Daya Gabung Galur-Galur Downy Mldew Resistance (DMR) dan Quality Protein Maize (QPM) Berdasarkan Analisis Line x Tester

Ruswandi, Dedi; Basuki, Mahmud; Annissa,; Ruswandi, S.; Yuwariah, Yuyun

doi:10.24198/zuriat.v17i1.6762

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“…Hibrida yang berpotensi hasil tinggi dihasilkan dari pasangan galur inbred dari populasi yang memiliki kelompok heterotik yang berbeda (Pabendon et al 2007). Persilangan antara tetua yang memiliki latar belakang genetik yang jauh menghasilkan keturunan hibrida F 1 yang mempunyai nilai heterosis tinggi dibandingkan tetua yang memiliki latar belakang genetiknya dekat (Ruswandi et al, 2006). Stoskopf et al (1993) menjelaskan bahwa galur inbred dihasilkan setelah melalui proses silang dalam (selfing) dan seleksi untuk karakter yang diinginkan selama lima sampai tujuh generasi.…”

Section: Pendahuluanunclassified

Studi Keragaman Genetik Dua Puluh Galur Inbred Jagung Manis Generasi S7

Yuwono

Murti

Basunanda

2016

Ilmu Pertanian (Agricultural Science)

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The genetic diversity is basic need of plant breeding. The experiment aimed to evaluate the genetic diversity of twenty sweet corn inbred lines, to estimate broad sense heritability, genetic correlation and path analysis, and grouping the sweet corn inbred lines. Randomized complete block design was used with three replications. ANOVA, genetic correlations, and cluster analysis were used to analysis the data. The genetic diversity coefficients was indicate the high genetic diversity, that was potential for hybrid sweet corn breeding programs. Most characters had high broad sense heritability. The ear weight has a significantly positive correlation with plant height, ear height, number of seed rows, ear length and ear diameter. The ear length and ear diameter have a high direct influence on the ear weight. Cluster analysis grouped the inbred lines into three groups at 70% similarity coefficient level. The group which have the lowest similarity coefficient level indicated wide genetic distance. The wide genetic distance groups can be used as a parents for composing of hybrids with high level of heterosis.

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Section: Pendahuluanunclassified