scholarly journals Defoliation at different vegetative stages and assessment of morphological and yield components

2016 ◽  
Vol 22 (1) ◽  
Author(s):  
Maicon Nardino ◽  
Velci Queiróz de Souza ◽  
Carlos André Bahry ◽  
Ivan Ricardo Carvalho ◽  
Braulio Otomar Caron ◽  
...  
Keyword(s):  
Experimental Design ◽  
Grain Yield ◽  
Water Availability ◽  
Yield Components ◽  
Block Design ◽  
Morphological Characters ◽  
Main Stem ◽  
Stem Height ◽  
Randomized Block Design ◽  
Pod Number

Objective was to evaluate the influence of defoliation of a soybean cultivar indeterminate growth in different vegetative stages on morphological characters and yield components. The study was conducted in the years 2010/11 and 2011/12. The experimental design was a randomized block design with seven treatments and four replications for each year. The treatments were: T1: No defoliation; T2: Defoliation in V4, T3: Defoliation in V4 and V5, T4: Defoliation in V4, V5 and V6, T5: Defoliation in V4, V5, V6 and V7, T6: Defoliation in V4, V5, V6, V7 and V8 and T7: Defoliation in V4, V5, V6, V7, V8 and V9. The variables analyzed were: main stem height, number and length of branches, first pod, number of pods per node on the main stem, and the branches per plant, number of reproductive nodes on the main stem, the branches, number of us total on the main stem, the branches, distance between us and grain yield. Grazing did not influence most of the morphological characters and increments the number of pods on the stem in years with good water availability and high levels of defoliation, and yield of soybean.

scholarly journals Response of Wheat Plants to Combinations of Herbicides with Insecticides and Fungicides

2019 ◽  
Vol 37 ◽  
Author(s):  
M. VIECELLI ◽  
F.B. PAGNONCELLI JR. ◽  
M.M. TREZZI ◽  
B.M. CAVALHEIRO ◽  
R.C.R. GOBETTI
Keyword(s):  
Experimental Design ◽  
Grain Yield ◽  
Yield Components ◽  
Dry Matter ◽  
Block Design ◽  
Wheat Grains ◽  
Synergistic Interactions ◽  
Randomized Block Design ◽  
Relative Tolerance ◽  
Chemical Groups

ABSTRACT: The combination of herbicides and other pesticides can influence weed and crop management. This study aimed to evaluate the response of the combination of different herbicides with insecticides or fungicides of different chemical groups on the development and yield of wheat grains of the cultivar ORS Vintecinco. The experimental design was a randomized block design with three replications. The experiment consisted of 33 treatments, as follows: control without application and application of the herbicides 2,4-D (1,005 g a.e. ha-1), bentazon (756 g a.i. ha-1), metsulfuron-methyl (3 g a.i. ha-1), and pyroxsulam (16 g a.i. ha-1), isolated or combined with the insecticides chlorfluazuron (15 g a.i. ha-1), chlorpyrifos (720 g a.i. ha-1), deltamethrin (5 g a.i. ha-1), and methomyl (5 g a.i. ha-1) or with the fungicides azoxystrobin (100 g a.i. ha-1), carbendazim (250 g a.i. ha-1), and propiconazole (190 g a.i. ha-1). Relative tolerance (RT), shoot dry matter (SDM), yield components, and grain yield were evaluated. In general, pyroxsulam had the highest number of synergistic interactions with insecticides and fungicides, reducing RT and SDM, especially the combination pyroxsulam + chlorpyrifos due to a lower RT level (45%) and higher SDM reduction (52%). All combinations of herbicides with the insecticide chlorpyrifos and most of the combinations with the fungicide propiconazole led to a reduction of grain yield when compared to their isolated application or to control without application.

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.

scholarly journals Keragaman Karakter Morfologi, Komponen Hasil, dan Hasil Plasma Nutfah Kedelai (Glycine max L.)

Jurnal BIOMA ◽  
2014 ◽  
Vol 10 (2) ◽  
pp. 41 ◽  
Author(s):  
Priskilla Purnaning Putri ◽  
Adisyahputra Adisyahputra ◽  
Asadi Asadi
Keyword(s):  
Glycine Max ◽  
Yield Components ◽  
Block Design ◽  
Morphological Characteristics ◽  
Significant Negative Correlation ◽  
Morphological Characters ◽  
Yield Component ◽  
Randomized Block Design ◽  
Glycine Max L ◽  
Black Seeds

Abstract Soybean (Glycine max L.) is annual crop that have high morphologies and yield components diversity. The research was conducted at the first season of 2011, the objective of the research were to find morphological, yield, and yield component of Soybean germplasm (Glicine max L.). The research was carried out at experimental station BB-BIOGEN Citayam, Depok, and laboratory of Gene Bank BB-BIOGEN. The experiment used randomized block design with 100 different accessions and three replications for each accession. Based on the observation, the morphological characters have many visual forms. They are as follows: growth percentage in which 19.33 – 99%; growth types were determinate and indeterminate, the leave form was triangle to sharp; purple and white flowers; yellow and black seeds color. The range of values for each characteristic component are as follows: plant height 29,23 – 104,25 cm; number of pods per plant was 23,6 – 99,82; flowering time 33 – 47 days after planting; 100 seed weight 5,98 – 20,77 gram; maturing time 75 – 96,67 days after planting; root nodule’s weight 0,004 – 0,109 gram; seed’s weight 3,15 – 11,45 gram/plant. Among the accessions, the highest yield was shown by B 4323 (643,27 gram/3,6 m2). Significant correlation was shown between soybean’s yield components and yield which were plant’s height, growth percentage, numbers of main stem’s node, numbers of pods, seeds weight for each plant and root nodule’s weight. 100 seeds weight showed significant negative correlation with soybean components.   Key words: germplasm, morphological characteristics, soybean, yield components

scholarly journals Performance of different rice hybrids in Krishna western delta

2020 ◽  
Vol 15 (3) ◽  
pp. 249-251
Author(s):  
K. Anny Mrudhula ◽  
B. Krishna Veni
Keyword(s):  
Field Experiment ◽  
Grain Yield ◽  
Plant Height ◽  
Yield Components ◽  
Growth Parameters ◽  
Block Design ◽  
Research Unit ◽  
Panicle Length ◽  
Straw Yield ◽  
Randomized Block Design

A field experiment was conducted at Rice Research Unit, Bapatla during Kharif, 2013 to observe the performance of hybrids under Krishna Western Delta. The experiment was laid out in Randomized Block Design with four replications. The treatments are 5 rice hybrids like DRRH2, DRRH3, KRH2, PA6201 and CRHR32. The results of study revealed that the hybrids exhibited superiority in respect of different growth parameters like plant height, number of tillers per hill, panicle length grain yield and straw yield. Among various tested rice hybrids, maximum grain yield (6408 kg/ha) and straw yield (7178 kg/ha) were recorded in PA6201 which might be due to better growth parameters and yield components of hybrids.

Effect of Bacterial Inoculation and Different Phosphorus Doses on Yield Components and Yield of Chickpea (Cicer arietinum L.)

2019 ◽  
Author(s):  
N Bildirici
Keyword(s):  
Grain Yield ◽  
Cicer Arietinum ◽  
Yield Components ◽  
Block Design ◽  
First Year ◽  
Cicer Arietinum L ◽  
Randomized Block Design ◽  
Affected Plant ◽  
Second Year ◽  
Number Of Branches

This research was carried out in 2014-15 to determine yield and yield components of Azkan chickpea (Cicer arietinum L.) varieties with four different phosphorus doses and rhizobium bacteria in Van-Gevaº ecological conditions. The experiment was established as a randomized block design with three replications. The results of the research indicated that inoculation and phosphorus doses affected plant height, height of first pods, number of branches per plant, number of pods per plant, number of grain per plant and grain yield significantly. Grain yield averages ranged between 1556.10-1682.30 kg ha-1 in the first year and 1628.90-1677.30 kg ha-1 in the second year. When the results of inoculation and phosphorus doses were examined, the highest grain yield in both the years (1894.90-1867.70 kg ha-1, respectively) was obtained with 80 kg ha-1 phosphorus doses applied to inoculated plots. Increases in inoculation and phosphorus doses increased the grain yield.

scholarly journals Path Analysis in Soybean Cultivars Grown under Foliar Spraying and Furrow Inoculation with Azospirillum brasilense

2017 ◽  
Vol 9 (10) ◽  
pp. 137
Author(s):  
Alan Mario Zuffo ◽  
Joacir Mario Zuffo Júnior ◽  
Wéverson Lima Fonseca ◽  
Everton Vinicius Zambiazzi ◽  
Augusto Matias de Oliveira ◽  
...  
Keyword(s):  
Experimental Design ◽  
Grain Yield ◽  
Path Analysis ◽  
Plant Height ◽  
Azospirillum Brasilense ◽  
Block Design ◽  
Soybean Plant ◽  
Randomized Block Design ◽  
Established Plant ◽  
Part Plant

The objective of this study was to evaluate, through path analysis, the influence of agronomic characters as a function of foliar spraying and furrow inoculation by Azospirillum brasilense on soybean yield. Two experiments were conducted in the crop years of 2013/14 and 2014/15, grown in Lavras, Minas Gerais. In the first experiment, the experimental design was a randomized block in a factorial 4 × 6, four cultivars (Anta 82 RR®, BRS Favorita RR®, BRS 780 RR®, BRS 820 RR®) and six doses of A. brasilense (0, 300, 400, 500, 600, 700 mL ha-1), with three replications. In the second experiment, the experimental design was a randomized block design, arranged in a 4 × 2 factorial scheme, four cultivars (Anta 82 RR®, BRS Favorita RR®, BRS 780 RR®, BRS 820 RR®) and two treatments with A. brasilense (inoculated and non-inoculated) with three replications. For both experiments, it was established plant height, phytomass of the aerial part, plant height at harvest, first legume insertion, number of legumes, number of grains per legume, mass of one thousand grains and grain yield. In the study with foliar spraying of soybean with A. brasilense, plant height at harvest was the only variable that had a direct effect on soybean grain yield. As such, in the study with furrow inoculation of A. brasilense in soybean, plant height at harvest and number of vegetables were the variables with the greatest direct effects on soybean grain yield.

scholarly journals Manganese and zinc leaf application on common bean grown on a "Cerrado" soil

2004 ◽  
Vol 61 (1) ◽  
pp. 77-81 ◽  
Author(s):  
Itamar Rosa Teixeira ◽  
Aluízio Borém ◽  
Geraldo Antônio de Andrade Araújo ◽  
Renildes Lúcio Ferreira Fontes
Keyword(s):  
Yield Components ◽  
Block Design ◽  
Soil Surface ◽  
Micronutrient Deficiencies ◽  
Combined Application ◽  
Randomized Block Design ◽  
Liming Material ◽  
Primary Yield ◽  
Set Up ◽  
Pod Number

The occurrence of micronutrient deficiencies, mainly of manganese (Mn) and zinc (Zn) in "cerrado" soils, has been increasing in several crops, including bean. Such a problem is caused by high rates of liming material applied entirely on the soil surface. In this study, the effects of the leaf application of Mn and Zn rates were evaluated. Three experiments were carried out: two in greenhouse and one under field conditions. The greenhouse experiments were set up using a randomized block design and a 5 x 5 factorial, with three replicates, consisting of five rates of Mn (0, 75, 150, 300, and 600 g ha-1) and five rates of Zn (0, 50, 100, 200, and 400 g ha-1) applied via leaves at the 25th day, or both alternatively parceled at 25 and 35 days after emergency (DAE), respectively, for the first and second experiments. In the field experiment, a randomized block design was used with four replicates, and the same treatments as those used in the greenhouse. Leaf applications performed at 25 and 35 DAE were efficient in correcting the symptoms of the Mn and Zn deficiencies. The combined application of Mn and Zn caused an increase in plant height, primary yield components as number of grains per pod, number of pods per plant, and productivity itself. The maximum technical efficiency was obtained with 315 g ha-1 Mn and 280 g ha-1 Zn for a bean productivity of 2.275 kg ha-1, corresponding to 60% above control.

scholarly journals Effect of nitroxin and humic acid on yield and yield components of faba bean

2015 ◽  
Vol 60 (3) ◽  
pp. 361-367
Author(s):  
Abolfazl Kholdi ◽  
Shahram Sedaghathoor ◽  
Eshagh Poursafarali
Keyword(s):  
Humic Acid ◽  
Faba Bean ◽  
Yield Components ◽  
Low Cost ◽  
Block Design ◽  
Shoot Biomass ◽  
Stem Height ◽  
Randomized Block Design ◽  
Vicia Faba L ◽  
Root And Shoot Biomass

Quality and quantity improvement of crops using organic matter and low-cost method in the field is very important. Bio-fertilizer nitroxin and humic acid can increase root and shoot biomass through improved intake of nutrition and they can lead to quality and quantity improvement of product. An experiment was carried out as a completely randomized block design with 4 treatments to study the effect of nitroxin and humic acid on faba bean (Vicia faba L.) traits. Trial treatments included control, nitroxin, humic acid and nitroxin + humic acid. Analysis of variance showed that the effect of combination of nitroxin + humic acid was significant (p< 1%) on some traits such as stem height and yield of faba bean. The highest yield (2,315 kg ha-1) was obtained under nitroxin + humic acid treatment.

scholarly journals BIOMASS YIELD FOR SILAGE AND GRAIN YIELD OF MAIZE INTERCROPPED WITH SOYBEAN

2020 ◽  
Vol 19 ◽  
pp. 14
Author(s):  
VANDERSON VIEIRA BATISTA ◽  
PAULO FERNANDO ADAMI ◽  
KARINE FUSCHTER OLIGINI ◽  
LUCAS LINK ◽  
MICHAEL LUIZ FERREIRA ◽  
...  
Keyword(s):  
Grain Yield ◽  
Yield Components ◽  
Crude Protein ◽  
Biomass Yield ◽  
Block Design ◽  
Crude Protein Content ◽  
Thousand Grain Weight ◽  
Maize Crop ◽  
Maize Hybrids ◽  
Randomized Block Design

Maize is one of the main cereals produced worldwide and, in association withsoybean crop, can result in benefits to the production system. The objective of this study was to evaluate the biomass yield for silage and grain yield in maize crop, in the maizesoybean intercropping system. The study was conducted in the municipality of Dois Vizinhos - PR, Brazil, using a randomized block design, with nine treatments and four replicates. The treatments were composed of three maize hybrids grown in monoculture and in intercropping with two soybean cultivars (P1630+TMG7062, P1630+P95R51, P1630, LG6030+TMG7062, LG6030+P95R51, LG6030, P30F53+TMG7062, P30F53+P95R51 and P30F53). The data were subjected to analysis of variance and, when there was significance, Scott-Knott test was applied. Maize biomass yield for silage was approximately 4,000 kg ha-1 higher when the hybrids LG6030 and/or P30F53 were used. The cultivar TMG7062 stands out from P95R51 in terms of dry biomass yield for silage. The higher the percentage of soybean biomass added to the silage, the higher its crude protein content. However, crude protein yield per area was similar for the evaluated treatments. Some yield components (number of grains per row and thousand-grain weight) and grain yield of maize differ according to the hybrid used, but similarity is observed between intercropping and monoculture. There is evidence that the soybean cultivar TMG7062, intercropped with P1630, has the potential to reduce the grain yield of the cereal.

scholarly journals Cowpea subjected to organic fertilization and management of the natural vegetation of the savannah of Roraima

2021 ◽  
Vol 15 ◽  
Author(s):  
Djair Alves De Melo ◽  
Tocio Sediyama ◽  
Antonio Alberto Da Silva ◽  
José Maria Arcanjo Alves ◽  
José De Anchieta Alves de Albuquerque ◽  
...  
Keyword(s):  
Experimental Design ◽  
Plant Height ◽  
Vigna Unguiculata ◽  
Yield Components ◽  
Block Design ◽  
Natural Vegetation ◽  
Organic Fertilization ◽  
Randomized Block Design ◽  
Set Up ◽  
Pod Length

Cowpea (Vigna unguiculata (L.) Walp.) is one of the main sources of nutrients for a large part of the population. To increase your income, there is a need for proper management. This study aimed to evaluate yield components of the cowpea cultivar Aracê subjected to two levels of organic fertilization and three management of the natural vegetation of the savannah of Roraima. The experiment was set up in the experimental area of CCA/UFRR, in Boa Vista, Roraima. The experimental design was a randomized block design in a 3×2 factorial scheme, with four replications. The first factor consisted of the management of the natural vegetation: glyphosate application and cutting or not of the natural vegetation. The second factor consisted of the application or not of cattle manure. Yield components were plant height, number of trifoliate leaves, percentage of normal pods, pod length, number of grains per pod, 100-grain weight, sample grain index, total grain index, and final stand. Organic fertilization with 2 L m-2 of manure increased cowpea production. The management with vegetation cutting in areas with organic fertilization increased the final stand of cowpea plants. The desiccation of natural vegetation with glyphosate was the management that had the highest cowpea production.

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