不同浓度磷对地枇杷生长及其锑吸收分布的影响

doi:10.16178/j.issn.0528-9017.20230283

摘要/Abstract

摘要：

该研究通过砂培盆栽的方式,运用单因子方差分析及多重比较、样本t检验的统计方法,探讨不同浓度的磷、锑复合胁迫对地枇杷(Ficus tikoua)生物量、叶绿素含量、氮磷钾吸收及锑吸收的分布特点。结果表明,低浓度磷对地枇杷茎和叶的干物质累积有促进作用,磷处理不仅能够增加地枇杷根和叶中的磷含量,而且高浓度磷对地枇杷根中钾的吸收有促进作用。高浓度磷会增加地枇杷叶中游离脯氨酸含量,同时也会增加叶片中具有保护作用的类胡萝卜素含量,减少光合作用系统的损伤。磷对锑处理下地枇杷生长有促进作用,能够增加地枇杷根和叶的干物质累积,而且高浓度磷能够缓解锑的毒害作用,降低叶片中脯氨酸含量,促进叶绿素a和类胡萝卜素合成。此外,适量的磷能够促进地枇杷根对锑的吸收,而限制锑在地枇杷叶中的存储。

关键词: 地枇杷, 锑, 磷, 叶绿素, 生物量

Abstract:

The effects of phosphorus (P) and antimony (Sb) on the physiological change of Ficus tikoua through sand culture method on biomass, chlorophyll content, and chlorophyll fluorescence parameters were discussed. The simple factor analysis of variance and further statistical method of multiple comparison and independent exponent t-test were used. The results showed that low concentrations of phosphorus had a promoting effect on the accumulation of dry matter in the stems and leaves of Ficus tikoua. Phosphorus not only increased the phosphorus content in the roots and leaves of Ficus tikoua, but high concentrations of phosphorus also promoted the absorption of potassium in the roots of Ficus tikoua. High concentrations of phosphorus can increase the content of free proline in leaves, as well as the content of protective carotenoids in the leaves, reducing damage to the photosynthetic system. Phosphorus has a promoting effect on the growth of Ficus tikoua under antimony treatment, which can increase the accumulation of dry matter in the roots and leaves of Ficus tikoua. Moreover, high concentrations of phosphorus can alleviate the toxic effect of antimony, reduce the content of proline in leaves, and promote the synthesis of chlorophyll a and carotenoids.In addition, an appropriate amount of phosphorus can promote the absorption of antimony by Ficus tikoua roots and limit the storage of antimony in Ficus tikoua leaves.

Key words: Ficus tikoua, antimony, phosphorus, chlorophyll content, biomass

中图分类号:

S667.3

王勇, 向媛, 许微. 不同浓度磷对地枇杷生长及其锑吸收分布的影响[J]. 浙江农业科学, 2024, 65(3): 592-599.

WANG Yong, XIANG Yuan, XU Wei. Effect of phosphorus on antimony accumulation andgrowth characteristics of Ficus tikoua[J]. Journal of Zhejiang Agricultural Sciences, 2024, 65(3): 592-599.

图/表 7

图1 磷锑复合处理对地枇杷干重的影响图中柱上无相同小写字母表示在0.05水平差异显著,图2~7同。A表示叶,B表示茎,C表示根。

Fig.1 Effect of phosphorus and antimony treatment on dry weight of Ficus tikoua

图2 磷锑复合处理对地枇杷叶绿素含量的影响

Fig.2 Effect of phosphorus and antimony treatment on chlorophyll content of Ficus tikoua

图3 磷锑复合处理对地枇杷脯氨酸含量的影响 A表示叶,B表示根。

Fig.3 Effect of phosphorus and antimony treatment on proline content of Ficus tikoua

图4 磷锑复合处理对地枇杷氮含量的影响 A表示叶,B表示茎,C表示根。

Fig.4 Effect of phosphorus and antimony treatment on nitrogen content of Ficus tikoua

图5 磷锑复合处理对地枇杷磷含量的影响 A表示叶,B表示茎,C表示根。

Fig.5 Effect of phosphorus and antimony treatment on phosphorus content of Ficus tikoua

图6 磷锑复合处理对地枇杷钾含量的影响 A表示叶,B表示茎,C表示根。

Fig.6 Effect of phosphorus and antimony treatment on potassium content of Ficus tikoua

图7 磷锑复合处理对地枇杷锑含量的影响

Fig.7 Effect of phosphorus and antimony treatment on antimony content of Ficus tikoua

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