Effect of Cutting Time and Cutting Height on Yield and Yield Components of Ratoon Rice (Tarom Langrodi Variety)

Daliri, M. S.; Eftckhari, A.; Mobasser, H. R.; Tari, D. B.; Porkalhor, H.
January 2009
Asian Journal of Plant Sciences;2009, Vol. 8 Issue 1, p89
Academic Journal
In order to study the effect of cutting time and cutting height on yield and yield components of ratton rice (Oryza sativa L.) Tarom langrody variety a field experiment was carried out in the field of Ghaemshahr Azad University in 2007. Experimental design was arranged in spilt plot in basis of Randomized Completely Block Design with four replications. Some agronomical traits such as numbers of effective tiller hill-1, panicle number m-2, total spikelet panicle-1, filled spikelets percentage, 1000 grains weight, grain and biological yield and harvest index were measured. Results showed that the effect of cutting time on number of effective tiller hill-1, panicle m-2, percent filled spikelet panicle-1, grain yield and harvest index were found statistically significant. Cutting height had a significant effect on number of tiller in hill, number of effective tiller in hill, number of panicle m-2, filled spikelet panicle-1 percentage, grain yield and harvest index. Interaction among cutting time and cutting height on number of tiller hiller-1, number of effective tillers hill-1, number of panicle m-1 percent filled spikelet panicle-1 were significant. According to results cutting time at physiological maturity and also cutting in 40 cm cutting height from soil surface for the best grain of ratoon rice were recommended.


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