期刊论文

中文

植物资源与环境学报

1674-7895

2000

9

3

26-29

10.3969/j.issn.1674-7895.2000.03.008

湖南省教育委员会资助项目 湛江师范学院博士基金资助项目!( 9810 6)

本校为其他机构

采用溶液培养和放射性同位素技术,比较籽粒低锌含量基因型水稻(Oryza sativa L.)湘早籼17与籽粒高锌含量基因型水稻V56根系形态及有关生理特性的差异,发现V56的根系比湘早籼17大(根较长,根体积较大,生物量较高)、根冠比值较高及根系吸收锌的K_(m)值较低,因而对锌的吸收量较大。这些特性可作为筛选籽粒高锌含量基因型水稻的指标。

Comparative studies on the difference of root morphological and physiological characteristics related with zinc absorption between two varieties of rice , one named “Xiangzhaoxian 17” which belongs to Zn\|poor grain genotype and the other named V56 which belongs to Zn\|rich grain genotype, were carried out by means of using solution culture and radioisotope techniques. Compared with “Xiangzhaoxian 17”, V56 has bigger root system (longer length, bigger volume and greater biomass), greater root\|top ratio, and lower \%K\%\-\{m\}value of zinc ...