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稀土对甜菜光合产物分配影响的研究

A Study on the Effect of Rare-earth Element on the Distribution of Photosynthate in Sugar-Beet

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【作者】 田立勋赵景阳白宝璋孟宪局索滨华

【Author】 Tian Wenxun et al(Agronomy Department, Jilin Agricultural University)

【机构】 吉林农业大学农学系吉林农业大学土化系吉林农业大学土化系

【摘要】 本文利用同位素(14CO2)示踪法研究了稀土对糖用甜菜块根、糖分增长期光合产物分配的影响。结果表明,稀土能够促进甜菜同化CC2.提高根冠比,改善光合产物的分配,有利于光合产物向块根运输。其队,以0.05%浓度处理的效果为最好。

【Abstract】 The effect of rare-earth elements on the distribution of photosynthate in sugar beet by isotepic(14CO2) tracing method were studied in this paper. The experimental results indicated that rare-earth elements stimulation CO2 assimilation, increase the ratio of root and tops, improve distribution of photosynthate and ctimulate transport of organic matter from leaves to roots. The treatment con-sentration with 0.05% is the most significant among all treatments with earth elements.

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