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一、扦样扦样是种子室内检验的关键,扦样是否有代表性,直接关系到检验结果的正确与否。扦样的样品多了,增加了工作量和种子损失;扦取的样品少了,代表性又不够。如何保证扦取的样品既有代表性,数量又比较准确呢? 普通农作物种子(种薯、果穗类除外,国标中有具体规定)的原始样品数量在国标中未作具体规定,研究表明,40000粒种子可以代表一个批量种子的品质,就是说,一个原始样品种子的数量不得少于40000粒。换算成重量,水稻种子千粒重约为25克,原始样品重量为:
First, the sampler is the key to indoor seed testing, sampling is representative, is directly related to the test results are correct or not. Sampling samples more, an increase of workload and loss of seeds; Stem less sample taken, the representative is not enough. How to ensure that the samples taken by the skewer are both representative and accurate in quantity? The number of original samples of ordinary crop seeds (except for seed tubers and fruit spikes, as specified in the national standard) is not specified in the national standard. Studies have shown that 40,000 Granules can represent the quality of a batch seed, that is, the number of seeds per original sample must be no less than 40,000. Converted into weight, the weight of 1000 seeds of rice is about 25 grams, the original sample weight: