The research was aimed to screen the local rice germplasms for salinity tolerance. The 104 local rice germplasms were derived of collection of Gene Bank of Indonesian Center for Agricultural Biotechnology and Genetic Resources Research and Development (ICABIOGRAD) were tested to salinity. The activities was carried out in greenhouse of ICABIOGRAD. The 15 day old seedlings were planted in pots soil contained NaCl 0.4%. One accession of rice was planted in 2 pots, each pot contained 4 seedlings. Observation of plant symptom was conducted after 1 month planted. The experiment was carried out in a Completely Randomized Design with 2 replications. The results of the analysis showed there were different responsses among rice accesions to the treatment. Salinity caused dry and dead leaves, there were very significant differences between the varieties for plant height, dry weight plant, number of total leaves, and number of green leaves. There were a high and negative correlation of plant height and total number of leaves with percentage of dead leaves. The result showed 21 accesions were tolerant to moderately−tolerant, while Pokkali as a tolerant check, most tolerant. There were two accessions were tolerant with dead leaf percentage <50%, i.e. Tjempo Brondol (reg. 5800) and Gembira Putih (reg. 20602), whereas Pokkali as resistant check had low dead leaf percentage (16.9%) and 19 accessions were moderately-tolerant with dead leaf percentage <70%, and 82 accesions were sensitive to highly-sensitive.Keywords: tolerance, germplasm, salinity, rice, number of total leaves. ABSTRAKPenelitian ini bertujuan untuk menyaring plasma nutfah padi yang memiliki sifat toleran terhadap salinitas. Sejumlah 104 plasma nutfah padi lokal yang berasal dari koleksi Bank Gen BB Biogen diuji terhadap salinitas. Kegiatan dilakukan di rumah kaca BB Biogen. Bibit padi berumur ±15 hari ditanam pada pot berisi tanah yang sudah dilumpurkan dengan larutan garam NaCl 0,4% (4.000 ppm). Satu aksesi padi ditanam pada 2 pot, masing masing pot berisi 4 tanaman. Setelah berumur 4 minggu dari tanam dilakukan pengamatan meliputi tinggi tanaman, bobot kering akar, bobot kering tanaman, jumlah daun total, jumlah daun hijau, dan jumlah daun mati. Pengujian menggunakan Rancangan Acak Lengkap dengan 2 ulangan. Hasil analisis varians menunjukkan terdapat perbedaan respons plasma nutfah padi terhadap perlakuan salin yang diberikan. Perbedaan sangat nyata terdapat pada tinggi tanaman, bobot kering tanaman, jumlah daun total, dan jumlah daun hijau. Terdapat korelasi yang tinggi dan negatif pada tinggi tanaman dan jumlah daun total dengan persentase daun mati. Hasil pengujian telah terpilih 21 aksesi plasma nutfah padi toleran hingga agak toleran, sedangkan Pokkali sebagai cek sangat toleran. Dua aksesi yang toleran dengan persentase daun mati <50%, yaitu Tjempo Brondol (reg. 5800) dan Gembira Putih (reg. 20602), Pokkali sebagai varietas kontrol dengan tingkat persentase daun mati 16,9%, sedangkan 19 aksesi termasuk kelompok agak toleran dengan persentase da...
<p>Penelitian ini bertujuan untuk mengetahui keragaman sumber daya genetik (SDG) kacang tanah berdasarkan karakter morfoagronomis dan kandungan protein biji. Penelitian dilakukan di Kebun Percobaan Cikeumeuh Balai Besar Bioteknologi dan Sumber Daya Genetik Pertanian (BB Biogen) dan Laboratorium Balai Besar Penelitian dan Pengembangan Pascapanen Pertanian (BB Pascapanen), Bogor pada tahun 2013. Sebanyak 240 aksesi plasma nutfah kacang tanah koleksi bank gen BB Biogen digunakan dalam penelitian ini. Hasil penelitian menunjukkan adanya keragaman yang relatif tinggi pada karakter tinggi tanaman, jumlah polong muda, bobot polong per tanaman, dan hasil polong. Hasil analisis klaster menghasilkan 9 klaster. Di antara 9 klaster tersebut, terdapat satu klaster yang beranggotakan sebanyak 221 aksesi, sedangkan klaster yang lain terdiri atas 1-8 aksesi. Terdapat beberapa aksesi yang terpisah dari klaster yang lainnya dan memiliki sifat yang spesifik. Aksesi-aksesi tersebut di antaranya adalah Leuweungkolot (pertumbuhan tanaman tinggi), Tapir-1 (jumlah cabang banyak), Hobotama (jumlah polong isi banyak), Lokal Tretes dan Lokal Subang (hasil polong tinggi), dan Lokal Subang XI (kandungan protein >30%). Aksesi-aksesi dengan karakteristik spesifik tersebut berpotensi sebagai sumber tetua persilangan.</p>
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.