Lodging habit in commercial varieties of sobean released in India

摘要

Adequate lodging resistance is an important, desirable character for the development of improved varieties of soybean. Severe lodging causes significant yield loss (Leffel, 1961; Cooper, 1971 a, 1971b). The present study reports the lodging habit of 46 prominent soybean varieties releabed for commercial cultivation in India. 46 soybean varieties were grown during rainy seasons of 1991 and 1993 at the research farm of National Research Centre for Soybean, Indore (22°41' N latitude, 75°52' E longitude and 540 meters altitude). Observations were recorded on mature plant height, lodging habit and growth habit. The lodging habit of the Soybean plants was rated on a scale from 1 to 5, with 1 for erect plants, 3 for plants that are leaning at a 45° angle and 5 for prostrate plants .