Articles
EFFECTS OF PLANTING DATE AND IRRIGATION DATE ON QUALITATIVE AND QUANTITATIVE CHARACTERISTICS OF CUMIN (CUMINUM CYMINUM L.)
Article number
853_3
Pages
47 – 52
Language
English
Abstract
Cumin is one of the most important drug plants that has many uses in food and drug technology.
In order to investigate its drought resistance and determine the best date of planting, this experiment has been conducted in the form of split plot RCB design with 3 replications.
Treatments were date of planting (main plot) at 4 levels (25th Nov.
D1, 27th Dec.
D2, 19th Feb.
D3 and 19th Mar.
D4) and date of irrigation (sub plot) at 4 levels (complete irrigation I1, twice irrigation (seed germination and stem elongation) I2, twice irrigation (seed germination and flowering) I3 and twice irrigation (seed germination and seed formation) I4) in 2007–2008. Traits under study were percent of essential oil, 1000 seed weight, no. of umbels per plant, seed no. per umbels, lateral shoots, final height, biological yield, seed yield and harvest index.
Date of planting had significant effect on essential oil percent, 1000 seeds weight, no of seed per umbels, no of umbels per plant and final height at 1% level.
Also, irrigation date had significant effect on no. umbels per plant, no. of lateral shoots, biological yield and seed yield at 5% level.
Interaction of planting date and irrigation date were significant for no. of lateral shoots, biological yield, seed yield and biomass at 5% level.
Mean comparison had been done by Duncans test that showed there were significant differences among means of traits at different planting date treatments, except harvest index at 5% level.
Also, there were significant differences among means of traits at different date of irrigation treatments for essence percent, 1000 seeds weight, no. of umbels per plant, final height and harvest index.
Also, there were significant differences among interaction of date of planting and date of irrigation for all traits at 5% level.
The highest essential oil percent was related to D2I2 treatment equal to 1.8%. Also, the highest seed yield and biological yield occurred at D2I1 treatment.
Then the best treatment was 27th December planting date with complete irrigation.
In order to investigate its drought resistance and determine the best date of planting, this experiment has been conducted in the form of split plot RCB design with 3 replications.
Treatments were date of planting (main plot) at 4 levels (25th Nov.
D1, 27th Dec.
D2, 19th Feb.
D3 and 19th Mar.
D4) and date of irrigation (sub plot) at 4 levels (complete irrigation I1, twice irrigation (seed germination and stem elongation) I2, twice irrigation (seed germination and flowering) I3 and twice irrigation (seed germination and seed formation) I4) in 2007–2008. Traits under study were percent of essential oil, 1000 seed weight, no. of umbels per plant, seed no. per umbels, lateral shoots, final height, biological yield, seed yield and harvest index.
Date of planting had significant effect on essential oil percent, 1000 seeds weight, no of seed per umbels, no of umbels per plant and final height at 1% level.
Also, irrigation date had significant effect on no. umbels per plant, no. of lateral shoots, biological yield and seed yield at 5% level.
Interaction of planting date and irrigation date were significant for no. of lateral shoots, biological yield, seed yield and biomass at 5% level.
Mean comparison had been done by Duncans test that showed there were significant differences among means of traits at different planting date treatments, except harvest index at 5% level.
Also, there were significant differences among means of traits at different date of irrigation treatments for essence percent, 1000 seeds weight, no. of umbels per plant, final height and harvest index.
Also, there were significant differences among interaction of date of planting and date of irrigation for all traits at 5% level.
The highest essential oil percent was related to D2I2 treatment equal to 1.8%. Also, the highest seed yield and biological yield occurred at D2I1 treatment.
Then the best treatment was 27th December planting date with complete irrigation.
Authors
T. Esfandiari, M. Saberi, A. Mollafilabi
Keywords
cumin, date of planting and irrigation, essential oil
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