(Z)-3-Hexenyl Butyrate Induces Stomata Closure and Ripening in Vitis vinifera

Agronomy solutions for modifying pre-harvest grape ripening are needed for a more sustainable viticulture. Field experiments were performed in Vitis vinifera L. vines to study the effect of the previously described stomata-closing compound (Z)-3-hexenyl butyrate (HB). Exogenous treatments at different doses were periodically carried out using a randomized block design. Firstly, we observed that HB was able to induce stomatal closure in grapevine plants. Under field conditions, the application of HB around veraison induced a higher color intensity in berries, and vines treated at higher doses reached this stage earlier than the un-treated controls. There was also a clear increase in both grape anthocyanin concentration and total soluble solids without having a negative impact on total yield. We therefore, confirm the role of HB as a universal natural stomatal closure compound and propose a new use for HB in viticulture as a ripening inducer, by accelerating anthocyanin accumulation.

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SELECTION VIA MIXED MODELS IN SEGREGATING GUAVA FAMILIES BASED ON YIELD AND QUALITY TRAITS

Revista Brasileira de Fruticultura ◽

10.1590/0100-29452017866 ◽

2017 ◽

Vol 39 (2) ◽

Cited By ~ 2

Author(s):

SILVANA SILVA RED QUINTAL ◽

ALEXANDRE PIO VIANA ◽

BIANCA MACHADO CAMPOS ◽

MARCELO VIVAS ◽

ANTONIO TEIXEIRA DO AMARAL JÚNIOR

Keyword(s):

Block Design ◽

Total Yield ◽

Ascorbic Acid Content ◽

Fruit Weight ◽

Soluble Solids ◽

Pulp Yield ◽

Individual Level ◽

Selection Accuracy ◽

Randomized Block Design ◽

Solids Content

ABSTRACT Aiming at the generation of new guava varieties with superior attributes, we conducted this study adopting the REML/BLUP procedure at individual level. Seventeen segregating guava families were evaluated in a randomized-block design with two replicates and 12 plants per plot. Families were obtained after controlled biparental pollination. The studied individuals showed high genotypic variance for fruit weight (FW), total yield (YLD), and ascorbic acid content (AAC). The heritability coefficients of the mean of progenies led to high progeny-selection accuracy for pulp yield (PY), soluble solids content (SSC), in addition to FW, YLD, and AAC; moderate accuracy for fruit acidity (FA) and SSC/FA ratio; and low accuracy for mesocarp thickness (MT) and pH. Selection among families (h2mp) indicated the highest values for FW, PY, YLD, SSC, and AAC, revealing that, for the present study, this practice would be effective, since these traits allowed for the highest selection accuracy values among families. As for the ranking of individuals, families originating from crosses UENF 1835 × UENF 1834, UENF 1831 × UENF 1832, and UENF 1831 × UENF 3739 stood out, occupying the first positions for most traits.

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The role of glyphosate in RR soybean production and seed quality

Planta Daninha ◽

10.1590/s0100-83582014000200018 ◽

2014 ◽

Vol 32 (2) ◽

pp. 401-407 ◽

Cited By ~ 3

Author(s):

L.P. Albrecht ◽

A.J.P. Albrecht ◽

A.L. Braccini ◽

R.S. Oliveira Jr. ◽

L.H.S. Zobiole ◽

...

Keyword(s):

Yield Components ◽

Field Experiments ◽

Seed Quality ◽

Block Design ◽

Soybean Seeds ◽

Roundup Ready ◽

Development Stages ◽

Randomized Block Design

This study aimed to evaluate the production components and quality of RR soybean seeds (Roundup Ready®), after application of increasing rates of gliphosate. Field experiments were conducted in Mandaguari, Paraná, during two seasons. Treatments consisted of five doses of glyphosate. All applications were performed once, between development stages V4 and V5. The experiment was arranged in a completely randomized block design, with four replicates. Data were subjected to analysis of variance, and when significant, t-tests and a regression analysis were applied to verify the behavior of the treatments. The physiological and sanitary quality, yield and mass of one thousand seeds were evaluated. The results indicated that seed quality can be adversely affected by glyphosate, and also showed a probable reduction in yield components with increasing rates of application.

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Effect of phosphorus and sulphur on yield attributes, yield, nodulation and nutrient uptake of green gram [Vigna radiate (L.) wilczek]

Legume Research - An International Journal ◽

10.18805/lr.v0iof.9385 ◽

2016 ◽

Author(s):

S. K. DAS

Keyword(s):

Nutrient Uptake ◽

Seed Yield ◽

Field Experiments ◽

Negative Impact ◽

Block Design ◽

Dry Weight ◽

Green Gram ◽

Yield Attributes ◽

Randomized Block Design ◽

Four Levels

Field experiments were conducted during pre kharif 2010, 2011 and 2012 to study the effects of phosphorus and sulphur on yield parameters, yield, nodulation and nutrient uptake of green gram. The experiment was laid out in a factorial randomized block design with three replications having eight treatment combinations viz. four levels of sulphur (0, 20, 40, and 60 kg ha-1) as factor A and two levels of phosphorous (30 and 60 kg ha-1) as factor B. Experimental results revealed that yield attributing characters and seed yield of green gram were significantly influenced by phosphorus, sulphur and interaction effects of these two factors. Application of higher dose of phosphorus (60 kg ha-1) and increasing levels of sulphur up to 40 kg ha-1proved to be the best in improving the yield attributing characters and seed yield (1.62t ha-1)of green gram. Sulphur applied beyond 40 kg ha-1could not increase the parameters further. Application of sulphur 20 kg ha-1 significantly increased the active nodule no. and nodule dry weight of green gram and there after applied S beyond 20 kg ha-1the mean nodule production reached a more or less plateau pattern and application of lower dose of phosphorus without sulphur drastically reduced the nodule dry weight. Interaction of higher dose of phosphorus and higher dose S found to have a negative impact on yield. Application of varying levels of phosphorus and sulphur significantly improved the nutrient uptake by green gram in a sulphur deficient soil. Sulphur acted synergistically with nitrogen and increased the uptake of other nutrients. Application of 60 kg P205 ha-1 and 40 kg Sha-1 proved to be most economic in green gram with NPV 4.59.

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Production and quality of 'Pérola' pineapple under fertigation

Emirates Journal of Food and Agriculture ◽

10.9755/ejfa.2020.v32.i2.2072 ◽

2020 ◽

pp. 109

Author(s):

Robson Bonomo ◽

Moises Zucoloto ◽

Joabe Martins de Souza ◽

Augusto Moreira de Paula Magalhães ◽

Pedro Henrique De Souza Baldotto ◽

...

Keyword(s):

Linear Growth ◽

Block Design ◽

Total Yield ◽

Fruit Production ◽

Soluble Solids ◽

Pulp Yield ◽

Fruit Pulp ◽

Randomized Block Design ◽

Nitrogen Rates

The aim of this paper is to evaluate the yield and quality of 'Pérola' pineapple under increasing rates of nitrogen and potassium applied through fertigation. The experiment was conducted in a randomized block design, with four replications, in a factorial scheme (4x4), which represents four nitrogen rates (128, 256, 384 and 512 kg ha-1 of N) and four potassium rates (192, 384, 576 and 768 kg ha-1of K2O) via fertigation. The evaluations consisted of physical and chemical fruit characteristics and yield. Increasing nitrogen rates provided linear growth on fruit production features and the rate of 516 kg ha-1 resulted in fruits with the largest diameters. The highest total yield on 'Pérola' pineapple crop was reached on plants under the supply of 498 kg ha-1 of K2O. Rates between 523 and 583 kg ha-1 of K2O, provided the largest fruit matter and the highest fruit pulp yield. The increasing amount of nitrogen applied by fertigation resulted in linear growth on fruit pulp pH, though it did not influence the soluble solids content. The lower acid content and higher SS/acid ratio on fruits were reached with the N rates of 333 and 375 kg ha-1 respectively. The aim of this paper is to evaluate the yield and quality of 'Pérola' pineapple under increasing rates of nitrogen and potassium applied through fertigation. The experiment was conducted in a randomized block design, with four replications, in a factorial scheme (4x4), which represents four nitrogen rates (128, 256, 384 and 512 kg ha-1 of N) and four potassium rates (192, 384, 576 and 768 kg ha-1of K2O) via fertigation. The evaluations consisted of physical and chemical fruit characteristics and yield. Increasing nitrogen rates provided linear growth on fruit production features and the rate of 516 kg ha-1 resulted in fruits with the largest diameters. The highest total yield on 'Pérola' pineapple crop was reached on plants under the supply of 498 kg ha-1 of K2O. Rates between 523 and 583 kg ha-1 of K2O, provided the largest fruit matter and the highest fruit pulp yield. The increasing amount of nitrogen applied by fertigation resulted in linear growth on fruit pulp pH, though it did not influence the soluble solids content. The lower acid content and higher SS/acid ratio on fruits were reached with the N rates of 333 and 375 kg ha-1 respectively.

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Agronomic Aptitude and Quality of Vinifera Grapes in a Non-traditional of Culture Region in the Agreste of Pernambuco States

Journal of Experimental Agriculture International ◽

10.9734/jeai/2019/v39i330336 ◽

2019 ◽

pp. 1-10

Author(s):

Flávia Gomes Da Silva ◽

Rosimar dos Santos Musser ◽

Mairon Moura Da Silva ◽

Patrícia Coelho de Souza Leão ◽

Jades Vital De Araujo ◽

...

Keyword(s):

Block Design ◽

Selection Index ◽

Titratable Acidity ◽

White Wine ◽

Pinot Noir ◽

Soluble Solids ◽

Vitis Vinifera L ◽

Cabernet Sauvignon ◽

Sauvignon Blanc ◽

Randomized Block Design

Aim: This study evaluate the agronomic and quality characteristics of grape (Vitis vinifera L.) varieties in a non-traditional region of the Agreste of Pernambuco States. Study Design: The experiment was conducted in a randomized block design with five replications and eight plants per plot. Place and Duration of Study: Was carried out in the municipality of Brejão, PE, at the Experimental Station of the Agronomic Institute of the Pernambuco. The vines were implanted on September, 2013, whose pruning was performed on August and harvesting began on December, 2016 to January, 2017. Methodology: Ten treatments represented by the varieties of European vines: Cabernet Sauvignon, Malbec, Merlot Noir, Petit Verdot, Pinot Noir and Syrah for producing of red wines and Chardonnay, Muscat Petit Grain, Sauvignon Blanc and Viogner for producing of white wines, grafted on the Paulsen 1103 rootstock were evaluated. The vineyard was conducted in espalier vine-tying system in double short pruning type, with spacing 3 m x 1 m. The characterization of the phenological stages was made using as reference the phenological scale. The thermal requirement of the crop per period was estimated. Agronomic characteristics were also evaluated, such as: fertility of gems, budding (%), production, productivity, number of bunches per plant, length and width of bunch, bunch weight, soluble solids, titratable acidity, hydrogen ionic potential, SS / TA ratio, volume of 100 berries, yield of must, mass of the husks and seeds. The data were submitted to two selection indices: Classic Index and Distance Genotype-Ideotype Index. Results: Sprouting varied from 13.68% (Petit Verdot) to 81.6% (Sauvignon Blanc) and the fertility of gems from 0.1 bunch.bud-1 (Chardonnay) to 0.67 bunch.bud-1 (Sauvignon Blanc). The pruning cycle and Day Degrees (DD) cumulated ranged from 133 days and 1,684 DD (Muscat Petit Grain) to 167 days and 2,070 DD (Merlot Noir). The number of bunches ranged from five (Merlot Noir) to 29 bunches.plant-1 (Sauvignon Blanc). Muscat Petit Grain stood out for bunch weight, not differing from Syrah and Malbec. The varieties showed no difference in length and width of bunches. In the volume of 100 berries, Muscat Petit Grain (213.6 ml) and Malbec (216.0 ml) stood out. For the yield of must, Sauvignon Blanc (70.87%) stood out, not differing from Malbec (64.31%), Viognier (69.79%), Muscat Petit Grain (70.22%). Muscat Petit Grain, Sauvignon Blanc and Viognier (white wine), Cabernet Sauvignon, Malbec, Merlot Noir and Syrah obtained acceptable values for soluble solids (SS), titratable acidity (TA), SS/TA ratio and pH. From the selection index analyzes, the Muscat Petit Grain, Cabernet Sauvignon and Syrah varieties were indicated for the selection by the highest Mulamba and Mock index and by the Genotype-Ideotype distance index. Conclusion: The cycle of grapevine varieties evaluated in the Garanhuns, PE, Microregion is longer than that observed in the sub Medio of the São Francisco Valley, similar to those in the South Region of Brazil. In the evaluated cycle the varieties produced grapes with characteristics suitable for the production of quality fine wines, showing to be promising for this non-traditional microregion in the production of fine grapes. From the selection index analyzes, the Muscat Petit Grain, Syrah and Cabernet Sauvignon varieties were indicated for selection by the highest Mulamba and Mock index and Genotype-Ideotype distance index.

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Can Sustained Deficit Irrigation Save Water and Meet the Quality Characteristics of Mango?

Agriculture ◽

10.3390/agriculture11050448 ◽

2021 ◽

Vol 11 (5) ◽

pp. 448

Author(s):

Leontina Lipan ◽

Aarón A. Carbonell-Pedro ◽

Belén Cárceles Rodríguez ◽

Víctor Hugo Durán-Zuazo ◽

Dionisio Franco Tarifa ◽

...

Keyword(s):

Irrigation Water ◽

Deficit Irrigation ◽

Block Design ◽

Water Productivity ◽

Titratable Acidity ◽

Soluble Solids ◽

Total Phenolic ◽

Drought Tolerant ◽

Randomized Block Design ◽

Peel Color

Mango is one of the most cultivated tropical fruits worldwide and one of few drought-tolerant plants. Thus, in this study the effect of a sustained deficit irrigation (SDI) strategy on mango yield and quality was assessed with the aim of reducing irrigation water in mango crop. A randomized block design with four treatments was developed: (i) full irrigation (FI), assuring the crop’s water needs, and three levels of SDI receiving 75%, 50%, and 33% of irrigation water (SDI75, SDI50, and SDI33). Yield, morphology, color, titratable acidity (TA), total soluble solids (TSS), organic acids (OA), sugars, minerals, fiber, antioxidant activity (AA), and total phenolic content (TPC) were analyzed. The yield was reduced in SDI conditions (8%, 11%, and 20% for SDI75, SDI50, and SDI33, respectively), but the irrigation water productivity was higher in all SDI regimes. SDI significantly reduced the mango size, with SDI33 generating the smallest mangoes. Peel color significantly changed after 13 days of ripening, with SDI75 being the least ripe. The TA, AA, and citric acid were higher in SDI75, while the TPC and fiber increased in all SDI levels. Consequently, SDI reduced the mango size but increased the functionality of samples, without a severe detrimental effect on the yield.

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PERANAN TRICHOKOMPOS DAN PUPUK KCL DALAM MENGENDALIKAN PENYAKIT LAYU FUSARIUM PADA TANAMAN BAWANG MERAH DI TANAH BERPASIR (The Role of Trichokompos and KCL Fertilizer to Control Fusarium Will Disease on Onion in Sandy Soil)

AgriPeat ◽

10.36873/agp.v20i01.21 ◽

2019 ◽

Vol 20 (01) ◽

pp. 19-26

Author(s):

Admin Journal

Keyword(s):

Research Design ◽

Fusarium Wilt ◽

Sandy Soil ◽

Incubation Time ◽

Block Design ◽

Wilt Disease ◽

Single Factor ◽

Fusarium Wilt Disease ◽

Randomized Block Design

ABSTRACTThe role of Trichocompost and KCl fertilizer to control Fusarium wilt disease on onion in sandy soil. Fusarium wilt on onion is an interesting disease it is can loss the onion yield. The purpose of research to study trichocompost and KCl fertilizer role to control Fusarium wilt disease on ann onion. The research design used a Factorial Randomized Block Design with 2 factors. The first factor is 4 levels trichocompost, it is: without trichocompost (T0), trichocompost 10 t.ha-1 dosage (T1), trichocompost 20 t.ha-1 dosage (T2), trichocompost 30 t.ha-1 dosage (T3). The second factor is 3 levels KCl fertilizer, it is: without KCl (K0), KCl 100 kg.ha-1 dosage (K1), KCl 200 kg.ha-1 dosage (K2). Result of this research showed the application of trichocompost 10 t.ha-1 dosage and KCl 100 kg.ha-1 dosage can inhibit Fusarium wilt incubation time, can inhibit the patogen development with effective value 89,23%, the single factor it is aplication trichocompost 10 t.ha-1 dosage and trichocompost 30 t.ha-1 dosage not significant to dried onion bulb weight per clump of onion plant.Key words: Trichocompost, KCl fertilizer, Fusarium wilt disease, onion, sandy soil.ABSTRAKPenyakit layu Fusarium merupakan salah satu penyakit penting dapat menurunkan produksi bawang merah hingga 50%. Tujuan penelitian untuk mengetahui peranan trichokompos dan pupuk KCl dalam mengendalikan penyakit layu fusarium pada tanaman bawang merah. Penelitian menggunakan Rancangan Acak Kelompok faktorial dua faktor perlakuan. Faktor pertama 4 taraf dosis trichokompos yaitu: tanpa trichokompos (T0), trichokompos dosis 10 t.ha-1 (T1), trichokompos dosis 20 t.ha-1 (T2), trichokompos dosis 30 t.ha-1 (T3). Faktor kedua 3 taraf dosis pupuk KCl yaitu: tanpa pupuk KCl (K0), pupuk KCl dosis 100 KCl kg.ha-1 (K1), pupuk KCl dosis 200 KCl kg.ha-1 (K2). Hasil penelitian menunjukkan pemberian trichokompos 10 t.ha-1 dan pupuk KCl 100 kg.ha-1 dapat memperpanjang masa inkubasi penyakit, menekan serangan penyakit layu Fusarium dengan nilai efektivitas sangat baik (89,23%), perlakuan tunggal trichokompos dosis 10 t.ha-1 tidak berbeda nyata dengan dosis 30 t.ha-1 terhadap bobot umbi kering per rumpun tanaman bawang merah.Kata kunci: penyakit layu Fusarium, pupuk KCl, tanah berpasir, tanaman bawang merah, trichokompos.

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Molybdenum mixed with glyphosate and alone via foliar spray in no-tillage common bean grown on corn stover

Revista CERES ◽

10.1590/s0034-737x2014000100008 ◽

2014 ◽

Vol 61 (1) ◽

pp. 62-69

Author(s):

Gessimar Nunes Camelo ◽

Geraldo Antonio de Andrade Araújo ◽

Renildes Lucio Ferreira Fontes ◽

Luiz Antonio dos Santos Dias ◽

José Eustáquio de Souza Carneiro ◽

...

Keyword(s):

Common Bean ◽

Corn Stover ◽

Field Experiments ◽

Block Design ◽

Foliar Spray ◽

Cumulative Effect ◽

No Tillage ◽

Randomized Block Design ◽

Tillage System ◽

Mo Content

The effect of molybdenum (Mo) on common bean grown in desiccated corn stover in a no-tillage system was evaluated under two application modes: Mo mixed with the desiccant glyphosate and Mo direct spray to the bean leaves. The treatments (four replicates) were assigned to a completely randomized block design in a split-plot arrangement with the application of Mo (0, 100, 200, 400 and 800 g ha-1) mixed with glyphosate in the main plots and Mo foliar spray (0 and 100 g ha-1) in the sub-plots. The field experiments were carried out in 2009 and 2010 in the municipality of Coimbra, Minas Gerais State, with the common bean cultivar Ouro Vermelho. Mo mixed with glyphosate had neither an effect on common bean yield nor on the Mo and N contents in leaves, however it increased the Mo and N contents in seeds. Application of Mo via foliar spray increased Mo content in leaves and Mo and N contents in seeds. The reapplication of molybdenum with glyphosate for desiccation in subsequent crops caused a cumulative effect of Mo content in bean seeds.

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Melon fruit yield and quality as a function of doses and times of biostimulant application

Research Society and Development ◽

10.33448/rsd-v9i7.3911 ◽

2020 ◽

Vol 9 (7) ◽

pp. e130973911

Author(s):

Roberto Cleiton Fernandes de Queiroga ◽

Zaqueu Lopes da Silva ◽

Odair Honorato Oliveira de ◽

Elidayane da Nóbrega Santos ◽

Higínio Luan Oliveira Silva ◽

...

Keyword(s):

Block Design ◽

Fruit Production ◽

Soluble Solids ◽

Application Time ◽

Time Of Application ◽

Yield And Quality ◽

Randomized Block Design ◽

Semi Arid Region ◽

Fruit Mass

The objective of this study was to evaluate the productivity and quality of melon fruits as a function of the dose and time of application of biostimulant in the conditions of the semi-arid region of Paraíba. The experiment was carried out at the Federal University of Campina Grande, campus of Pombal - PB, Brazil, in a randomized block design in a 4 x 5 split plot scheme, with doses of biostimulant (0; 0.5; 1.0; 1, 5 and 2.0 L ha-1) and in the subset of the biostimulant application times (15; 20; 25 and 30 days before harvest - DAC), in four replications. Characteristics related to fruit production and quality were evaluated. There was no interaction between the factors of dose and application time of the biostimulant in any of the evaluated characteristics. Thus, the highest estimated values of number of fruits per plant, fruit mass and total melon production were obtained with the application of doses ranging from 0.9 to 1.5 L ha-1 and at the time of application it varied from 22,5 to 23.6 DAC. The content of soluble solids increased 5.5% when the biostimulant dose of 2.0 L ha-1 was used and 4.4% when the product was applied 15 days before harvest.

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Establishment Techniques on Yield and Economics of Pigeon Pea [Cajanus cajan (L.)] in North Western Zone of Tamil Nadu

Legume Research - An International Journal ◽

10.18805/lr-4261 ◽

2020 ◽

Author(s):

C. Sivakumar ◽

A. Krishnaveni ◽

M. Pandiyan ◽

N. Tamilselvan

Keyword(s):

Cajanus Cajan ◽

Tamil Nadu ◽

Field Experiments ◽

Block Design ◽

Pigeon Pea ◽

Research Station ◽

Net Income ◽

Randomized Block Design ◽

Western Zone ◽

North Western

Field experiments were conducted to study the effect of establishment techniques on yield and economics of red gram [Cajanus cajan (L.)] under irrigated condition at Regional Research Station, Tamil Nadu Agricultural University, Paiyur - 635 112,Tamil Nadu, India during Kharif season of 2013-14 and 2014-15 respectively in randomized block design with four replications. The treatments are line sowing/dibbling of seeds, sowing behind the country plough, sowing in polybag and transplanting at 25 and 40 DAS, sowing in portrays and transplanting in 25 and 40 DAS. The redgram variety LRG 41 was used for study. The results revealed that, dibbling of seeds in lines recorded higher grain yield of 2351 kg ha-1, net income of Rs.99495/- and B:C ratio of 3.39. Thus, dibbling of seeds in lines recorded 6% higher over sowing in poly bag and transplanting at 25 DAS and 27% higher yield over sowing behind the country plough. Considering yield and economics, line sowing seems to better option for the farmers followed by sowing in polybags and transplanted in 25 DAS. Under transplanted situation, transplanting of seedlings at 30 DAS was more suitable where the monsoon was delayed for 30 to 45 days under rainfed situation.

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