Prashant H Nikumbhe, P. Meghwal, O. Meena, Pramendra, H. Meena
Ber is an indigenous and common fruit of India. It is commercially grown under wide climatic and soil conditions. Apple ber (Zizyphus jujube Mill) cultivar is gaining momentum in sub-tropical and tropical climatic conditions of West Bengal, Telangana, Andhra Pradesh, Maharashtra, Rajasthan, Gujarat and in several northern parts of India. It is precocious in bearing habit with bold and crispy fruits. Many factors including training practices affect vegetative and fruit quality parameters. Due to bolder and heavier fruits, the cultivar is prone for limbs breakage or complete tilting of plants which results in uneven fruiting, reduced fruit set, and higher fruit drop. Considering its appealing fruit taste and quality and to address the above mentioned issues, different training systems were evaluated to see its performance on three to four years old apple ber orchards. Plants were trained on different training systems viz. Y-Shape, Espalier training system and control. Observations were recorded on vegetative and fruit quality parameters. Training systems significantly influenced various vegetative, yield and fruit quality parameters. Vegetative parameters such as leaf area, physical and quality attributes viz., fruit weight and size, TSS, ascorbic acid, yield, and B: C ratio were better in Y-Shape training system. Hence, Y- Shape training system can be adopted to improve yield and fruit quality parameters in Apple ber.
它是印度本土常见的水果。它在广泛的气候和土壤条件下被商业化种植。在西孟加拉邦、特伦甘纳邦、安得拉邦、马哈拉施特拉邦、拉贾斯坦邦、古吉拉特邦和印度北部几个地区的亚热带和热带气候条件下，Apple ber (Zizyphus枣Mill)品种正在获得发展势头。早熟，果实粗壮脆脆。包括训练在内的许多因素都会影响营养和果实品质参数。由于果实粗壮厚重，植株容易断肢或完全倾斜，结果不均匀，坐果减少，落果率高。考虑到其诱人的水果味道和质量，并针对上述问题，对不同的培训系统进行了评估，以观察其在三到四年龄苹果园中的表现。植物在不同的训练系统上进行训练，即Y-Shape、Espalier训练系统和控制。记录了营养和果实品质参数的观察结果。训练系统显著影响各种营养、产量和果实品质参数。在y型培养体系中，叶面积、果实重量和大小、TSS、抗坏血酸、产量和B: C比等营养参数表现较好。因此，可以采用Y型训练系统来提高苹果产量和果实品质参数。
{"title":"Performance of Apple ber on different training systems in hot arid condition","authors":"Prashant H Nikumbhe, P. Meghwal, O. Meena, Pramendra, H. Meena","doi":"10.24154/jhs.v18i1.2147","DOIUrl":"https://doi.org/10.24154/jhs.v18i1.2147","url":null,"abstract":"Ber is an indigenous and common fruit of India. It is commercially grown under wide climatic and soil conditions. Apple ber (Zizyphus jujube Mill) cultivar is gaining momentum in sub-tropical and tropical climatic conditions of West Bengal, Telangana, Andhra Pradesh, Maharashtra, Rajasthan, Gujarat and in several northern parts of India. It is precocious in bearing habit with bold and crispy fruits. Many factors including training practices affect vegetative and fruit quality parameters. Due to bolder and heavier fruits, the cultivar is prone for limbs breakage or complete tilting of plants which results in uneven fruiting, reduced fruit set, and higher fruit drop. Considering its appealing fruit taste and quality and to address the above mentioned issues, different training systems were evaluated to see its performance on three to four years old apple ber orchards. Plants were trained on different training systems viz. Y-Shape, Espalier training system and control. Observations were recorded on vegetative and fruit quality parameters. Training systems significantly influenced various vegetative, yield and fruit quality parameters. Vegetative parameters such as leaf area, physical and quality attributes viz., fruit weight and size, TSS, ascorbic acid, yield, and B: C ratio were better in Y-Shape training system. Hence, Y- Shape training system can be adopted to improve yield and fruit quality parameters in Apple ber.","PeriodicalId":36766,"journal":{"name":"Journal of Horticultural Sciences","volume":"18 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88926280","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. Bhat, M. Dinesh, H. Vageeshbabu, G. Acharya, S. Dash, S. C. Swain
Papaya is an important fruit crop of the family Caricaceae which needs the improvement in terms of virus resistance and shelf life with dwarf stature. Mutation breeding technique has been considered as an efficient tool adopted by plant breeders to create variability in papaya. The mutation frequency and population structure of the mutants directly depend upon the type of mutagen and the time of exposure. Irrespective of the used mutagens, the ultimate induced mutations are random and therefore determination of mutagenic sensitivity is important pre-requisite. Based on this, investigation on the induction of mutation in papaya cv. Arka Prabhath was carried out with the objective of creating genetic variability through physical mutagen. In this study, papaya seeds were irradiated with five different dose of gamma rays ranging from 50 Gy to 500 Gy. The results revealed that gradual reduction in germination, survival of seedlings and delayed germination with increase in dosage of gamma rays. Based on probit analysis, LD50 (Lethal dose) was fixed at 186.24 Gy. Total seven types of chlorophyll mutants were observed as a result of mutation. Mutagenic efficiency and effectiveness were higher in a lower dose of gamma treatment (50 Gy).
{"title":"Determination of mutagenic sensitivity and its manifestations on papaya (Carica papaya L.) cv. Arka Prabhath","authors":"N. Bhat, M. Dinesh, H. Vageeshbabu, G. Acharya, S. Dash, S. C. Swain","doi":"10.24154/jhs.v18i1.2143","DOIUrl":"https://doi.org/10.24154/jhs.v18i1.2143","url":null,"abstract":"Papaya is an important fruit crop of the family Caricaceae which needs the improvement in terms of virus resistance and shelf life with dwarf stature. Mutation breeding technique has been considered as an efficient tool adopted by plant breeders to create variability in papaya. The mutation frequency and population structure of the mutants directly depend upon the type of mutagen and the time of exposure. Irrespective of the used mutagens, the ultimate induced mutations are random and therefore determination of mutagenic sensitivity is important pre-requisite. Based on this, investigation on the induction of mutation in papaya cv. Arka Prabhath was carried out with the objective of creating genetic variability through physical mutagen. In this study, papaya seeds were irradiated with five different dose of gamma rays ranging from 50 Gy to 500 Gy. The results revealed that gradual reduction in germination, survival of seedlings and delayed germination with increase in dosage of gamma rays. Based on probit analysis, LD50 (Lethal dose) was fixed at 186.24 Gy. Total seven types of chlorophyll mutants were observed as a result of mutation. Mutagenic efficiency and effectiveness were higher in a lower dose of gamma treatment (50 Gy).","PeriodicalId":36766,"journal":{"name":"Journal of Horticultural Sciences","volume":"8 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90018465","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}
Manpreet Kaur, Parveen Sharma, Akhilesh Sharma, Hem Lata, N. Kumar
The genetic diversity and population relationship was determined in 14 genotypes of parthenocarpic cucumber (Cucumis sativus L.) using simple sequence repeats (SSR) markers. In this study, fifty-nine SSR markers comprehensively showed polymorphism among cucumber genotypes. Total 252 alleles were identified with an average of 4.27 alleles per locus, while the polymorphism information content (PIC) of the primers ranged from 0.34 to 0.84 with a mean value of 0.62. The major allele frequency and heterozygosity ranged from 0.21 to 0.75 and from 0.43 to 0.89, respectively. Maximum major allele frequency was reported with primer Cs- Female-4, whereas the maximum value of polymorphic information content was found with the primer SSR11742. The dendrogram clustered genotypes into two main groups A and B with 8 and 6 genotypes, respectively. Jaccard’s similarity coefficient ranged from 0.63 to 0.86 with maximum similarity between genotypes DDPCG3 and PLP-1, whereas minimum similarity was observed between DDPCG8 and PLP Gy-1-08B. The population structure revealed three sub-populations with some admixtures. Principal coordinate analysis (PCoA) with SSR markers revealed that the genotypes were uniformly distributed across the two axes in both the plots with 41.76% of cumulative variation. The genetic divergence within indigenous genotypes allow genotypic identification, gene mapping and cloning for improvement in cucumber breeding.
{"title":"SSR analysis to assess genetic diversity and population structure in parthenocarpy cucumber (Cucumis sativus L.)","authors":"Manpreet Kaur, Parveen Sharma, Akhilesh Sharma, Hem Lata, N. Kumar","doi":"10.24154/jhs.v18i1.2146","DOIUrl":"https://doi.org/10.24154/jhs.v18i1.2146","url":null,"abstract":"The genetic diversity and population relationship was determined in 14 genotypes of parthenocarpic cucumber (Cucumis sativus L.) using simple sequence repeats (SSR) markers. In this study, fifty-nine SSR markers comprehensively showed polymorphism among cucumber genotypes. Total 252 alleles were identified with an average of 4.27 alleles per locus, while the polymorphism information content (PIC) of the primers ranged from 0.34 to 0.84 with a mean value of 0.62. The major allele frequency and heterozygosity ranged from 0.21 to 0.75 and from 0.43 to 0.89, respectively. Maximum major allele frequency was reported with primer Cs- Female-4, whereas the maximum value of polymorphic information content was found with the primer SSR11742. The dendrogram clustered genotypes into two main groups A and B with 8 and 6 genotypes, respectively. Jaccard’s similarity coefficient ranged from 0.63 to 0.86 with maximum similarity between genotypes DDPCG3 and PLP-1, whereas minimum similarity was observed between DDPCG8 and PLP Gy-1-08B. The population structure revealed three sub-populations with some admixtures. Principal coordinate analysis (PCoA) with SSR markers revealed that the genotypes were uniformly distributed across the two axes in both the plots with 41.76% of cumulative variation. The genetic divergence within indigenous genotypes allow genotypic identification, gene mapping and cloning for improvement in cucumber breeding.","PeriodicalId":36766,"journal":{"name":"Journal of Horticultural Sciences","volume":"37 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90231192","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}
Lakshamipathy, J. D. Adiga, D. Kalaivanan, H. P. Bhagya, V. Thondaiman, Babli Mog, G. N. Manjesh, G. Veena, M. Iqbal Shamsudheen, K. Vanitha, K. Manjunatha
Cashew (Anacardium occidentale L.) is an important tropical nut crop of social and economic importance worldwide. However, the crop is threatened with the low yield. In the present study, an attempt was made to test the effects of plant growth hormones as well as micronutrients on nut and apple quality of cashew var. Bhaskara. Significant differences in kernel weight, shelling percentage, carbohydrates and starch content of cashew kernel and juice content of cashew apple were observed with the foliar application of growth hormones and micronutrients. The foliar application of ethrel @ 50 ppm increased shelling percentage (35.8%), carbohydrate content (21.63%), sugar content (6.26%), protein content (32.4%), starch content (31.42%), juice content (78.3%) and total soluble solids (120 Brix). Further, the foliar spray of zinc sulphate (0.5%) + borax (0.1%) increased shelling (36.13%), protein content (32.15%), starch content (32.03%) among all the treatments tested. Furthermore, higher cashew apple juice content (78%) and total soluble solids (120Brix) was also recorded with the foliar spray of zinc sulphate (0.5%) + borax (0.1%).
{"title":"Effect of growth regulators and micronutrients on quality parameters in cashew (Anacardium occidentale L.)","authors":"Lakshamipathy, J. D. Adiga, D. Kalaivanan, H. P. Bhagya, V. Thondaiman, Babli Mog, G. N. Manjesh, G. Veena, M. Iqbal Shamsudheen, K. Vanitha, K. Manjunatha","doi":"10.24154/jhs.v18i1.2152","DOIUrl":"https://doi.org/10.24154/jhs.v18i1.2152","url":null,"abstract":"Cashew (Anacardium occidentale L.) is an important tropical nut crop of social and economic importance worldwide. However, the crop is threatened with the low yield. In the present study, an attempt was made to test the effects of plant growth hormones as well as micronutrients on nut and apple quality of cashew var. Bhaskara. Significant differences in kernel weight, shelling percentage, carbohydrates and starch content of cashew kernel and juice content of cashew apple were observed with the foliar application of growth hormones and micronutrients. The foliar application of ethrel @ 50 ppm increased shelling percentage (35.8%), carbohydrate content (21.63%), sugar content (6.26%), protein content (32.4%), starch content (31.42%), juice content (78.3%) and total soluble solids (120 Brix). Further, the foliar spray of zinc sulphate (0.5%) + borax (0.1%) increased shelling (36.13%), protein content (32.15%), starch content (32.03%) among all the treatments tested. Furthermore, higher cashew apple juice content (78%) and total soluble solids (120Brix) was also recorded with the foliar spray of zinc sulphate (0.5%) + borax (0.1%).","PeriodicalId":36766,"journal":{"name":"Journal of Horticultural Sciences","volume":"28 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87202308","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}
A. Anand, D. Rao, C. Narayana, M. R. Kurian, K. Ranjitha, K. S. Shivashankara
Mango fruits majorly suffers from anthracnose and fruit fly infestations during storage, transportation and marketing. Hot water treatments (HWTs) at specific levels have shown to control the incidence of these important threats. Application of HWT not only act as a quarantine measure, but also maintains the quality and enhance the marketability of fruits, even at room temperature (RT), leading to its vast applicability in local / international markets. In this study, post harvest application of HWTs (48°C for 60 min and 55°C for 10 min) in mango cv. Banganapalli recorded reduced ethylene production rate, physiological loss in weight, improved sugar content, ascorbic acid, total carotenoids, phenolics and antioxidants compared to control. Combination of HWTs (48°C for 60 min followed by 55°C for 10 min) resulted in degradation of some quality parameters compared to individual HWT and control.
{"title":"Effect of hot water treatments on physiological and biochemical changes in mango cv. Banganapalli during storage at ambient temperature","authors":"A. Anand, D. Rao, C. Narayana, M. R. Kurian, K. Ranjitha, K. S. Shivashankara","doi":"10.24154/jhs.v18i1.2162","DOIUrl":"https://doi.org/10.24154/jhs.v18i1.2162","url":null,"abstract":"Mango fruits majorly suffers from anthracnose and fruit fly infestations during storage, transportation and marketing. Hot water treatments (HWTs) at specific levels have shown to control the incidence of these important threats. Application of HWT not only act as a quarantine measure, but also maintains the quality and enhance the marketability of fruits, even at room temperature (RT), leading to its vast applicability in local / international markets. In this study, post harvest application of HWTs (48°C for 60 min and 55°C for 10 min) in mango cv. Banganapalli recorded reduced ethylene production rate, physiological loss in weight, improved sugar content, ascorbic acid, total carotenoids, phenolics and antioxidants compared to control. Combination of HWTs (48°C for 60 min followed by 55°C for 10 min) resulted in degradation of some quality parameters compared to individual HWT and control.","PeriodicalId":36766,"journal":{"name":"Journal of Horticultural Sciences","volume":"29 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82945930","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}
P. K. Nimbolkar, M. R. Kurian, K. Upreti, R. Laxman, K. S. Shivashankara, L. R. Varalakshmi
Mango genotypes that are salinity tolerant can possibly be used as clonal rootstock for sustained production of salinity sensitive commercial mango cultivars in salt affected soils. Present study was carried out to elucidate the effect of salinity stress induced by salts of NaCl+CaCl2 (1:1) at concentrations of 0, 25, 50 and 100 mM on fifteen polyembryonic mango genotypes. The physio-biochemical parameters such as relative water content, chlorophyll content, epicuticular wax content, water potential (Ψ), carbohydrate content, lipid peroxidation, proline accumulation and antioxidant enzymes were determined at each level of salinity in all genotypes. On the basis of these physio-biochemical changes, the study illustrated that the polyembryonic genotypes, Turpentine, Deorakhio, Olour, Bappakkai, Vattam, Nekkare, Kurukkan, Kensington, Muvandan, EC-95862, Manipur, Sabre, Vellaikolamban, Kitchener and Mylepelian were in the decreasing order in response to salinity stress tolerance.
耐盐芒果基因型可以作为耐盐芒果商业品种在盐害土壤中持续生产的无性系砧木。研究了0、25、50和100 mM NaCl+CaCl2(1:1)盐胁迫对15个多胚芒果基因型的影响。测定各基因型在不同盐度水平下的相对含水量、叶绿素含量、表皮蜡含量、水势(Ψ)、碳水化合物含量、脂质过氧化、脯氨酸积累和抗氧化酶等生理生化参数。在这些生理生化变化的基础上，研究表明，多胚基因型(Turpentine、Deorakhio、Olour、Bappakkai、Vattam、Nekkare、Kurukkan、Kensington、Muvandan、EC-95862、Manipur、Sabre、Vellaikolamban、Kitchener和Mylepelian)对盐胁迫的响应程度依次递减。
{"title":"Physio-biochemical responses of polyembryonic mango (Mangifera indica L.) genotypes to varying levels of salinity stress","authors":"P. K. Nimbolkar, M. R. Kurian, K. Upreti, R. Laxman, K. S. Shivashankara, L. R. Varalakshmi","doi":"10.24154/jhs.v18i1.2158","DOIUrl":"https://doi.org/10.24154/jhs.v18i1.2158","url":null,"abstract":"Mango genotypes that are salinity tolerant can possibly be used as clonal rootstock for sustained production of salinity sensitive commercial mango cultivars in salt affected soils. Present study was carried out to elucidate the effect of salinity stress induced by salts of NaCl+CaCl2 (1:1) at concentrations of 0, 25, 50 and 100 mM on fifteen polyembryonic mango genotypes. The physio-biochemical parameters such as relative water content, chlorophyll content, epicuticular wax content, water potential (Ψ), carbohydrate content, lipid peroxidation, proline accumulation and antioxidant enzymes were determined at each level of salinity in all genotypes. On the basis of these physio-biochemical changes, the study illustrated that the polyembryonic genotypes, Turpentine, Deorakhio, Olour, Bappakkai, Vattam, Nekkare, Kurukkan, Kensington, Muvandan, EC-95862, Manipur, Sabre, Vellaikolamban, Kitchener and Mylepelian were in the decreasing order in response to salinity stress tolerance.","PeriodicalId":36766,"journal":{"name":"Journal of Horticultural Sciences","volume":"1 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89315653","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}
M. Dhananjaya, G. S. Sandeep kumar, B. Mahesha, B. Varalakshmi
Investigations were carried out to identify the source of resistance in 67 bottle gourd genotypes for gummy stem blight, powdery mildew and cucumber green mottle mosaic virus (CGMMV) diseases, under natural field epiphytotic conditions. The genotypes BG-95 (105.13), BG-114-1 (131.04), BG-114-3 (208.81) and BG-77-6-1 (221.80) were resistant for gummy stem blight with low AUDPC values, while, BG-125-5 (232.22), BG-6-3 found (250.00), BG-125-4 (307.78), BG-8-1 (308.89), BG-125-2 (311.11) and BG-124-2 (423.33) resistant with low AUDPC values for powdery mildew. Further, the two genotypes such as IIHR-19 and BG- 131 showed field level resistance against CGMMV. The selected genotypes based on field evaluation were subjected for artificial screening under glass house conditions. The genotypes, recorded consistent resistant reactions were BG-114-3, BG-77-6-1 and BG-95 for gummy stem blight disease and BG-6-3, BG-8-1, BG-125-4 and BG-125-2 for powdery mildew. The stable and durable source of resistance identified for gummy stem blight and powdery mildew in bottle gourd genotypes will hasten the process of developing resistance varieties in bottle gourd.
{"title":"Screening for resistance to gummy stem blight, powdery mildew and cucumber green mottle mosaic virus in bottle gourd [Lagenaria siceraria (Mol.) Standl.]","authors":"M. Dhananjaya, G. S. Sandeep kumar, B. Mahesha, B. Varalakshmi","doi":"10.24154/jhs.v18i1.2166","DOIUrl":"https://doi.org/10.24154/jhs.v18i1.2166","url":null,"abstract":"Investigations were carried out to identify the source of resistance in 67 bottle gourd genotypes for gummy stem blight, powdery mildew and cucumber green mottle mosaic virus (CGMMV) diseases, under natural field epiphytotic conditions. The genotypes BG-95 (105.13), BG-114-1 (131.04), BG-114-3 (208.81) and BG-77-6-1 (221.80) were resistant for gummy stem blight with low AUDPC values, while, BG-125-5 (232.22), BG-6-3 found (250.00), BG-125-4 (307.78), BG-8-1 (308.89), BG-125-2 (311.11) and BG-124-2 (423.33) resistant with low AUDPC values for powdery mildew. Further, the two genotypes such as IIHR-19 and BG- 131 showed field level resistance against CGMMV. The selected genotypes based on field evaluation were subjected for artificial screening under glass house conditions. The genotypes, recorded consistent resistant reactions were BG-114-3, BG-77-6-1 and BG-95 for gummy stem blight disease and BG-6-3, BG-8-1, BG-125-4 and BG-125-2 for powdery mildew. The stable and durable source of resistance identified for gummy stem blight and powdery mildew in bottle gourd genotypes will hasten the process of developing resistance varieties in bottle gourd.","PeriodicalId":36766,"journal":{"name":"Journal of Horticultural Sciences","volume":"325 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76304754","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}
The investigation was carried out to assess the effect of post-harvest dipping of minimally processed fresh cut lettuce with various concentrations (10, 100 and 1000 μmolL-1) of melatonin on shelf-life and sensory quality of lettuce stored at 6±2ºC for 8 days. Melatonin treatment was found effective in maintaining freshness and sensory quality of lettuce during storage. Browning was reduced by 45% and visual quality index increased by 44.10% compared to control in 100 μmol L-1 melatonin treated samples on the 6th day of storage. Maximum total chlorophyll, total phenol and total antioxidants and least activity of browning related enzyme i.e., peroxidase (POD) was observed in 100 μmol L-1 melatonin treated samples during storage. No significant variation was observed between 10 μmol L-1 melatonin treated and control samples. Browning index value had significant negative correlation with total chlorophyll, total phenol and total antioxidants whereas POD activity had significant positive correlation. It can be inferred from the present investigation that post-harvest treatment of 100 μmol L-1 melatonin extended shelf-life of minimally processed lettuce for 6 days by preserving phenols, chlorophyll, antioxidants and inhibiting POD activity.
{"title":"Post-harvest melatonin application reduced browning in minimally processed lettuce (Lactuca sativa L.) during low temperature storage","authors":"P. Gurjar, S. Singh, A. Verma, M. Mishra","doi":"10.24154/jhs.v18i1.2163","DOIUrl":"https://doi.org/10.24154/jhs.v18i1.2163","url":null,"abstract":"The investigation was carried out to assess the effect of post-harvest dipping of minimally processed fresh cut lettuce with various concentrations (10, 100 and 1000 μmolL-1) of melatonin on shelf-life and sensory quality of lettuce stored at 6±2ºC for 8 days. Melatonin treatment was found effective in maintaining freshness and sensory quality of lettuce during storage. Browning was reduced by 45% and visual quality index increased by 44.10% compared to control in 100 μmol L-1 melatonin treated samples on the 6th day of storage. Maximum total chlorophyll, total phenol and total antioxidants and least activity of browning related enzyme i.e., peroxidase (POD) was observed in 100 μmol L-1 melatonin treated samples during storage. No significant variation was observed between 10 μmol L-1 melatonin treated and control samples. Browning index value had significant negative correlation with total chlorophyll, total phenol and total antioxidants whereas POD activity had significant positive correlation. It can be inferred from the present investigation that post-harvest treatment of 100 μmol L-1 melatonin extended shelf-life of minimally processed lettuce for 6 days by preserving phenols, chlorophyll, antioxidants and inhibiting POD activity.","PeriodicalId":36766,"journal":{"name":"Journal of Horticultural Sciences","volume":"37 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73989686","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}
Production of potted plants is influenced by factors viz., type of container, potting medium, nutrient dose. A study was conducted to standardize these factors for potted French marigold var. Arka Pari. The treatments comprised of two type of containers (plastic and coir), three potting media [red soil + FYM + sand (1:1:1 v/v), Arka fermented cocopeat (AFC), AFC + vermicompost (1:1 v/v)] and four nutrition concentrations (160:30:180 ppm N:P: K, 128:24:144 ppm N:P: K, 96:18:108 ppm N:P:K and 3% Jeevamrutha) laid out in factorial completely randomized design replicated thrice. Plants grown in potting media combination of Arka fermented cocopeat (AFC) + vermicompost (1:1 v/v) along with weekly application of nutrient solution (128:24:144 ppm NPK) produced maximum number of flowers plant-1 (147.61) and registered highest uptake of nitrogen (2.87 g plant-1), phosphorus (0.53 g plant-1), potassium (3.24 g plant-1), magnesium (0.85 g plant-1) and sulphur (0.21 g plant-1). Based on the attributes of the potted plants, this treatment combination also registered the highest score (81.2 on a scale of 100), willingness of the consumers to purchase (4.5 on a scale of 5), overall acceptability (2.7 on a scale of 3) and the benefit cost ratio of 1.18.
盆栽植物的生产受容器类型、盆栽介质、营养剂量等因素的影响。对盆栽法国万寿菊进行了这些因素的标准化研究。2种容器(塑料容器和椰壳容器)、3种盆栽介质[红壤+ FYM +沙子(1:1:1 v/v)、Arka发酵鸡粪(AFC)、AFC +蚯蚓堆肥(1:1 v/v)]和4种营养浓度(160:30:180 ppm N:P:K、128:24:144 ppm N:P:K、96:18:108 ppm N:P:K和3% Jeevamrutha)，采用三次全因子随机设计。在Arka发酵椰果(AFC) +蚯蚓堆肥(1:1 v/v)的盆栽培养基中生长的植株，每周施用营养液(128:24:44 ppm NPK)，植株开花数量最多(147.61)，氮素(2.87 g plant-1)、磷(0.53 g plant-1)、钾(3.24 g plant-1)、镁(0.85 g plant-1)和硫(0.21 g plant-1)的吸收量最高。根据盆栽植物的属性，该处理组合也获得了最高的得分(81.2分，满分为100分)，消费者的购买意愿(4.5分，满分为5分)，总体可接受性(2.7分，满分为3分)和效益成本比1.18。
{"title":"Influence of container, potting media and nutrients on production and post-production consumer acceptance of potted marigold (Tagetes patula L.)","authors":"S. Nair, G. Smitha, D. Kalaivanan","doi":"10.24154/jhs.v18i1.2153","DOIUrl":"https://doi.org/10.24154/jhs.v18i1.2153","url":null,"abstract":"Production of potted plants is influenced by factors viz., type of container, potting medium, nutrient dose. A study was conducted to standardize these factors for potted French marigold var. Arka Pari. The treatments comprised of two type of containers (plastic and coir), three potting media [red soil + FYM + sand (1:1:1 v/v), Arka fermented cocopeat (AFC), AFC + vermicompost (1:1 v/v)] and four nutrition concentrations (160:30:180 ppm N:P: K, 128:24:144 ppm N:P: K, 96:18:108 ppm N:P:K and 3% Jeevamrutha) laid out in factorial completely randomized design replicated thrice. Plants grown in potting media combination of Arka fermented cocopeat (AFC) + vermicompost (1:1 v/v) along with weekly application of nutrient solution (128:24:144 ppm NPK) produced maximum number of flowers plant-1 (147.61) and registered highest uptake of nitrogen (2.87 g plant-1), phosphorus (0.53 g plant-1), potassium (3.24 g plant-1), magnesium (0.85 g plant-1) and sulphur (0.21 g plant-1). Based on the attributes of the potted plants, this treatment combination also registered the highest score (81.2 on a scale of 100), willingness of the consumers to purchase (4.5 on a scale of 5), overall acceptability (2.7 on a scale of 3) and the benefit cost ratio of 1.18.","PeriodicalId":36766,"journal":{"name":"Journal of Horticultural Sciences","volume":"83 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83822265","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}
Vegetable cultivation plays a vital role in the agricultural economy of India. Agriculture is the main occupation of the people of Himachal Pradesh. Vegetable cultivation is facing challenges in profitability and economical use of resources. But a limited research has been done on resource use efficiency and elasticity of production in tomato, cauliflower and peas which are the major vegetable crops grown in Kullu. The present study was carried out in Kullu valley in the year 2019-2020 and multi-stage random sampling technique was used to select sixty farmers from different panchayats and villages on the basis of area they had under these crops. The elasticity of inputs used in the production of vegetables was worked out by fitting Cobb-Douglas production function. The sum of elasticity coefficients in case of tomato (Σbi = 1.22), cauliflower (Σbi = 1.56) and pea (Σbi = 1.31) were greater than unity which is statistically significant and shows increasing returns to scale. The ratio of marginal value product (MVP) to marginal factor cost (MFC) represented by value of r, was greater than unity in tomato for plant protection (8.38) and labour (1.05) which indicated their under-utilization. Value of plant protection (0.30) on the other hand was less than unity in cauliflower, which shows its over-utilization. In case of peas, values for fertilizer (-1.09), seed (-2.44) and FYM (0.87) showed these were over utilized. It is suggested that the farmers should be trained for judicious use of resources.
{"title":"Production function analysis for vegetable cultivation in Kullu valley of Himachal Pradesh: Application of Cobb-Douglas production model","authors":"Ishita Mandla, M. Vaidya","doi":"10.24154/jhs.v18i1.2168","DOIUrl":"https://doi.org/10.24154/jhs.v18i1.2168","url":null,"abstract":"Vegetable cultivation plays a vital role in the agricultural economy of India. Agriculture is the main occupation of the people of Himachal Pradesh. Vegetable cultivation is facing challenges in profitability and economical use of resources. But a limited research has been done on resource use efficiency and elasticity of production in tomato, cauliflower and peas which are the major vegetable crops grown in Kullu. The present study was carried out in Kullu valley in the year 2019-2020 and multi-stage random sampling technique was used to select sixty farmers from different panchayats and villages on the basis of area they had under these crops. The elasticity of inputs used in the production of vegetables was worked out by fitting Cobb-Douglas production function. The sum of elasticity coefficients in case of tomato (Σbi = 1.22), cauliflower (Σbi = 1.56) and pea (Σbi = 1.31) were greater than unity which is statistically significant and shows increasing returns to scale. The ratio of marginal value product (MVP) to marginal factor cost (MFC) represented by value of r, was greater than unity in tomato for plant protection (8.38) and labour (1.05) which indicated their under-utilization. Value of plant protection (0.30) on the other hand was less than unity in cauliflower, which shows its over-utilization. In case of peas, values for fertilizer (-1.09), seed (-2.44) and FYM (0.87) showed these were over utilized. It is suggested that the farmers should be trained for judicious use of resources.","PeriodicalId":36766,"journal":{"name":"Journal of Horticultural Sciences","volume":"85 1","pages":""},"PeriodicalIF":0.1,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84064453","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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