Figure 1 Spectral irradiance in an open area (outside of tunnel) and transmittance of radiation through plastic material covering tunnel: A and B (inside)
Related Figures (3)
Table 1. Light transmission through plastic materials covering tunnel *Tunnel A covered with plastic film transmitted less light than B **Values marked with the same letter do not differ significantly at p = 0.05 Table 2. Concentration of nitrate (mg NO, kg" f:m.) and ammonium ions (mg NH,” kg" fm.) and nitrate (umol NO, 100g" fm. h’') and nitrite reductase (umol NO, 100g" f.m. h'') activity in sweet pepper fruits after harvest * **Explanations: see Table 2 Table 3. Content of total nitrogen (% N in d.m.), free amino acids (mg N 100 g" f.m.), dry matter (%) and soluble sugars (% f.m.) in sweet pepper fruits after harvest