Performance of Single-Cross Maize Hybrids From Diverse Cross Combination of Parental Inbred Lines in Acid Soil Conditions. Proceeding UISF, Bandar Lampung 2016

Hayati, PKD Performance of Single-Cross Maize Hybrids From Diverse Cross Combination of Parental Inbred Lines in Acid Soil Conditions. Proceeding UISF, Bandar Lampung 2016. In: Proceedings of the USR International Seminar on Food Security: Improving Food Security: The Challenges for Enhancing Resilience to Climate Change, Bandar Lampung, August 23-24, 2016.

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Abstract

Maize is one of the strategic commodities in Indonesia that receive special attention to be enhanced due to food security and sovereignty. Utilizing high yielding maize varieties along with sustainable agronomic practices offer an effective strategy for improving maize productivity in acid soils. Ten single cross hybrids derived from a diverse tropical inbred lines and two check varieties were evaluated in two locations with two acid soil conditions in order to obtain hybrids that produce high yield in acid soils. The evaluations were carried out in a randomized complete block design with three replications during 2014 – 2015. The locations were in Padang with two soil conditions, i.e. limed- and unlimed-acid soil with the order Ultisol and in West Pasaman with two soil conditions, i.e. a good soil with the order Andisol and natural acid soil with the order Ultisol. Data were subjected to the analysis of variance using the Proc GLM of the SAS software. Results showed that there was no hybrid that consistently produced high yield in all soil acidity conditions. The hybrids that produced high yields in acid soil conditions produced lower yields in a good soil compared to the commercial hybrid check variety.Key

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