禾谷类作物抗倒性研究方法与谷子抗倒性评价

倒伏是植株与其生长的环境条件相互作用的结果,是禾谷类作物产量和品种的重要限制因素。诱发倒伏的自然条件不是年年发生,但发生的程度差异很大,难以在自然条件下重复评价作物的倒伏性,因而人工诱发倒伏对于作物抗倒性的评价十分重要。谷子是非常容易发生倒伏的禾谷类作物,抗倒性的强弱是决定谷子高产、稳产的关键因素之一。由于谷子抗倒性的研究相对较少,本文通过对禾谷类作物抗倒伏性研究方法和评价指标的述评,为谷子抗倒性的研究提供借鉴,并对谷子倒伏与植株和产量性状的关系、品种抗倒性评价的指标等相关研究的进展做一综述。

The methods of crop lodging resistance assessment and their application in foxtail millet

The yield and quality of crops are seriously affected by occurrence of lodging, which results from interactions between plants and the environmental conditions where they grow. It is difficult to assess crop lodging under natural conditions because of inconsistency of climates that are favorable for lodging every year, which makes artificially induced lodging important in evaluation of lodging resistance in crops. Foxtail millet (Setaria italica (L.) P. Beauv.) is prone of lodging and the lodging resistance is one of the crucial factors for high and stable yielding in this cereal crop. Because little information on lodging resistance is available in foxtail millet, this review outlined the methods and parameters for evaluation of lodging resistance in other cereal crops in order to provide a reference for lodging resistance in foxtail millet. This article also reviewed the relationship between lodging and the traits associated with plant and yield and the parameters for assessing lodging resistance of foxtail millet cultivars.