Browsing by Author "Hidayatun ...[at al], Nurul"

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    Exploring Aluminum Tolerance at Seedling Stage in Rice (Oryza sativa, Linn) by Using Modified Magnavaca Nutrient Solution
    (Sekretariat Komisi Nasional Plasma Nutfah, 2017) Hidayatun ...[at al], Nurul; Balai Besar Penelitian dan Pengembangan Bioteknologi dan Sumberdaya Genetik Pertanian
    Aluminum (Al) toxicity is considered as one of the main constraints for crop production in acidic soil. This study was subjected to observe the response of root and shoot growth of eight rice varieties under Al stress in hydrophonic solution. A modified Magnavaca’s solution was used to compare the effect of Al stress using different variables which were relative root elongation (RRE), relative shoot length (RSL) and relative root weight (RRW). The experiment was conducted in split-plot experimental design. Eight rice varieties were screened in four Al levels (0 μM, 540 μM, 750 μM, and 1,300 μM). Root length, shoot length, and root dry weight were measured after 7 days of treatment, then the RRE, RSL, and RRW were calculated. The results showed that Al significantly reduced RRE and RSL but increased RRW. RSL was reduced as the Al concentration increased while RRE reduction started only at 750 μM Al concentration. It was observed that RRW was significantly higher under 540 and 750 μM Al concentration. However, no significant difference was observed in 1,300 μM Al concentration. The increase in root weight is partly attributed by the thickening of the root wall, but this effect was diminished due to root hair inhibition under 1,300 μM Al concentration. Among these three variables observed, root and shoot lengths indicated better variables in determining Al tolerance in rice, compared to root weight. However, these variables were not sufficient to represent root and shoot growth inhibition, and not sufficient to be used solely for Al toxicity screening
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    Pengaruh Introgresi Lokus Pup1 terhadap Pertumbuhan Bibit Padi pada Kondisi Kahat Fosfor
    (BB Biogen, 2018-12) Hidayatun ...[at al], Nurul; Balai Besar Penelitian dan Pengembangan Bioteknologi dan Sumberdaya Genetik Pertanian
    Kekurangan unsur Fosfor (P) pada tanah akan berakibat terhambatnya pertumbuhan tanaman. Tanaman bertahan hidup dalam cekaman kekurangan P dengan cara meningkatkan kemampuan penyerapan P dan meningkatkan efisiensi pemanfaatannya. Penelitian ini bertujuan mengetahui komposisi genetik genotipe padi yang memiliki lokus Pup1 dan respons pertumbuhan akar dan daun pada kondisi ketersediaan P yang berbeda. Tiga genotipe padi, yaitu IR74, IR74-Pup1, dan Kasalath, diuji dengan menggunakan marka Single Nucleotide Polymorphism (SNP) untuk mengetahui komposisi genetiknya. Percobaan respons tanaman padi terhadap kahat P dirancang dengan Rancangan Acak Lengkap dengan empat ulangan dan dilakukan secara hidroponik dalam larutan hara Yoshida yang diperlakukan dengan kondisi ketersediaan P yang berbeda. Hasil genotyping menggunakan marka SNP menunjukkan bahwa genotipe IR74-Pup1 memiliki tingkat kesamaan sebesar 84,4% dengan tetuanya (IR74) dan segmen donor (lokus Pup1) sebesar 13,6%. Pengaruh introgresi lokus Pup1 terhadap pertumbuhan panjang total, luas permukaan, diameter, dan volume akar bervariasi pada setiap stadia pertumbuhan. Genotipe IR74 dan IR74-Pup1 mengalami hambatan pertumbuhan akar dan daun pada kondisi kahat P, namun introgresi lokus Pup1 memberikan performa pertumbuhan yang lebih bagus, baik pada kondisi P tersedia maupun kahat P. Keberadaan lokus Pup1 secara nyata meningkatkan kemampuan tanaman dalam mengurangi dampak penghambatan pertumbuhan yang diakibatkan oleh kahat P.
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    Pengelolaan Sumber Daya Genetik Tanaman Pertanian Untuk Mendukung Pengembangan Varietas Unggul
    (IAARD Press, 2018-11) Hidayatun ...[at al], Nurul; Balai Besar Penelitian dan Pengembangan Bioteknologi dan Sumberdaya Genetik Pertanian
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    Ragam dan Ketersediaan Plasma Nutfah Ubi untuk Mendukung Ketahanan Pangan dan Pertanian Berkelanjutan
    (KOMISI NASIONAL SUMBER DAYA GENETIK, 2021-09-15) Hidayatun ...[at al], Nurul; Balai Besar Penelitian dan Pengembangan Bioteknologi dan Sumberdaya Genetik Pertanian
    One of the important aspects in the program to achieve food security is food diversification, which can be pursued by maximizing the potential of existing crops diversity. As part of one of the regions of origin and center of tubers diversity, Indonesia has sufficient biological diversity to achieve food security. Unfortunately, information regarding the availability of this tubers diversity is still very limited and has not been managed properly. This paper is intended to gain an overview of the availability and diversity of various tubers crops in Indonesia. Materials and information were collected from various reference sources available for sweet potato, cassava, taro and blue taro, canna, arrowroot, and yam crops. Studies showed that there were a diversity of tuber crops that have been used by the community as a source of food. Various tuber plants have adequate nutritional content to be used as an alternative of functional food source. Tuber crops are spread throughout Indonesia and showed diversity both at the species level and genetic resources. However, there were indications of diversity decline in some areas. Existing ex-situ conservation efforts do not fully cover the diversity that exists in the field. A more comprehensive and more coordinated action and follow-up effort are needed in inventorying, managing, and exploring its potential to save the diversity that still exists in the community.