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为了研究春小麦根系变化与地上部生长、产量构成因素的关系,选用8个不同春小麦在各个生育期测定根系和地上部生物量变化以及产量构成因素,结果表明:不同春小麦品种根系的各个指标大部分出现在抽穗期和开花期。根体积与主茎干重、根鲜重与主茎干重正相关显著。千粒重与根数呈负相关显著,株高与根长呈负相关显著,穗长与根数、根长呈负相关显著,株粒重与株粒数与根系呈正相关。因此,在选品种时,并非根量越多越好,必须与地上部保持一定的平衡协调关系,才能保证高产。
In order to study the relationship between the root system changes of spring wheat and shoot growth and yield components, eight different spring wheat were selected to measure the changes of root biomass and aboveground biomass at different growth stages and yield components. The results showed that most of the indexes of root system of different spring wheat cultivars Appears in the heading and flowering. Root volume and main stem dry weight, root fresh weight and main stem weight were significantly correlated. There was a significant negative correlation between 1000-grain weight and root number. There was a significant negative correlation between plant height and root length. There was a significant negative correlation between ear length and root number and root length. Therefore, when selecting varieties, not the root quantity is as good as possible, and it is necessary to maintain a certain balance and coordination with the above ground to ensure high yield.