‘Hwimori-gold’ Kimchi cabbage Yield and Sensorial Related Compounds Grown under Bifacial Agrophotovoltaic System

다국어 초록 (Multilingual Abstract)

Renewable energy including wind power and solar power has been gain attention. To save land usage, agrophotovoltaics (APV) is suggested as one of the efficient renewable energy generating method. In order to evaluate Kimchi cabbage growth and quality under bifacial APV, ‘Hwimori-gold’ Kimchi cabbage seedlings (30-days old) were transplanted to both open-field and APV area. The growing period from transplanting to harvest was 90 d in the 2019 Fall (2019. 9. 6 ~12. 4) and 82 d in the 2020 Fall (2020. 9. 6~ 11. 27). Kimchi cabbage head average weight in 2019 and 2020 from open-field, bifacial_A (A solar panel company, located west side), and bifacial_B (B solar panel company, located center) were 4.4kg, 4.0kg, and 3.1kg, respectively. Kimchi cabbage head average weight loss (%) in 2019 and 2020 from bifacial_A and bifacial_B were 9% and 29%, respectively. Thus, overall Kimchi cabbage head weight loss was 19% across different area of bifacial solar panel over 2 years.Seven glucosinolates (GS) were detected 2019 and 2020 Fall (progoitrin, glucoraphanin, gluconapin, glocubrassicin, 4-methoxyglubrassicin, gluconasturtiin, and neoglucobrassicin) by high performance liquid chromatograph. Total GS concentration was not significantly different among treatments both 2019 and 2020 growing years. The major glucosinolate was 4-methoxyglucobrassicin in Kimchi cabbage (47.5%). 4-methoxyglucobrassicin of 2020 Kimchi cabbage grown from bifacial_B was significantly higher than those from open field. Eight GS hydrolysis products of Kimchi cabbage were detected 2019 and 2020 Fall (phenethyl isothiocyanate, 3-phenylpropionitrile, erucin nitrile, erucin, brassicanapin, 1-cyano-3, 4-epithiobutane epithionitrilegluconapin, 1-cyano-4, 5-epithiopentane, and 3-Butenyl isothiocyanate) by gas chromatograph-mass spectrometry. The major GS hydrolysis products were 1-cyano-3, 4-epithiobutane epithionitrilegluconapin (gluconapin, 25%) and 1-cyano-4, 5-epithiopentane (glucobrassicanapin, 42%) in 2019 Fall and 3-phenylpropionitrile (gluconasturtiin, 28%) and 1-cyano-4, 5-epithiopentane (glucobrassicanapin, 25%) in 2020 Fall. Total GS hydrolysis products and total sugar contents (glucose, fructose, and sucrose) were not significantly different among treatments. Our data suggests there was no significant difference in taste and flavor compounds by growing under APV.