Locally Available Organic Waste for Counteracting Strawberry Decline in a Mountain Specialized Cropping Area

Crop decline caused by soil borne fungal pathogens affects specialized cropping systems such as fruit trees and strawberry. A study was carried out to investigate the effectiveness of pre-plant application of waste-derived biomasses in strawberry (Fragaria × ananassa) to reduce that phenomenon. A field experiment was carried out in an alpine strawberry specialized valley in South Tyrol (Italy), in a long term cultivated field selected for yield reduction over recent years. In July 2018, one month before strawberry transplanting, a field experiment with four soil treatments was set up: anaerobic digestate (solid fraction) of liquid manure, compost from anaerobic digestate of organic fraction of municipal solid waste (OFMSW), untreated control and Dazomet as chemical control. Plants were grown for two cycles (2019 and 2020). Dazomet always gave a significant (over 50%) increase in marketable yield per plant in both the years, anaerobic digestates did not improve strawberry production; compost from OFMSW gave phytotoxic effects in the first year, but improved strawberry yield like Dazomet in the second. Changes of rhizosphere bacterial populations and difference in root pathogen abundance, especially that of Dactylonectria torresensis, were correlated to the crop response to treatments. Findings suggest that waste-derived biomasses are a promising eco-friendly option for counteracting strawberry yield decline. Their positive impact was mostly linked to functional improvements induced by microbial variations. However, the use of such organic amendment requires careful evaluation of composition, doses and above all application times to reduce phytotoxic effects that in some cases can occur in the first months after application.

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Effect of Heat Resource Effectiveness Change on Rice Potential Yield in Southern China

Processes ◽

10.3390/pr9050896 ◽

2021 ◽

Vol 9 (5) ◽

pp. 896

Author(s):

Qing Ye ◽

Xiaoguang Yang ◽

Wenjuan Xie ◽

Junmeng Yao ◽

Zhe Cai

Keyword(s):

Southern China ◽

Cropping Systems ◽

Reduction Rate ◽

Growing Season ◽

Scientific Basis ◽

Yield Reduction ◽

Percentage Increase ◽

Potential Yield ◽

Effective Heat ◽

Rice Growing Season

During the rice growing season, farmers’ decisions about cropping systems and seed varieties directly affect the utilization of heat resource, and eventually affect the potential yield. In this study, we used the hourly accumulated temperature model to calculate the available heat resource as well as the effective heat resource in southern China. We conducted a spatiotemporal analysis of the heat resource effectiveness during rice growing season and an impact assessment of heat resource effectiveness on rice potential yield and cereal yield reduction. The results showed that, during the period of 1951–2015, heat resource effectiveness generally declined in the rice cropping area of southern China. And this decrease worsened during the most recent three decades compared with the period of 1951–1980. A strong correlation was detected between heat resource effectiveness and rice potential yield in the study area. When the effective heat resource during the growing season increased by 1 °C·d, rice potential yield would increase by 14 kg ha−1. For each percentage increase in heat resource effectiveness, the rice potential yield reduction rate would go down by 0.65%. This agro-climatological study aims to offer a scientific basis for rice production decisions in southern China, such as when to plant, which varieties to choose and so on.

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Comparative Potential of Different Botanicals and Synthetic Insecticides and Their Economics Against Leucinodes Orbonalis in Eggplant

Journal of Plant Protection Research ◽

10.2478/v10045-012-0006-7 ◽

2012 ◽

Vol 52 (1) ◽

pp. 35-39

Author(s):

Sharma Kumar ◽

Haseeb Masarrat ◽

Qamar Muntaha

Keyword(s):

Field Experiment ◽

Integrated Pest Management ◽

Pest Management ◽

Active Substance ◽

Cultural Practices ◽

Seed Kernel ◽

Neem Seed ◽

Marketable Yield ◽

Leucinodes Orbonalis ◽

Cultural Methods

Comparative Potential of Different Botanicals and Synthetic Insecticides and Their Economics Against Leucinodes Orbonalis in Eggplant The field experiment was conducted to evaluate the potential of two botanicals viz; ozoneem and neem seed kernel extract (NSKE) and three chemical insecticides viz; imidacloprid, alphamathrin, chlorpyriphos 50% EC + cypermethrin 5% EC against Leucinodes orbonalis, during the years from 2008 to 2009. Botanicals were tested alone and in combination with cultural practices. On the basis of the pooled means, the results revealed that three sprays of chlorpyriphos + cypermethrin @ 0.01% active substance (a.s.) in 15 days intervals was found to be the most economical, resulting in minimum shoot (2.15%) and fruit (12.95%) infestation respectively, followed by alphamathrin @ 0.01% a.s. with a highest marketable yield of 87.77 q/ha. Maximum marketable yield was received from the treatment with alphamathrin, but due to high costs involved in the use of this chemical, it took second place. Three sprays of NSKE @ 5 ml/lt. recorded a maximum of shoot (3.91%) and fruit (24.49%) infestation, respectively. However, shoot and fruit infestation was brought down and marketable yield increased to some extent, when these treatments were combined with cultural methods. It is therefore, suggested that the combination of chlorpyriphos 50% EC + cypermethrin 5% EC, being the most effective and economically viable insecticide, can be utilized as a valuable chemical component in Integrated Pest Management to manage the L. orbonalis in eggplant crop.

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Effect of flooding on growth and yield of mungbean genotypes

Bangladesh Journal of Agricultural Research ◽

10.3329/bjar.v41i1.27680 ◽

2016 ◽

Vol 41 (1) ◽

pp. 151-162 ◽

Cited By ~ 1

Author(s):

MR Amin ◽

MA Karim ◽

MR Islam ◽

S Aktar ◽

MA Hossain

Keyword(s):

Field Experiment ◽

Seed Size ◽

Seed Yield ◽

Field Conditions ◽

Growth And Yield ◽

Yield Reduction ◽

Plant Seed ◽

Days To Flowering ◽

Soil Flooding ◽

Standing Water

The field experiment was carried out with some selected mungbean genotypes viz. IPSA-13, VC-6173A, BU mug 2, BARI Mung-5 and IPSA-12 to observe the effect of 4-days flooding on their growth and yield of mungbean under field conditions at Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh during September to November, 2011 maintaining 3-5 cm standing water at 24 days after emergence. Days to flowering and maturity delayed in flooded plants over control depending on the genotypes. Flooding significantly reduced Total Day Matters (TDM), number of pods per plant, seed size and seed yield of the mungbean genotypes over control. Considering higher seed yield, larger seed size and less yield reduction relative to control VC-6173A, BU mug 2 and IPSA-13 were found tolerant to soil flooding condition.Bangladesh J. Agril. Res. 41(1): 151-162, March 2016

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Effect of rejuvenation pruning on the growth, productivity and disease incidence in declining trees of pomegranate (Punica granatum L.) cv. Kandhari Kabuli

Journal of Applied and Natural Science ◽

10.31018/jans.v10i1.1630 ◽

2018 ◽

Vol 10 (1) ◽

pp. 358-362

Author(s):

D. P. Sharma ◽

Niranjan Singh

Keyword(s):

Bacterial Blight ◽

Disease Incidence ◽

Fruit Size ◽

Punica Granatum ◽

Fruit Trees ◽

Fruit Weight ◽

Shoot Length ◽

Marketable Yield ◽

Disease Attack ◽

Punica Granatum L

Pruning of fruit trees is an important aspect for the improvement of fruit quality and to minimize the pests and disease attack. Pruning was performed in the month of December in seven year old unpruned trees of Punica granatum cv. Knadhdri Kabuli having many interfering branching and a heavy infestation of bacterial blight orchard. The pruning treatments viz., T1: Retention of 15cm fruiting shoot length, T2: Retention of 30cm fruiting shoot length, T3: Retention of 45cm fruiting shoot length, T4: Retention of 60cm fruiting shoot length and T5: control (No heading back and no thinning) plant. The results of the present investigation revealed that among different pruning treatment, the best results in terms of shoot extension (56.34 cm), fruit size (Diameter 9.66 cm and Length 9.65 cm, fruit weight (278.50 g), marketable yield (10.25 kg) and fruit qualities were in fruits from T1 and T2 where retention of 15cm fruiting shoot length respectively and retention of 30cm fruiting shoot length were maintained. However, maximum fruit set (54.73%) was recorded in control, and it decreased with increasing pruning intensity. The pruning treatments also proved beneficial in controlling bacterial blight on fruit (12.86%) and leaf surface (26.60%) to some extent.

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KERAPATAN GALUR HARAPAN KAPAS PADA SISTEM TUMPANGSARI DENGAN KEDELAI

Jurnal Penelitian Tanaman Industri ◽

10.21082/jlittri.v9n1.2003.11-16 ◽

2020 ◽

Vol 9 (1) ◽

pp. 11

Author(s):

PRIMA DIARINI RIAJAYA ◽

FITRININGDYAH TRI KADARWATI

Keyword(s):

Glycine Max ◽

Gossypium Hirsutum ◽

Field Experiment ◽

Key Words ◽

Photosynthetic Efficiency ◽

Cropping Systems ◽

Cotton Yield ◽

Systems Research ◽

Crop Density ◽

Plot Design

Penelitian pengaturan kerapalan galur harapan kapas pada sistem tumpangsari dengan kedelai dilakukan di IPPTP Mojosari, Mojokerto, Jawa Timur pada lahan sawah sesudah padi dari bulan Mei sampai dengan Oktobcr 2000. Tujuan penelitian untuk mendapatkan kerapalan lanaman yang sesuai pada galur harapan kapas pada sistem tumpangsari dengan kedelai Percobaan disusun dalam rancangan petak tcrbagi dengan 4 varictas'galur (92016/6, 91001 29 2, 88003/16/2 dan Kanesia 7) sebagai pelak utama Anak petak terdiri atas 3 tata tanam yaitu (1) tala tanam 1(1); 3, yaitu I bans kapas (I tan 'lubang) dan 3 bais kedelai, (2) tata tanam 2 (1) 4 yaitu 2 baris kapas(l tan.'lubang) dan 4 baris kedelai, (3) tata tanam 1 (2)3 yaitu 1 baris (2 tan 'lubang dan 3 bais kedelai) Jarak lanam kapas dan kedelai pada (ala tanam 1(1) 3 adalah 150 x 20 cm dan 25 x 20 cm, pada tata tanam 2( I ):4 adalah 150 (60) cm x 30 cm dan 20 cm x 20 cm, dan tata tanam 1 (2) 3 adalah 150 cm x 30 cm dan 25 cm x 20 cm Hasil penelitian menunjukkan bahwa lata tanam yang sesuai pada galur varietas baru kapas adalah tata tanam 1(1)3 |1 baris kapas (1 tan lubang) dan tiga baris kedelai] Mengurangi jumlah lanaman kapas tiap lubang dari 2 menjadi I lanaman pada tata tanam 1 (2)3 (1 baris kapas (2 lan lubang) dan 3 bais kedelai) meningkatkan eisiensi fotosintcsis dai 59 x 10 menjadi 9.4 x 10"" mgC02.mgll20 sehingga produksi kapas meningkat dari 1 167 2 menjadi I 251 6 kgha, sedangkan produksi kedelai tidak berpengaruh yaitu rata-rata 846 kgha Apabila dialur dalam sistem 2:4 (2 baris kapas diantara 4 baris kedelai), maka eisiensi fotosintcsis hanya meningkat dari 5.9 x \0A menjadi 77 x 10 mg C02mg H20 sehingga produksi kapas hanya meningkat dari I 167 2 menjadi I 206 2 kgha Pada kedua sistem lanam tersebut produktivitas galur 8800316/2 (1 323.3 kgha) lidak berbeda dengan Kanesia 7 (I 365.2 kg/ha) dan nyata lebih tinggi daripada galur 920166 (1 096 9 kgha) maupun 91001.29/2 (1 048 0 kgha).Kata kunci: Gossypium hirsutum. kapas. Glycine Max, kedelai, kerapatan lanaman, tumpangsari, hasil ABSTRACTDensity of neyv cotton lines under intercropping system with soybeanThe ield trial on different crop densities for new cotton lines under intercropping system with soybean was conducted in Mojosari. East Java from May lo October 2000 on the rice ield ater harvest. The purpose of the study was to investigate die optimum population for new cotton lines under intercropping with soybean The field experiment was arranged in a Split Plot Design with three replications. Pour new cotton lines were allocated lo main plots 92016 6, 91001/29.2 (okra leal). 88003/16/2 and Kanesia 7 'Three crop arrangements were allocated to sub-plots: 1 (1 ):3 [1 cotton row (I plant/hole) in between 3 rows of soybean), 2(1 ):4 [ 2 coton rows (1 plant/hole) in between 4 rows of soybean, and 1(2):3 (1 cotton row (2 planlholc) in between 3 rows of soybean). Two replications for sole crops of cotton and soybean were included in this expeiment lo compare both cropping systems. Research showed that by keeping one cotton plant/hole under intercropping system wi(h soybean in arrangement of 1:3 11 conon row in between 3 rows of soybean), increased the photosynthetic efficiency from 5 9 x 10"* to 9.4 x 10"* mg C02/mg H20, causing cotton yield increased from 1167.2 to 1 251.6 kg/ha; however soybean yield did not differ between different propotions of cotton and soybean (846 kg/ha) Under arrangement of Iwo cotton rows * four rows of soybean, the photosynthetic efficiency increased from 5.9 x 10"1 to 7.7 x 10"* mg COj'mg HjO resulted in increased cotton yield from I 167.2 lo 1 206.2 kgha Ihe yield of line 88003/16 2 (1 323.3 kgha) did not differ with that on Kanesia 7 (I 365.2 kg/ha); both were higher than those on 92016/6 (1 096.9 kg/ha) and 91001 /29/2 (1 048.0 kgha).Key words: Gossypium hirsutum, kapas. Glycine Max, soybean, crop density, intercropping, yield

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Accumulation of soil carbon under zero tillage cropping and perennial vegetation on the Liverpool Plains, eastern Australia

Soil Research ◽

10.1071/sr08104 ◽

2009 ◽

Vol 47 (3) ◽

pp. 273 ◽

Cited By ~ 54

Author(s):

R. R. Young ◽

B. Wilson ◽

S. Harden ◽

A. Bernardi

Keyword(s):

Field Experiment ◽

Soil Carbon ◽

Cropping Systems ◽

Annual Rainfall ◽

Continuous Cropping ◽

Zero Tillage ◽

Accumulation Rates ◽

Eastern Australia ◽

Perennial Vegetation ◽

Semi Arid

Australian agriculture contributes an estimated 16% of all national greenhouse gas emissions, and considerable attention is now focused on management approaches that reduce net emissions. One area of potential is the modification of cropping practices to increase soil carbon storage. Here, we report short–medium term changes in soil carbon under zero tillage cropping systems and perennial vegetation, both in a replicated field experiment and on nearby farmers’ paddocks, on carbon-depleted Black Vertosols in the upper Liverpool Plains catchment. Soil organic carbon stocks (CS) remained unchanged under both zero tillage long fallow wheat–sorghum rotations and zero tillage continuous winter cereal in a replicated field experiment from 1994 to 2000. There was some evidence of accumulation of CS under intensive (>1 crop/year) zero tillage response cropping. There was significant accumulation of CS (~0.35 Mg/ha.year) under 3 types of perennial pasture, despite removal of aerial biomass with each harvest. Significant accumulation was detected in the 0–0.1, 0.1–0.2, and 0.2–0.4 m depth increments under lucerne and the top 2 increments under mixed pastures of lucerne and phalaris and of C3 and C4 perennial grasses. Average annual rainfall for the period of observations was 772 mm, greater than the 40-year average of 680 mm. A comparison of major attributes of cropping systems and perennial pastures showed no association between aerial biomass production and accumulation rates of CS but a positive correlation between the residence times of established plants and accumulation rates of CS. CS also remained unchanged (1998/2000–07) under zero tillage cropping on nearby farms, irrespective of paddock history before 1998/2000 (zero tillage cropping, traditional cropping, or ~10 years of sown perennial pasture). These results are consistent with previous work in Queensland and central western New South Wales suggesting that the climate (warm, semi-arid temperate, semi-arid subtropical) of much of the inland cropping country in eastern Australia is not conducive to accumulation of soil carbon under continuous cropping, although they do suggest that CS may accumulate under several years of healthy perennial pastures in rotation with zero tillage cropping.

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Effects of Palmer Amaranth (Amaranthus palmeri) Establishment Time and Distance from the Crop Row on Biological and Phenological Characteristics of the Weed: Implications on Soybean Yield

Weed Science ◽

10.1017/wsc.2018.84 ◽

2019 ◽

Vol 67 (1) ◽

pp. 126-135 ◽

Cited By ~ 8

Author(s):

Nicholas E. Korres ◽

Jason K. Norsworthy ◽

Andy Mauromoustakos

Keyword(s):

Seed Production ◽

Weed Management ◽

Cropping Systems ◽

Management Strategies ◽

Palmer Amaranth ◽

Yield Reduction ◽

Amaranthus Palmeri ◽

Soybean Yield ◽

Management Measures ◽

Weed Population Dynamics

AbstractInformation about weed biology and weed population dynamics is critical for the development of efficient weed management programs. A field experiment was conducted in Fayetteville, AR, during 2014 and 2015 to examine the effects of Palmer amaranth (Amaranthus palmeriS. Watson) establishment time in relation to soybean [Glycine max(L.) Merr.] emergence and the effects ofA. palmeridistance from the soybean row on the weed’s height, biomass, seed production, and flowering time and on soybean yield. The establishment time factor, in weeks after crop emergence (WAE), was composed of six treatment levels (0, 1, 2, 4, 6, and 8 WAE), whereas the distance from the crop consisted of three treatment levels (0, 24, and 48 cm). Differences inA. palmeribiomass and seed production averaged across distance from the crop were found at 0 and 1 WAE in both years. Establishment time had a significant effect onA. palmeriseed production through greater biomass production and height increases at earlier dates.Amaranthus palmerithat was established with the crop (0 WAE) overtopped soybean at about 7 and 10 WAE in 2014 and 2015, respectively. Distance from the crop affectedA. palmeriheight, biomass, and seed production. The greater the distance from the crop, the higherA. palmeriheight, biomass, and seed production at 0 and 1 WAE compared with other dates (i.e., 2, 4, 6, and 8 WAE).Amaranthus palmeriestablishment time had a significant impact on soybean yield, but distance from the crop did not. The earlierA. palmeriinterfered with soybean (0 and 1 WAE), the greater the crop yield reduction; after that period no significant yield reductions were recorded compared with the rest of the weed establishment times. Knowledge ofA. palmeriresponse, especially at early stages of its life cycle, is important for designing efficient weed management strategies and cropping systems that can enhance crop competitiveness. Control ofA. palmeriwithin the first week after crop emergence or reduced distance between crop and weed are important factors for an effective implementation of weed management measures againstA. palmeriand reduced soybean yield losses due to weed interference.

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Dominant symbiotic bacteria associated with wild medfly populations reveal a bacteriocin-like killing phenotype: a ‘cold-case’ study

Bulletin of Entomological Research ◽

10.1017/s0007485319000816 ◽

2019 ◽

Vol 110 (4) ◽

pp. 457-462

Author(s):

Silvia Ciolfi ◽

Laura Marri

Keyword(s):

Bacterial Species ◽

Klebsiella Oxytoca ◽

Pcr Amplification ◽

Fruit Trees ◽

Antagonistic Activity ◽

Culture Collection ◽

Symbiotic Bacteria ◽

Bacterial Populations

AbstractThe gut of the agricultural pest Ceratitis capitata hosts a varied community of bacteria, mainly Enterobacteriaceae, that were implicated in several processes that increase the fitness of the insect. In this study, we investigated the antagonistic activity in vitro of Klebsiella oxytoca strains isolated in the 1990s from the alimentary tract of wild medflies collected from different varieties of fruit trees at diverse localities. Assays were carried out against reference strains (representative of Gram-negative and -positive bacterial species) of the American Type Culture Collection (ATCC). Eight Klebsiella, out of 11, expressed a killing activity against Escherichia coli ATCC 23739, and Enterobacter cloacae ATCC 13047; among the eight strains, at least one showed activity against Salmonella typhimurium ATCC 23853. Genomic DNA derived from all Klebsiella strains was then subjected to PCR amplification using specific primer pairs designed from each of the four bacteriocin (KlebB, C, D, CCL) sequences found so far in Klebsiella. KlebD primer pairs were the only to produce a single product for all strains expressing the killing phenotype in vitro. One of the amplicons was cloned and sequenced; the DNA sequence shows 93% identity with a plasmid-carried colicin-D gene of a strain of Klebsiella michiganensis, and 86% identity with the sequence encoding for the klebicin D activity protein in K. oxytoca. Our work provides the first evidence that dominant symbiotic bacteria associated with wild medfly populations express a killing phenotype that may mediate inter and intraspecies competition among bacterial populations in the insect gut in vivo.

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Performance of rice varieties with types of seedling under late planted lowland situation

Agricultural Science Digest - A Research Journal ◽

10.18805/ag.d-4664 ◽

2017 ◽

Vol 37 (04) ◽

Author(s):

K. Thakuria ◽

R. K. Saud ◽

C. Thakuria

Keyword(s):

Field Experiment ◽

Rice Variety ◽

Yield Reduction ◽

Cost Ratio ◽

Planting Dates ◽

Rice Varieties ◽

Yield Attributes ◽

Straw Yield ◽

Benefit Cost Ratio ◽

Benefit Cost

A field experiment was conducted under late planted lowland situations during wet seasons of 2012 and 2013 at Jorhat to evaluate the performance of 3 late planted sali (kharif) rice varieties (Prafulla, Gitesh and Monoharsali) under 3 planting dates (10, 20 and 30 September) with 2 types of seedling (Nursery seedling and double planted seedling). Results revealed that delaying planting dates from 10 September to 30 September significantly and consistently reduced both grain and straw yields along with all the yield attributing characters during both the years. On an average, the grain and straw yield reduction being 58.3 and 19.3 per cent, respectively. Among the varieties tested, rice variety ‘Monoharsali’ outyielded the variety, ‘Prafulla’ and ‘Gitesh’. Double planted seedlings of 60 days (30 + 30 days) old recorded significantly higher yields and all the yield attributes over the use of 60 days nursery seedling. The highest net return and benefit-cost ratio was recorded when rice variety, ‘Monoharsali’ was transplanted on 10 September using 60 days (30 + 30 days) double planted seedling.

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A multiple case study analysis of Six Sigma practices in Indian manufacturing companies

International Journal of Quality & Reliability Management ◽

10.1108/ijqrm-10-2014-0157 ◽

2016 ◽

Vol 33 (8) ◽

pp. 1138-1149 ◽

Cited By ~ 10

Author(s):

Jiju Antony ◽

E.V. Gijo ◽

Vikas Kumar ◽

Abhijeet Ghadge

Keyword(s):

Six Sigma ◽

Positive Impact ◽

Empirical Studies ◽

Yield Reduction ◽

Manufacturing Companies ◽

Study Analysis ◽

Organisational Performance ◽

Content Type ◽

Case Study Analysis

Purpose The purpose of this paper is to explore the fundamental barriers/challenges, benefits, commonly used tools and techniques, organisational infrastructure and impact on organisational performance in three Indian manufacturing companies. Design/methodology/approach A multi-case study analysis using the exploratory case study research was adopted by the authors to obtain a deeper insight into the Six Sigma implementation within three distinctive manufacturing organisations in India. Interviews were conducted with relevant staff (Six Sigma Deployment Champions, Six Sigma Master Black Belts and Six Sigma Black Belts) in all three companies. Findings Some of the barriers in implementing and sustaining Six Sigma identified from the case studies include: lack of accuracy of data generated from the processes, lack of understanding of the benefits of Six Sigma in the early stages of its adoption, high-attrition rate of Six Sigma Black Belts and so on. The benefits of Six Sigma included improvement of process yield, reduction of rework and rejection, reduction of raw material inventory, improved on-time delivery, on-time availability of material for production and so on. Supplier-input-process-output-customer, cause and effect diagram, process mapping, hypothesis tests (two sample test, F-test, etc.), control charts (X-bar-R chart, individual chart, etc.), simple graphical tools such as histograms, box plots and dot plots were the most commonly used tools of Six Sigma across the companies that participated for this research. All three companies have reported that Six Sigma had a positive impact on organisational performance and moreover the study also revealed that Six Sigma had positive impact on customer satisfaction, return-on-investment, productivity and product quality. Research limitations/implications The study was carried out in three Indian companies and therefore the findings cannot be generalised. The authors are extending the study to three more companies and the findings will be reported in the forthcoming months. Practical implications The findings of the study provide a good foundation to understand the fundamental barriers, benefits, commonly used tools and whether Six Sigma is having any impact on business performance in the Indian context. Very few empirical studies have been carried out on Six Sigma implementation in the Indian manufacturing companies and this research sets an agenda for a number of studies to follow on in the forthcoming years. Originality/value In authors’ opinion, this is possibly one of the first multi-case empirical studies on Six Sigma implementation in the Indian manufacturing companies. The results of the study can be used to benchmark with similar studies in other countries to understand the good and bad management practices of Six Sigma implementation.

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