In the case of sweet corn grown for the canning industry, the most important aspect for the producers is to produce the raw material that best meets the canning industry's expectations, in addition to the highest yield possible in this form. The purpose of this experiment is to investigate the highest possible number of plants that does not yet have a negative effect in terms of the size of the cobs and the quantity of shelled grains. Currently, the most commonly used number of sweet corn plants by farmers producing for the canning industry is 65 thousand plants/hectare, which can certainly meet the expectations of the canning industry. Therefore, in our research, we examined the highest possible number of plants for a newly marketed sweet corn hybrid, which does not yet have a negative effect on the harvested cob yield, the size of the cobs, and the quantity of shelled grains, but increasing the number of plants is still profitable. In the experiment, we examined the same sweet corn hybrid in a total of 6 different populations in 4 repetitions in Szarvas, in 2023. The populations applied were as follows: 56; 58; 62.5; 65; 71 and 75 thousand plants/hectare. During the experiment, we examined the weight of the harvested cob yield and shelled grains, as well as the length of the cobs. In addition, the experiment also extended to the profitability of the populations. The experiment pointed out that increasing the number of plants per hectare of the examined sweet corn hybrid is worthwhile in terms of increasing the quantity of cob yield and shelled grain yield. However, above 65 thousand plants per hectare, the length of the cobs showed a minimally decreasing tendency, but even so, it still met the needs of the processing industry.

sweetcorn, plant population, cob yield, shelled grain yield, canning industry

agronomy

Presentation: poster