榛子果实发育中氮·磷元素动态变化

Dynamics and Crrelation of Nitrogen and Phosphorus of a Hazelnut Fruit During its Development Course

[目的]研究榛子果实发育过程矿物质的动态变化。[方法]研究3个榛子杂交品系果实发育中,氮、磷含量的动态变化规律。[结果]幼果迅速发育期和果仁发育期是榛子果实吸收、累积矿质元素的关键期。3个杂交品系中,氮素的变化规律为前期下降—中期平缓—后期快速增加,磷素的变化规律为前期下降—中期稳定—后期先快速增加,后快速下降。[结论]该研究为保证榛子果实发育中营养元素的合理补充提供理论依据。

[Objective]This paper studied the dynamics of mineral substance in development course of hazelnut fruit.[Method]The dynamics and correlation of nitrogen,phosphorus were analyzed during the development course of three crossbred of hazelnut.[Result] The young fruit rapid growth stage and kernel development stage were the critical periods for the absorption and accumulation of mineral elements.In the three crossbred of hazelnut,the content variation of nitrogen followed the pattern-decreased in prophase-constant in metaphase-increased markedly in anaphase,phosphorus followed the pattern-decreased in prophase-constant in metaphase-increased rapidly first,then decreased rapidly in anaphase.[Conclusion]The study provided theoretical basis for the rational supplement of nutrient elements in the development of hazelnut fruit.