Keragaan Stabilitas Hasil Bawang Merah

• Main Author: Perpustakaan UGM, i-lib
• Format: Article NonPeerReviewed
• Published: [Yogyakarta] : Universitas Gadjah Mada 2003
• Subjects: Jurnal i-lib UGM
• Online Access: https://repository.ugm.ac.id/22714/; http://i-lib.ugm.ac.id/jurnal/download.php?dataId=5635
• Institution: Universitas Gadjah Mada

ABSTRACT Eight varieties of shallot, i.e. Probolinggo, Parman, Kuning, Biru-sawah, Biru-pasir, Tiron-sawah, Tiron-pasir and Bima, were tested for their yield potential at two different locations (sand-dune and rice-field) during wet season and dry season in 2002. The experiments were arranged in Randomized Completely Block Design with three blocks as replication. The experimental unit consisted of 100 plants planted with 15 cm x 20 cm spacing. The aims of this research were to identify the stability and adaptability of the tested materials. Adaptability and yield stability of each variety were determined based on stability model of Eberhart and Russell (1966) and Finlay and Wilkinson (1963) with a regression coefficient (pi), deviation from regression (812) and yield of each variety as stability and adaptability parameters. The results of this research showed that varieties Probolinggo, Tiron-sawah and Biru-pasir were well adapted over all testing environments and their yields were stable. On the other hand, Parman and Kuning varieties were categorized as unstable varieties and well adapted in favorable environment, i.e. in the rice-field during dry season. Birusawa h and Tiron-pasir varieties were adapted to unfavorable environment, especially in the sand-dune during dry season. Variety bima was not well to all the testing environments and the yield was susceptible to the environmental changes. Key words: stability, adaptability, yield, shallot.