TY - Chin J Plant Ecol A1 - YIN Hai-Long, TIAN Chang-Yan T1 - Effects of nitrogen regulation on photosystem II chlorophyll fluorescence characteristics of functional leaves in sugar beet (Beta vulgaris) under salt environment Y1 - 2013-11-08 JF - Chinese Journal of Plant Ecology JO - Chin J Plant Ecol SP - 122 EP - 131 VL - 37 IS - 2 UR - https://www.plant-ecology.com N1 - 10.3724/SP.J.1258.2013.00013 ER -