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当前位置: 首页 > 文章 > 海藻酸钠寡糖对水稻生长发育、产量及镉吸收分布的影响 江西农业学报 2017 (6) 1-6
Position: Home > Articles > Effects of Alginate Oligosaccharides on Growth,Development,Yield,and Cadmium Absorption and Distribution of Rice Acta Agriculturae Jiangxi 2017 (6) 1-6

海藻酸钠寡糖对水稻生长发育、产量及镉吸收分布的影响

作  者：
张运红;杜君;和爱玲;孙克刚;郑春风;杨焕焕;丁华
单  位：
河南省农业科学院植物营养与资源环境研究所/河南省农业生态与环境重点实验室
关键词：
海藻酸钠寡糖;水稻;生长发育;产量;镉;吸收;分布
摘  要：
采用盆栽试验,研究了海藻酸钠寡糖对水稻生长发育、产量及镉(Cd)吸收分布的影响。结果显示:在Cd胁迫条件下,施用海藻酸钠寡糖的水稻功能叶片在各生育期的SPAD值及在开花期的净光合速率均较Cd胁迫单独处理有所提高,成熟期水稻的总生物量、经济系数和耐性指数也显著增加,且水稻株高、有效穗数、穗长、穗粒数、千粒重和产量分别较Cd胁迫单独处理增加了2.23%、9.78%、4.99%、5.30%、3.55%和16.82%。在Cd胁迫条件下,施用海藻酸钠寡糖的水稻根中的Cd含量较Cd胁迫单独处理增加了10.61%,而茎、叶和籽粒中的Cd含量分别降低了2.34%、1.98%和3.77%,且茎、叶和籽粒中Cd的转移系数也显著下降。上述结果表明海藻酸钠寡糖可促进Cd胁迫下水稻的生长发育,并抑制Cd从根部向地上部的运输。
译  名：
Effects of Alginate Oligosaccharides on Growth,Development,Yield,and Cadmium Absorption and Distribution of Rice
作  者：
ZHANG Yun-hong;DU Jun;HE Ai-ling;SUN Ke-gang;ZHENG Chun-feng;YANG Huan-huan;DING Hua;Institute of Plant Nutrition,Agricultural Resources and Environmental Sciences,Henan Academy of Agricultural Sciences/Henan Key Laboratory of Agricultural Ecology and Environment;
关键词：
Alginate oligosaccharides;;Rice;;Growth and development;;Yield;;Cadmium;;Absorption;;Distribution
摘  要：
Pot experiments were conducted to study the effects of alginate oligosaccharides( AOS) on the growth,development,yield,and cadmium( Cd) absorption and distribution of rice plants. The results showed that: under Cd stress,the application of AOS raised the SPAD value of functional leaves of rice at various growth stages and the net photosynthetic rate of rice leaves at flowering stage,significantly increased the total biomass,economic coefficient and tolerance index of rice at mature stage,and enhanced the plant height,number of effective panicles,panicle length,number of grains per panicle,1000-grain weight and yield of rice by 2.23%,9.78%,4.99%,5.30%,3.55% and 16.82%,respectively. Under the condition of Cd stress,in comparison with the control( not applying AOS),the application of AOS increased the Cd content in rice roots by 10.61%,however reduced the Cd content in stems,leaves and grains of rice by 2.34%,1.98% and 3.77%,respectively,and significantly reduced the transfer coefficients of Cd in rice stems,leaves and grains. These results indicated that AOS could promote the growth and development of rice plants under the stress of Cd,and could suppress Cd transport from rice root to rice shoot.

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