Journal of Food, Agriculture and Environment

Irrigation period in three rapeseed cultivars influences crop phenology and yield

Author(s):

Somayeh Hosseinian Maleki ¹, Bahram Mirshekari ^2*

Recieved Date: 2010-09-20, Accepted Date: 2011-03-28

Abstract:

In order to study the effect of irrigation period on phenology and yield of three rapeseed cultivars an experiment was conducted in Islamic Azad University, Tabriz Branch, Research Field during 2008-2009. Irrigation treatments were 75 (S₀), 100 (S₁), 125 (S₂) and 150 (S₃) mm evaporation from class A pan and three winter rapeseed cultivars as Mardna (V₁), Okapi (V₂) and SLM 047 (V₃). Cultivar and irrigation period interaction was significant in silique number, 1000 seeds weight and seed yield in 1% probability level and days between flowering to maturity, oil percent and oil yield in 5% probability level. Effect of rapeseed cultivar was significant on plant height and silique seed number. Maximum and minimum intervals from flowering to maturity were 55 and 47 days in S₀V₁ and S₃V₁, respectively. Greatest and least leaf area index was 3.19 and 2.75 in S₀ and S₃, respectively. The highest and the lowest 1000 seed weights were 3.8 and 2.8 g for S₂V₃ and S₃V₂, respectively. In this study rapeseed irrigation in a regulated range as 14 days period resulted in maximum seed and oil yield. These results showed that more plant silique number and seed yield increase per area unit resulted in more oil yield. Maximum seed oil percent was in S₂V₂. On the other hand maximum oil yield was 1225 L.ha^-1 in S₀V₁ because of maximum seed yield in V₁. It is concluded from the present study that Mardna cultivar can be cultivated in cold temperate areas with enough irrigation water.

Keywords:

Evaporation, oil yield, rapeseed cultivars, 1000 seeds weight

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Journal: Journal of Food, Agriculture and Environment
Year: 2011
Volume: 9
Issue: 2
Category: Agriculture
Pages: 446-448

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