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Post-harvest longevity of ×Heucherella L. leaves after the application of benzyladenine sprayed on maternal plants
- Janowska, Beata, Czuchaj, Piotr, Rybus-Zając, Magdalena
- Acta agrobotanica 2016 v.69 no.1 pp. aa.1649
- benzyladenine, carbohydrates, containers, cultivars, leaves, longevity, proteolysis, solar energy, spring, summer
- Analyses were conducted on leaves of two ×Heucherella L. cultivars: ‘Solar Power’ and ‘Kimono’. Leaves were harvested at two dates: spring (2014-05-22) and summer (2014-07-26). Prior to each leaf harvest day, the maternal plants were sprayed with benzyladenine (BA) at a concentration of 100, 300 and 600 mg dm−3. After being cut, the leaves were placed in containers with distilled water. In the cultivar ‘Solar Power’, BA at a concentration of 100–600 mg dm−3 had an advantageous effect on post-harvest longevity of leaves harvested in summer, improving it by 31.7–98.3%, while in the cultivar ‘Kimono’ BA at the above-mentioned concentrations improved post-harvest longevity of leaves harvested both in spring and summer by almost 2 months. BA at a concentration of 100–600 mg dm−3 inhibited proteolysis in leaves of the tested ×Heucherella cultivars, except for leaves of the cultivars ‘Solar Power’ and ‘Kimono’ harvested in summer from plants sprayed with BA at a concentration of 100 mg dm−3. In these leaves, the protein level was comparable to that in the control leaves. In leaves treated with BA at a concentration of 100–600 mg dm−3, the content of saccharides was higher than in the control plants harvested in the spring and summer.