Evaluation size and number of yellow potato tubers under different planting densities using zero-inflated models

A field study was carried out on the cultivation of yellow diploid potato (Solanum tuberosum Phureja Group) to evaluate influence planting density associated with distances between plants 30, 40, and 50 cm rows paths 100 tuber count sizes less than 2 cm, 2-4 4-6 more 6 cm. At time harvest tubers, they were classified by size respective made. The modelling counts done means usual negative binomial regression inflated zeros option. zero-inflated models showed a significant effect sowing in that superior 4 while model it case lower results are attributes interest both agronomic management this crop industrial so relationship we found can be adopted areas generate desired for improving production guiding process industrialization.