The effect of thidiazuron on the yield of wheat grown with varying nutrient supply

✍ Scribed by R. P. Beckett; J. Staden

• Publisher: Springer Netherlands
• Year: 1992
• Tongue: English
• Weight: 406 KB
• Volume: 11
• Category: Article
• ISSN: 0167-6903
• DOI: 10.1007/bf00130640

✦ Synopsis

The effect of the synthetic cytokinin thidiazuron on the yield of wheat growing under conditions of varying nutrient supply was investigated . Applications of thidiazuron during the early growth stages of wheat promoted tillering but reduced yield . Applications of thidiazuron during flag leaf senescence had little effect on yield . However, the yield of plants was increased at all levels of nutrient supply by treating plants with paclobutrazol during the early growth stages followed by thidiazuron during flag leaf senescence . Yield increases were greatest in moderately nutrient stressed plants, but were accompanied by a reduction in the N concentration of the grain . Possible reasons for the interaction between thidiazuron and paclobutrazol in increasing the yield of wheat are discussed .