of seeds achieved ripeness. Delay of harvest up to the second stage resulted in a decrease of 1000 seeds weight and total yield of both cultivars (on average by 33%). Mixed Bedding produced bigger seeds, gave slightly higher yield, and the seeds contained more fat, GLA and SDA. The influence of harvest time on quality of seeds differed: delay of harvest of Blue Bedder led to a decrease in fat content and increase of GLA and SDA, while in the case of Mixed Bedding the content of those fatty acids decreased.
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keywords:
blueweed, harvest time, cultivar, yield
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original in:
Polish
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