TY  - JOUR
ID  - eprints12699
UR  - http://digilib.unila.ac.id/12699/
A1  - 0814013127, Elida Yantama
Y1  - 2012/02/03/
N2  - Abstrak

Konsumsi kedelai di Indonesia terus mengalami peningkatan tetapi tidak diiringi
dengan peningkatan produksi. Salah satu upaya dalam meningkatkan kualitas dan
kuantitas kedelai adalah melalui program pemuliaan tanaman dengan membentuk
varietas unggul baru. Perakitan varietas unggul dapat dilakukan dengan
melakukan persilangan antara dua tetua yang mempunyai keunggulan masingmasing. Pada penelitian ini digunakan populasi F2 hasil persilangan Wilis dan
Malang 2521. Varietas Wilis mempunyai daya hasil yang tinggi tetapi rentan
terhadap penyakit Cowpea Mild Mottle Virus (CPMMV) dan Soybean Stunt Virus
(SSV), sedangkan Malang 2521 memiliki sifat tahan terhadap CPMMV dan SSV
tetapi berdaya hasil rendah. Penelitian ini bertujuan untuk mengetahui nilai
keragaman, heritabilitas dalam arti luas, dan nomor-nomor harapan yang terdapat
pada generasi F2 hasil persilangan Wilis dan Malang 2521.
Penelitian dilaksanakan di Kebun Percobaan Fakultas Pertanian Universitas
Lampung dari bulan November 2011 ? Februari 2012. Percobaan ditata dalam
rancangan percobaan tanpa ulangan. Benih kedelai yang ditanam sebanyak 80
benih F2, 40 benih Wilis, 40 benih Malang 2521. Masing-masing benih yang
dapat tumbuh sebanyak 57 benih F2, 25 benih Wilis dan 30 benih Malang 2521.
Pengamatan dilakukan pada seluruh tanaman yang diuji.
Hasil penelitian menunjukkan hampir semua karakter yang diamati mempunyai
nilai keragaman luas, tetapi pada karakter jumlah cabang produktif dan bobot 100
butir mempunyai nilai keragaman yang sempit. Nilai keragaman yang luas
menunjukkan faktor genetik lebih berperan dalam pembentukan suatu karakter
tanaman. Besaran nilai heritabilitas pada karakter agronomi kedelai adalah tinggi
untuk semua karakter yang diamati. Seleksi nomor-nomor harapan dilakukan
berdasarkan karakter tanaman yang mempunyai nilai keragaman luas, nilai tengah
besar, heritabilitas dalam arti luas yang tinggi, yaitu jumlah polong per tanaman
dan bobot biji per tanaman. Nomor-nomor harapan yang terpilih pada generasi F2
hasil persilangan Wilis x Malang 2521 , yaitu nomor genotipe 7, 46, 72, 31, 62, 58,
23, 10, 13, 70, 74, dan 36.








Abstract

Soybean consumption in Indonesia is increasing but it is not accompanied by
increased production. An effort to improve the quality and quantity of soy is
through plant breeding programs by establishing a new high yielding varieties.
Assembly of high yielding varieties can be done by performing a cross between
the two elders who have their respective advantages. This research study using F2
populations from crosses between Wilis and Malang 2521. Wilis varieties have
high yield but susceptible to disease Cowpea Mild Mottle Virus (CPMMV) and
Soybean Stunt Virus (SSV), while Malang 2521 has a resistant to disease
character but low-yielding. The purposes of this research are for know the value
of diversity, heritability in the broad sense, and the numbers of hope contained in
the F2 generation cross between Wilis and Malang 2521.
This research was conducted at the experimental farm of Agriculture Faculty,
University of Lampung, from November 2011 to February 2012. This research
was done by experimental design without repetition. Soybean seeds are planted
about 80 seeds F2, 40 seeds Willis and 40 seeds Malang 2521. Each seed that
can grow as much as 57 seeds F2, 25 seeds Willis and 30 seeds Malang 2521.
Observations were made on all plants tested.
The results showed almost all the characters were observed have a wide
variability of values, but the character of the productive branches and weighs 100
grains have a narrow value of diversity. A wide variability of values values
showed more genetic factors play a role in shaping the character of the plant.
Magnitude of the heritability of agronomic character of soybean is high for all the
variables observed . Selection of the numbers of hope are based on characters of
plants that have a wide variability of values, a large median value, high
heritability that are the number of pods per plant and seed weight per plant. The
numbers of hope were selected in F2 generation from crosses between Willis and
Malang 2521 are the numbers 7, 46, 72, 31, 62, 58, 23, 10, 13, 70, 74, and 36.
JF  - Digitla Library
TI  - KERAGAMAN DAN HERITABILITAS KARAKTER AGRONOMI
KEDELAI (Glycine max (L) Merill) GENERASI F2 HASIL PERSILANGAN
WILIS DAN MALANG 2521
AV  - restricted
ER  -