Production system effects on growth, pod yield and seed quality of organic faba bean in southern Italy
Amalfitano Carmine | Agrelli Diana | Borrelli Carlo | Cuciniello Antonio | Morano Giuseppe | Caruso Gianluca
A research was carried out in southern Italy in order to evaluate the effects of two farming systems (open field, greenhouse) and five transplanting times (27 September, 11 October, 25 October, 8 November, 22 November) on plant growth, harvest precocity, fresh pod yield and seed quality of organic faba bean. Crop biomass and root expansion were higher in open field than in greenhouse. The fourth planting time resulted in the highest crop biomass, whereas the second crop cycle showed the highest leaf area index. Greenhouse crops showed higher precocity than the open field ones by about two weeks, as well as the first transplant; the delay in harvest beginning increased from the second to the fourth planting time. Both fresh pod and seeds yield were significantly higher in open field than under protected environment with the third and fourth planting times. Seed fiber and protein content showed higher values in greenhouse compared to open field and increased with the transplant delay. Seed polyphenols attained higher concentration in open field and with the two earliest planting times. Overall, 25 October to 8 November planting times in open field best fitted the southern Italy growing conditions in terms of pod yield, but the 27 September to 11 October planting times resulted in the highest harvest precocity, remarkably enhanced under greenhouse growing, whereas seed quality was controversial.
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