Genotype season interaction effects on the performance ofsoybean lines

By: Luis Pereira, Trikoesoemaningtyas, DestaWirnas

Key Words: Adaptation, Genotype season interaction, Soybean

Int. J. Agron. Agri. Res. 9(5), 42-50, November 2016.

Abstract

The purposeofthis study wastoobtaininformationon yield potentialof soybean linestestedinthe first dryseason(MK1) and theseconddryseason(MK2). Theinformationwas used to select soybean lines which are most stable under the two different seasonsto bereleased as varieties. This research was conductedintwogrowing seasonsfrom March toSeptember2014 in Bogor.The genetic materialsused were 7promising linesand3nationalvarieties. The designused wasa randomized completelyblockdesignwithgenotypeastreatmentrepeated3timesineach season. Observations were madeonagronomic charactersof plant height, numberof branches, number of nodes, number of pods, number oftotalpods, days to flowering, days to harvesting, weight of 100grains, grain weightper plant, andproductivity. The results showedthatWeightperplantandproductivitywas notaffectedbythe interactionbetweengenotypeandseason. The average productivityforallgenotypesin the first seasonwas3.1tonsha-1 is greaterthanthe secondseasonthat is equal to1.8tonsha-1.SC-1-8 was recommeded for both seasons.