Mini tubers are the starting materials of a disease-free seed potato production scheme. Low multiplication rates as well as non-homogenous tuber size distribution are considered the main constraints of a conventional mini tuber production system. In recent years, an aeroponics production system has been developed to overcome the aforementioned problems. It has previously been observed that this system allows multiple harvests with an average yield of 20–50 mini tubers per plant. Several factors, such as cultivar, planting density, nutrient composition of the mist solution, spraying interval and duration and lighting also affect both tuber number and tuber size. However, less attention has been paid to the association of these factors with the aeroponics system. This paper highlights the importance of planting density effect on conventional and aeroponics system. The mini tuber production performances of three potato cultivars (Hermes, Marabel and Sante) were compared at four different planting densities (25, 50, 100 and 200 plants/m²) under both conventional and aeroponics systems in two production cycles. The number of tubers per plant increased with decreasing planting density, being highest at 25 plants/m² and lowest at 200 plants/m² for both cycles. Mean tuber number in the aeroponic system was 19.85 tubers per plant at 25 plants/m² and 13.20 tubers per plant at 200 plants/m². As the number of tubers per plant decreased, so did their size. As planting density increased, tuber yield per plant both in aeroponics and conventional system decreased, but in general, tuber yield per plant was higher in aeroponics than in the conventional system. In the 1st cycle, the number of tubers per m² for Hermes, Sante and Marabel was 290, 364 and 334, respectively, in the conventional system and 787, 1021 and 1168, respectively, in the aeroponics system. Similar numbers were recorded in the 2nd cycle. The average tuber weight was higher in the conventional than in the aeroponics system. Tuber yield/m² in this study varied from 5.9 to 9.3 kg/m² in the aeroponics system, about twice as high as in the conventional system.

迷你块茎是无病种薯生产计划的起始材料。低繁殖率以及不均匀的块茎尺寸分布被认为是常规迷你块茎生产系统的主要限制因素。近年来，已经开发出航空电子生产系统以克服上述问题。以前曾观察到，该系统允许多次收获，每株平均产量为20–50个迷你块茎。几个因素，例如品种，种植密度，薄雾溶液的营养成分，喷洒间隔和持续时间以及光照也影响块茎数量和块茎大小。但是，人们很少关注这些因素与航空电子系统的关联。本文强调了种植密度对常规和航空电子系统的重要性。在四个种植密度下（25、50、100和200株/ m）比较了三个马铃薯品种（Hermes，Marabel和Sante）的微型块茎生产性能。²）在常规和航空电子系统下两个生产周期。随着种植密度的降低，每株块茎的数量增加，在两个周期中最高为25株/ m ²，最低为200株/ m ²。在航空系统中，平均块茎数为25植物/ m ^2时每株19.85个块茎和200植物/ m ^2时每株13.20块茎。随着每株植物块茎数量的减少，它们的大小也随之减少。随着播种密度的增加，航空和常规系统的单株块茎产量均下降，但总体上，航空系统的单株块茎产量高于常规系统。在第一个周期中，每m ²的块茎数对于爱马仕（Hermes），在常规系统中，Sante和Marabel分别为290、364和334，在航空电子系统中，分别为787、1021和1168。在第二个周期中记录了相似的数字。传统块茎的平均块茎重量高于航空系统。在这项研究中，块茎产量/ m ²在航空电子系统中为5.9至9.3 kg / m ²，约为传统系统的两倍。