Abstract
The growth of triticale seedlings from seeds treated with three concentrations of the plant growth regulators (PGRs), tetcyclacis and chlormequat, with or without drying after soaking was studied. Both tetcyclacis and chlormequat inhibited shoot growth. They reduced shoot:root ratios, first by restricting shoot growth (one week after treatment) and later by boosting root growth (eight weeks after transplanting). At the concentrations used tetcyclacis was a more active PGR than chlormequat and promoted tiller production. Drying, after soaking, promoted root growth, retarded the elongation growth of seedlings and enhanced some of the effects of the PGRs. Analyses of regressions between those growth characteristics significantly influenced by PGRs and the concentration revealed a quadratic relationship.
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Yang, W., Naylor, R.E.L. Effect of tetcyclacis and chlormequat applied to seed on seedling growth of triticale cv. Lasko. Plant Growth Regul 7, 289–301 (1988). https://doi.org/10.1007/BF00037637
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DOI: https://doi.org/10.1007/BF00037637