We conducted an experiment in Niger to evaluate the performance of hermetic triple layer (Purdue Improved Crop Storage- PICS) bags for the preservation of shelled and unshelled groundnut Arachis hypogaea L. Naturally-infested groundnut was stored in PICS bags and woven bags for 6.7 months. After storage, the average oxygen level in the PICS bags fell from 21% to 18% (v/v) and 21%–15% (v/v) for unshelled and shelled groundnut, respectively. Identified pests present in the stored groundnuts were Tribolium castaneum (Herbst), Corcyra cephalonica (Stainton) and Cryptolestes ferrugineus (Stephens). After 6.7 months of storage, in the woven bag, there was a large increase in the pest population accompanied by a weight loss of 8.2% for unshelled groundnuts and 28.7% for shelled groundnut. In PICS bags for both shelled and unshelled groundnuts, by contrast, the density of insect pests did not increase, there was no weight loss, and the germination rate was the same compared to that recorded at the beginning of the experiment. Storing shelled groundnuts in PICS bags is the most cost-effective way as it increases the quantity of grain stored.

中文翻译：

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PICS 袋子在尼日尔安全地储存带壳和带壳的花生

我们在尼日尔进行了一项实验，以评估密封三层（Purdue 改进作物储存 - PICS）袋用于保存带壳和带壳花生 Arachis hypogaea L 的性能。自然感染的花生在 PICS 袋和编织袋中储存 6.7 个月. 储存后，带壳花生和带壳花生的 PICS 袋中的平均氧气含量分别从 21% 降至 18% (v/v) 和 21%–15% (v/v)。在储存的花生中发现的害虫是 Tribolium castaneum (Herbst)、Corcyra cephalonica (Stainton) 和 Cryptolestes ferrugineus (Stephens)。贮藏6.7个月后，在编织袋中害虫数量大幅增加，带壳花生减重8.2%，带壳花生减重28.7%。带壳和带壳花生的 PICS 袋，相比之下，害虫的密度没有增加，体重没有下降，发芽率与实验开始时记录的相同。将带壳花生存放在 PICS 袋中是最具成本效益的方式，因为它可以增加储存的谷物数量。