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1品种抗旱性评价的意义大豆的抗旱性是高产稳产的重要性状,为多基因控制的数量遗传性状,是众多因素、多种机制共同作用的结果,不仅与形态性状、生理生化性状有关,而且还受到干旱发生的时期、强度及持续时间等因素的影响,最终通过各种性状在不同生育期的一系列变化体现出来。因此,对大豆品种生长的不同时期,进行抗旱性多指标综合性状评价,可以避免单一指标的片面性和不稳定性。
The significance of evaluating the drought resistance of a variety of soybean Soybean’s drought resistance is an important trait of high and stable yield. It is a quantitative genetic trait controlled by multiple genes and is a result of many factors and various mechanisms. It is not only related to morphological traits and physiological and biochemical traits, But also affected by such factors as the duration, strength and duration of drought, and finally through a series of changes in different growth stages of various traits. Therefore, it is possible to avoid the unilateralism and instability of the single index by evaluating the multi-index comprehensive traits of drought resistance in different periods of growth of soybean varieties.