scholarly journals Genetic and phenotypic variability of yield components in wheat, Triticum aestivum L.

Genetika ◽  
2004 ◽  
Vol 36 (2) ◽  
pp. 151-159
Author(s):  
Veselinka Zecevic ◽  
Desimir Knezevic ◽  
Marija Kraljevic-Balalic ◽  
Danica Micanovic
Keyword(s):  
Yield Components ◽  
Phenotypic Variability ◽  
Block Design ◽  
Triticum Aestivum L ◽  
Spike Length ◽  
Maturity Stage ◽  
Phenotypic Analysis ◽  
Components Of Variance ◽  
Average Value ◽  
Randomized Block Design

The heritability, phenotypic variability and components of variance for spike length and number of spikelets per spike have been studied in 50 cultivars from different selection centers all over the world. The experiment was performed in randomized block design in three replications on the experimental field in two years. A total number of 60 plants have been analyzed in the full maturity stage. Average estimated values of spike length and number of spikelets per spike differed significantly among years and among cultivars. The highest average value of spike length had Mironovskaya 808 cultivar (V =14.5 cm), and the lowest value was found in Etoille de Choisy (J=8.1 cm) and San Pastore cultivar (V =8.2). During investigated periods the highest average value for number of spikelets/spike had Sava cultivar (V=28.2), and the lowest value expressed Frontana cultivar (V =19.2). The average variation coefficient for spike length was 8.0%, and for number of spikelets per spike was 7.5%. The lowest variability for spike length was established in Pernel cultivar (V=4.8%) and the highest in Lepenica cultivar (V=12.9%). The coefficient of variation for number of spikelets per spike ranged from 4.7% in Bankut 1205 to 12.4% in Norin 10 cultivar. The obtained heritability values in broad sense were fairly high for spike length (96.4%) and number of spikelets per spike (79.1%). Phenotypic analysis of variance indicated that genetic variance took a larger portion of the total phenotypic variability for spike length (81.82%) and for number of spikelets per spike (57.36%) than influence of environmental factors on expressing of analyzed yield components.

scholarly journals Phenotypic variability and heritability of plant height in wheat, Triticum aestivum L.

Genetika ◽  
2004 ◽  
Vol 36 (2) ◽  
pp. 143-150
Author(s):  
Veselinka Zecevic ◽  
Desimir Knezevic ◽  
Danica Micanovic
Keyword(s):  
Plant Height ◽  
Phenotypic Variability ◽  
Block Design ◽  
Triticum Aestivum L ◽  
Maturity Stage ◽  
Phenotypic Analysis ◽  
Components Of Variance ◽  
Average Value ◽  
Randomized Block Design ◽  
Very High

Variability, heritability and components of variance have been studied in 50 cultivars from different selection centers all over the world. The experiment was performed in randomized block design in three replications on the experimental field during two seasons. A total number of 60 plants have been analyzed in the full maturity stage. The analyzed cultivars displayed very significant differences in the average value of plant height. The average variability of plant height was V=7.4%. The lowest variability of plant height was found in the Fundulea cultivar (V=5.2%), and the highest in Norin 10 (V=9.8%) cultivar. The obtained heritability value in broad sense was very high for plant height (h2=95.9%). Phenotypic analysis of variance indicated that there was a larger influence of genetic factors for plant height (84.32%) than influence of environmental factors on expressing of analyzed yield components.

scholarly journals Stability of yield components in wheat (Triticum aestivum L.)

Genetika ◽  
2011 ◽  
Vol 43 (1) ◽  
pp. 29-39
Author(s):  
Miodrag Dimitrijevic ◽  
Desimir Knezevic ◽  
Sofija Petrovic ◽  
Veselinka Zecevic ◽  
Jelena Boskovic ◽  
...  
Keyword(s):  
Environmental Conditions ◽  
Yield Components ◽  
Phenotypic Variability ◽  
Block Design ◽  
Triticum Aestivum L ◽  
Wheat Breeding ◽  
Yield Component ◽  
Maturity Stage ◽  
Breeding Programs ◽  
Randomized Block Design

Variability and stability of yield components for the large number of divergent common wheat genotypes originated in different world breeding institutions were studied. Interaction genotype x environment has been evaluated, in different environmental conditions. The experiment was performed using randomized block design in three replications on the experimental field in different environmental conditions. A total number of 60 plants have been analyzed in the full maturity stage. The analyzed cultivars showed very significant differences in the average values of analyzed traits. The significant influence of cultivars, year and their interaction on expression of traits was found. The effects of each of analyzed traits on phenotypic variability were different. The most stable genotypes have been determined for analyzed yield component. On the base of stability and phenotypic variability the genotypes can be used as parents in wheat breeding programs.

scholarly journals Some Quantitative Properties оf Winter Wheat (Triticum aestivum L.)Grown in Meliorated Deposol

2015 ◽  
Vol 15 (3) ◽  
pp. 255
Author(s):  
Nenad Malić ◽  
Dragan Mandić
Keyword(s):  
Winter Wheat ◽  
Plant Height ◽  
Seed Yield ◽  
Block Design ◽  
Agricultural Practices ◽  
Triticum Aestivum L ◽  
Average Height ◽  
Mean Values ◽  
Average Value ◽  
Randomized Block Design

This paperwork presents the three-year research results on impacts of different agricultural practices on the growth and development of winter wheat(Triticumaestivum L.), on meliorated deposol in the process of reclamationin Stanari mine. The aim of the research is to determine the impacts of different doses of fertilizers and varieties to yieldand quality of wheat.Fieldthree-factor experiment was set up according to the randomized block design with four replications. The first factor (A) is year. The second factor(M) is variety. The third factor (K) representsagromeliorative measu­res fertilizations. Measurement and statistically analysis of plant height, seed yield and 1000 grain weight has been performed. The maximum measured height of wheat plants was 82 cm and average height was 66,2 cm. Maximum seed yield was 6,28 t/ha, with the average 2,66 t/ha. The average value of 1000 grain is 35 g and the maximum value of 44 g. The highest meanvaluesof plant height and seed yield weremeasured at doses of fertilizers N60+40P60K60. The highest mean values of mass of 1000 grain were measured at doses of fertilizers N60+90P60K60. Achieved results show that the winter wheat can be grown on meliorated deposol of Stanari mine overburden disposal.

Combining ability and heterosis studies across environments in linseed (Linum usitatissimum L.)

2011 ◽  
Vol 59 (1) ◽  
pp. 87-102 ◽  
Author(s):  
S. Sood ◽  
N. Kalia ◽  
S. Bhateria
Keyword(s):  
Seed Yield ◽  
Linum Usitatissimum ◽  
Combining Ability ◽  
Yield Components ◽  
Block Design ◽  
Linum Usitatissimum L ◽  
Randomized Block Design ◽  
Component Traits ◽  
Parental Lines ◽  
Fibre Yield

Combining ability and heterosis were calculated for fourteen lines of linseed in a line × tester mating design using twelve lines and two diverse testers in two different environments. The hybrids and parental lines were raised in a completely randomized block design with three replications to investigate seed and fibre yield and their component traits. Genetic variation was significant for most of the traits over environments. Combining ability studies revealed that the lines KL-221 and LCK-9826 were good general combiners for seed yield and most of its components, whereas LMH-62 and LC-2323 were good general combiners for yield components only. Moreover, KL-221 was also a good general combiner for fibre yield. Similarly, B-509 and Ariane were good general combiners for fibre yield and most of its components. Among the specific cross combinations, B-509 × Flak-1 was outstanding for seed yield per plant and B-509 × KL-187 and LC-2323 × LCK-9826 for fibre yield per plant, with high SCA effects. In general, the hybrids excelled their respective parents and the standard checks for most of the characters studied. Based on the comparison of mean performance, SCA effects and the extent of heterosis, the hybrids LC-2323 × LCK-9826 and B-509 × KL-221 appeared to be the most promising for both seed and fibre yield. Other promising combinations were LC-2323 × KL-210 and B-509 × Ariane for seed and fibre yield, respectively. The superiority of LC-2323, LCK-9826, KL-221, B-509 and Ariane as good general combiners was further confirmed by the involvement of these parents in the desirable cross combinations.

Effectiveness of nitrogen and bio-fertilizer choice for improving growth and yield of hybrid rice (Oryza sativa L.) during dry season

2020 ◽  
Vol 57 (4) ◽  
pp. 302-309
Author(s):  
Sukanta Pal ◽  
Megha Sana ◽  
Hirak Banerjee ◽  
Lhingneikim Lhungdim
Keyword(s):  
Yield Components ◽  
Hybrid Rice ◽  
Growth Parameters ◽  
Oryza Sativa L ◽  
Block Design ◽  
Growth And Yield ◽  
Combined Application ◽  
Randomized Block Design ◽  
N Dose ◽  
Dry Seasons

Effect of nitrogen and bio-fertilizer on growth and productivity of hybrid rice (cv. PHB 71) was assessed during dry seasons of 2017 and 2018 at Research Farm of BCKV under new alluvial zone of West Bengal. The experiment was laid out in factorial randomized block design with 12 treatment combinations having 4 levels of N and 3 types of bio-fertilizer replicated thrice. Application at 180 kg N/ha produced tallest plants at 90 DAT with maximum LAI (60 DAT), DMA (90 DAT), tillers/hill (90 DAT) and CGR (30-60 & 60-90 DAT). The same N rate resulted in highest panicles/m2, panicle length, panicle weight, filled grains/panicle and 1000-grain weight. A decrease in N dose from 180 to 150 kg/ha caused reduction in all those yield components; however, the variation was non-significant except for number of panicles/m2. Maximum grain yield, straw yield and harvest index was also achieved with 180 kg N/ha accounting 120.1, 34.9 and 32.8% more than the values obtained with zero-N; however, it was statistically at par with the yields and HI obtained with 150 kg N/ha. The Azospirillum application increased all the growth parameters, yield components and yield of hybrid rice over other tested bio-fertilizers (Azospirillum > PSB > K mobilizer), accounting 5.9 and 8.8% more than the yields obtained with PSB and K mobilizer. The interaction of N and bio-fertilizer exerted significant effect on growth attributes but failed to record any significant variations in yield components and yield of hybrid rice. The maximum economic benefit was achieved with combined application of 180 kg N/ha and Azospirillum.

scholarly journals Nitrogen topdressing and application ways of fluazifop-p-butyl + fomesafen in weed control and agronomic performance of common bean

2015 ◽  
Vol 87 (4) ◽  
pp. 2301-2307 ◽  
Author(s):  
MATHEUS G. SILVA ◽  
ORIVALDO ARF ◽  
PAULO E. TEODORO
Keyword(s):  
Common Bean ◽  
Weed Control ◽  
Yield Components ◽  
Dry Matter ◽  
Block Design ◽  
Agronomic Performance ◽  
Randomized Block Design ◽  
Bean Yield ◽  
Leaf N Content ◽  
Leaf N

ABSTRACT The objective of this study was to investigate the effect of interaction between nitrogen topdressing and different application ways (active ingredients) a.i. fluazifop-p-butyl + fomesafen in weed control and agronomic performance of common bean. The experiment was conducted during winter 2003 in Selvíria/MS. The experimental design used was a randomized block design with four replications in a factorial scheme 2x7. The first factor was composed by the absence or presence of nitrogen topdressing, while the second factor consisted of different application ways of fluazifop-p-butyl + fomesafen. The following variables were measured: leaf N content, dry matter of plants, yield components (number of pods plant-1, number of grains plant-1, the average number of grains pod-1 and mass of 100 grains), grain yield, phytotoxicity and weed control percentage. The nitrogen topdressing with 75 kg ha-1provided higher dry matter of plants, higher weed control and higher common bean yield of irrigated winter. In the absence of nitrogen topdressing in the application of urea before or together to fluazifop-p-butyl + fomesafen increased their effectiveness in controlling weeds without interference in the agronomic performance of common bean.

scholarly journals Penampilan Varietas Jagung Unggul Baru Bermutu Protein Tinggi di Jawa dan Bali

2017 ◽  
Vol 10 (2) ◽  
pp. 49 ◽  
Author(s):  
Muhammad Azrai
Keyword(s):  
Amino Acids ◽  
Yield Components ◽  
Future Prospect ◽  
Block Design ◽  
Quality Protein Maize ◽  
Row Spacing ◽  
Randomized Block Design ◽  
Puccinia Polysora ◽  
Ear Height ◽  
Biomass Plant

<p><strong>Abstract</strong></p><p>Study on the performance of two quality protein maize (QPM) varieties (Srikandi Putih-1 and Srikandi Kuning-1) plus two Indonesian open pollinated varieties (Bayu and Lamuru) was conducted at seven environments in Java and Bali. The experiments were arranged in a randomized block design with three replications. Each variety was grown in a four-row plot with 5 m length, 75cm apart and 25 cm within row spacing and one plant per hill. Observations were made on yield, biomass, plant height, ear height, flowering dates, yield components, plant and ear aspect, husk cover, diseases incidence of Puccinia polysora and Helminthossporium maydis, protein contains, lysine, and tryptophan-amino acids contains. In general, Srikandi Putih-1 and Srikandi Kuning-1 varieties had a good adaptations under all environments. They contained nearly twice the lysine and tryptophan-amino acids compared to Bayu and Lamuru varieties. Therefore, they have future prospect for the development of protein synthesis in humans and monogastric animals.</p><p><strong>Abstrak</strong></p><p>Penelitian penampilan varietas jagung unggul baru bermutu protein tinggi (Srikandi Putih-1 dan Srikandi Kuning-1) dan dua varietas unggul nasional (Bayu dan Lamuru) telah dilaksanakan pada tujuh lokasi di Jawa dan Bali pada tahun 2003 sampai 2004. Penelitian ditata dalam percobaan acak kelompok dengan tiga ulangan. Setiap varietas ditanam pada petakan empat baris, panjang 5 m, jarak antar baris 75 cm, jarak dalam barisan 25 cm, dan ditumbuhkan satu tanaman per rumpun. Pengamatan dilakukan terhadap hasil biji, biomas segar, tinggi tanaman, panjang tongkol, umur berbunga, komponen hasil, skor penampilan tanaman, penutupan kelobot, penyakit karat dan hawar daun, serta kandungan protein kasar, asam amino lisin, dan triptofan. Secara umum varietas Srikandi Putih-1 dan Srikandi Kuning-1 dapat beradaptasi baik pada semua lingkungan. Selain itu, kedua varietas tersebut mempunyai kandungan lisin dan triptofan hampir dua kali lipat dibandingkan dengan varietas Bayu dan Lamuru. Oleh karena itu, kedua varietas tersebut mempunyai prospek untuk dikembangkan sebagai sintesis protein pada ternak monogastrik dan manusia.</p>

scholarly journals Effect of spatial arrangement on the production components and yield of sunflower

Revista CERES ◽  
2016 ◽  
Vol 63 (2) ◽  
pp. 214-222
Author(s):  
Francisco Thiago Coelho Bezerra ◽  
Alek Sandro Dutra ◽  
João Bosco Pitombeira
Keyword(s):  
Yield Components ◽  
Harvest Index ◽  
Polynomial Regression ◽  
Block Design ◽  
Spatial Arrangement ◽  
Biodiesel Production ◽  
Plant Science ◽  
Oilseed Crop ◽  
Randomized Block Design ◽  
Crop Cycle

ABSTRACT The sunflower plant is an oilseed crop that has aroused a great interest in the Brazilian and international scenery especillay because of the possibility of using its oil for biodiesel production. The objective of this study was to evaluate productivity and yield components of Embrapa 122 sunflower according to the spatial arrangement. Treatments were arranged in 4 x 4 factorial arrangement, which are the four spacings between rows (0.30; 0.50; 0.70 and 0.90 m) and four sowing densities (30,000; 45,000; 60,000 and 75,000 plants ha-1). The experiment was carried out in a complete randomized block design with four replications. The experiments were conducted in the experimental area of the Plant Science Department in Fortaleza, State of Ceará-Brazil and on the Curu Vale Experimental Farm in Pentecoste, State of Ceará-Brazil. Productivity and the following production components were analyzed in the end of the crop cycle: harvested capitula, capitulum diameter, capitulum mass, achene mass per capitulum, mass of 100 achenes, achenes per capitulum, harvest index and oil content in the achenes. The experiments were analyzed jointly in relation to the cropping area and the data submitted to analysis of variance and quantitative factors tested by polynomial regression. The variables, spacing, density and cropping area did not interact with these variables and the spatial arrangement of the plants affected only the components. The cropping area influences the productive behavior of sunflower Embrapa 122. The spatial arrangement of the plants of sunflower of variety Embrapa 122 influences yield components but does not affect productivity.

scholarly journals Variabilitas Genotipe-Genotipe Mutan Krisan (Dendranthema grandiflora Tzvelv.) Generasi MV5 Hasil Irradiasi Sinar Gamma

Agrikultura ◽  
2016 ◽  
Vol 27 (3) ◽  
Author(s):  
Dedeh Kurniasih ◽  
Dedi Ruswandi ◽  
Murdaningsih Haeruman Karmana ◽  
Warid Ali Qosim
Keyword(s):  
Experimental Method ◽  
Plant Height ◽  
Gamma Ray ◽  
Phenotypic Variability ◽  
Block Design ◽  
Mutation Breeding ◽  
Dendranthema Grandiflora ◽  
Randomized Block Design ◽  
Flower Diameter ◽  
Flower Type

ABSTRACTVariability of mutant genotypes chrysanthemum (Dendranthema grandiflora Tzvelv.) fifth generationsthrough gamma iIrradiationDendranthema grandiflorum Tzvelv. is a major floriculture in Indonesia, and it is one of the five most popular flowers in Indonesia. Chrysanthemum varieties in Indonesia is largely the introduced varieties. Chrysanthemum hybridization especially for decorative flower type in order to obtain superior varieties is relatively difficult, so the mutation breeding is one approach that can be taken to get the chrysanthemum varieties with different phenotypic performances with the that parent.The purpose of this study was to obtain information genetic and phenotypic variability characters observed on chrysanthemum irradiated with gamma ray. The experiment was conducted by an experimental method using a randomized block design (RBD). The treatments consisted of 37 mutants genotypes and 11 genotypes chrysanthemums parent as controls with two replications. The results of this study indicated that the genotypes tested had broad genetic and phenotipic variation for the plant height, flower diameter, number of flower and neck lengths.Key words: Chrysanthemum mutants, Variability, Gamma ray irradiation.ABSTRAKKrisan merupakan komoditas tanaman hias utama di Indonesia dan paling banyak diminati masyarakat. Varietas-varietas krisan yang beredar di Indonesia sebagian besar merupakan varietas introduksi. Persilangan krisan khususnya untuk tipe bunga dekoratif dalam rangka memperoleh varietas unggul relatif sulit dilakukan, sehingga pemuliaan mutasi merupakan salah satu pendekatan yang dapat ditempuh untuk mendapatkan varietas krisan dengan penampilan fenotipik yang berbeda dengan induknya. Tujuan penelitian ini adalah untuk mendapatkan informasi variabilitas genetik dan fenotipik karakter-karakter yang diamati pada tanaman krisan yangd iradiasi dengan sinar gamma. Percobaan dilakukan dengan metode eksperimen menggunakan Rancangan Acak Kelompok (RAK). Perlakuan terdiri atas 37 genotipe mutan krisan dan 11 genotipe tetua krisan sebagai kontrol dengan dua ulangan. Hasil penelitian menunjukkan bahwa genotipe-genotipe yang diuji memiliki variabilitas yang luas untuk karakter tinggi tanaman, diameter bunga, jumlah kuntum dan panjang tangkai bunga.Kata kunci: Mutan krisan, Variabilitas, Sinar gamma

scholarly journals Planting Density and Soybean (Glycine max L.) Cultivars Effects on Yield Components in the Amazon

2020 ◽  
Vol 8 (3) ◽  
pp. 63
Author(s):  
Priscila Pereira Sacramento ◽  
Letícia Cunha da Hungria ◽  
Jamil Chaar El-Husny ◽  
Luis De Souza Freitas
Keyword(s):  
Grain Yield ◽  
Plant Height ◽  
Yield Components ◽  
Block Design ◽  
Planting Density ◽  
Maximum Height ◽  
Soybean Cultivars ◽  
Linear Behavior ◽  
Randomized Block Design ◽  
Glycine Max L

The aim of this study was to evaluate the influence of planting density and cultivar of soybean on yield components in the southeast Amazon. The experiment was carried out in an Oxisol, with a randomized block design in a 2 x 4 factorial scheme. The treatments were two soybean cultivars (BRS 9090 RR and BRS 8990 RR) and four planting densities (13, 15, 18 and 20 plants m-1), with three replications. First pod insertion height (IFP), plant height (H), number of pods per plant (NPP), grain yield (Y) and weight of 100 grains (W100) were evaluated. The insertion height of the first pod showed a tendency of increase with the increment of plants per linear meter for cultivar BRS 8990 RR, different of the behavior observed for the cultivar BRS 9090 RR, which only showed difference when the density of 300.000 plants ha-1 was tested. For plant height, among soybean cultivars, there was only difference in D400, with BRS 8990 RR showing a maximum height of 83.3 cm, 21% higher than BRS 9090 RR. When evaluated under D350, BRS 8990 RR showed an increase of 13% in the number of pods compared to BRS 9090 RR. Both cultivars showed linear behavior for the grain yield, increasing according the plant population, with the highest grain yield obtained under the density of 400.000 plants ha-1 (4527.3 kg ha-1). The weight of 100 grains was not influenced by any variation factor.

Sign in / Sign up

Export Citation Format

Share Document