GENETIKA SIFAT KETAHANAN CABAI MERAH TERHADAP VIRUS ChiVMV
Noor Farid(1*), Darini Sri Utari(2)(1) 
(2) 
(*) Corresponding Author
Abstract
Produksi cabai merah terkendala adanya hama dan penyakit tanaman. Virus ChiMV (Chilli Veinal Mottle
Virus) adalah salah satu penyakit tanaman yang dapat menurunkan hasil cabai merah. Perakitan hibrida cabai
merah yang hasil tinggi dan tahan penyakit virus ChiVMV diperlukan informasi antara lain daya gabung umum,
khusus, heterosis, letak gen dan heritabititas. Penelitian ini bertujuan untuk : 1). mendapatkan nilai daya gabung
umum dan khusus, 2). memperoleh nilai heterosis dari sejumlah persilangan yang ada, 3). memperoleh nilai
heritabilitas dari sifat ketahanan terhadap virus ChiVMV. Hasil penelitian adalah 1) genotip cabai merah yang
yang sesuai untuk tetua tahan ChiMV berdasarkan DGU intensitas penyakit: G6321 dan X4271, 2) genotip cabai
merah yang berdasarkan DGK intensitas penyakit yang tahan: X4271xG6321, dan G3257xX427, 3) berdasarkan
nilai DGK, heterosis, intensitas penyakit, dan bobot buah bahwa persilangan antara
X4271xG6321,G3257xx4271 dan G3257x Jatilaba dipilih sebagai genotip tahan ChiMV dan hasil tinggi 4) nilai
heritabilitas arti luas termasuk tinggi tetapi heritabilitas arti sempit berkisar antara tinggi sampai rendah, dan 5)
sifat ketahanan terhadap virus ChiVMV dipengaruhi tetua betina.
Kata kunci : daya gabung, heterosis, heritabilitas, ketahanan virus ChiVMV, efek tetua betina
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ABSTRACTYield of chilli pepper is limited by disease and insect pests. ChiMV virus is off important disease that
could decrease chilli pepper production. Genetic information, such as genetic parameter, combining ability,
heterosis and heritability is required in order to improve resistance variety. The research’s objectives were: 1)
to estimate the general combining ability (GCA) and specific combining ability (SCA), 2) to estimate the
heterosis of several diallel mating, 3) to estimate heritability of resistance to ChiMV virus. It was evidenced that:
1) genetype of chilli pepper having low GCA (desease intensity) were G6321 and X4271, 2) genetypes of chilli
pepper resulted from diallel mating of X4271xG6321, dan G3257xX4271 low high SCA on desease intensity to
ChiMV virus, 3) base on SCA, heterosis, disease intensity, fruit weigh, X4271xG6321,G3257xx4271 dan
G3257x Jatilaba genotypes could be selected for high yielding chili and resistance to ChiMV virus, 4) board
sense heritability values of observed character were high, but range of narrow sense heritability were high to
low, 5) resistance character to ChiMV virus was influenced by maternal effect.
Key words: combining ability, heterosis, heritability, ChiMV resistance, maternal effect
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