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Resistance Selection of 12 Genotypes of Chrysanthemum Against Thrips parvispinus (Thysanoptera: Thripidae)

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Hama Thrips parvispinus merupakan salah satu faktor pembatas dalam sistem produksi bunga krisan. Penggunaan tanaman genotipe tahan merupakan salah satu upaya pengendalian hama T. parvispinus pada krisan yang ramah lingkungan. Penelitian ini bertujuan mengetahui ketahanan beberapa genotipe krisan mutan Balai Penelitian Tanaman Hias (BALITHI) terhadap hama spesies T. parvispinus. Penelitian dilaksanakan di rumah lindung Instalasi Penelitian dan Pengkajian Teknologi Pertanian (IP2TP) BALITHI Segunung dari bulan Januari sampai Desember 2019. Sebanyak 10 genotipe krisan mutan BALITHI dan 2 genotipe introduksi (Fiji Kuning dan Fiji Putih) digunakan dalam penelitian dengan Rancangan Acak Kelompok 3 tiga ulangan.  Metode skrining menggunakan hama T. parvispinus. yang ada di alam atau tanpa investasi. Variabel pengamatan meliputi intensitas serangan hama, persentase serangan hama, persentase bunga layak panen, dan diameter bunga. Hasil penelitian menunjukkan krisan mutan BALITHI Mayang Ratih agak tahan terhadap hama Thrips ini dengan rata-rata intensitas dan persentase serangan hama paling rendah serta bunga layak panen tertinggi serta diameter bunga memenuhi syarat sebagai bunga krisan potong tipe standar. Genotipe Mayang Ratih selanjutnya dapat direkomendasikan sebagai tetua tahan T. parvispinus. untuk program pemuliaan bunga potong krisan.   Kata kunci: bunga, Dendrathema grandiflora, hama, intensitas serangan
Title: Resistance Selection of 12 Genotypes of Chrysanthemum Against Thrips parvispinus (Thysanoptera: Thripidae)
Description:
Hama Thrips parvispinus merupakan salah satu faktor pembatas dalam sistem produksi bunga krisan.
Penggunaan tanaman genotipe tahan merupakan salah satu upaya pengendalian hama T.
parvispinus pada krisan yang ramah lingkungan.
Penelitian ini bertujuan mengetahui ketahanan beberapa genotipe krisan mutan Balai Penelitian Tanaman Hias (BALITHI) terhadap hama spesies T.
parvispinus.
Penelitian dilaksanakan di rumah lindung Instalasi Penelitian dan Pengkajian Teknologi Pertanian (IP2TP) BALITHI Segunung dari bulan Januari sampai Desember 2019.
Sebanyak 10 genotipe krisan mutan BALITHI dan 2 genotipe introduksi (Fiji Kuning dan Fiji Putih) digunakan dalam penelitian dengan Rancangan Acak Kelompok 3 tiga ulangan.
  Metode skrining menggunakan hama T.
parvispinus.
yang ada di alam atau tanpa investasi.
Variabel pengamatan meliputi intensitas serangan hama, persentase serangan hama, persentase bunga layak panen, dan diameter bunga.
Hasil penelitian menunjukkan krisan mutan BALITHI Mayang Ratih agak tahan terhadap hama Thrips ini dengan rata-rata intensitas dan persentase serangan hama paling rendah serta bunga layak panen tertinggi serta diameter bunga memenuhi syarat sebagai bunga krisan potong tipe standar.
Genotipe Mayang Ratih selanjutnya dapat direkomendasikan sebagai tetua tahan T.
parvispinus.
untuk program pemuliaan bunga potong krisan.
   Kata kunci: bunga, Dendrathema grandiflora, hama, intensitas serangan.

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