Methods for diploid true potato seed (TPS) production and handing are crucial for inbred-hybrid potato breeding. This study determined the effects of mother plant nutrition on average TPS weight and germination kinetics as modeled by Gompertz curves. Additionally, it characterized germination of stratified TPS and TPS imbibed in water or gibberellic acid (GA₃). Seeds were produced by three interspecific hybrids between diploid relatives of cultivated potato and diploid lines derived from cultivated potato. Effects of stratification on seed dormancy and germination rate were genotype-dependent. With one exception, GA₃-treated seeds reached 50% germination as fast or faster than stratified seeds and seeds imbibed in water. Mother plant nutrition was varied by fertilizing with two nutrient solutions that differed in composition. Effects of fertilizer type on germination were modest, and 100-seed weight did not differ between fertilizer types. These findings support previous research showing that GA₃ treatment effectively promotes robust TPS germination.

二倍体真马铃薯种子（TPS）的生产和处理方法对于近交杂交马铃薯育种至关重要。这项研究通过Gompertz曲线确定了母本植物营养对TPS平均重量和发芽动力学的影响。另外，其特征在于分层的TPS和吸收在水或赤霉素（GA ₃）中的TPS的发芽。栽培马铃薯的二倍体近缘种和栽培马铃薯的二倍体系之间的三个种间杂种产生种子。分层对种子休眠和发芽率的影响是基因型依赖性的。除_3种例外，GA ₃处理过的种子的发芽速度比分层种子和浸入水中的种子快或快，达到50％。通过使用两种成分不同的营养液施肥来改变母本植物的营养。肥料类型对发芽的影响适中，并且100种种子的重量在肥料类型之间没有差异。这些发现支持了以前的研究，表明GA ₃处理有效促进了TPS的萌发。