Summary
The effect of irrigation on tillering and tiller mortality in varieties of wheat (Triticum aestivum and T. durum), triticale and barley was studied under field conditions. Low temperature in the early stages of growth promoted production of tillers whereas increase in temperature during extension growth phase increased tiller mortality. More than 1000 tillers m−2 were produced with five irrigations but 40% or more died. With limited water availability tiller production was reduced but so was their mortality. Grain yield in wheat and triticale was positively correlated with productive tillers and negatively correlated with the maximum number of tillers produced in wheat and barley grown under limited irrigation conditions. Varieties with a capacity to produce fewer tillers were identified. Some of them proved more stable in yield. No correlation was found between tiller number and grain yield in the frequently irrigated treatment.
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Chaturvedi, G.S., Aggarwal, P.K., Singh, A.K. et al. Effect of irrigation on tillering in wheat, triticale and barley in a water-limited environment. Irrig Sci 2, 225–235 (1981). https://doi.org/10.1007/BF00258376
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DOI: https://doi.org/10.1007/BF00258376