Cold Tolerance of Core Collection at Booting Stage Associated with Eco-geographic Distribution in Yunnan Rice Landrace (<EM>Oryza sativa</EM>), China <BR>

LI Shen-chong , ZENG Ya-wen , SHEN Shi-quan , PU Xiao-ying

RICE SCIENCE . 2004, (5-6): 261 -268 .