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Effects of low phosphorus stress on the chlorophyll fluorescence and photosynthesis characteristic in different developing periods of rapeseed leaves
Yu Liping, Tian Lirong, Zhang Chunlei, Ma Ni, Li Jun
Chinese Agricultural Science Bulletin . 2008, (12): 232 -236 .  DOI: 10.11924/j.issn.1000-6850.2008-0412