scholarly journals Botrytis bunch rot on 'Sauvignon Blanc' grapevine on the Y-trellis and vertical shoot-positioned training systems

2017 ◽  
Vol 52 (9) ◽  
pp. 818-822 ◽  
Author(s):  
Betina Pereira de Bem ◽  
Amauri Bogo ◽  
Ricardo Allebrandt ◽  
José Luiz Marcon Filho ◽  
Douglas André Würz ◽  
...  
Keyword(s):  
Block Design ◽  
Field Trials ◽  
Climatic Conditions ◽  
Total Polyphenols ◽  
Total Polyphenol ◽  
Sauvignon Blanc ◽  
Training Systems ◽  
Randomized Complete Block Design ◽  
Cluster Compactness ◽  
Bunch Rot

Abstract: The objective of this work was to evaluate the effect of the Y-trellis (YT) and vertical shoot-positioned (VSP) training systems on the incidence and severity of Botrytis cinerea, on cluster compactness, and total polyphenol (TP) contents of 'Sauvignon Blanc' grapevine in the municipality of São Joaquim, in the state of Santa Catarina, Brazil. Field trials were carried out in a randomized complete block design during the 2013/2014 and 2014/2015 crop seasons, with assessments performed at harvest. The YT system causes a higher incidence and severity of botrytis bunch rot under climatic conditions favorable to the pathogen, as well as greater cluster compactness, than the VSP system, without affecting the content of total polyphenols of 'Sauvignon Blanc' grapevine.

scholarly journals Performance evaluation of quality protein maize genotypes across various maize production agro ecologies of Nepal

2015 ◽  
Vol 1 (1) ◽  
pp. 21-27 ◽  
Author(s):  
Jiban Shrestha ◽  
Keshab B Koirala ◽  
Ram B. Katuwal ◽  
Narayan B Dhami ◽  
Bhanu B Pokhrel ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Block Design ◽  
Field Trials ◽  
Climatic Conditions ◽  
Summer Season ◽  
Quality Protein Maize ◽  
Maize Production ◽  
Maize Genotypes ◽  
Randomized Complete Block Design ◽  
Superior Genotypes

To identify superior quality protein maize genotypes for grain yield under different agro climatic conditions of terai and hill districts in Nepal, the coordinated varietal trials (CVT) were conducted at Dailekh, Doti, Salyan, Lumle and Pakhribas in 2013 and Salyan, Pakhribas and Kabre in 2014 during summer season and coordinated farmer’s field trials (CFFT) at Surkhet and Dailekh in 2013 and Salyan, Pakhribas and Khumaltar in 2014 during summer season. The experiment was carried out using randomized complete block design with three replications for CVT and CFFT. Across the locations and years the superior genotypes found under CVT were S01SIYQ, S01SIWQ-2 and Poshilo Makai-1 where as S99TLYQ-HG-AB, S99TLYQ-B and Poshilo Makai-1 were found superior genotypes under CFFT. The superior genotypes derived from CFFT will be promoted further for similar environments across the country.Journal of Maize Research and Development (2015) 1(1):21-27DOI: http://dx.doi.org/10.5281/zenodo.34282

scholarly journals On-Farm Adaptation of Some Oilseed Crops Under Acidic Soil of Sylhet Region in Bangladesh

2021 ◽  
Vol 23 (2) ◽  
pp. 87-95
Author(s):  
MI Nazrul ◽  
M Akkas Ali
Keyword(s):  
Crop Production ◽  
Production Systems ◽  
Block Design ◽  
Field Trials ◽  
Climatic Conditions ◽  
Oilseed Crops ◽  
Improved Varieties ◽  
Randomized Complete Block Design ◽  
On Farm ◽  
Sylhet Region

Screening of improve varieties for new areas is necessary to address the soil and environment for improving crop production systems. In this context, six separate field trials were conducted at farmer’s field in Sylhet areas for the two consecutive crop seasons during 2017-18 and 2018-19, respectively to evaluate the performance of improved varieties of crops with the existing cultivars. Each experiment was laid out in randomized complete block design with six dispersed replications. The unit plot size was varied with experiments. The result showed that improved varieties of oilseed   crops mustard var. BARI Sarisha-16, soybean var. BARI Soybean-6, groundnut var. BARI Chinabadam-9, sesame var. BARI Til-4 and sunflower var. BARI Surjomukhi-2 performed better under the soil and climatic conditions of Sylhet region. This result reveled that these varieties of oilseed crops could be suitable for higher productivity and economic return. Bangladesh Agron. J. 2020, 23(2): 87-95

scholarly journals Wines produced with 'Cabernet Sauvignon' grapes from the region of Bagé in the state of Rio Grande do Sul, Brazil

2017 ◽  
Vol 52 (5) ◽  
pp. 311-318
Author(s):  
Renata Gimenez Sampaio Zocche ◽  
Suziane Antes Jacobs ◽  
Norton Victor Sampaio ◽  
Velci Queiróz de Souza ◽  
Ivan Ricardo Carvalho ◽  
...  
Keyword(s):  
Reducing Sugars ◽  
Block Design ◽  
Cabernet Sauvignon ◽  
Color Intensity ◽  
Total Polyphenols ◽  
Growing Seasons ◽  
Sodium Calcium ◽  
Randomized Complete Block Design ◽  
Total Anthocyanins ◽  
Calcium Magnesium

Abstract: The objective of this work was to characterize 'Cabernet Sauvignon' wines made from grapes cultivated in the region of Bagé, RS, Brazil, during three crop seasons. A randomized complete block design was carried out with three treatments and three replicates.The evaluations were performed for the 2004, 2007, and 2008 growing seasons. 'Cabernet Sauvignon' wines of the 2004, 2008, and 2009 harvests differed for the following parameters: density, alcoholic content, total acidity, pH, reducing sugars, OD 420, 520, and 620, color intensity, total anthocyanins, total polyphenols, sodium, calcium, magnesium, manganese, copper, iron, rubidium, phosphorus, methanol, propanol, 2-methyl-l-propanol, 2, 3 - methyl-l-butanol, and sum of alcohols. 'Cabernet Sauvignon' has potential to be produced in the Bagé region, and to help it to become a wine growing region in Brazil.

scholarly journals Evaluation of experimental designs in durum wheat trials

2015 ◽  
Vol 52 (2) ◽  
pp. 105-114
Author(s):  
Anastasios Katsileros ◽  
Christos Koukouvinos
Keyword(s):  
Durum Wheat ◽  
Block Design ◽  
Field Trials ◽  
Experimental Designs ◽  
Incomplete Block ◽  
Wheat Genotypes ◽  
Randomized Complete Block Design ◽  
Experimental Plots

Abstract Variability among experimental plots may be a relevant problem in field genotype experiments, especially when a large number of entries are involved. Four field trials on 24 durum wheat genotypes were conducted in 2013/14 in order to evaluate the efficiency of Incomplete Block, Alpha and Augmented designs in comparison with the traditional Randomized Complete Block Design (RCBD). The results showed that the RCBD can be replaced by an Alpha design, which provides better control of variability among the experimental units when the number of treatments to be tested in an experiment exceeds twenty. The ranking of the genotypes across the four designs was not constant.

scholarly journals Adjusting planting time of Binadhan-17 in boro season

2021 ◽  
pp. 21-27
Author(s):  
Shampa Rani Ghosh ◽  
Sushan Chowhan ◽  
Snigdha Roy ◽  
Dinesh Chandra Roy ◽  
Md. Khan Jahan Ali ◽  
...  
Keyword(s):  
Block Design ◽  
Field Trials ◽  
Morphological Data ◽  
Main Field ◽  
Short Life ◽  
Rice Varieties ◽  
Nitrogenous Fertilizer ◽  
Sowing Dates ◽  
Randomized Complete Block Design ◽  
Disease Free

Boro rice (grown in winter under irrigated condition) contributes to the major portion of rice production (over 50%) in Bangladesh. Binadhan-17 is a green super rice developed by BINA which requires 30% less nitrogenous fertilizer and water which is grown in aman season (primely produced under rainfed). Due to it’s increasing popularity and adoption rice growers are keen to cultivate it in boro season also. Taking account of the above situation, two field trials were conducted at Magura during November 2019 to May 2020 to investigate the effect of variety, sowing dates and their interaction. Factorial RCBD (Randomized Complete Block Design) was applied for experimentation. Two rice varieties: Binadhan-17 (V1), BRRI dhan58 (V2) and three sowing times: 30th November (T1), 10th December (T2), 20th December (T3) were used as treatments. 35 days old seedlings were transplanted in main field. Relevant agronomic and morphological data were statistically analyzed through Statistix 10.0. Combined effect of the above factors at farm exposed that, T1×V1 required longest days (159.33 days) to mature. but, comparatively short life cycle (149.97 days) was observed by T3×V2. Maximum grain was yielded (7.70 t/ha) by T2×V1 and minimum (5.74 t/ha) by T1×V1 treatment combination. Outcomes of on station revealed that, T1×V1 needed more days (158.00 days) to mature; conversely, alike duration was noted with T2×V2 (147.20 days) and T3×V2 (145.43 days) which matured quite earlier. T2×V1 produced the highest grain yield (7.41 t/ha) and T1×V2 the lowest (5.94 t/ha). Our results indicate that, planting of Binadhan-17 on 10th December may give insect-disease free grains with optimum yield in context of Magura region. Farmers will be financially benefited if they cultivate this variety in the boro season in lieu of aman; due to higher yield

scholarly journals Response Of Maize Varieties To Sowing Dates In Inner Terai Region, Dang, Nepal

2019 ◽  
Vol 2 (2) ◽  
pp. 27-31
Author(s):  
Pukar Khanal ◽  
Rupak Karn ◽  
Pratibha Budhathoki Chhetri ◽  
Samita Karki ◽  
Shrawan Kumar Sah
Keyword(s):  
Unit Area ◽  
Block Design ◽  
Climatic Conditions ◽  
Spring Season ◽  
Thousand Grain Weight ◽  
Maize Hybrids ◽  
Sowing Dates ◽  
Maize Varieties ◽  
Randomized Complete Block Design ◽  
Hybrid Maize

AbstractSowing dates and varieties affect the productivity of maize. A field experiment was conducted to find out the response of maize hybrids to sowing dates on growth and productivity of maize in spring season at Lamahi, Dang in 2019. The experiment was laid out in two factor factorial Randomized Complete Block Design with four replications. The treatment consisted of combination of three different sowing dates (February 1, February12 and February 23) and two maize varieties (Arun-2 i.e. OPV and hybrid Bioseed-9220).The result revealed that earlier planting on February 1 produced the highest yield (8265 Kg ha-1) which was significantly superior than latter planting of February 12(6099 kg ha-1)and February 23 (5934 kg ha-1).The higher yield in earlier planting was due to significantly higher no of kernel per ear, non-significant but higher number of cob per unit area, thousand grain weight. Similarly, Bioseed 9220 produced higher yield (7798 kg ha-1) compared to Arun-2 (5,734 kg ha-1). The higher yield of hybrid Bioseed 9220 was because of higher number of cob per unit area harvested and more number of kernel per cob. Therefore, earlier planting with hybrid maize is recommended in spring season of Dang and locations with similar climatic conditions for higher productivity of maize.

scholarly journals Semi-Minimal Pruned Hedge: A Potential Climate Change Adaptation Strategy in Viticulture

Agronomy ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 173 ◽  
Author(s):  
Daniel Molitor ◽  
Mareike Schultz ◽  
Robert Mannes ◽  
Marine Pallez-Barthel ◽  
Lucien Hoffmann ◽  
...  
Keyword(s):  
Climate Change ◽  
Climate Change Adaptation ◽  
Field Trials ◽  
Adaptation Strategy ◽  
Climatic Conditions ◽  
Training System ◽  
Soluble Solids ◽  
Maturity Period ◽  
Mechanical Thinning ◽  
Bunch Rot

The low-input viticultural training system ‘Semi-minimal pruned hedge’ (SMPH) is progressively being more widely applied in the Central European grapegrowing regions. The present study examined the influence of (i) the training system (SMPH versus the vertical shoot position (VSP) system), (ii) the timing of shoot topping in SMPH, and (iii) the effects of mechanical thinning in SMPH on the bunch rot epidemic, grape maturity, and yield. Six-year field trials on Pinot blanc in Luxembourg demonstrated that yield levels in non-thinned SMPH treatments were 74% higher, and total soluble solids (TSS) at harvest 2.2 brix lower than in VSP. Non-thinned SMPH delayed the bunch rot epidemic and the maturity progress by 18 and 11 days compared to VSP, respectively. Different shoot-topping timings in SMPH did not affect the tested parameters. Mechanical thinning regimes reduced the yield by 28% (moderate thinning) and 53% (severe thinning) compared to non-thinned SMPH and increased TSS by 0.8 and 1.3 brix, respectively. Delayed bunch rot epidemic and maturity progress give rise to the opportunity for a longer maturity period in cooler conditions, making this system of particular interest in future, warmer climatic conditions. Providing that yield levels are managed properly, SMPH might represent an interesting climate change adaptation strategy.

Gibberellin Application Improved Bunch Rot Control of Vignoles Grape, but Response to Mechanical Defoliation Varied between Training Systems

Plant Disease ◽  
2020 ◽  
pp. PDIS-06-20-1184
Author(s):  
Bryan Hed ◽  
Michela Centinari
Keyword(s):  
Soluble Sugar ◽  
Control Program ◽  
Titratable Acidity ◽  
Training System ◽  
Cluster Architecture ◽  
Training Systems ◽  
Positive Effects ◽  
Treatment Responses ◽  
Cluster Compactness ◽  
Bunch Rot

Late-season bunch rot causes significant crop loss for grape growers in wet and humid climates. For 3 years (2016 to 2018), we integrated prebloom mechanized defoliation (MD) in the fruit zone and bloom gibberellin (GA) applications, either alone or in combination, into the bunch rot control program of Vignoles, a commercially valuable grape variety that is highly susceptible to bunch rot. We hypothesized that both treatments would decrease bunch rot through modification of cluster architecture or fruit zone microclimate compared with vines treated with the standard chemical control program. Grapevines were trained to two popular training systems, four-arm Kniffin (4AK) and high-wire bilateral cordon (HWC). Treatment responses varied between training systems. MD, alone or in combination with GA, reduced bunch rot incidence and severity every year on 4AK-trained vines, an effect attributed mainly to fruit zone improvements. Conversely, MD alone did not reduce bunch rot incidence on HWC-trained vines, despite significant improvements in cluster architecture (reduced number of berries per cluster and cluster compactness). GA applications were more effective than MD at reducing cluster compactness, regardless of training system. As a result, GA reduced bunch rot incidence and severity when applied alone or with MD on 4AK- and HWC-trained vines. All treatments positively improved fruit-soluble sugar concentration on both training systems, while positive effects on titratable acidity were more consistent across training systems with MD.

scholarly journals Rendimiento de la planta de frijol caupí [Vigna unguiculata (L.) Walp] y calidad nutricional en los sistemas de cultivo intercalado de frijol caupí y sorgo

2021 ◽  
Vol 12 (2) ◽  
pp. 402-418
Author(s):  
Muhammad Aamir Iqbal ◽  
Asif Iqbal ◽  
Zahoor Ahmad ◽  
Ali Raza ◽  
Junaid Rahim ◽  
...  
Keyword(s):  
Dry Matter ◽  
Block Design ◽  
Field Trials ◽  
Forage Yield ◽  
Row Spacing ◽  
Viable Solution ◽  
Randomized Complete Block Design ◽  
Line Spacing ◽  
Strip Intercropping

In traditional row and strip cowpea-sorghum intercropping systems, cowpea forage yield reduces significantly due to intense competition and dominance of sorghum in acquiring growth resources. This field study evaluated novel mixed strip intercropping systems of forage cowpea and sorghum having different number of crops rows arranged under different spatial arrangements. Cowpea was intercropped with sorghum in 8, 12 and 16 rows strips with row-row spacing of 30, 45 and 60 cm. In each strip, equal number of rows of cowpea and sorghum were maintained. Factorial arrangement of randomized complete block design with three replicates was used to execute the field trials during summer seasons of 2013 and 2014. Strips having 12 rows and 60 cm row-row spacing positively affected all agronomic variables of cowpea which led to maximum forage yield (22.2 and 23.7 t ha-1 during 2013 and 2014 respectively) and dry matter biomass (6.63 and 6.94 t ha-1 during 2013 and 2014 respectively). In contrast, 8-rows strips having line spacing of 30 cm outperformed other intercropping systems by yielding the maximum herbage yield and dry matter biomass of sorghum. The intercropping system comprising of 12-rows strips with 60 cm row-row spacing remained superior in recording the maximum crude protein, fats and total ash along with the minimum fiber content of cowpea. In addition, this intercropping system under rest of spatial arrangements also remained unmatched, while 16-rows strips under all planting geometries remained inferior to other intercropping systems. Thus, cowpea intercropping with sorghum in 12-rows strips having 60 cm spacing offers biologically viable solution to improve biomass and forage quality of cowpea in intercropping with sorghum.

scholarly journals Response of `Chardonnay' Grapevines to Training and Crop Control

HortScience ◽  
1995 ◽  
Vol 30 (4) ◽  
pp. 800G-801
Author(s):  
Thomas J. Zabadal ◽  
Gary R. VanEe ◽  
Thomas W. Dittmer ◽  
Richard L. Ledebuhr
Keyword(s):  
Fruit Quality ◽  
Soluble Solids ◽  
Training Systems ◽  
Intermediate Response ◽  
Cluster Compactness ◽  
Bunch Rot ◽  
Growing Conditions

Growing conditions in Michigan can threaten the yield and acceptable fruit quality of `Chardonnay' grapevines. Three grapevine training systems, mid-wire cordon (MWC), umbrella kniffin (UK), and a combination of the two (MWC-UK) were evaluated under Michigan growing conditions to determine their influence on yield, fruit quality, cluster compactness, incidence and severity of Botrytis bunch rot, and trellis fill. Vines were grown on C3309 rootstock and pruned to 44 nodes per kilogram of cane prunings. The MWC-UK treatment had an additional 30 nodes per vine retained, and the crop level on these nodes was removed after fruitset. Over a 2-year period, UK and MWC-UK trained vines had fruit soluble solids about 1 °Brix higher and yields were 48% and 63% higher than MWC trained vines, respectively. MWC-UK trained vines consistently out-performed MWC trained vines for all variables measured, while UK-trained vines provided an intermediate response.

Sign in / Sign up

Export Citation Format

Share Document