Folia Horticulturae

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Effect of harvest time on yield and seed quality of Callistephus chinensis Nees ‘Ryszard’

Mieczysław Grzesik, Krzysztof Górnik, Mariusz Chojnowski

Research Institute of Pomology and Floriculture
Pomologiczna 18, 96-100 Skierniewice, Poland

Yield and germination immediately after harvest and during one year storage of Callistephus chinensis ‘Ryszard’ seeds, harvested on two occasions from primary, secondary, and tertiary capitula, were studied. The greatest quantity of seeds was produced on secondary and tertiary capitula. The matured seeds harvested on 20th October from all capitula were heavier and germinated better during storage for six months than those collected three weeks later and from tertiary capitula. The best temperature for germination of unstored seeds, was 5-15°C. The percentage of germinated seeds and range of temperatures favourable for germination increased after storage for six months.

Grzesik M., Górnik K., Chojnowski M., 1998. Effect of harvest time on yield and seed quality of Callistephus chinensis Nees ‘Ryszard’. Folia Horticulturae 10/1: 95-102.