Pendugaan Parameter Genetik Komponen Hasil untuk Seleksi Tidak Langsung Tanaman Padi (&lt;em&gt;Oryza sativa &lt;/em&gt;L.) Berdaya Hasil Tinggi

Faiqon, M. Mujadid; Supriyanta, Supriyanta; Wulandari, Rani Agustina

doi:10.22146/veg.26168

Cited by 3 publications

(3 citation statements)

References 2 publications

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“…The variability and heritability of yields and yield components in rice found in certain F 2 populations (Kristamtini et al 2016, Widyayanti et al 2017, local varieties (Ahmad et al 2015, Buhaira et al 2014, Zein 2012, and some upland rice varieties (Faiqon et al 2017, Faiqon et al 2017. However segregant population has been reported by Nafisah et al (2007) and Habarurema et al (2012).…”

Section: Introductionmentioning

confidence: 94%

Genetic Variabilities of Agronomic Traits and Bacterial Leaf Blight Resistance of High Yielding Rice Varieties

Nafisah¹,

Roza²,

Yunani³

et al. 2020

Indones. J. Agric. Sci.

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Hundred of high yielding and bacterial leaf blight (Xanthomonas oryzae pv. oryzae, Xoo) resistant rice varieties released since the 1960s are important sources of genetic materials for exploring superior genotypes. The study aimed to evaluate the genetic resistance of 177 rice varieties to Xoo and their agronomic traits. The evaluations were conducted at the Indonesian Center for Rice Research Experimental Station during the wet season (December 2015-March 2016). The bacterial leaf blight resistance was evaluated for Xoo pathotypes III, IV, and VIII using the clipping method. The genetic variation among genotypes was categorized as low (0–10%), medium (10–20%), and high (>20%), whereas the heritability was categorized as low (0-30%), medium (30-60%), and high (>60%). The variability of resistance to Xoo pathotypes, grain yield, and spikelet fertility was low, while the variability of plant height, productive tiller number, filled grain, and total spikelet was medium, and the variability of unfilled grain number was high. The 29 varieties were categorized as superior based on their agronomic traits or resistance to Xoo pathotypes. In conclusion, Batutegi and Fatmawati were superior in the total spikelet number, while Rojolele and Inpari 2 were supreme in the thousand-grain weight. Dodokan had a very short maturity, and Inpari 24, Conde, Kalimas, Angke, Inpari 17, and Inpara 8 had the highest resistance to Xoo pathotypes. The study implies that the identified rice superior genotypes could be used as genetic materials to design cross combinations for higher yield potential and BLB resistance varietal improvement.

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Section: Introductionmentioning

confidence: 94%

Genetic Variabilities of Agronomic Traits and Bacterial Leaf Blight Resistance of High Yielding Rice Varieties

Nafisah¹,

Roza²,

Yunani³

et al. 2020

Indones. J. Agric. Sci.

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“…Karakter hasil, umur, dan mutu merupakan komponen utama dalam kegiatan seleksi galur tanaman padi (Faiqon et al, 2017). Penampilan tanaman F1 pada kedua hasil jenis persilangan menunjukkan karakter bobot gabah bernas per rumpun telah mengalami peningkatan apabila dibandingkan dengan bobot tetua padi lokal Pare Bau yang merupakan karakter utama produksi.…”

Section: Heterosisunclassified

Uji keberhasilan persilangan, heterosis dan penampilan F1 padi lokal Pare Bau x Impari 4

Parari¹,

Riadi²,

Sjahril³

et al. 2022

J. AGRO

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Padi lokal memiliki keunggulan pada rasa dan aroma, namun memiliki produksi yang rendah dan umur panen yang lama sehingga kurang unggul. Upaya untuk memperbaiki genetik padi lokal adalah melalui persilangan buatan. Tujuan penelitian ini adalah untuk mempelajari tingkat keberhasilan persilangan, heterosis, karakter kualitatif dan kuantitatif F1, dan kekerabatan F1 dengan tetuanya. Penelitian dilaksanakan di Kecamatan Tallunglipu, Kabupaten Toraja Utara dari Januari 2019 hingga Juli 2020. Metode persilangan yang digunakan yaitu single cross dan resiprocal cross menggunakan padi lokal aromatik Pare Bau dengan Inpari 4 sehingga diperoleh dua kombinasi persilangan. Hasil penelitian menunjukkan persentase keberhasilan persilangan single cross sebesar 14,4% dan persilangan resiprok sebesar 25,5%. Karakter hasil F1 persilangan resiprok, jumlah gabah bernas per malai (164,2 gabah) dan bobot gabah bernas per rumpun (96,4 g), lebih tinggi dibandingkan F1 single cross. Karakter keharuman pada waktu berbunga terbaik dihasilkan oleh tanaman F1 single cross B1 senilai 92,2% dan B2 senilai 95%. Nilai heterosis dan heterobeltiosis tertinggi adalah F1 resiprok pada semua karakter yang diamati. Generasi F1 hasil single cross (B1 dan B2) memiliki kekerabatan dekat dengan Pare Bau, sedangkan generasi F1 hasil persilangan resiprok (RB1, RB2, RB3, RB4, dan RB5) membentuk kelompok genetik tersendiri tetapi memiliki kekerabatan dekat dengan Inpari 4. ABSTRACTThe rice landrace has a great taste and aroma, but has low yield and late maturity. The artificial crossing is one of ways to improve the genetics performance of the rice landrace. This study purposed to observe the success rate of crosses, heterosis, heterobeltiosis, qualitative and quantitative characters of F1, and genetic relationship of the F1with its parents. This research was conducted in Tallunglipu District, North Toraja Regency from January 2019 to July 2020. The crosses method used were single cross and reciprocal cross using local aromatic Pare Bau and Inpari 4 varieties in order to obtain two cross combinations. The results showed the success rate of the single cross was 14,4% and the reciprocal cross was 25,5%. The characteristics of the F1 reciprocal crosses, the number of fully developed grain per panicle (164,2 grain) and the weight of pithy grain per clump (96,4 g), was higher than the F1 single cross. The best level of aroma character at the time flowering was produced by F1 single cross i.e B1 92,2% and B2 95%. Resiprocal F1 had the highest value of heterosis and heterobeltiosis in all observed characters. Single cross lines (B1 and B2) were closely related to Pare Bau, while reciprocal cross lines (RB1, RB2, RB3, RB4, and RB5) formed separate genetic groups. However, reciprocal cross lines were closely related to Inpari 4.

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“…Daya hasil secara tidak langsung diperbaiki melalui bobot tongkol kering panen; sedangkan brangkasan segar dilakukan secara langsung. Seleksi secara tidak langsung dapat dilakukan apabila sifat yang diperbaiki dengan sifat yang diseleksi berkorelasi positif (Faiqon et al, 2017). Perbaikan genetik suatu populasi akan berhasil apabila dalam populasi tersebut terdapat variabilitas (keragaman) genetik yang tinggi (Andriani et al, 2015).…”

Section: Pendahuluanunclassified

Respon Seleksi Indeks Dasar pada Tanaman Jagung (Zea mays L.) di Lahan Kering

Sudika

Soemeinaboedhy

2020

jstl

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This research aimed to identificate the selection response, the avarage of yield and fresh stover weight of corn during eight cycles of mass selection with basic index technique and observe the genetic parameter of quantitative characteristics. The randomized block design was used to test the selected with 11 treatment populations. Each treatment was replicated 3 times, in order to obtain 33 experimental units. The experimental data were analyzed with analysis of variance at 5 % levels. The average treatment was tested by the LSD0.05. The selection response was obtained from the simple linear regression coefficient between the observed traits with selection cycles. The result of this research, shows the yield and fresh stover weight has a response mass selection with basic index technique per cycle at 0.230 kgplot-1 (3.39 %) and 10.633 gtan-1 (4.21 %), respectively; both of them moderate catagories. The average of yield of eighth cycle population was higher compare to initial population and Gumarang; but the same with Lamuru variety. The weight of fresh stover was the same between treatments. The yield of initial population, eighth cycle population, Gumarang and Lamuru varieties were 5.653 tha-1; 8.035 tha-1; 5.278 t ha-1 and 7.410 tha-1, respectively. The increased of plant height, total number of leaves per plant, number of fresh leaves at harvest and all yield components, were increased the yield. The increased of fresh stover weight occured when there were increased in plant height, total number of leaves, stem diameter and number of fresh leaves at harvest. The characteristic with the higher genetic effect than the environment effect found in weight of ear harvest, length of ear and yield.

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Pendugaan Parameter Genetik Komponen Hasil untuk Seleksi Tidak Langsung Tanaman Padi (<em>Oryza sativa </em>L.) Berdaya Hasil Tinggi

Cited by 3 publications

References 2 publications

Genetic Variabilities of Agronomic Traits and Bacterial Leaf Blight Resistance of High Yielding Rice Varieties

Genetic Variabilities of Agronomic Traits and Bacterial Leaf Blight Resistance of High Yielding Rice Varieties

Uji keberhasilan persilangan, heterosis dan penampilan F1 padi lokal Pare Bau x Impari 4

Respon Seleksi Indeks Dasar pada Tanaman Jagung (Zea mays L.) di Lahan Kering

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