Effects of Trinexapac-Ethyl on different wheat varieties under desert conditions of Mexico

• 作者: Fabián Robles-Contreras Fidel Nu?ez-Ramírez Gerardo Martínez-Díaz Raúl Leonel Grijalva-Contreras Rubén Macías-Duarte
• 来源期刊: 农业科学(英文)
• 学科: 医学
• 关键词: Growth REGULATORS Moddus YIELD PLANT HEIGHT LODGING
• 年，卷（期）: 2012,（5）
• 页码范围: 658-662
• 页数: 5页
• 分类号: R73

摘要

A field study was conducted to determine the effect of Trinexapac-Ethyl (TE) on four wheat varieties (Rafi C97, Altar C84, Nacori C97 and Rayon F86) at three growth stages (first node, second node and flag leaf). TE application (150 g a.i. ha-1) reduced plant height and decreased grain yield at any growth stage. Yield decrease was associated to a significant reduction in the number of grains per spike and in grain weight. TE delayed flowering time and grain maturity, while stem diameter and spikes m-2 were not affected. Further studies are needed to clarify the effect of TE on wheat under desert conditions of Mexico.