M. A, Kumar U, Singh D K, S. k, Atheequlla, Sinha P K, S. P
Every year the horticultural sector of India faces huge quantity of food wastage due to lack of processing, value addition and post-harvest handling. Farmers Producer Company (FPC) can mitigate the loss through ensuring better value chain management. There are several horticulture based FPCs established in different parts of India. They have grown very fast and competing with agro-industries. The present study aimed to assess the performance of FPCs working in horticulture sector. The study was conducted in Maharashtra State of India by selecting three FPCs working in horticultural sector. Performance of these FPCs was assessed through Effectiveness Index developed for this study. Seven components viz. functional effectiveness, increase in income, increase in farmers share in consumers rupees, inclusiveness, sustainability of company, farmers satisfaction and empowerment were included in the index by following standard index forming protocol. Sahyadri Farms was found the best performing one among the selected FPCs, regarding effectiveness with a mean index score of 63.69 followed by Vasundhara Agro Producer Company Limited (50.20) and Junnar Taluka FPC Ltd. (41.29).
由于缺乏加工、增值和收获后处理，印度的园艺部门每年都面临着大量的食物浪费。农民生产者公司(FPC)可以通过确保更好的价值链管理来减轻损失。在印度不同地区建立了几个以园艺为基础的fpc。它们发展得非常快，并与农产工业竞争。本研究的目的是评估在园艺部门工作的fpc的绩效。这项研究是在印度马哈拉施特拉邦进行的，选择了三名从事园艺部门工作的fpc。通过为本研究开发的有效性指数对这些fpc的性能进行评估。按照标准指数形成协议，将功能有效性、收入增加、农民消费卢比份额增加、包容性、公司可持续性、农民满意度和赋权七个组成部分纳入指数。Sahyadri农场在选定的FPC中表现最好，在有效性方面的平均指数得分为63.69，其次是Vasundhara Agro Producer Company Limited(50.20)和Junnar Taluka FPC Ltd(41.29)。
{"title":"Assessing performance of horticultural farmers producer companies: Comparative case study","authors":"M. A, Kumar U, Singh D K, S. k, Atheequlla, Sinha P K, S. P","doi":"10.24154/jhs.v17i2.1187","DOIUrl":"https://doi.org/10.24154/jhs.v17i2.1187","url":null,"abstract":"Every year the horticultural sector of India faces huge quantity of food wastage due to lack of processing, value addition and post-harvest handling. Farmers Producer Company (FPC) can mitigate the loss through ensuring better value chain management. There are several horticulture based FPCs established in different parts of India. They have grown very fast and competing with agro-industries. The present study aimed to assess the performance of FPCs working in horticulture sector. The study was conducted in Maharashtra State of India by selecting three FPCs working in horticultural sector. Performance of these FPCs was assessed through Effectiveness Index developed for this study. Seven components viz. functional effectiveness, increase in income, increase in farmers share in consumers rupees, inclusiveness, sustainability of company, farmers satisfaction and empowerment were included in the index by following standard index forming protocol. Sahyadri Farms was found the best performing one among the selected FPCs, regarding effectiveness with a mean index score of 63.69 followed by Vasundhara Agro Producer Company Limited (50.20) and Junnar Taluka FPC Ltd. (41.29).","PeriodicalId":36766,"journal":{"name":"Journal of Horticultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74028660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
N. Bhandari, Srivastava R K, Tarakeshwari K R, Chand S
The investigation was executed with nine treatments viz. nano forms of ferrous sulfide (7, 14, 21, 28 ppm) and macro ferrous sulphate (0.2, 0.4, 0.6, 0.8 per cent) along with control, and were applied as foliar sprays after 30 days of transplanting on two varieties of calendula namely Fiesta Gitana Mix’ and ‘Fiesta Yellow’ during 2018 and 2019. The experiment was laid out in factorial randomized block design with three replications. Application of 0.8 % FeSO4 recorded maximum number of branches (26.75), plant height (29.73 cm), plant spread (45.17 cm), number of leaves (22.63) and seed test weight (15.63 g) and number of flowers per plant (134.04). However, application of 0.2% macro FeSO4 resulted in early bud appearance (50.50 days) and higher flower diameter (8.09 cm). ‘Fiesta Gitana Mix’ outperformed over ‘Fiesta Yellow’ for most of the vegetative and floral characters. The ‘Fiesta Yellow’ variety with oil content (13.97%) had an edge over ‘Fiesta Gitana Mix’.
{"title":"Effect of nano and macro iron sprays on growth, flowering, seed and oil yielding attributes in calendula (Calendula officinalis L.)","authors":"N. Bhandari, Srivastava R K, Tarakeshwari K R, Chand S","doi":"10.24154/jhs.v17i2.1132","DOIUrl":"https://doi.org/10.24154/jhs.v17i2.1132","url":null,"abstract":"The investigation was executed with nine treatments viz. nano forms of ferrous sulfide (7, 14, 21, 28 ppm) and macro ferrous sulphate (0.2, 0.4, 0.6, 0.8 per cent) along with control, and were applied as foliar sprays after 30 days of transplanting on two varieties of calendula namely Fiesta Gitana Mix’ and ‘Fiesta Yellow’ during 2018 and 2019. The experiment was laid out in factorial randomized block design with three replications. Application of 0.8 % FeSO4 recorded maximum number of branches (26.75), plant height (29.73 cm), plant spread (45.17 cm), number of leaves (22.63) and seed test weight (15.63 g) and number of flowers per plant (134.04). However, application of 0.2% macro FeSO4 resulted in early bud appearance (50.50 days) and higher flower diameter (8.09 cm). ‘Fiesta Gitana Mix’ outperformed over ‘Fiesta Yellow’ for most of the vegetative and floral characters. The ‘Fiesta Yellow’ variety with oil content (13.97%) had an edge over ‘Fiesta Gitana Mix’.","PeriodicalId":36766,"journal":{"name":"Journal of Horticultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74691441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Manjunath B.L., Anil K. Nair, Laxman R H, Abhilasha C N
Field experiments were conducted in mango for four years during 2017-2020 at ICAR-Indian Institute of Horticultural Research to standardise optimum soil volume wetting for drip irrigation. Wetting soil volume upto 70% recorded higher mean fruit yield of 34.8 kg/plant (9.68 t/ha)and with further increase in the level of soil volume wetting irrigation (upto 80%), there was a decline in the mango yield (7.40 t/ha). Similarly, significantly increased response was observed in fruit weight upto 70% soil volume irrigation (226 g) although there were no significant differences in the TSS of the fruit. Significantly higher water use efficiency was observed for 30% soil volume wetting irrigation (274.1 kg/m3) and further no significant differences were observed in water use efficiency between 50% and 70% soil volume wetting irrigations indicating that in areas of water scarcity, it is enough to scheduling the irrigation only upto 50% soil volume wetting in mango for economising the water (232.1 kg/m3).
{"title":"Standardisation of soil volume wetting for drip irrigation in mango (Mangifera indica L.,)","authors":"Manjunath B.L., Anil K. Nair, Laxman R H, Abhilasha C N","doi":"10.24154/jhs.v17i2.1022","DOIUrl":"https://doi.org/10.24154/jhs.v17i2.1022","url":null,"abstract":"Field experiments were conducted in mango for four years during 2017-2020 at ICAR-Indian Institute of Horticultural Research to standardise optimum soil volume wetting for drip irrigation. Wetting soil volume upto 70% recorded higher mean fruit yield of 34.8 kg/plant (9.68 t/ha)and with further increase in the level of soil volume wetting irrigation (upto 80%), there was a decline in the mango yield (7.40 t/ha). Similarly, significantly increased response was observed in fruit weight upto 70% soil volume irrigation (226 g) although there were no significant differences in the TSS of the fruit. Significantly higher water use efficiency was observed for 30% soil volume wetting irrigation (274.1 kg/m3) and further no significant differences were observed in water use efficiency between 50% and 70% soil volume wetting irrigations indicating that in areas of water scarcity, it is enough to scheduling the irrigation only upto 50% soil volume wetting in mango for economising the water (232.1 kg/m3).","PeriodicalId":36766,"journal":{"name":"Journal of Horticultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80173505","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Subhash Chander, Reju M Kurian, Satisha J, KK Upreti, RH Laxman
Annona cultivar ‘Arka Sahan’, an inter-specific hybrid of Annona atemoya × A. squamosacomes to harvest during August-September under mild tropical climate, which coincides with monsoon rains resulting in poor fruit quality and high susceptibility to anthracnose and fruit fly. An attempt was made to advance the fruiting in this hybrid through pruning during 2016- 17 and 2017-18. The effect of three pruning levels (25, 50 and 75% of previous season’s growth) at five different times (60, 75, 90, 105 and 120 days after final harvest of previous crop) on flowering and fruiting were compared. Early sprouting, flowering and fruit harvest were recorded in trees pruned to 75% of the past season’s growth in both the years. Earliest fruits were harvested 271 (3rd week of June) and 268 (2nd week of June) days after pruning in trees pruned during first week of October in 2016-17 and 2017-18 respectively (P<0.05).Bigger fruits with lesser seeds per 100 g of pulp (P<0.05) were harvested from trees pruned to 75% and 25% levels in the first and second year, respectively, irrespective of pruning time. Tree canopy following pruning at 75%level recorded higher light interception and photosynthetic rate (P<0.05). Pruning time and levels significantly influenced the biochemical constituents of leaf and shoot. The fruiting in cultivar ‘Arka Sahan’ could be thus advanced by 8-9 weeks to June from the normal season of August-September with comparable or better fruit quality by pruning 75% of the last season’s growth during October.
{"title":"Advancing fruiting season in Annona cv. Arka Sahan through pruning","authors":"Subhash Chander, Reju M Kurian, Satisha J, KK Upreti, RH Laxman","doi":"10.24154/jhs.v17i2.1434","DOIUrl":"https://doi.org/10.24154/jhs.v17i2.1434","url":null,"abstract":"Annona cultivar ‘Arka Sahan’, an inter-specific hybrid of Annona atemoya × A. squamosacomes to harvest during August-September under mild tropical climate, which coincides with monsoon rains resulting in poor fruit quality and high susceptibility to anthracnose and fruit fly. An attempt was made to advance the fruiting in this hybrid through pruning during 2016- 17 and 2017-18. The effect of three pruning levels (25, 50 and 75% of previous season’s growth) at five different times (60, 75, 90, 105 and 120 days after final harvest of previous crop) on flowering and fruiting were compared. Early sprouting, flowering and fruit harvest were recorded in trees pruned to 75% of the past season’s growth in both the years. Earliest fruits were harvested 271 (3rd week of June) and 268 (2nd week of June) days after pruning in trees pruned during first week of October in 2016-17 and 2017-18 respectively (P<0.05).Bigger fruits with lesser seeds per 100 g of pulp (P<0.05) were harvested from trees pruned to 75% and 25% levels in the first and second year, respectively, irrespective of pruning time. Tree canopy following pruning at 75%level recorded higher light interception and photosynthetic rate (P<0.05). Pruning time and levels significantly influenced the biochemical constituents of leaf and shoot. The fruiting in cultivar ‘Arka Sahan’ could be thus advanced by 8-9 weeks to June from the normal season of August-September with comparable or better fruit quality by pruning 75% of the last season’s growth during October.","PeriodicalId":36766,"journal":{"name":"Journal of Horticultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88217636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bhavya Chidambara, Dayanandhi Elangovan, Sadashiva Avverahally, K. Reddy, Ravishankar V. kundapura
Circular RNAs (CircRNAs) are covalently closed non-coding RNAs that play an important role in a variety of biological processes. CircRNA profiling helps to understand biological process associated with various abiotic and biotic stresses. In tomato genotype IIHR- 2611 (resistant to ToLCBaV), a total of 193 CircRNAs were discovered, of which 72 and 121 were found in control (RC) and ToLCBaV inoculated (RI) plants respectively. Among them, 103 (53 %) were exonic CircRNA regulating the expressions of their parent genes. Relative expression of CircRNAs 2:45295638|45295796, 2:51520741|51530067 and 7:67566489|67566691 and their respective parent genes Solyc02g080530.3 (peroxidase), Solyc02g088950.2 (superoxide dismutase) and Solyc07g065840.2.1 (heat shock protein 90) response to ToLCBaV infection were analysed at different time intervals. A significantly positive correlation was observed for the expression profiles of all three circRNAs and their parent genes. Furthermore, the differential expression across samples as well as time interval indicates that CircRNA mediated gene expression is involved in viral resistance. The results of the expression assays of both superoxide dismutase and peroxidase were consistent with enzyme analysis. Overall findings demonstrated the importance of CircRNAs in ToLCBaVD resistance and suggested that CircRNAs could be key regulators of gene expression during disease resistance in tomato.
{"title":"Identification of circular RNAs in resistant tomato genotype in response to ToLCBaV infection","authors":"Bhavya Chidambara, Dayanandhi Elangovan, Sadashiva Avverahally, K. Reddy, Ravishankar V. kundapura","doi":"10.24154/jhs.v17i2.1520","DOIUrl":"https://doi.org/10.24154/jhs.v17i2.1520","url":null,"abstract":"Circular RNAs (CircRNAs) are covalently closed non-coding RNAs that play an important role in a variety of biological processes. CircRNA profiling helps to understand biological process associated with various abiotic and biotic stresses. In tomato genotype IIHR- 2611 (resistant to ToLCBaV), a total of 193 CircRNAs were discovered, of which 72 and 121 were found in control (RC) and ToLCBaV inoculated (RI) plants respectively. Among them, 103 (53 %) were exonic CircRNA regulating the expressions of their parent genes. Relative expression of CircRNAs 2:45295638|45295796, 2:51520741|51530067 and 7:67566489|67566691 and their respective parent genes Solyc02g080530.3 (peroxidase), Solyc02g088950.2 (superoxide dismutase) and Solyc07g065840.2.1 (heat shock protein 90) response to ToLCBaV infection were analysed at different time intervals. A significantly positive correlation was observed for the expression profiles of all three circRNAs and their parent genes. Furthermore, the differential expression across samples as well as time interval indicates that CircRNA mediated gene expression is involved in viral resistance. The results of the expression assays of both superoxide dismutase and peroxidase were consistent with enzyme analysis. Overall findings demonstrated the importance of CircRNAs in ToLCBaVD resistance and suggested that CircRNAs could be key regulators of gene expression during disease resistance in tomato.","PeriodicalId":36766,"journal":{"name":"Journal of Horticultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86163216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
There is growing interest in the application of ultraviolet (UV-C) energy to control crop pathogens. In the present study, the efficacies of UV-C treatments for controlling cucumber downy mildew (Pseudoperonospora cubensis) were investigated on a commercial farm in eastern Massachusetts, USA. Controlled doses of UV-C, delivered by a tractor-mounted array of sources, between 120 and 480 J·m-2 were applied and compared to conventional fungicide treatments as well as to untreated controls, for each of two consecutive years (2020 and 2021). Visual assessments of foliar disease severity in the trial plots were made several times from planting through the end of productive life. In contrast to the successful control of powdery mildew, the UV-C treatments for controlling cucumber downy mildew were not as successful as conventional fungicides. None of the UV-C treatments affected the overall progression rate of downy mildew once the disease became apparent, although disease onset was delayed slightly compared to untreated controls. This delay may have been due to UV-C induced resistance to infection by the host. Unlike powdery mildews, downy mildew spores from P. cubensis are darkly pigmented, possibly decreasing the efficacy of the UV-C treatments for controlling the disease. DM spores may also be only susceptible to UV exposure prior to encysting in the leaves of the host, thereby perhaps limiting the window of opportunity when UV-C treatments can be effective. Although not the primary focus of this study, the use of reflective mulch appeared to delay disease onset relative to black mulch in fields with significant sunlight exposure, perhaps due to lowering plant stress by maintaining a lower soil temperature.
{"title":"Effectiveness of the Field Application of UV-C for Cucumber Downy Mildew Control","authors":"N. Skinner, Mark S Rea, John D. Bullough","doi":"10.24154/jhs.v17i2.1429","DOIUrl":"https://doi.org/10.24154/jhs.v17i2.1429","url":null,"abstract":"There is growing interest in the application of ultraviolet (UV-C) energy to control crop pathogens. In the present study, the efficacies of UV-C treatments for controlling cucumber downy mildew (Pseudoperonospora cubensis) were investigated on a commercial farm in eastern Massachusetts, USA. Controlled doses of UV-C, delivered by a tractor-mounted array of sources, between 120 and 480 J·m-2 were applied and compared to conventional fungicide treatments as well as to untreated controls, for each of two consecutive years (2020 and 2021). Visual assessments of foliar disease severity in the trial plots were made several times from planting through the end of productive life. In contrast to the successful control of powdery mildew, the UV-C treatments for controlling cucumber downy mildew were not as successful as conventional fungicides. None of the UV-C treatments affected the overall progression rate of downy mildew once the disease became apparent, although disease onset was delayed slightly compared to untreated controls. This delay may have been due to UV-C induced resistance to infection by the host. Unlike powdery mildews, downy mildew spores from P. cubensis are darkly pigmented, possibly decreasing the efficacy of the UV-C treatments for controlling the disease. DM spores may also be only susceptible to UV exposure prior to encysting in the leaves of the host, thereby perhaps limiting the window of opportunity when UV-C treatments can be effective. Although not the primary focus of this study, the use of reflective mulch appeared to delay disease onset relative to black mulch in fields with significant sunlight exposure, perhaps due to lowering plant stress by maintaining a lower soil temperature.","PeriodicalId":36766,"journal":{"name":"Journal of Horticultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76606184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Thirty nerium accessions were evaluated for growth and flower yield. Each accession had specific vegetative and flowering traits, among them ACC-19 (Rasipuram pink double) recorded the maximum plant height (236.84 cm) and flower yield per plant (333.09g). ACC-2 (Panamarathanpatty white single) recorded the maximum number of primary branches (6.80). Leaf area (33.61 cm2), early flower bud initiation (90.47), flower bud length (3.40), number of inflorescences per plant (24.17), number of flowers per plant (10.67) were maximum in ACC-12. Accessions 12 (Rasipuram pink single) displayed profuse blooming and long-lasting blooming characteristics, which made them an excellent choice for commercial cultivation and landscaping.
对30份钕材料的生长和花产量进行了评价。各品种均具有一定的营养和开花性状，其中ACC-19株高最高(236.84 cm)，单株花产量最高(333.09g)。ACC-2 (Panamarathanpatty white single)一次枝数最多，为6.80个。ACC-12的叶面积(33.61 cm2)、早花芽形成(90.47 cm2)、花芽长(3.40 cm2)、单株花序数(24.17 cm2)、单株花数(10.67 cm2)最大。品种12(粉单)开花时间长、花期长，是商业栽培和园林绿化的理想选择。
{"title":"Diversity assessment of Nerium accessions for growth and flower yield","authors":"R. G, Jawaharlal M, Allen J J, G. S","doi":"10.24154/jhs.v17i2.996","DOIUrl":"https://doi.org/10.24154/jhs.v17i2.996","url":null,"abstract":"Thirty nerium accessions were evaluated for growth and flower yield. Each accession had specific vegetative and flowering traits, among them ACC-19 (Rasipuram pink double) recorded the maximum plant height (236.84 cm) and flower yield per plant (333.09g). ACC-2 (Panamarathanpatty white single) recorded the maximum number of primary branches (6.80). Leaf area (33.61 cm2), early flower bud initiation (90.47), flower bud length (3.40), number of inflorescences per plant (24.17), number of flowers per plant (10.67) were maximum in ACC-12. Accessions 12 (Rasipuram pink single) displayed profuse blooming and long-lasting blooming characteristics, which made them an excellent choice for commercial cultivation and landscaping.","PeriodicalId":36766,"journal":{"name":"Journal of Horticultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85196719","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Late blight (Phytophthora infestans) is one of the devastating diseases of tomato worldwide. Field trial was carried out in Kharif 2019 and 2020 in Hesaraghatta, Bengaluru, Karnataka, India, to estimate yield loss due to late blight and to assess extent of protection in resistant genotype during late blight epiphytotics. Yield loss was calculated as per cent difference in yield between fungicides treated and unprotected plots in three F1 hybrids NS501, Arka Rakshak, both susceptible genotypes and Arka Abhed, a resistant genotype. Over two years, average yield loss due to late blight was 79.47 per cent in NS501, 75.53 per cent in Arka Rakshak and 12.84 per cent in Arka Abhed. With lower mean AUDPC values (147.22 in 2019 and 469.17 in 2020) and with low yield loss, Arka Abhed provided affordable protection against late blight. Our findings indicate late blight as an economically important peril to be considered for tomato yield loss coverage under insurance scheme in Bengaluru region. Arka Abhed hybrid can be cultivated to avert yield loss risk associated with late blight epiphytotics.
{"title":"Tomato late blight yield loss assessment and risk aversion with resistant hybrid","authors":"Sandeep Kumar G M, S. S, Laxman R H, Harshita K N","doi":"10.24154/jhs.v17i2.1105","DOIUrl":"https://doi.org/10.24154/jhs.v17i2.1105","url":null,"abstract":"Late blight (Phytophthora infestans) is one of the devastating diseases of tomato worldwide. Field trial was carried out in Kharif 2019 and 2020 in Hesaraghatta, Bengaluru, Karnataka, India, to estimate yield loss due to late blight and to assess extent of protection in resistant genotype during late blight epiphytotics. Yield loss was calculated as per cent difference in yield between fungicides treated and unprotected plots in three F1 hybrids NS501, Arka Rakshak, both susceptible genotypes and Arka Abhed, a resistant genotype. Over two years, average yield loss due to late blight was 79.47 per cent in NS501, 75.53 per cent in Arka Rakshak and 12.84 per cent in Arka Abhed. With lower mean AUDPC values (147.22 in 2019 and 469.17 in 2020) and with low yield loss, Arka Abhed provided affordable protection against late blight. Our findings indicate late blight as an economically important peril to be considered for tomato yield loss coverage under insurance scheme in Bengaluru region. Arka Abhed hybrid can be cultivated to avert yield loss risk associated with late blight epiphytotics.","PeriodicalId":36766,"journal":{"name":"Journal of Horticultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83991685","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Flacourtia montana J. Graham wild edible fruit tree, endemic to the Western Ghats, India was found infected with leaf spot disease. Based on morphological characteristics, molecular analyses (ITS and LSU) and pathogenicity, the pathogen was identified as Lasiodiplodia theobromae (Pat.) Griffon & Maubl. (Botryosphaeriaceae).This is the first report of L. theobromae causing leaf spots on F. montana from Western Ghats, India.
印度西高止山脉特有的野生食用果树Flacourtia montana J. Graham被发现感染了叶斑病。基于形态特征、分子分析(ITS和LSU)和致病性，鉴定该病原菌为Lasiodiplodia theobromae (Pat.)。Griffon & Maubl。(Botryosphaeriaceae)。本文首次报道了产自印度西高山间山脉的枯叶枯斑病菌。
{"title":"First report of Lasiodiplodia theobromae causing leaf spot on Flacourtia montana, a wild edible fruit tree of Western Ghats, India","authors":"Rasmi C K, Shambhu Kumar, Jose P A","doi":"10.24154/jhs.v17i2.1269","DOIUrl":"https://doi.org/10.24154/jhs.v17i2.1269","url":null,"abstract":"Flacourtia montana J. Graham wild edible fruit tree, endemic to the Western Ghats, India was found infected with leaf spot disease. Based on morphological characteristics, molecular analyses (ITS and LSU) and pathogenicity, the pathogen was identified as Lasiodiplodia theobromae (Pat.) Griffon & Maubl. (Botryosphaeriaceae).This is the first report of L. theobromae causing leaf spots on F. montana from Western Ghats, India.","PeriodicalId":36766,"journal":{"name":"Journal of Horticultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81305955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
R. Tetteh, L. M. Aboagye, E. A. Osafo, R. Darko, Augustine Dassah, Jennifer Obirih-Opareh
Rambutan (Nephelium lappaceum L.) is an important exotic fruit from Asia, which is gaining popularity due to its nutritional benefits. The objective of the study was to evaluate the effect of tree age on fruit characteristics, seed emergence and seedling growth of rambutan. The study was conducted at the CSIR-Plant Genetic Resources Research Institute, Bunso, Ghana. Fruits of rambutan were harvested from 8, 10, 25 and 40 years old trees at different locations of the field genebank. For each tree age, three trees were used as replicates. Fruits harvested from trees of different ages were assessed for total fruit weight, pulp weight, pericarp weight, seed weight, percentage seed emergence, seedling plant height and number of leaves at monthly intervals. Fruits harvested from 8, 10, 25 and 40 years old trees did not show significant difference in fruit characteristics and seed emergence. Significant (p<0.05) differences were observed in plant height and number of leaves at 5 and 6 months after emergence, respectively.
{"title":"Effect of tree age on fruit characteristics, seed emergence and seedling growth in Rambutan (Nephelium lappaceum L.)","authors":"R. Tetteh, L. M. Aboagye, E. A. Osafo, R. Darko, Augustine Dassah, Jennifer Obirih-Opareh","doi":"10.24154/jhs.v17i1.991","DOIUrl":"https://doi.org/10.24154/jhs.v17i1.991","url":null,"abstract":"Rambutan (Nephelium lappaceum L.) is an important exotic fruit from Asia, which is gaining popularity due to its nutritional benefits. The objective of the study was to evaluate the effect of tree age on fruit characteristics, seed emergence and seedling growth of rambutan. The study was conducted at the CSIR-Plant Genetic Resources Research Institute, Bunso, Ghana. Fruits of rambutan were harvested from 8, 10, 25 and 40 years old trees at different locations of the field genebank. For each tree age, three trees were used as replicates. Fruits harvested from trees of different ages were assessed for total fruit weight, pulp weight, pericarp weight, seed weight, percentage seed emergence, seedling plant height and number of leaves at monthly intervals. Fruits harvested from 8, 10, 25 and 40 years old trees did not show significant difference in fruit characteristics and seed emergence. Significant (p<0.05) differences were observed in plant height and number of leaves at 5 and 6 months after emergence, respectively.","PeriodicalId":36766,"journal":{"name":"Journal of Horticultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2022-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89391314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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