SELEKSI MASSA POSITIP S1 PADA 12 GALUR KEDELAI HASIL PERSILANGAN VARIETAS WILIS DAN OCUMANI
DOI:
https://doi.org/10.30737/agrinika.v1i1.295Abstract
RINGKASAN
Tujuan penelitian ini adalah untuk meningkatkan efisiensi dan efektivitas dalam proses seleksi untuk mendapatkan genotipe yang lebih baik dan perbaikan genetik pada berat biji per tanaman dalam populasi yang dipilih melalui seleksi massa positif. Rancangan Acak Kelompok Lengkap diadopsi dalam penelitian ini dengan genotipe kedelai dua belas sebagai perlakuan dan 3 ulangan. Variabel yang diamati adalah `tinggi tanaman, waktu panen (hari), jumlah cabang, jumlah simpul-subur, jumlah polong unggulan per tanaman, jumlah polong kosong per tanaman, berat 100 biji (gram), jumlah biji per tanaman, berat biji per tanaman, berat biji per plot (gram), dan biologi patogen. Berdasarkan varians analisis, hampir semua parameter yang diamati adalah tidak signifikan, variasi genetik sempit, heritabilitas dan respons yang rendah tetapi pada panen yang jatuh tempo hasil efek yang bertentangan. sebaiknya dipilih kondisi lingkungan yang sesuai bagi tanaman, agar dalam seleksi faktor lingkungan tidak terlalu dominan dalam mempengaruhi penampakan fenotipe. Hasil pengamatan biologi pathogen dapat digunakan sebagai penelitian lanjutan tentang resistensi kedelai terhadap penyakit karat daun.
Kata kunci: seleksi massal, heritabilitas, respon seleksi.
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