Analysis on Mineral Element Contents in Associated with Varietal Type in Core Collection of Yunnan Rice |
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| Authors: | ZENG Ya-wen LIU Jia-fu WANG Lu-xiang SHEN Shi-quan LI Zi-chao WANG Xiangkun WEN Guo-song YANG Zhong-yi |
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| Institution: | ;1.Crop Germplasm Resources Institute, Yunnan Academy of Agricultural Sciences, Kunming 650205, China; E-mail: zengyw@public.km.yn.cn; ;2.Analysis and Testing Center, Yunnan Academy of Agricultural Sciences, Kunming 650223, China; ;3.College of Crop Science, China Agricultural University, Beijing 100094, China |
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| Abstract: | Eight-element contents of 653 unpolished rice samples harvested from Xingping experiment farm, Yunnan Province under the same ecological conditions were analyzed by ICP-AES method. The mineral elements content were closely related to low diversity, high-yielding, and multi-resistance breeding; The K, Mg, Ca and Mn content in high-yielding and resistant varieties were high, and other nutrients such as P, Fe, Zn and Cu were low, which was connected with the heredity and physiological mechanism of mineral nutrients. There is zonal distribution of mineral elements content from Yunnan rice, especially for P, Fe, Zn and Cu co-related with the diversity center, paddy versus upland, glutinous and non-glutinous, glume-hair versus nuda, rice color, rice flavor, soft rice versus non-soft rice, but it did not find any association with indica-japonica types. The results supported the ecological variety group view of 5-grade taxonomic system species-subspecies-ecological groups-ecological variety groups - varietal types" . |
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| Keywords: | Yunnan rice core collection mineral elements varietal type |
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