ABSTRACT
The field experimental research was conducted in rain sheltered field plots at Changwu Agroecological Experiment Station, Chinese Academy of Sciences during 1995-96 to study the effects of limited irrigation on physiological characteristics of winter wheat (Triticum aestivum L) on Loess Plateau. The experimental site is located at 35°12'N degrees latitude, 107°40'E degrees longitude, at an elevation of 1200 meters above mean sea level. Precipitation averages 585 mm annually. The climate is classified as semihumid. Contemporary winter wheat variety Changwu 85-134 was used. Research results indicated that soil moisture made a great deal of difference in time of day and seasonal change of photosynthesis characteristics, growth and development, assimilative matter distribution and yield of winter wheat. Also presented are some methods for increasing the yield and water use efficiency of winter wheat on the Loess Plateau.
