新疆不同类型春小麦品种花后干物质与氮磷的积累及转运规律研究

【目的】在自然生态条件下,研究不同品质类型春小麦品种干物质及氮磷的积累和转运规律。【方法】选用新疆主栽的8个春小麦品种,测定其花后干物质和氮磷的积累量,对其积累和转运规律进行研究。【结果】不同类型品种花后干物质与氮磷的积累动态均呈上升的趋势,成熟期干物质与氮磷的积累量强筋品种最高,其次为中筋品种,中强筋品种较低;从干物质与氮磷的转运情况来看,花前干物质转运量和干物质转运率由大到小依次为中强筋>中筋>强筋,花后干物质转运量为中强筋>强筋>中筋,花前干物质转运对籽粒的贡献率依次为强筋>中筋>中强筋。三种类型春小麦品种氮磷的积累与转运状况基本一致,氮磷花后积累量和花前氮磷转移量均为强筋>中筋>中强筋。【结论】不同类型春小麦品种之间干物质与氮磷的积累及转运存在一定程度的差异。

Study on the Accumulation and Translocation Regulation of Dry Matter and NP after Anthesis in Different Types of Spring Wheat Varieties in Xinjiang

【Objective】The purpose of this project was to evaluate the accumulation and translocation regulation of dry matter and NP of different types of spring wheat varieties planted in the natural ecological condition.【Method】The test materials were 8 spring wheat varieties cultivated in Xinjiang.The accumulation and translocation regulations were studied by measuring the accumulation of dry matter and NP after anthesis.【Result】The accumulative dynamic state of dry matter and NP appeared a rising tendency after anthesis.The accumulation of dry matter and NP in strong gluten varieties was the highest in maturity,followed by middle gluten varieties and middle strong varieties.For the translocation of dry matter and NP,the amount and rate of dry matter translocation before anthesis was middle gluten>middle strong gluten>strong gluten in turn from high to low,the amount of dry matter translocation was middle gluten>strong gluten>middle strong gluten,the contribution rate of dry matter translocation to grain yield was strong gluten>middle gluten>middle strong gluten.The regulation of NP accumulation and translocation was basically consistent,and the amount of NP accumulation was strong gluten>middle gluten>middle strong gluten.【Conclusion】Certain difference existed under the regulation of dry matter and NP accumulation and translocation in different types of spring wheat varieties.