effect of irrigation interval and selenium application on agronomical traits of grain maize
Mohammad Shirmohammadi
1
(
Department of Agronomy, Takestan Branch, Islamic Azad University, Takestan, Iran
)
Saeed sayfzadeh
2
(
Department of Agronomy, Takestan Branch, Islamic Azad University, Takestan, Iran
)
Seyed Alireza Valadabadi
3
(
Department of Agronomy, Takestan Branch, Islamic Azad University, Takestan, Iran
)
Keywords: Drought stress, Grain yield, selenium, grain maize,
Abstract :
The present study was done at spring and summer of 2014 in Hesar Khorvan, Qazvin. This research as split plot as base of RCBD in 3 replications was conducted. The experimental factors included 4 levels of drought stress (I1: normal irrigation, I2: cut off irrigation at vegetative stage, I3: cut off irrigation at flowering stage, I4: cut off irrigation at vegetative and flowering stages) as main plot and selenium foliar application in 3 levels (S1: non application, S2: 15 g/L selenium foliar application and S3: 30 g/L selenium foliar application) as sub plot were considered. Results showed that effect of irrigation and selenium was significant on grain yield at 1% probability. Interaction of irrigation and selenium also was significant on grain yield at 5% probability. The mean comparison results indicated that the most grain yield was gain from normal irrigation (control) with mean of 7506 kg/ha and the least grain yield was belonged to cut off irrigation in both vegetative and flowering stages with mean of 4036 kg/ha. Results of mean comparison of selenium effect on grain yield demonstrated that the highest grain yield related to 30 g/L selenium with mean of 6185 kg/ha and the lowest value was observed in no application of selenium with mean of 5296 kg/ha.
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