Hasriadi Mat Akin
Bidang Proteksi Tanaman Jurusan Agroteknologi, Fakultas Pertanian, Universitas Lampung

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Biological and molecular variability among PStV (peanut stripe virus) strains isolated from various peanut growing areas in Indonesia Hasriadi Mat Akin; Sudarsono Sudarsono; Rusmilah Suseno
Buletin Hama dan Penyakit Tumbuhan Vol 11, No 2 (1999): Buletin Hama dan Penyakit Tanaman
Publisher : Buletin Hama dan Penyakit Tumbuhan

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Abstract

Biological and molecular variability among PStV (peanut stripe virus) strains isolated from various peanut growing areas in Indonesia was studied based on their pathogenicity and coat protein genes. Six strains of PStV causing different types of symptoms on peanut leaves were used to study biological and molecular variability among these strains. Biological variability of the PStV strains was evaluated based on their pathogenicity on peanut cultivars, Gajah and Landak. While analysis of the coat protein gene was used to study the molecular variability of PStV strains. Based on their pathogenicity, six PStV strains could be grouped into three groups, medium, strong, and very strong strains. Analysis of a coat protein gene showed the variability of the PStV strains were 0-2.1percent based on nucleotide sequence and 0-1.4percent based on predicted amino acid sequence. There was no correlation between biological and molecular variability.
UJI KETAHANAN TERHADAP COWPEA MILD MOTTLE VIRUS PADA SEMBILAN BELAS POPULASI F1 TANAMAN KEDELAI (Glycine max [L.] Merril) HASIL PERSILANGAN DIALEL Maimun Barmawi; Setyo Dwi Utomo; Hasriadi Mat Akin; Sulastri Ramli
JURNAL AGROTROPIKA ##issue.vol## 14, ##issue.no## 2 (2009): Juli-Desember, Jurnal Agrotropika
Publisher : JURNAL AGROTROPIKA

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Abstract

EVALUATION OF THE RESISTANCE TO COWPEA MILD MOTTLE VIRUS  OF 19 F1 POPULATION OF SOYBEAN DEVELOPED BY DIALEL CROSSES. The objective of this study was to evaluate the resistance to cowpea mild motlle virus (CPMMV) of 19 F1 population of soybean showing good agronomic characters. The F1 population were generated by complete diallel crosses involving a resistant parent (Mlg 2521), a moderately resistant parent (B 3570), and three susceptible parents (Orba, Wilis, and GKUL-1).  The experiment was arranged in a completely randomized block design consisted of two replications.  The results indicated that F1 population B 3570 x Mlg 2521 was resistant to CPMMV and superior in seed weight per plant, number of branches, plant height, total number of pods, total number of seeds, and the number of healthy seeds.  F1 population Wilis x B 3570 and B 3570 x Wilis were moderately resistant and less superior in agronomic characters than B 3570 x Mlg 2521.