Selection of maize hybrids with high productive potential for Bolivian Chaco

Abstract

The INIAF Maize Program has guided this research with the objective of identifying advanced hybrids introduced from germplasm of CIMMYT. During the 2011 season, 18 hybrids with the code 11TTWCLY were introduced, from this set two simple hybrids were promising and later in 2012 and 2013, the adaptation of the same was evaluatede against other 13 hybrids also introduced from CIMMYT, showing their agronomical stability and acceptance by Chaco region growers of the hybrids INIAF H1 and INIAF HQ2, these have its own certificate of registration. The adaptation performance shows higher yields in the conditions of the Chaco in Tarija and Chuquisaca and lower productivity in the tropical conditions of Santa Cruz. According to the regression analysis, the change in environmental conditions affects the response of the hybrids equally, we found any genotype × environment interaction. Currently, the genetic seed is produced by INIAF and certified seed through alliances with associated producers, sub-governors, the National Seed Company, among others, fulfilling the production of greater volume of hybrid seed at prices more accessible to producers.