IMPACT OF DIFFERENT WATER SUPPLY LEVELS ON YIELD AND BIOCHEMICAL INGREDIENTS IN BROCCOLI

R. Cakir, O. Erken, Canan Oztokat Kuzucu

Abstract: This research was conducted to determine the impacts of different water supply levels on the yield and biochemical ingredients of the broccoli plant during the 2008 and 2009 growing seasons under the environmental conditions of Canakkale province, Turkey. The Maraton broccoli (Brassica oleracea L. var. Italica) species was grown in 10 lt pots with five different irrigation levels (80%, 60%, 40%, 20%), including the control treatment (100%), where the total quantity of moisture deficiency was replenished with each irrigation application. The results show there was a decline in yield parallel to the reduction in amount of irrigation water. During the first and second years of the research, the respective yields obtained were between 667.84 - 101.68 g plant-1 and 775.87 - 109.29 g plant-1. Data on the total leaf surface area, electrolytic conductivity of the tissues, and amount of sulfur and proline were also determined and used to estimate the water-yield, irrigation water-proline and irrigation water-sulfur interactions.

Keywords: Broccoli; glucosinolate; proline; sulfur; water stress

Date published: 2019-01-28