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RAISYA NUR SHIRATHI
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Parameter Genetik serta Korelasi Umur Berbunga dan Umur Panen dengan Beberapa Karakter Tanaman Padi pada Dua Ketinggian Tempat
Abstrak (Bhs. Indonesia)
Produksi padi menunjukkan fluktuasi dalam lima tahun terakhir, sementara kebutuhan terus meningkat. Upaya peningkatan produksi dilakukan melalui pemuliaan varietas unggul yang adaptif terhadap berbagai kondisi, termasuk perbedaan ketinggian. Penelitian ini bertujuan mengkaji keragaman genetik, heritabilitas, kemajuan genetik, serta hubungan antar karakter penting pada delapan varietas padi di dataran menengah dan dataran tinggi. Penelitian dilaksanakan Juni 2024 hingga Februari 2025 menggunakan rancangan acak kelompok faktorial tiga ulangan. Hasil menunjukkan bahwa karakter gabah total per malai memiliki KKG dan KKF sedang, heritabilitas arti luas yang tinggi, kemajuan genetik tinggi, berkorelasi nyata dan positif serta berpengaruh langsung terhadap hasil. Umur panen, persentase gabah isi per malai, dan gabah total per malai berpengaruh langsung secara positif terhadap hasil.
Abtrak (Bhs. Inggris)
Rice production has shown fluctuations in the last five years, while demand continues to increase. Efforts to increase production are carried out through breeding superior varieties that are adaptive to various conditions, including height differences. This study aims to examine genetic diversity, heritability, genetic progress, and relationships between important characters in eight rice varieties in the middle and highlands. The research was carried out from June 2024 to February 2025 using a randomized design of a factorial group of three replicates. The results showed that the total grain character per panicle had a moderate KKG and KKF, high heritability of broad meaning, high genetic progress, was significantly and positively correlated and had a direct effect on the results. Harvest age, percentage of grain content per panicle, and total grain per panicle have a direct positive effect on yields.
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