Researches on Some Biological and Ecological Characteristics of Sweet Corn

Lately, genetic factor involvement in climate change response is of great importance. Addressing some issues regarding the behavior of agronomic characters of production in a set of hybrids may lead to recommendations on the choice of the most suitable hybrids for growing in Transylvanian Plateau. Thus, in 2016, we set up an experience in two locations of Cluj county, Turda and Viişoara, on the lower terrace of Arieş river. Biological material chosen for this study was represented by seven hybrids, of which six indigenous Prima, Estival, Estival M, Dulcin, Deliciul Verii (released by SCDA Turda), Delicios (INCDA Fundulea) and foreign hybrid Jubilee (produced by Syngenta). The earliest hybrids Prima and Estival, have the lowest average number of grains/row, with very significant differences compared to control (experience average). Estival, Estival M and Jubilee hybrids show the highest number of rows of grains/cobs, with very significant differences over the average

RESEARCHES ON SOME BIOLOGICAL AND ECOLOGICAL CHARACTERISTICS OF SWEET CORN

Sweet corn is a stenotermal plant that endures limited temperature variations requiring also adequate levels of humidity. Many farmers assume some risks in this direction, but they can sometimes compromise a significant percentage of culture. So many times to reach the phrase "first on market gets high-prices" is to resort to sowing too early and not to purchase early hybrids. Objective of this paper was to elucidate some aspects regarding behavior of certain hybrids of sweet corn with regard to certain attributes of production under Transylvanian Plateau conditions. Also, for growing surfaces cultivated with sweet corn, the biological material was also analyzed in terms of adaptability to mechanized harvesting. Delicios hybrid is distinguished by the lowest values of the coefficient of variation in the two years, indicating a good uniformity of cob insertion and the possibility of mechanized harvesting