Penampilan Fenotipik dan Beberapa Parameter Genetik Delapan Kultivar Kacang Tanah Pada Lahan Sawah

Ruchjaniningsih,; Imran, Ahmed; Thamrin, M.; Kanro, M. Zain

doi:10.24198/zuriat.v11i1.6665

Cited by 2 publications

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“…Nilai heritabilitas tiga belas karakter yang diamati untuk ketiga sistim persilangan umumnya sedang sampai tinggi dengan nilai h 2 diatas 20 persen. Menurut Ruchjaningsih et al (2000), heritabilitas termasuk tinggi jika bernilai h 2 > 50%, sedang apabila h 2 ≥ 20%, dan rendah apabila nilai h 2 < 20%. Pada GSK menyerbuk sendiri (full sib) karakterkarakter yang memiliki nilai h 2 tinggi adalah TB (84,0%), JBD (63,0%), PP (68,0%), JT (82,0%), JS (83,0%), dan JBB (75,0%).…”

Section: Pendugaan Nilai Heritabilitas Dalam Arti Luasunclassified

Analisis Heritabilitas dan Sidik Lintas Karakter Vegetatif dan Generatif

Miftahorrachman¹,

Sulistyowati²

2016

Bull. Palma

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ABSTRAK Keragaman komponen seleksi yang berpengaruh terhadap kecepatan berbunga dan produksi buah kelapa Genjah Salak belum banyak diketahui. Penelitian bertujuan mendapatkan metode penyerbukan dalam peningkatan produktivitas kelapa Genjah Salak dengan menghitung heritabilitas tiga belas karakter vegetatif dan generatif yang berkaitan langsung atau tidak langsung dengan produksi buah. Penelitian dilakukan di Kebun Percobaan Paniki, Manado, Sulawesi Utara, dari 2011 sampai 2014, menggunakan rancangan acak kelompok, tiga perlakuan dan empat ulangan. Perlakuan terdiri atas tiga sistem penyerbukan, yaitu penyerbukan sendiri (full sib), penyerbukan terkendali (half sib) dan penyerbukan alami (open pollination). Tiga belas karakter yang diukur adalah tinggi batang, lingkar batang, jumlah bekas daun, jumlah daun, panjang daun, panjang petiole, jumlah anak daun, panjang anak daun, jumlah tandan, jumlah spikelet, jumlah bunga betina, kecepatan berbunga, dan jumlah buah per tandan. Analisis heritabilitas menggunakan rumus Singh dan Chaudary. Analisis sidik lintas mengacu pada metoda matriks Singh dan Chaudary. Kelapa Genjah Salak dengan sistem penyerbukan sendiri memiliki waktu berbunga 34,74 bulan dan tinggi batang 51,75 cm, lebih baik dibandingkan dengan kelapa Genjah Salak yang menyerbuk terkendali (waktu berbunga 35,99 bulan; tinggi batang 52,51 cm) dan penyerbukan alami (waktu berbunga 36 bulan; tinggi batang 56,76 cm). Nilai heritabilitas pada kelapa Genjah Salak menyerbuk sendiri yang berkorelasi langsung dengan karakter hasil adalah tinggi batang (r = 0,383; h2 = 84,0%), jumlah bekas daun (r = 0,442; h2 = 63,0 %), dan jumlah bunga betina (r = 0,344; h2 = 75,0%). Metode terbaik untuk meningkatkan produk- tivitas kelapa Genjah Salak adalah dengan sistem penyerbukan sendiri karena memiliki nilai heritabilitas tinggi dan berkorelasi langsung dengan karakter hasil.Kata kunci: Heritabilitas, koefisien sidik lintas, sistim penyerbukan, kelapa Genjah Salak. Heritability and Path Analysis on Vegetative and Generative Characters of Salak Dwarf Coconut Generated from Three Pollination System ABSTRACT The diversity of Salak Dwarf components that can be used as a criterion of selection affecting the rate of flowering and yield have not been investigated. The research aims to obtain the best method of pollination in improvement of Salak dwarf coconut productivity by calculating the heritability of thirteen vegetative and generative characters. Twelve characters attributed to the production of fruits were investigated. The research was arranged in a randomized block design with three pollination system as the treatments, four replications, conducted at the Paniki Experimental Garden, North Sulawesi, from 2011 until 2014. Treatments consisted of self-pollination system (full sib), controlled pollination system (half sib) and open pollination system. Thirteen characters measured were stem height, girth of stem, number of leaf scars, number of leaves, leaf length, petiole length, number of leaflets, length of leaflet, number of bunches, number of spikelet, number of female flowers, day of flowering, and number of fruit per bunch. Analysis of heritability using the formula of Singh and Chaudary. Path coefficient analysis using matrix model by Shing and Chaudary. Salak dwarf coconut with self-pollination system has better effect of rate of flowering (34.74 month), and height of stem (51.75 cm) compared to the salak dwarf coconut with controlled pollination (rate of flowering 35.99 months; height of stem 52.51 cm) and Salak dwarf coconut with open pollination (rate flowering 36 months; height of stem 56.76 cm). To improve the productivity of Salak dwarf coconut, the best method of pollination is self-pollinated. Heritability value on self-pollinate of Salak dwarf coconut which correlates directly with the character of yield was the height of stem (r =0.383; h2=84.0%), the number of leafscars (r =0.442; h2=63.0%), and the number of female flowers (r =0344; h2=75.0%). The best method to increase the productivity of Salak dwarf coconut through self pollination since it has high heritability values and correlates directly with the character of yield.Keywords : Heritability, coefficient of path analysis, pollination systems, salak dwarf coconut.

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Section: Pendugaan Nilai Heritabilitas Dalam Arti Luasunclassified

Analisis Heritabilitas dan Sidik Lintas Karakter Vegetatif dan Generatif

Miftahorrachman¹,

Sulistyowati²

2016

Bull. Palma

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“…Penampilan tanaman pada suatu lingkungan tumbuh merupakan hasil interaksi antara faktor genetik dengan lingkungan. Oleh karena itu tanggapan suatu genotipe tanaman terhadap lingkungan berbeda pada lingkungan yang berbeda, atau tanggapan tanaman berbeda terhadap kondisi lingkungan yang sama (Ruchjaniningsih et al, 2000). Pengaruh interaksi antara genotipe dan lingkungan merupakan salah satu tantangan bagi pemulia tanaman dalam mengembangkan galur hasil seleksi, dimana galur yang diuji menunjukkan daya hasil yang berbeda di setiap lokasi pengujian (Widyastuti dan Satoto, 2012).…”

Section: Analisis Ragamunclassified

Performance of Rice Tungro Resistant Promising Line in Endemic Area

Muliadi

2016

Informatika Pertanian

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Tungro disease is one of the important diseases of rice because it has a high potential for causing damage. The use of varieties resistant to the tungro disease effectively prevent an explosion tungro disease. Testing of promising lines resistant to the tungro at several locations is a stage in the breeding program before a line is released as a new variety that has resistance to tungro disease, as well as having the potential for high yields and good adaptation at several locations. Six of tungro resistant promising line (OBSTG02-137, OBSTG02-124, OBSTG02154, OBSTG02-130, OBSTG02-56, dan OBSTG02-37) and four check varieties (Inpari 9 Elo, Tukad Unda, Ciherang, and IR64) were evaluated for their yield potential and adaptability at 16 locations in tungro endemic area during the dry season of 2011-2013. The experiment was arranged in a randomized block design with 3 replications. Each line were transplanted in 4 m x 5 m plot size with plant spacing 25 cm x 25 cm. Observation were made on yield, 50% flowering date, plant heights, panicle number per hill, number filled and unfilled spikelets per panicle, and weigh of 1000 grains in gram. The results showed that effect of genotype x location interaction was significantly different for all component observed. Based on the performance of grain yield and yield components obtained, four lines i.e. OBSTG02-137 (6.74 t/ha), OBSTG02-124 (6.20 t/ha), OBSTG02-154 (6.37 t/ha ), and OBSTG02-130 (5,92 t/ha) has a high yield with the support of filled grain number and weight of 1000 seeds is high. Based on the combined value of bi and the general average of yield, then line OBSTG02-137, OBSTG02-154, and OBSTG02-130 were suitable to adapt to all environments, OBSTG02-124 is adapted in an optimal environment, OBSTG02-56 and OBSTG02-37 were adapted to the less productive environment.

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Penampilan Fenotipik dan Beberapa Parameter Genetik Delapan Kultivar Kacang Tanah Pada Lahan Sawah

Cited by 2 publications

References 0 publications

Analisis Heritabilitas dan Sidik Lintas Karakter Vegetatif dan Generatif

Analisis Heritabilitas dan Sidik Lintas Karakter Vegetatif dan Generatif

Performance of Rice Tungro Resistant Promising Line in Endemic Area

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