Effect of drought stress and humic acid on yield and yield component traits of Coriandrum sativum L. plant in the Khoram abad condition
Subject Areas :
Seyed Hamid Tahery Mosavi
1
(
M. S. student, Department of Agronomy, Khorramabad branch, Islamic Azad University, Khorramabad, Iran.
)
Kazem Taleshi
2
(
Department of Agriculture, Khorramabad Branch, Islamic Azad University, Khorramabad, Iran
)
Keywords: Drought stress, yield, Humic acid, Coriander, Yield component,
Abstract :
In order to study the effect of drought stress and humic acid on yield and yield component traits of Coriandrum sativum L. plant in the Khoram abad condition an experiment was conducted split-plot design in a completely randomized block design three replications, in Kkoram abad, Lorestan province in 2016. The experimental treatments including of different levels of drought stress at main factor such as: S1= regular irrigation (control), S2= Non irrigation at stem growth S3= Non irrigation at bloom growth stage S4= Non irrigation at stem and bloom growth stage, were assigned main plot and spraying different concentrations of humic acid; h1= non humic acid (control), 50, 100 and 150 (mil mg/L) as a sub plot. In this research, the characters of number of main and sub branches, number of seed per plant, number of umbel per plant, number of seed per umbel, 1000 seed weight, seed yield and biological yield were estimated. The results showed that drought stress and humic acid could have a very significant impact on yield and yield component. Drought stress decries yield and yield component but humic acid had positive effect on decries yield and yield component. The highest seed yield (1182.56 kg/ha) obtain at non drought stress and 150 (mg/L) humic acid treatment.
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