Morphological Variability in Leaf of Indonesian Rice Landraces and Its Correlation to Bacterial Leaf Blight Disease Resistance

Rohaeni, Wage Ratna; Yuliani, Dini

doi:10.18343/jipi.24.3.258

Cited by 10 publications

(6 citation statements)

References 18 publications

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“…In terms of leaf surface, all of the local varieties observed were hairless. Leaf surface presumably has a close relationship with resistance to leaf blight diseases of which the more hairless the surface, the lower the chance of the diseases [15]. Other findings also explained that some phenotypic traits indeed have a relationship with sheath blight resistance in rice [16].…”

Section: Morphological Traitsmentioning

confidence: 93%

Characterization of five local varieties of rice (Oryza sativa L.) in east java, Indonesia

Rahmawati

Santika

Fauzi

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Some regions in Indonesia, especially East Java, have abundant local varieties of rice. However, these germplasms have not been optimally developed in plant breeding. Characterization ranked as the first step in plant breeding to identify morphological and agronomic characteristics of the germplasms. This study aims to characterize several local rice varieties in East Java, including ‘Ketan Genjah’ (V1), ‘PIM’ (V2), ‘Pendok’ (V3), ‘Padi Hitam’ (V4), and ‘Padi Merah’ (V5) to point out each strength in several parameters to be used as a potential gene source for plant breeding. The results of this study indicated that the varieties studied have several distinct morphological and agronomic characters with each other. In terms of plant height, leaf length, pithy grain percentage, grain loss percentage, and the weight of 1000 grain, ‘Pendok’ showed superiorities compared to other varieties. In addition, ‘Pendok’ also had the highest yield per clump together with ‘Ketan Genjah’ at 151.32 g and 150.82 g, respectively. ‘PIM’ had the longest panicle length, whereas in terms of number of tillers, ‘Ketan Genjah’, ‘Padi Hitam’, and ‘Padi Merah’ were the highest among the varieties studied.

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Section: Morphological Traitsmentioning

confidence: 93%

Characterization of five local varieties of rice (Oryza sativa L.) in east java, Indonesia

Rahmawati

Santika

Fauzi

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…The shape of the leaves of the rice seedlings observed on the 21st day of growth did not align with the development of the seedlings, indicating that the increase in leaf longevity did not correspond with higher doses of gammaray irradiation. Rohaeni et al (2019) suggested that phenotypic diversity reflects genotypic diversity, which is influenced by environmental diversity and escalating doses. The average number of leaves during the seedling phase was observed to be 4 leaves for all treatments.…”

Section: Number Of Leaves (Pieces)mentioning

confidence: 99%

Orientation Of Effective Irradiation Dosage In Local Genetic Rice Improvement (Oryza sativa L.) Kuantan Singingi District Using Induced Mutation

Marlina,

Syarif,

Gustian

et al. 2024

JUATIKA

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The staple food of the Indonesian population is rice. Utilizing mutation induction in rice research can lead to a significant increase in genetic diversity. This increased genetic diversity in the initial population will streamline the process of selecting desired traits. The primary objective of this study is to identify the most effective dose for inducing genetic diversity in local rice from Kuantan Singingi. The research focuses on the Singgam Putih genotype. Gamma radiation experiments are conducted at the Center for Isotope and Radiation Application (PAIR) BATAN in South Jakarta. Various radiation doses are administered, ranging from 0 Gy to 350 Gy. The planting process takes place in the greenhouses of the Dhabit Farm Experimental Garden in Kari Teluk Kuantan. Data collection includes observations on sprouting percentage, seedling height, number of leaves, and root length. The LD50 value is calculated based on the regression analysis of sprouting percentage. The findings indicate that the rate of sprouted seeds decreases as the gamma irradiation dose increases. Additionally, seedling height and root length decrease with higher doses of gamma irradiation. At the same time, the number of leaves remains unaffected by the radiation dose, which may lead to changes in leaf shape. The LD50 value for the Singgam Putih genotype is determined to be 313.63 Gy. Ultimately, the optimal dose of gamma-ray irradiation is identified as 300 Gy.

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“…Hal ini disebabkan tingginya kandungan selulosa dan hemiselulosa yang menyebabkan dinding sel kaku dan skelenkim menjadi lebih tebal. Menurut (Rohaeni & Yuliani, 2019), morfologi permukaan daun berkorelasi positif dengan ketahanan terhadap penyakit hawar daun bakteri.…”

Section: Deteksi Keberadaan Rtbvunclassified

Ketahanan 50 galur harapan padi terhadap penyakit tungro

Khaerana,

Rosida,

Komalasari

2023

J. AGRO

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Green leafhoppers is the main vector for tungro disease infection. Tungro is a rice disease which is characterized with stunted plants, yellow orange leaves, and a reduced number of tillers. The research aimed to determine the resistance of 50 rice lines to tungro disease. This research was conducted in Augmented Design with 5 blocks. The observation was held on 50 expected tungro resistant rice lines, with 2 check varieties, Inpari 36 and Ciherang. Experiment in field were included observation on number of imago and nymph green leafhoppers for each line test during 2, 4, 6 and 8 weeks after planting, and the incidence of tungro infection. Leaf which indicated tungro infection was isolated for its DNA and PCR analysis at the virology laboratory of the tungro disease research station. The results showed that the number of green leafhopper (imago and nymph) for the 43 test lines were less than the check varieties of 5% LSI test. The incidence of tungro was very low in the field. The results of the PCR test showed that the rice line infected by tungro virus was only rice line number 7. Thus, there are 43 promizing lines that can be recommended for future research to obtain tungro resistant varieties.ABSTRAK Wereng hijau merupakan vektor utama penyebaran penyakit tungro. Tungro merupakan penyakit padi dengan ciri utama tanaman kerdil, daun berwarna kuning oranye, dan jumlah anakan berkurang. Tujuan penelitian ini adalah untuk mengetahui ketahanan 50 galur padi terhadap penyakit tungro. Penelitian ini menggunakan rancangan augmented yang terbagi dalam 5 blok. Pengamatan dilakukan terhadap 50 galur padi harapan tahan tungro, dengan 2 varietas cek, yaitu Inpari 36 dan Ciherang. Penelitian di lapangan meliputi pengamatan terhadap jumlah imago dan nimfa wereng hijau pada masing-masing galur uji selama 2, 4, 6 dan 8 minggu setelah tanam, serta insidensi serangan tungro. Sampel daun tanaman yang terindikasi terserang tungro diuji untuk mengkonfirmasi keberadaan virus tungro secara molekuler dengan isolasi DNA (PCR) dan RNA (RT/PCR) di laboratorium virologi Loka Penelitian Penyakit Tungro. Hasil penelitian menunjukkan terdapat 43 galur uji yang signifikan lebih sedikit jumlah wereng hijau (nimfa dan imago) dibanding varietas cek pada uji LSI 5%. Insidensi tungro sangat rendah di lapangan. Hasil uji PCR menunjukkan bahwa galur uji yang terinfeksi virus tungro RTSV hanya galur nomor 7. Dengan demikian, terdapat 43 galur yang direkomendasikan pada penelitian berikutnya untuk memperoleh varietas tahan tungro.

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Morphological Variability in Leaf of Indonesian Rice Landraces and Its Correlation to Bacterial Leaf Blight Disease Resistance

Cited by 10 publications

References 18 publications

Characterization of five local varieties of rice (Oryza sativa L.) in east java, Indonesia

Characterization of five local varieties of rice (Oryza sativa L.) in east java, Indonesia

Orientation Of Effective Irradiation Dosage In Local Genetic Rice Improvement (Oryza sativa L.) Kuantan Singingi District Using Induced Mutation

Ketahanan 50 galur harapan padi terhadap penyakit tungro

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