scholarly journals "Selection of several genotype of genetically modified rice (Oryza sativa L.) under the conditions of AlNajaf Governorate in terms of vegetative growth, yield and its components. "

2021 ◽  
Vol 8 (2) ◽  
Author(s):  
Mohammed H. N. AL-Jana ◽  
Faisal M. M. AL-Taher ◽  
Fuad R. Abdel Hussain
Keyword(s):  
Oryza Sativa L ◽  
Flag Leaf ◽  
Block Design ◽  
Growth Yield ◽  
Field Performance ◽  
Research Station ◽  
Randomized Complete Block Design ◽  
Biological Yield ◽  
Selection For ◽  
Selection Of

"The experiment was carried out during growing season (2018-2019) at the Rice Research Station in Mishkhab / AL-Najaf-Iraq, The seeds of 27 genotypes were sowing with the aim of selecting the best economically yielding genotypes for cultivation under the conditions of ALNajaf. The experiment was arranged with a randomized complete block design with four replication. The results showed significant differences between the genotypes for all the traits under study. The G27 genotype showed superiority for traits exceeded, number of grains per panicle, grain yield ton. ha-1 , the biological yield ton. ha-1 and the sterility percentage (%), with averages were 220.17, 13.34, 27.95, and 4.48, respectively. Whereas, the genotype G14 was superior with the characteristics of the number of fertile panicles and the duration of fullness the grain, which averaged 37.00 and 82.25 respectively, while the genotype G13 was significant for weight of 1000 grains (g), and the genotype G21 was superior with the flag leaf area which gave an average 32.45 cm2 . Through this study, genotypes (G1, G2, G12, G15, G16, G17, G18, G21, G25 and G27) showed the best field performance in terms of growth characteristics and the outcome of their selection for the second agricultural season."

scholarly journals Effect of Different Levels of Fertilizers on Productivity and Nutrient Dynamics of Browntop Millet

2020 ◽  
pp. 308-320
Author(s):  
K. V. Anitha ◽  
T. Chikkaramappa ◽  
P. K. Basavaraja ◽  
N. B. Prakash ◽  
K. Murali ◽  
...  
Keyword(s):  
Nutrient Dynamics ◽  
Agricultural Research ◽  
Block Design ◽  
Farmyard Manure ◽  
Growth Yield ◽  
Research Station ◽  
Randomized Complete Block Design ◽  
Dry Zone ◽  
Absolute Control ◽  
Micronutrient Availability

A field experiment was conducted at Agricultural Research Station, Baljigapade, Chikkaballapur taluk and district, which comes under the Eastern Dry Zone of Karnataka during Kharif season 2018. The experimental plot in the field was laid out following a randomized complete block design (RCBD) with fourteen treatments and three replications. The treatments included two levels of N and P2O5 (20 and 30 kg ha-1) and three levels of K2O (10,20 and 30 kg ha-1). Farmyard manure was applied at the rate of 6.25 t ha-1 to all the treatments except absolute control. Results indicated that application of 30 kg N+30 kg P2O5+30 kg K2O ha-1 with Farm Yard Manure (FYM) increased the micronutrient availability in soil N (150.29 kg ha-1), P2O5 (17.60 kg ha-1), K2O (160.84 kg ha-1). Application of FYM @ 6.25 t ha-1+30 kg N+20 kg P2O5 +20 kg K2O ha-1 significantly increased growth, yield, macronutrient content and uptake by brown top millet grain and straw against absolute control. The grain yield of browntop millet was increased by 61.46 percent in T10 and 59.07 percent in T9 as compared to the absolute control.

scholarly journals Varietal Evaluation and Clustering of Early Maize Genotypes in Mid-Western Hilly Region of Nepal

2020 ◽  
Vol 77 (2) ◽  
pp. 24
Author(s):  
Bishnu Prasad KANDEL
Keyword(s):  
Genetic Diversity ◽  
Block Design ◽  
Yield Component ◽  
Research Station ◽  
Maize Genotypes ◽  
Hilly Region ◽  
Randomized Complete Block Design ◽  
Component Traits ◽  
Yield Component Traits ◽  
Selection Of

Eleven early maize (Zea mays) genotypes were evaluated for their yield and yield component traits at the research block of Regional Agriculture Research Station (RARS) Lumle, Kaski, Nepal during Kharif season of 2016. The experiment was laid out in randomized complete block design (RCBD) with three replications. Results showed that all the studied genotypes differed significantly for grain yield as well as other yield component traits except number of kernel per row. Out of tested genotypes COMPOZ-NIPB, EEYC1, POP-445/POP-446 were three top performer genotypes yielding 6.89, 5.38 and 5.19 t ha-1. Early mid Katamari, Rajahar local, Manakamana-5, EEYC1 were statistically at par with Arun-4(standard check) and will be needed further evaluation and improvement by a selection of desirable traits. Eleven genotypes occupied three different clusters and showed that early maize genotypes suggest considerable genetic diversity among themselves. Genotypes belong to cluster one having the highest yield potentials so need to be further evaluation in different location of mid hill and recommended best variety for that domain.

scholarly journals Selection of corn cultivars for yield, stability, and adaptability in the state of Amazonas, Brazil

2017 ◽  
Vol 52 (6) ◽  
pp. 455-463 ◽  
Author(s):  
Inocencio Junior de Oliveira ◽  
André Luiz Atroch ◽  
Miguel Costa Dias ◽  
Lauro José Guimarães ◽  
Paulo Evaristo de Oliveira Guimarães
Keyword(s):  
Grain Yield ◽  
Genetic Parameters ◽  
Block Design ◽  
The State ◽  
Environment Interaction ◽  
Growing Seasons ◽  
Randomized Complete Block Design ◽  
Selection For ◽  
Genetic Value ◽  
Selection Of

Abstract: The objective of this work was to evaluate corn cultivars grown in the state of Amazonas, Brazil, which simultaneously show high grain yield, adaptability, and stability. The trials were carried out in seven environments in the state of Amazonas, in a randomized complete block design, with two replicates. The grain yield of 30 corn cultivars was evaluated in four growing seasons, from 2011/2012 to 2014/2015. The genetic parameters were estimated by the REML/Blup methodology. The selection for adaptability and stability was based on the predicted genetic value and on the harmonic mean of the relative performance of the genetic values. Despite the existence of genotype x environment interaction, cultivars with high adaptability and stability were identified. Iranduba - lowland, in 2011/2012 and 2014/2015 - and Rio Preto da Eva - upland, in 2012/2013 - stood out as favorable environments, while Iranduba - upland, in 2011/2012 and 2012/2013 - and Manaus - upland, in 2012/2013 and 2013/2014 - were classified as unfavorable environments. The single-cross hybrid BRS 1055 showed productive superiority and high stability in this region. The Sint 10771, Sint 10781, and Sint 10699 synthetic varieties showed high adaptability. BRS Caimbé shows specific adaptability to cropping in upland environments of the state of Amazonas, Brazil.

Growth, productivity and nutrient uptake of aerobic rice (Oryza sativa L.) as influenced by different nutrient management practices

2020 ◽  
Vol 57 (1) ◽  
pp. 49-56
Author(s):  
Kalyan Jana ◽  
Ramyajit Mondal ◽  
GK Mallick
Keyword(s):  
Nutrient Uptake ◽  
Management Practices ◽  
Nutrient Management ◽  
Oryza Sativa L ◽  
Block Design ◽  
Growth Yield ◽  
Nutrient Status ◽  
Research Station ◽  
Randomized Block Design ◽  
Treated Plot

A field experiment was undertaken to study the effect of nutrient management on rice cv. Puspa (IET-17509) during pre-kharif season of 2013 and 2014. The experiment was conducted at Rice Research Station, Bankura with eleven different nutrient management practices i.e., N1 = N, P2O5, K2O @ 60, 30, 30 kg ha-1 (RDF);N2 = RDF + Vermicompost @ 2.5 t ha-1; N3 = RDF + FYM @ 5 t ha-1 ; N4 = FYM @ 5 t ha-1, N5 = Vermicompost @ 2.5 t ha-1 ; N6 = RDF + glyricidia (well decomposed) as green manure @ 3 t ha-1; N7 = RDF + ZnSO4 @ 20 kg ha-1 N8 = RDF + borax @ 2 kg ha-1 ; N9 = RDF + Vermicompost @ 2.5 t ha-1 + ZnSO4 @ 20 kg ha-1 ; N10 = RDF +Vermicompost @ 2.5 t ha-1 + borax @ 2 kg ha-1 ; N11 = RDF + Vermicompost @ 2.5 t ha-1 + ZnSO4 @ 20 kg ha-1 + borax @ 2 kg ha-1 respectively in randomized block design comprising of three replications. The result of experiment revealed that rice plot fertilized with the combination of NPK @ 60:30:30 + VC + ZnSO4@ 20 kg ha-1 + borax @ 2 kg ha-1 recorded the highest grain yield of 4.45 t ha-1 which was 56.69 % higher (2.84 t ha-1) than the FYM treated plot. Organic substitution by FYM and vermicompost (VC) had failed to register the significant impact on growth, yield and nutrient uptake. Nutrient uptake and residual nutrient status was also highest in NPK @ 60:30:30 kg ha-1 + VC @ 2.5 t ha-1 + ZnSO4 @ 20 kg ha-1+ borax @ 2 kg ha-1 fertilized plot.

scholarly journals Effect of Miyodo on Growth, Yield Attributes and Yield in T. Aman Rice cv. BR-11

2013 ◽  
Vol 19 (1) ◽  
pp. 45-49
Author(s):  
AKMG Sarwar ◽  
J Sultana ◽  
MO Islam ◽  
AKMA Prodhan
Keyword(s):  
Grain Yield ◽  
Foliar Application ◽  
Flag Leaf ◽  
Block Design ◽  
Growth Yield ◽  
Growth And Yield ◽  
Concentration Limit ◽  
Yield Attributes ◽  
Randomized Complete Block Design ◽  
Number Of Leaves

An experiment was conducted in the field laboratory of the Department of Crop Botany, Bangladesh Agricultural University, Mymensingh, to investigate the effect of foliar application of Miyodo on morphology, yield contributing characters and yield of T. aman rice cv. BR-11. The concentrations of Miyodo used were 2 mgL-1, 3 mgL-1, 4 mgL-1 and 5mgL-1 with a control. The experiment was laid out in a randomized complete block design with three replications. Application of Miyodo by spraying at 45 days after transplanting significantly enhanced plant height, number of tillers and effective tillers, number of leaves and leaf area, size of flag leaf, total dry matter, panicle length, number of total grains and filled grains, 1000-grain weight, grain yield, straw yield, and harvest index. The result showed that the application of 5 mgL-1 Miyodo produced the highest grain yield of BR-11 compared to other concentrations as well as control. However, further study is needed to determine the higher concentration limit of Miyodo in maximizing the growth and yield of T. aman rice cv. BR-11.DOI: http://dx.doi.org/10.3329/pa.v19i1.17106 Progress. Agric. 19(1): 45 - 49, 2008 

scholarly journals Effects of Density and Relative Time of Pigweed (Amaranthus retroflexus) Emergence on Yield of Potato (Solanum tuberosum)

2016 ◽  
Vol 49 (2) ◽  
pp. 115-122
Author(s):  
A. Yadavi ◽  
M. Asadi ◽  
E. Maghsoudi
Keyword(s):  
Plant Height ◽  
Tuber Yield ◽  
Block Design ◽  
Amaranthus Retroflexus ◽  
Research Station ◽  
Relative Time ◽  
Randomized Complete Block Design ◽  
Biological Yield ◽  
Number Of Branches ◽  
Effects Of Density

AbstractFor create of food security is essential increasing of efficiency and more productivity strategic products such as potato. In order to investigate the effects of density and relative time of pigweed emergence on potato, a factorial field experiment was conducted during 2014 based on randomized complete block design with three replications at the Research Station of Borojen, Chaharmahal and Bakhtiari, Iran. Treatments were combination of three different pigweed densities (5, 10 and 15 plants/m2) and relative time of pigweed emergence (4 and 8 days before potato, emerged with potato, 4 days after potato emergence). Results indicated that the effects of density and relative time of emergence of pigweed was significant on number of branches per plant, plant height, number of tubers per square meter, biological yield and tuber yield of potato. Also, the interaction of between experimental factors was significant on the biological yield and tuber yield of potato. The earlier emergence and pigweed density led to reduce number of branches per node,biological yield and tuber yield and increase plant height of potato. The presence of weeds caused reduce the size and number of potato tubers. Procedure of decreasing biological yield and tuber yield potato was different with density increasing of pigweed in various relative time of emergence treatment. The highest (39.8 t ha-1) and the least (18.4 t ha-1) tuber yield were related to density of five plants/m2and emergence at 4 days after potato and density of 15 plants/m2and emergence at 8 days before potato treatments, respectively.

scholarly journals SELECTION OF COFFEE PROGÊNIES FOR RESISTANCE TO LEAF RUST AND FAVORABLE AGRONOMIC TRAITS

2019 ◽  
Vol 14 (2) ◽  
pp. 173
Author(s):  
Rafael Almeida Dias ◽  
Marcelo Resende Ribeiro ◽  
Alex Mendonça Carvalho ◽  
Cesar Elias Botelho ◽  
Antonio Guimarães Mendes ◽  
...  
Keyword(s):  
Agronomic Traits ◽  
Block Design ◽  
Fruit Production ◽  
Direct Selection ◽  
Coffee Rust ◽  
Selection Gain ◽  
Randomized Complete Block Design ◽  
Selection For ◽  
Productivity Assessment ◽  
Selection Of

The objective of this study was to select coffee progenies with better assessment that can result in coffee rust resistant cultivars and better agronomic characteristics than the traditional ones. The essay was performed at the EPAMIG experimental field in Patrocínio, state of Minas Gerais, Brazil. Twenty-five progenies in the F3 generation were studied.  The experiment was set in a randomized complete block design with three replicates and ten plants per plot, arranged in rows at 3.5x0.7m. Productivity assessment, fruit production, in liters of “farm coffee” per plot, bean rating in a sieve (16 or above), and plant vigor were accessed in three different harvest seasons (2011/2012 harvest to 2014/2015 harvest), and coffee rust incidence and severity were then evaluated for 2016. The production profit estimation through the selection was also assessed, by the gain of direct selection for each characteristic, when compared to the rank addition. Progenies 13 (Icatu V. IAC 4040 x IAC 5002) and 3 (Icatu A. IAC 2944 x IAC 5002) were promising in generation advance, for being among the five most productive progenies. The selection gain reached by direct selection was superior than the gain of the total rank additions.

scholarly journals Assessment of Morphological, Genetical and Diversity Studies in Landraces of Rice (Oryza sativa L.)

2021 ◽  
Author(s):  
Sujata . ◽  
Shridevi A. Jekkaral ◽  
B.M. Dushyantha Kumar ◽  
S. Gangaprasad ◽  
Basavaraj I. Halingali
Keyword(s):  
Oryza Sativa L ◽  
Block Design ◽  
Farming System ◽  
Research Station ◽  
College Of Agriculture ◽  
Wide Range ◽  
Randomized Complete Block Design ◽  
Rice Landrace ◽  
Diversity Studies ◽  
Horticultural Research

Background: Landraces displayed a wide range of genetic diversity in rice farming system. Landraces or local types have been used as the sources for the characters such as resistance to pest, disease, abiotic stresses and genetic sources for some physicochemical characters. Various types of landraces of rice are available in the major rice growing regions of Karnataka and hence, their characterization and establishment in uniformity is essential, to consider them as variety and can be protected under PPV and FR act. Investigation was undertaken to assess genetic variability and diversity in fifty one landraces of rice. Methods: The materials comprised of fifty one landraces of rice collected from Zonal Agricultural and Horticultural Research Station, Brahmavar and the experiment was conducted in randomized complete block design with two replications, following spacing of 20 cm between rows and 15 cm between plants at College of Agriculture, Shivamogga, during the Kharif 2018. Result: The present experiment will be useful for the farmers and researchers to identify the valuable germplasm for utilization in rice yield improvement and seek protection under Protection of Plant Varieties and Farmers’ Rights Act and also for protection of rice landrace like Gulvadisanna and Kayame registration made under PPV and FRA.

scholarly journals The effects of pigweed redroot (Amaranthus retoflexus) weed competition and its economic thresholds in corn (Zea mays)

2012 ◽  
Vol 30 (3) ◽  
pp. 477-485 ◽  
Author(s):  
F. Vazin
Keyword(s):  
Grain Yield ◽  
Biomass Yield ◽  
Block Design ◽  
Damage Threshold ◽  
Economic Damage ◽  
Research Station ◽  
Grain Number ◽  
Economic Thresholds ◽  
Randomized Complete Block Design ◽  
Biological Yield

The aim of this study was to determine the economic damage threshold of Pigweed redroot for corn regarding its density. An experiment was conducted at the Agriculture Research station of Islamic Azad University branch of Gonabad during 2006. The experiment was carried out as a factorial in a randomized complete block design with three replications. In the experiments, the factors included corn (var. 704) densities of 7.5, 8.5 and 9.5 plants m-2 and pigweed redroot densities of 0, 2, 4, 6 and 8 plants m-2. The increase in Pigweed redroot density, decrease in crop grain and biomass yield components such as ear length, ear diameter, number of grains per row, row number, grain number in ear, grain yield and biological yield of corn, decreased. Also, with an increase in corn density, the number of grain per rows, row number, grain yield and biological yield of corn increased. The economic thresholds density of Pigweed redroot was 0.09 to 0.13 plants m-2 in corn different densities, and increased with corn density increases.

scholarly journals Varietal Evaluation and Genetic Variability in Rice (Oryza sativa L.) Genotypes of the Mid-Hill Region of Nepal

2020 ◽  
Vol 3 (2) ◽  
pp. 580-592
Author(s):  
Laxmi Pd. Joshi ◽  
Subarna Sharma ◽  
Ankur Poudel ◽  
Bishnu Pd. Kandel
Keyword(s):  
Leaf Area ◽  
Coefficient Of Variation ◽  
Environmental Influence ◽  
Oryza Sativa L ◽  
Flag Leaf ◽  
Block Design ◽  
Direct Selection ◽  
Rice Varieties ◽  
Rice Genotypes ◽  
Selection Of

The objectives of this study were to identify promising rice genotypes and evaluate the genetic variance and effectiveness of selection of the rice varieties for several yield attributing traits. A varietal trial of fifteen rice genotypes was laid out in a randomized complete block design (RCBD) with three replications in a farmer’s field in Sundarbazar, Lamjung, Nepal during the rainy season of 2018. Analysis of variance indicated that all the genotypes showed significant variation for all the traits considered. The phenotypic coefficient of variation (PCV) was higher than the genotypic coefficient of variation (GCV) for all the characteristics being studied indicating the presence of environmental influence on the traits. High heritability coupled with high genetic advance as a percent of the mean was found for days to physiological maturity, number of tillers per m2, plant height, leaf area, effective tillers per m2, flag leaf area, test weight, grains per panicle, filled grains per panicle, harvest index, grain yield, and straw yield indicating that additive gene interaction is present in their inheritance. Direct selection can be effective for yield improvement in the populations through selection of these traits. Cluster analysis based on eighteen traits grouped the fifteen rice genotypes into four clusters. Cluster I was the largest and consisted of five genotypes. Radha 11, NR 119, and Sukhadhan-5 were the top performing genotypes having yield potentials of 5.78, 5.49, and 4.89 tons per ha, respectively.

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