Daya Gabung Beberapa Varietas Padi (Oryza sativa L.) pada Persilangan Dialel Menggunakan Metode Griffing II

Diallel crossing is a method that is widely used to determine the ability to combine each individual so that it can identify the potential elders to be used in crossbreeding programs to assemble high yielding varieties. This experiment aims to determine the combining power of dialelic crosses of several varieties of rice using the Griffing II method, carried out in the experimental field of the Faculty of Agriculture, Mataram University in Nyiur Lembang Village, Narmada District, West Lombok Regency, from February to July 2019. This experiment uses the method experiments carried out in the field. The materials used in this experiment were four parents, namely IPB 3S variety, Situ Patenggang variety, Inpari 32 and G11 strain and the phenotype of the cross between the four parents. The experimental results showed that the effects of general affinity and special affinity for all observed characters (plant height, number of productive tillers, number of non-productive tillers, panicle length, number of filled grain, number of empty grain and weight of 100 grains) were significantly different, except on the effect of general affinity for the number of non-productive tillers showed no significant difference. The results of the combined power analysis of the four elders were positive, so it can be said that the four elders would get good results when crossed with a number of other genotypes.

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Pengaruh Pola Tanam Terhadap Pertumbuhan Gulma dan Komponen Produksi Tanaman Padi Sawah (Oryza sativa L.)

Jurnal Agrium ◽

10.29103/agrium.v14i2.875 ◽

2017 ◽

Vol 14 (2) ◽

pp. 9

Author(s):

Irwansyah Irwansyah ◽

Bhaidawi Bhaidawi ◽

Muhammad Yusuf N

Keyword(s):

Oryza Sativa ◽

Plant Height ◽

Oryza Sativa L ◽

Block Design ◽

Cropping Pattern ◽

Panicle Length ◽

Cropping Patterns ◽

Weed Growth ◽

Randomized Block Design ◽

Planting System

The principle of planting system “Jajar Legowo” is to increase the plant population by adjusting the spacing so that the crop will have a row of plants interspersed by empty rows where the spacing is on the row of rows half the spacing between rows. The purpose of this study to investigate the effect of different rice cropping patterns on weed growth. The research was conducted at Gampong Lhok Iboh, Baktiya district Barat North Aceh Regency started from March to June 2017. This research used non factorial Randomized Block Design which consists factor with 2 treatments: P1 (conventional cropping pattern) and P2 (jajar legowo). Observations included the amount of dominance (%), plant height (cm), number of tillers, panicle length, number of grains per panicle, and weight of 1000 grains per plot. The results revealed that cropping pattern had an effect on weed growth and production component of paddy. Planting system “jajar legowo” 2: 1 (25cm x 25 cm x 40 cm) was much better compared to conventional cropping pattern

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Genetic Diversity of Local Rainfed Rice (Oryza Sativa L.)

Bangladesh Journal of Plant Breeding and Genetics ◽

10.3329/bjpbg.v23i2.9324 ◽

1970 ◽

Vol 23 (2) ◽

pp. 41-46 ◽

Cited By ~ 1

Author(s):

MA Siddique ◽

ESMH Rashid ◽

M Khalequzzaman ◽

MZ Islam ◽

MS Ahmed ◽

...

Keyword(s):

Genetic Diversity ◽

Oryza Sativa ◽

Plant Height ◽

Oryza Sativa L ◽

Flag Leaf ◽

Mean Value ◽

Leaf Length ◽

Panicle Length ◽

Rainfed Rice ◽

Cluster Distance

Genetic diversity of 58 traditional local rice genotypes was studied under rainfed condition through Mahalanobis D2 statistic for grain yield and yield contributing characters. The genotypes were grouped into nine clusters. The inter-cluster distances were higher than intra-cluster distances indicating wider genetic diversity among the genotypes of different clusters. The intra-cluster distances were lower in all the cases reflecting homogeneity of the genotypes within the clusters. The cluster III contained the highest number of genotypes (13) and the cluster I contained the lowest (2). The highest intra-cluster distance was noticed for the cluster I and the lowest for cluster VII. The highest inter-cluster distance was observed between cluster I and IV followed by cluster IX and IV, cluster I and VI and the lowest between cluster V and III. Regarding inter-cluster distance, the genotypes of cluster IV showed high genetic distance from all other clusters. The genotypes from cluster IV could be hybridized with the genotypes of other characters of other clusters for producing transgressive segregants. Based on positive value of vector 1 and vector 2, flag leaf length, plant height, panicle length and grain breath had maximum contribution towards genetic divergence. The highest cluster means for yield, 1000 grain weight and grain breath were obtained from cluster VIII. The highest plant height, flag leaf width and panicle length were found in cluster II while the lowest mean value for yield, days to flowering and maturity, unfilled grain and the highest mean value for grain length breadth ratio were found in cluster II. Therefore, more emphasis should be given on cluster IV and cluster VIII, cluster I and cluster IV for selecting genotypes as parents for crossing with the genotypes of cluster II which would be used to produce new recombinants with desired traits. Key words: Genetic diversity; D2 analysis; cluster analysis; rice (Oryza sativa L)DOI: http://dx.doi.org/10.3329/bjpbg.v23i2.9324 Bangladesh J. Pl. Breed. Genet., 23(2): 41-46, 2010

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Impact of seasonal changes on spikelets per panicle, panicle length and plant height in rice (Oryza sativa L.)

Euphytica ◽

10.1007/s10681-010-0332-7 ◽

2011 ◽

Vol 179 (2) ◽

pp. 319-331 ◽

Cited By ~ 9

Author(s):

Mallikarjuna Rao Kovi ◽

Xufeng Bai ◽

Donghai Mao ◽

Yongzhong Xing

Keyword(s):

Oryza Sativa ◽

Plant Height ◽

Seasonal Changes ◽

Oryza Sativa L ◽

Panicle Length ◽

Spikelets Per Panicle

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Effects of Ethyl methanesulfonate (EMS) on Seedling and Yield Contributing Traits in Basmati Rice

10.20944/preprints202103.0453.v1 ◽

2021 ◽

Author(s):

Muhammad Rashid ◽

Areeqa Shamshad ◽

Ljupcho Jankuloski

Keyword(s):

Oryza Sativa ◽

Plant Height ◽

Root Length ◽

Oryza Sativa L ◽

Shoot Length ◽

Chemical Mutagenesis ◽

Panicle Length ◽

Ethyl Methane ◽

Chemical Mutagens ◽

Sterile Spikelet

Increasing genetic diversity in crop plants has been used for chemical mutagenesis. Through the application of various mutagenic agents, over 430 new varieties have been derived as rice mutants (Oryza sativa L.) Chemical mutagens such as ethyl methane sulphonate (EMS), diepoxybutane derivative (DEB), sodium azide, and gamma ray, x-ray, and quick neutron irradiation have been commonly used to induce a large number of functional variations in rice and others crops. Among chemical mutagens, ethyl methane sulfonate (EMS) is the alkylating agent most widely used in plants because it induces nucleotide substitutions to be extremely frequent, as detected in various genomes. In this study, seeds of potential genotype of the popular variety, (Oryza sativa L. Super Basmati variety) were treated with EMS at concentrations of 0.25%, 0.50%, 0.75%, 1% and 1.5%. Various measurements on the M1 generation determined EMS sensitivity. As concentration of applied EMS increased, will decrease in germination, shoot length, root length, plant height, productive tillers, Panicle Length, Total Spikelet, sterile spikelet and fertility under field conditions were observed in M1 generation as compared to the non-treatment control. Emergence, shoot length, root length, plant height, productive tillers, Panicle Length, Total Spikelet, sterile spikelet and fertility also decreased with increases in EMS mutagenesis in an approximately linear fashion. The LD50 values were observed based on growth reduction of seedlings after EMS treatment with 0.25% and 0.50% on the rice variety (Oryza sativa L. spp.).

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I Heritabilitas Galur Padi Beras Hitam (Oryza sativa L) Hasil Seleksi Pedigree F1

Jurnal Sains Teknologi & Lingkungan ◽

10.29303/jstl.v5i1.103 ◽

2019 ◽

Vol 5 (1) ◽

pp. 25

Author(s):

IGP Muliarta Aryana ◽

Bambang Budi Santoso ◽

AAK Sudharmawan ◽

Muhammad Sukri

Keyword(s):

Oryza Sativa ◽

Field Experiment ◽

Plant Height ◽

Analysis Of Variance ◽

Oryza Sativa L ◽

Research Station ◽

Panicle Length ◽

Black Rice ◽

Pedigree Selection

This study aims to determine Heritability value of F1line of black rice characters result from pedigree selection. This research conducted by field experiment carried out at the research station of Faculty of Agriculture, University of Mataram. Nyur Lembang Village, Narmada District, West Lombok Regency, NTB Province from February to June 2018. This research empioyed Randomized Complete Blok Desing (RCBD) by 40 genotipes as treatments with replications, so there are 80 of experimental units. Observed data analized by analysis of variance (ANOVA). The result of research showed that high of heritability value gained from flowering age plant height, panicle length, number of grains filled, and weight of 100 grains. Low heritability criteria are shown by number of productive tillers, number of empty grains, weight of grains per clumpsand yield (ton.ha-1)

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Fine Mapping and Cloning of the Novel Gene Qph-IAA30, which Simultaneously Affects the Plant Height, Panicle Length, Spikelet Number and Yield in Rice (Oryza Sativa L.)

10.21203/rs.3.rs-779960/v1 ◽

2021 ◽

Author(s):

Niqing He ◽

Guangping Zhan ◽

Fenghuang Huang ◽

Xianghua Zheng ◽

Chaoping Cheng ◽

...

Keyword(s):

Oryza Sativa ◽

Plant Height ◽

Agronomic Traits ◽

Oryza Sativa L ◽

Gene Prediction ◽

Rice Genome ◽

Rice Cultivar ◽

Rice Cultivars ◽

Panicle Length ◽

Higher Plant

Abstract Background: The plant height is one of the most important agronomic traits in rice (Oryza sativa L.), and the introduction of semidwarf rice led to record yield increases throughout Asia in the 1960s. Near-isogenic lines (NILs) are the most powerful tools for the detection and precise mapping of quantitative trait loci (QTLs).Results: In this study, 176 NILs were produced from the crossing and back-crossing of two rice cultivars. Specifically, Jiafuzhan, an indica rice cultivar, served as the recipient, and Hui1586, a restorer japonica cultivar, served as the donor. Using the 176 NILs, we identified a novel QTL for plant height in NIL36. First, we mapped the QTL to a 31-kb region between the markers Indel12-29 and Indel12-31. The rice genome annotation indicated the presence of three candidate genes in this region. Through gene prediction and cDNA sequencing, we confirmed that the target gene in NIL36 was Osiaa30, hereafter referred to as qPH-iaa30. Further analysis showed that qPH-iaa30 was produced by a 1-bp deletion in the first exon that resulted in the premature termination of OsIAA30. Knockout experiments showed that qPH-IAA30 was responsible for the plant height phenotype. Although qPH-IAA30 from Jiafuzhan showed a higher plant height, the plant also exhibited a longer panicle length, more spikelets and a higher yield. Taken together, our results demonstrate that qPH-IAA30 has good specific application prospects in future rice breeding.Conclusions: 176 NILs are produced from two rice cultivars, using the 176 NILs, a novel qPH-iaa30 for plant height is identified, and the qPH-IAA30 gene is responsible for the plant height phenotype.

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PENGARUH CAMPURAN COCOPEAT DAN ROCK PHOSPHATE TERHADAP PERTUMBUHAN DAN HASIL TIGA VARIETAS PADI GOGO (Oryza sativa L.) PADA MEDIUM ULTISOL

Jurnal Solum ◽

10.25077/jsolum.15.1.17-25.2018 ◽

2018 ◽

Vol 15 (1) ◽

pp. 17 ◽

Cited By ~ 1

Author(s):

Rahmi Yulia ◽

Nelvia Nelvia ◽

Erlida Ariani

Keyword(s):

Oryza Sativa ◽

Plant Height ◽

Rock Phosphate ◽

Upland Rice ◽

Oryza Sativa L ◽

Growth And Yield ◽

Panicle Length ◽

Green House ◽

Main Plot ◽

Plot Design

The research aims to study the effect of mixture of cocopeat and rock phosphate on growth and yield of three varieties of upland rice in Ultisols medium. The research was conducted at the Green House of the Faculty of Agriculture, University of Riau, Pekanbaru from March to August 2017. The research used Split Plot Design. The main plot were upland rice consist of three varieties (Situ Bagendit, Situ Patenggang and Inpago 8). The subplots were mixture of cocopeat 10 t ha-1 with rock phosphate (RP) doses 0, 30, 45, and 60 P2O5 kg ha-1. The parameters observed were plant height, number of maximum tillers and productive tillers, panicle length, flowering age, number of grain panicle-1, weight of dry milled grain and weight of 1000 grain. The results showed that the application of mixture of cocopeat doses 10 t ha-1 and RP doses 30 – 60 P2O5 kg ha-1 have effect to plant height, panicle length, and weight 1000 grain for Situ Bagendit, Situ Patenggang and Inpago 8 compare to without RP, but tended increase number of maximum and productive tillers and decrease flowering age. The application cocopeat doses 10 t ha-1 and RP doses 30 P2O5 kg ha-1 increased number of filled grain panicle-1 and weight of dry milled grain on three varieties, weight of dry milled grain Situ Patenggang > Inpago 8 > Situ Bagendit on each doses of RP and have number of productive tillers of these varieties 1,5 – 2 is greater than its descriptions.Keywords : rock phosphate, ultisol, upland rice

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Efektivitas Metode Seleksi Pedigree dan Modified Bulk pada Tiga Populasi Sorgum (Sorghum bicolor [L.] Moench)

Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) ◽

10.24831/jai.v47i3.27661 ◽

2020 ◽

Vol 47 (3) ◽

pp. 275-282

Author(s):

Dewi Andriani ◽

Desta Wirnas ◽

Dan Trikoesoemaningtyas

Keyword(s):

Plant Height ◽

Agronomic Traits ◽

Test Results ◽

Selection Methods ◽

Coefficients Of Variation ◽

Significant Difference ◽

Pedigree Selection ◽

High Heritability ◽

Augmented Design ◽

Materials Used

Sorghum has a growing popularity for food, feed, biofuel, and therefore needs to be developed. The research aimed to compare the effectiveness of pedigree and modified bulk selection methods for improving yield in three sorghum populations. The genetic materials used were 60 F6 lines from three populations, namely PI 10-90-A x Numbu, PI 150-20-A x Numbu and PI 150-20-A x Kawali which had been selected using pedigree and modified bulk methods. The experiment was conducted from October 2018 to February 2019 at the Cikabayan Experimental Station of IPB University, Dramaga, Bogor. The experiment was arranged in an augmented design with six checks, namely Kawali, Numbu, PI 10-90-A, PI 150-20-A, Samurai 1, and Samurai 2 which were replicated four times. Observations were made on agronomic traits and yield. Plant height and grain weight per panicle had high heritability and large genotypic coefficients of variation. The contrast test results showed significant differences between populations in plant height, panicle length, days of harvesting and 100-seed weight. On the other hand, no significant difference was observed among selection methods, indicating that both methods were equally effective for increasing sorghum yield. The pedigree selection and modified bulk selection increased grain yield per panicle by 14.1 g and 18.2 g respectively. Bulk of the best genotypes in early generation could be an alternative of bulk selection method. Keywords: contrast test, differential selection, genotypic coefficient of variation, heritability

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Morphological Characteristics of Two-rowed Barley (Hordeum sativum ssp. distichum L.) Landraces Originating from Herzegovina

Агрознање ◽

10.7251/agren1804287k ◽

2019 ◽

Vol 19 (4) ◽

pp. 287

Author(s):

Ivan Kovačević ◽

Đurađ Hajder ◽

Danijela Kondić ◽

Dragan Mandić ◽

Desimir Knežević

Keyword(s):

Plant Height ◽

Morphological Characteristics ◽

Grain Weight ◽

Spike Length ◽

Grain Number ◽

Arithmetic Means ◽

Significant Treatment ◽

Barley Landrace ◽

Grain Number Per Spike ◽

Significant Difference

Barley is a small grain cereal, tolerant to high temperatures and drought. Due to this characteristic, it can be regarded as a promising crop for production in dry conditions. Research on five spring landraces of two-rowed barley lasted two experimental years (2011 and 2012) in agro-ecological conditions of Banja Luka. In the experiment, the standard cropping practices were applied, without irrigation. The experiment was set as a complete randomized design with four replications. All measurements were performed in 10 plants per replication. Morphological characteristics included plant height (cm), spike length (cm), grain number per spike and grain weight per spike (g). Obtained data were subjected to two-way analysis of variance with landrace and growing season as main factors. Significant treatment or interaction effects were further analysed by Fisher's least significant difference (LSD) test, often utilized for pairwise comparisons among arithmetic means. In all tested traits the maximum average values were obtained in barley landrace AM2, i.e. the plant height (86.89 cm), the spike length (8.90 cm), the grain number per spike (24.74) and the grain weight per spike (1.17 g). Due to these facts, two-rowed barley landrace AM2 can be marked as the most productive in this research, bearing a potential for different crop breeding practices.

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Kualitas Fisik Beras (Oryza sativa L.) Mutan M4 Hasil Iradiasi Sinar Gamma

Jurnal Ilmiah Mahasiswa Pertanian ◽

10.17969/jimfp.v4i1.10247 ◽

2020 ◽

Vol 4 (1) ◽

pp. 32-42

Author(s):

Nanda Funna Ledita ◽

Efendi Efendi ◽

Rita Hayati

Keyword(s):

Oryza Sativa ◽

Gamma Ray ◽

Amylose Content ◽

Oryza Sativa L ◽

Mutant Line ◽

Milled Rice ◽

Physical Quality ◽

Significant Difference ◽

Gamma Ray Irradiation

Abstrak. Beras (Oryza sativa L.) merupakan salah satu tanaman pangan yang berfungsi sebagai tanaman pokok selain gandum dan jagung di Indonesia, dikarenakan mengandung nutrisi yang dibutuhkan tubuh seperti karbohidrat, protein, air dan lemak. Meningkatnya jumlah penduduk maka permintaan terhadap beras semakin meningkat. Permintaan tersebut sangat ditentukan oleh selera konsumen yang dipengaruhi oleh kualitas beras yaitu mutu fisik (ukuran dan bentuk butiran, rendemen dan pengapuran), mutu tanak (kadar amilosa dan suhu gelatinisasi) dan mutu rasa (tekstur dan aroma). Penelitian ini bertujuan untuk mengetahui kualitas beberapa galur padi mutan M4 hasil iradiasi sinar gamma. Penelitian ini dilaksanakan di Laboratorium Ilmu dan Teknologi Benih, Laboratorium Analisis Pangan dan Hasil Pertanian, Laboratorium Ilmu Nutrisi dan Teknologi Pakan dan Laboratorium Fisiologi Tumbuhan Fakultas Pertanian Universitas Syiah Kuala, serta Laboratorium Departemen Ilmu dan Teknologi Pangan Fakultas Teknologi Pertanian Institut Pertanian Bogor, yang berlangsung pada bulan April hingga Juli 2018. Rancangan yang digunakan dalam penelitian ini adalah Rancangan Acak Lengkap (RAL) pola non faktorial dengan 3 ulangan. Perlakuan penelitian ini berupa galur (G) dengan 5 taraf, yaitu i-Snb (G0) kontrol, O-39e (G1), O-57d (G2), O-57e (G3) dan O-88j (G4). Parameter yang diamati yaitu sifat fisik beras (densitas kamba, derajat sosoh, dimensi beras rendemen beras giling, dan warna). Hasil penelitian menunjukkan bahwa galur mutan M4 berpengaruh sangat nyata terhadap kualitas sifat fisik rendemen beras giling dan warna nilai L (kecerahan). Rendemen beras giling terbaik galur O-39e (70,33%) dan warna nilai L (kecerahan) galur O-88j (117,90). Perlakuan terbaik secara kumulatif untuk sifat fisik beras yaitu pada i-Snb.. Physical Quality of Rice (Oryza sativa L. ) M4 Mutant Results of Gamma Ray IrradiationAbstract. Rice (Oryza sativa L.) is one of main food which the function is to be staple food beside wheat and corn in Indonesia because it contains nutrients such as carbohydrates, protein, water, and fat. Towards the increasing populations, the demand of rice is increasing as well. The demand is largerly depends on the consumer taste affected by the quality of rice which are physical quality (size and grain shape, rendemen, and calcification), cooked quality (amylose content and gelatinization temperature) and flavor quality (texture and smell). The purpose of this research was to investigate the quality of rice from several M4 mutant line resulting from gamma ray irradiation. This research was conducted at the Laboratory of Seed Science and Technology and Laboratory of Food and Agricultural Analysis, Faculty of Agriculture, Syiah Kuala University, Banda Aceh, from the month April to July 2018. The design used in this study was based on a non-factorial completely randomize design with 3 replications and continued with the Least Significant Difference Test (LSD) level of 5% on a significant F test results. The results showed that the M4 mutant line had a very significant effect on the quality of physical properties, the yield of milled rice and the best color L (brightness), namely on the O-88j and O-39e line.

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