Effects of Zeolite on Canola under Salinity Stress
Subject Areas :
Keywords: yield, Seed, Oil, water use efficiency, water salinity,
Abstract :
To evaluate the effect of different levels of irrigation water salinity (1.4, 4, 7 and 10 dS.m-1) and zeolite (0, 3, 6 and 9 tons per hectare) on rapeseed, an experiment in season 2015 was done in the Gorgan region. The results showed that all levels of zeolite and salinity increased and decreased the length of the pod to the rate of about three percent, respectively. Most plant height, number of pods per plant, number of seeds per pod and biological yield was observed in 9 tons per hectare zeolite application level that were increased by 11, 6, 3 and 12 percent compared to the control treatment (non-application), respectively. However, the maximum amount of seed weight, seed yield and its water use efficiency and seed oil yield and its water use efficiency by 12, 11 and 17 percent increasing compared to the control treatment were obtained at the application level 6 tons per hectare zeolite. Different levels of salinity results in decrease of number of seeds per pod between two and four percent compared to the control level. On the contrary, salinity levels 7 and 10 dS.m-1 increased the number of pods per plant, seed weight, seed yield and its water use efficiency, biological yield and seed oil yield and its water use efficiency, although those findings were consistent to some researchs
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