ERKEN, Okan Çanakkale Onsekiz Mart University, Terzioglu Campus - Agricultural Faculty - Department of Agricultural Structures and Irrigation, Turkey , ÖZTOKAT KUZUCU, Canan Çanakkale Onsekiz Mart University, Terzioglu Campus - Agricultural Faculty - Department of Horticulture, Turkey

Impacts of deficit irrigaton applied at different growth stages on vitamin contents of broccoli

23119

This research was conducted in order to determine the impacts of deficit irrigation applied at different growth stages on some vitamin contents of broccoli during 2010 growing season. Variations in L-ascorbic acid (vitamin C), retinol (vitamin A) and α-tocopherol (vitamin E) contents were determined by using high-pressure liquid chromatography (HPLC) method. Maraton Broccoli was grown as the plant material of the study and 5 different water deficit levels (80, 60, 40, 20%, and a control treatment with 100%) were applied during 3 different growth stages (early vegetative, late vegetative and flowering periods) of broccoli plants. Results revealed significant variations in L-ascorbic acid (vitamin C), retinol (vitamin A) and α-tocopherol (vitamin E) contents of broccoli heads with deficit irrigation applications at different growth stages. Results revealed significant variations in L-ascorbic acid (vitamin C), retinol (vitamin A) and α-tocopherol (vitamin E) contents of broccoli heads with deficit irrigation applications at different growth stages.

277

Brassica oleracea L. var. Italica , Lascorbic acid , retinol , α , tocopherol

The Journal Of Ege University Faculty Of Agriculture

283