摘要
用^(32)P示踪研究再生稻根系物质流,结果表明,上层根是头季稻灌浆与成熟期的主要功能根系。再生稻苗期主要依靠上、下层根吸收矿质养分(^(32)P),而灌浆至成熟期,则主要依靠再生根,其次是上层根。
The results obtained were as follows by ~32P: The upper-nodal-roots (U.R)was main function roots in filling and ripen stage of the fore rice, Ratooning rice mainlydepended on the U.R and the lower-nodal-roots (L.R) which absurbed mineral nutrient(~32P) in ratooning rice seccdling stage. Ratooning rice depended on the regenerate roots(R.R), U.R was inferior to R.R in ratooning rice filling and ripen stage.
出处
《江苏农学院学报》
CSCD
1991年第3期25-28,共4页
Jiangsu Agricultural Research
关键词
再生稻
根系
物质流
^32P示踪
水稻
Ratooning rice
Material flow of ratooning ricc roots
^(32)P isotope tracer
