Journal of Food, Agriculture and Environment

Effects of water limitation on grain and oil yields of sesame cultivars

Author(s):

Hamdollah Eskandari ¹, Saeid Zehtab-Salmasi ^1*, Kazem Ghassemi-Golezani ^1*, Mohammad Hussein Gharineh ²

Recieved Date: 2009-01-13, Accepted Date: 2009-04-17

Abstract:

Two field experiments were carried out in 2007 and 2008, in order to investigate the effects of water supply (I₁, I₂, I₃ and I₄: irrigation after 150, 200, 250 and 300 mm evaporation from Class-A pan) on grain and oil yields of five sesame cultivars (Yellow Witte, TN₂₃₈, TS₃, Safiabadi and local cultivar of Ramhormoz). Experiments were arranged as split-plot based on randomized complete block design in four replications, with the irrigation levels in main plots and sesame cultivars in subplots. The results indicated that all traits except grain weight were significantly affected by irrigation regimes. Grains per plant, biological and grain yields, oil percentage and yield and protein yield decreased, while protein percentage increased with increasing water availability. Severe water stress (I₄) reduced the oil and protein yields by 38.18 and 10.77%, respectively. The extent of these reductions was related with the variations in grain yield and oil and protein percentages of sesame under different irrigation treatments. TS₃ was a superior cultivar under all irrigation treatments.

Keywords:

Oil, protein, sesame, water supply, yield

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Journal: Journal of Food, Agriculture and Environment
Year: 2009
Volume: 7
Issue: 2
Category: Agriculture
Pages: 339-342

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