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测定种子活力是预测种子在田间能否迅速而整齐地萌发,幼苗是否能够健壮和快速地生长,它是关系到最终产量的一种潜力。据我们调查,种子活力的强弱不但表现在产量上,而且在某些蔬菜上还影响到质量。如北京地区香菜种子贮存数年后,种子老化,虽然发芽率降低不显著,但在田间表现提前抽苔,失去食用价值,特别是在土壤条件低劣的情况下尤为明显。近年来,种子活力问题在国外已普遍被重视,国内有不少单位已开始了这项工作。鉴于目前还没有一种适用于测定各种种子活力的简便易
Determining seed vigor is predictive of whether the seed germinates rapidly and neatly in the field and whether the seedling can grow robustly and rapidly, which is a potential for the final yield. According to our survey, the strength of the seed vigor is not only reflected in the yield, but also affects the quality of some vegetables. For example, after the seeds of cilantro are stored in Beijing for several years, although the germination rate is not significantly reduced, the bolting in the field and the loss of food value are especially obvious in the case of poor soil conditions. In recent years, the issue of seed vitality has generally been taken seriously in foreign countries. Many units in China have started this work. In view of the fact that at present there is no simple and easy method for measuring the vigor of various seeds