Evaluation of new NS maize hybrids using biplot analysis
2012
Stojaković, M., Institute of Field and Vegetable Crops, Novi Sad (Serbia) | Ivanović, M., Institute of Field and Vegetable Crops, Novi Sad (Serbia) | Bekavac, G., Institute of Field and Vegetable Crops, Novi Sad (Serbia) | Nastasić, A., Institute of Field and Vegetable Crops, Novi Sad (Serbia) | Purar, A., Institute of Field and Vegetable Crops, Novi Sad (Serbia) | Mitrović, B., Institute of Field and Vegetable Crops, Novi Sad (Serbia) | Stanisavljević, D., Institute of Field and Vegetable Crops, Novi Sad (Serbia)
The study analyzed two-year results of a testing of 20 new maize hybrids from FAO MG 600 as compared to a standard. Data on the hybrids NS6683, NS6686, NS281633, and NS396432 are discussed in the paper in greater detail. In order to study grain yield, grain moisture, root and stalk lodging, and resistance to pests and diseases, field trials using a RCB design with four replicates were conducted in six locations in 2009 and five locations in 2010. The results were presented in the form of GGE biplots in order to rank hybrids relative to the standard while taking into account the genotype x environment interaction and to identify the highest-yielding genotypes in different environments. It was determined that the new NS hybrids had higher grain yield than the standard by 0.883 to 1.720 t/ha, lower grain moisture by 0.85 to 2.54%, better tolerance to root and stalk lodging, and pest and disease resistance on a par to the standard. The study identified so-called ideal locations for particular hybrids, which may be of use when determining which areas the hybrids are best suited for.
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