Thirty-eight jackfruit genotypes including check varieties ‘Muttom Varikka’ and ‘Sindhoor’ selected from homesteads of farmers across Kerala, were characterized for their dessert quality. Results revealed that the TSS and total sugar contents of AH-32, AH-18, AH-33 and AH-36 were 32, 25.5, 25.9 and 29.7 °Brix, whereas, the total sugars were 34.75, 25.92, 21.9 and 25%, respectively. Among the accessions, AH-2 recorded the highest total carotenoids (3131.88 μg 100g-1), which, was higher than check varieties ‘Muttom Varikka’ and ‘Sindhoor’. The genotypes viz., AH-18, AH-32, AH-33 and AH-36 can be considered ideal for dessert purpose and can also be used for development of value added products. However, the promising ones can be utilized in breeding programmes to improve quality and yield.
{"title":"Physico-morphological and biochemical characteristics of jackfruit (Artocarpus heterophyllus Lam.) genotypes","authors":"S. Gomez, K. Sebastian, P. K. Maneesha, M. Joseph","doi":"10.24154/8nt5ph42","DOIUrl":"https://doi.org/10.24154/8nt5ph42","url":null,"abstract":"Thirty-eight jackfruit genotypes including check varieties ‘Muttom Varikka’ and ‘Sindhoor’ selected from homesteads of farmers across Kerala, were characterized for their dessert quality. Results revealed that the TSS and total sugar contents of AH-32, AH-18, AH-33 and AH-36 were 32, 25.5, 25.9 and 29.7 °Brix, whereas, the total sugars were 34.75, 25.92, 21.9 and 25%, respectively. Among the accessions, AH-2 recorded the highest total carotenoids (3131.88 μg 100g-1), which, was higher than check varieties ‘Muttom Varikka’ and ‘Sindhoor’. The genotypes viz., AH-18, AH-32, AH-33 and AH-36 can be considered ideal for dessert purpose and can also be used for development of value added products. However, the promising ones can be utilized in breeding programmes to improve quality and yield.","PeriodicalId":36766,"journal":{"name":"Journal of Horticultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141362343","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}
V. Kamble, C. K. Narayana, G. Karunakaran, D. S. Sudhakar Rao, R. H. Laxman, S. Sriram
The present study was carried out to determine the effect of different storage temperatures (5oC, 9oC, 12oC and room temperature (26-32oC) on biochemical and antioxidant properties of two avocado accessions (CHES-HA-I/I and CHES-HA-VII/I). The result showed that titratable acidity, total soluble solids, and protein content decreased, while, fat content increased with the advancement of storage. The higher antioxidant activity was recorded in fruits stored at 9oC in both the accessions. At 5oC, fruits exhibited signs of chilling injury and lower antioxidant activity. Significantly higher phenolic content was found in fruits stored at room temperature. It was observed that both antioxidants and total phenolic content of avocado fruits increased irrespective of storage temperatures. It is, therefore, concluded that unlike other tropical fruits, as the ripening progressed, avocado fruits exhibited major change in biochemical and antioxidant activity.
{"title":"Temperature induced biochemical changes and antioxidant activity in mature avocado (persea americana Mill.) fruit during storage","authors":"V. Kamble, C. K. Narayana, G. Karunakaran, D. S. Sudhakar Rao, R. H. Laxman, S. Sriram","doi":"10.24154/jhs.v19i1.2257","DOIUrl":"https://doi.org/10.24154/jhs.v19i1.2257","url":null,"abstract":"The present study was carried out to determine the effect of different storage temperatures (5oC, 9oC, 12oC and room temperature (26-32oC) on biochemical and antioxidant properties of two avocado accessions (CHES-HA-I/I and CHES-HA-VII/I). The result showed that titratable acidity, total soluble solids, and protein content decreased, while, fat content increased with the advancement of storage. The higher antioxidant activity was recorded in fruits stored at 9oC in both the accessions. At 5oC, fruits exhibited signs of chilling injury and lower antioxidant activity. Significantly higher phenolic content was found in fruits stored at room temperature. It was observed that both antioxidants and total phenolic content of avocado fruits increased irrespective of storage temperatures. It is, therefore, concluded that unlike other tropical fruits, as the ripening progressed, avocado fruits exhibited major change in biochemical and antioxidant activity.","PeriodicalId":36766,"journal":{"name":"Journal of Horticultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141361197","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}
S. Vishnupandi, M. Ganga, K. Rajamani, S. Manonmani, N. Manikanda Boopathi
The aim of the research was to create genetic variations in Jasminum sambac using oryzalin as a polyploidizing agent. Rooted stem cuttings of J. sambac were treated with oryzalin (0.005, 0.01 and 0.05%) and their vegetative and flowering parameters were recorded on 150 days after treatment. The study revealed that the higher concentration of oryzalin (0.05%) caused reduction in plant height, internodal length, number of flowering cymes per plant and number of flower buds per cyme. However, the same treatment significantly enhanced certain vegetative parameters viz., number of secondary branches, stem girth, number of leaves and leaf area, and flowering parameters namely flower bud length, corolla tube length, flower bud girth, diameter of open flower and hundred flower bud weight. High GCV was recorded in major yield attributing traits, i.e. number of flowering cymes per plant and hundred flower bud weight. High heritability and genetic advance registered for the traits viz., plant height, number of secondary branches, internodal length, number of flowering cymes, flower bud girth and hundred flower bud weight per plant indicates least influence by environment and selection such characters may be useful.
{"title":"Evaluation of oryzalin-induced putative polyploids of Jasminum sambac cv. Ramanathapuram Gundumalli","authors":"S. Vishnupandi, M. Ganga, K. Rajamani, S. Manonmani, N. Manikanda Boopathi","doi":"10.24154/fsmgbb47","DOIUrl":"https://doi.org/10.24154/fsmgbb47","url":null,"abstract":"The aim of the research was to create genetic variations in Jasminum sambac using oryzalin as a polyploidizing agent. Rooted stem cuttings of J. sambac were treated with oryzalin (0.005, 0.01 and 0.05%) and their vegetative and flowering parameters were recorded on 150 days after treatment. The study revealed that the higher concentration of oryzalin (0.05%) caused reduction in plant height, internodal length, number of flowering cymes per plant and number of flower buds per cyme. However, the same treatment significantly enhanced certain vegetative parameters viz., number of secondary branches, stem girth, number of leaves and leaf area, and flowering parameters namely flower bud length, corolla tube length, flower bud girth, diameter of open flower and hundred flower bud weight. High GCV was recorded in major yield attributing traits, i.e. number of flowering cymes per plant and hundred flower bud weight. High heritability and genetic advance registered for the traits viz., plant height, number of secondary branches, internodal length, number of flowering cymes, flower bud girth and hundred flower bud weight per plant indicates least influence by environment and selection such characters may be useful.","PeriodicalId":36766,"journal":{"name":"Journal of Horticultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141366435","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}
Jamun (Syzygium cumini Skeels) is a vital fruit crop for arid regions. An investigation was conducted to assess the propagation success of four jamun varieties (CISH-42, CISH-37, Konkan Bahadoli and Goma Priyanka) in the south western region of Punjab. Data were collected on grafting success, graft survival, sprout initiation, number of sprouts and leaves per graft, graft height, and chlorophyll index. The results revealed that the variety Konkan Bahadoli recorded highest graft success (83.7%, 82.8%) and survival rates (76.6%, 73.9%) during both the years, followed by Goma Priyanka. The var. Konkan Bahadoli recorded earliest sprouting (16.6 days, 15.3 days, respectively in both years) and superior growth parameters, including the number of sprouts and leaves, graft height, and chlorophyll index. Overall, the var. Konkan Bahadoli responded best to grafting performed in March under south-western region of Punjab.
{"title":"Effect of grafting on success and survivability of jamun (Syzygium cumini Skeels.) varieties","authors":"A. Kumar, S. Chander","doi":"10.24154/aqa0d103","DOIUrl":"https://doi.org/10.24154/aqa0d103","url":null,"abstract":"Jamun (Syzygium cumini Skeels) is a vital fruit crop for arid regions. An investigation was conducted to assess the propagation success of four jamun varieties (CISH-42, CISH-37, Konkan Bahadoli and Goma Priyanka) in the south western region of Punjab. Data were collected on grafting success, graft survival, sprout initiation, number of sprouts and leaves per graft, graft height, and chlorophyll index. The results revealed that the variety Konkan Bahadoli recorded highest graft success (83.7%, 82.8%) and survival rates (76.6%, 73.9%) during both the years, followed by Goma Priyanka. The var. Konkan Bahadoli recorded earliest sprouting (16.6 days, 15.3 days, respectively in both years) and superior growth parameters, including the number of sprouts and leaves, graft height, and chlorophyll index. Overall, the var. Konkan Bahadoli responded best to grafting performed in March under south-western region of Punjab.","PeriodicalId":36766,"journal":{"name":"Journal of Horticultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141362832","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}
K. N. Kiran, A. Singh, S. K. Singh, O. P. Awasthi, P. Yadav, K. B. Sandeep
Induction of tetraploidy in citrus is commonly meant for the development of triploid seedless cultivars as well as resistance against abiotic and biotic stresses. Three-year-old, 20 second-generation colchicine treated (0.05, 0.10, 0.15 and 0.20%) plants (colchiploids), established from the putative tetraploid branches of the first generation colchiploids of sweet orange (Citrus sinensis (L.) Osbeck) cv. Mosambi vegetatively propagated on Jatti khatti rootstock, along with their wild (parent) type, were characterized based on morphological and physiological traits. Plant height and canopy volume were reduced, but stem girth, nodes per shoot and bark: wood increased in the majority of the second-generation colchiploids related to the wild type. Colchiploids also possessed improved flower characteristics in terms of length and width. The stomatal dimensions increased, but stomatal concentration reduced in all the colchiploids. Colchicine treatment also caused significant variations in leaf gas exchange parameters, including photosynthetic rate, intercellular CO2 concentration, leaf net transpiration rates, stomatal conductance, and intrinsic water use efficiency in colchiploids affecting their photosynthetic activities. The solid tetraploids identified on the basis of morpho-physiological characterization can be used in future breeding programmes for the development of triploid seedless citrus cultivars or can be used for the mitigation of biotic and abiotic stresses.
{"title":"Morpho-physiological characterization of second generation colchiploids in sweet orange (Citrus sinensis (L.) Osbeck) cv. Mosambi","authors":"K. N. Kiran, A. Singh, S. K. Singh, O. P. Awasthi, P. Yadav, K. B. Sandeep","doi":"10.24154/hsmhfr56","DOIUrl":"https://doi.org/10.24154/hsmhfr56","url":null,"abstract":"Induction of tetraploidy in citrus is commonly meant for the development of triploid seedless cultivars as well as resistance against abiotic and biotic stresses. Three-year-old, 20 second-generation colchicine treated (0.05, 0.10, 0.15 and 0.20%) plants (colchiploids), established from the putative tetraploid branches of the first generation colchiploids of sweet orange (Citrus sinensis (L.) Osbeck) cv. Mosambi vegetatively propagated on Jatti khatti rootstock, along with their wild (parent) type, were characterized based on morphological and physiological traits. Plant height and canopy volume were reduced, but stem girth, nodes per shoot and bark: wood increased in the majority of the second-generation colchiploids related to the wild type. Colchiploids also possessed improved flower characteristics in terms of length and width. The stomatal dimensions increased, but stomatal concentration reduced in all the colchiploids. Colchicine treatment also caused significant variations in leaf gas exchange parameters, including photosynthetic rate, intercellular CO2 concentration, leaf net transpiration rates, stomatal conductance, and intrinsic water use efficiency in colchiploids affecting their photosynthetic activities. The solid tetraploids identified on the basis of morpho-physiological characterization can be used in future breeding programmes for the development of triploid seedless citrus cultivars or can be used for the mitigation of biotic and abiotic stresses.","PeriodicalId":36766,"journal":{"name":"Journal of Horticultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141365518","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}
Under sub-tropical region, poor fruit set is a major constraint in semi-soft pears resulting in lower fruit yield. To study the effect of plant growth substances on fruit production and quality, the plants of pear cv. Punjab Beauty were sprayed with the plant growth substances viz., boric acid (200, 300 ppm), CPPU (5, 10 ppm), NAA (10, 20 ppm) and P-Ca (150, 300 ppm) at full bloom stage. Among all the applied treatments, boric acid @ 200 ppm proved to be most effective with maximum fruit set (6.91 %), fruit retention (59.9 %) and yield (57.8 kg/plant), while, maximum fruit weight (162.3 g) was observed with NAA (20 ppm). The highest internal fruit quality in terms of maximum TSS (12.4o Brix), TSS/acid ratio (53.4) and ascorbic acid (12.8 mg kg-1) was observed in 200 ppm boric acid. However, the total phenol (30.9 mg GAE/100 pulp) and flavonoid (36.1 mg CE/100 pulp) content was significantly higher with NAA (20 ppm). The plant growth substances reduced the polyphenol oxidase activity in fruits. Overall, the application of boric acid (200 ppm) resulted in improved fruit set, yield and quality in pear cv. Punjab Beauty.
{"title":"Influence of plant growth substances on reproductive growth, yield and fruit quality of pear (Pyrus communis L.) cv. Punjab Beauty","authors":"A. Paul, Nirmaljit Kaur, P. S. Gill, A. Sinha","doi":"10.24154/tt4a5133","DOIUrl":"https://doi.org/10.24154/tt4a5133","url":null,"abstract":"Under sub-tropical region, poor fruit set is a major constraint in semi-soft pears resulting in lower fruit yield. To study the effect of plant growth substances on fruit production and quality, the plants of pear cv. Punjab Beauty were sprayed with the plant growth substances viz., boric acid (200, 300 ppm), CPPU (5, 10 ppm), NAA (10, 20 ppm) and P-Ca (150, 300 ppm) at full bloom stage. Among all the applied treatments, boric acid @ 200 ppm proved to be most effective with maximum fruit set (6.91 %), fruit retention (59.9 %) and yield (57.8 kg/plant), while, maximum fruit weight (162.3 g) was observed with NAA (20 ppm). The highest internal fruit quality in terms of maximum TSS (12.4o Brix), TSS/acid ratio (53.4) and ascorbic acid (12.8 mg kg-1) was observed in 200 ppm boric acid. However, the total phenol (30.9 mg GAE/100 pulp) and flavonoid (36.1 mg CE/100 pulp) content was significantly higher with NAA (20 ppm). The plant growth substances reduced the polyphenol oxidase activity in fruits. Overall, the application of boric acid (200 ppm) resulted in improved fruit set, yield and quality in pear cv. Punjab Beauty.","PeriodicalId":36766,"journal":{"name":"Journal of Horticultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141365434","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}
Onion detopping is one of the unit operations involved in the cultivation of onion crop. Manual onion detopping is time consuming and highly drudgery. Therefore, an onion detopping machine was designed and developed for higher efficiency. An efficient detopping mechanism designed to achieve the maximum performance parameters in terms of detopping efficiency, per cent damage of onion bulbs and capacity of the onion detopping machine. By considering the crop parameters and functional requirement, four types of shearing designs of detopping tool namely, lead screw, square shaft with two cutting edges, square shaft with four cutting edges and helical roller were designed, developed and evaluated. Among four different shearing mechanisms, the helical roller type detopping tool was found to be effective in detopping the onion leaves. The helical roller type detopping tool had a detopping efficiency (98.44±1.07%), per cent damage (2.05±0.45%), conveying efficiency (97.60±1.02 %) and capacity (372.60±13.95 kg/h), respectively
{"title":"Design and development of a detopping mechanism for onion detopping machine","authors":"Carolin Rathinakumari, Senthil Kumaran","doi":"10.24154/jhs.v19i1.2189","DOIUrl":"https://doi.org/10.24154/jhs.v19i1.2189","url":null,"abstract":"Onion detopping is one of the unit operations involved in the cultivation of onion crop. Manual onion detopping is time consuming and highly drudgery. Therefore, an onion detopping machine was designed and developed for higher efficiency. An efficient detopping mechanism designed to achieve the maximum performance parameters in terms of detopping efficiency, per cent damage of onion bulbs and capacity of the onion detopping machine. By considering the crop parameters and functional requirement, four types of shearing designs of detopping tool namely, lead screw, square shaft with two cutting edges, square shaft with four cutting edges and helical roller were designed, developed and evaluated. Among four different shearing mechanisms, the helical roller type detopping tool was found to be effective in detopping the onion leaves. The helical roller type detopping tool had a detopping efficiency (98.44±1.07%), per cent damage (2.05±0.45%), conveying efficiency (97.60±1.02 %) and capacity (372.60±13.95 kg/h), respectively","PeriodicalId":36766,"journal":{"name":"Journal of Horticultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141365229","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}
G. Senthil Kumaran, A. Carolin Rathinakumari, S. A. Venu, A. R. Surendra
A study was conducted to analyse the energy use pattern for cultivation and on farm processing of rose onion (Allium cepa L.). The energy auditing data was collected by stratified random sampling method using a face- to-face interaction at Sadali (Hobli), Sidlaghatta, Chikkaballapur, Karnataka. In this region, the energy utilized for different package of practices followed for rose onion cultivation by conventional practice are land preparation (5-tyne cultivator, 9-tyne cultivator and rotovator), sowing (broadcasting), thinning (manual), manure & fertilizer application (manual), plant protection {weeding (manual and chemical spray), chemical spraying (battery operated sprayer)}, irrigation (micro-irrigation), harvesting (manual) and detopping (manual). The energy use pattern for the above-mentioned various package of practices were found to be 4,207.95±37.21, 664.66±17.68, 53.31±2.68, 22,522.92±385.07, 2,534.40±155.55, 14,980.51±229.49, 807.74±20.80 and 1,571.75±42.77 MJ ha-1, respectively. The input energy, output energy and energy ratio were calculated as 47,343.23±484.65, 38,131.12±462.48 MJ ha-1 and 0.81±0.01, respectively. The energy intensive operation identified was manure and fertilizer application (fertilizer 46.80%; men 0.77%) both indirect and direct energy sources, followed by irrigation (electricity 31.09%; men 0.55%), land preparation (diesel 8.33%) and pesticide application (pesticide 4.53%). It is concluded that the fertilizer, electricity and diesel utilised in rose onion cultivation needs to be optimally minimised through management practices.
{"title":"Energy use pattern in rose onion (Allium cepa L.) cultivation","authors":"G. Senthil Kumaran, A. Carolin Rathinakumari, S. A. Venu, A. R. Surendra","doi":"10.24154/rkjzh135","DOIUrl":"https://doi.org/10.24154/rkjzh135","url":null,"abstract":"A study was conducted to analyse the energy use pattern for cultivation and on farm processing of rose onion (Allium cepa L.). The energy auditing data was collected by stratified random sampling method using a face- to-face interaction at Sadali (Hobli), Sidlaghatta, Chikkaballapur, Karnataka. In this region, the energy utilized for different package of practices followed for rose onion cultivation by conventional practice are land preparation (5-tyne cultivator, 9-tyne cultivator and rotovator), sowing (broadcasting), thinning (manual), manure & fertilizer application (manual), plant protection {weeding (manual and chemical spray), chemical spraying (battery operated sprayer)}, irrigation (micro-irrigation), harvesting (manual) and detopping (manual). The energy use pattern for the above-mentioned various package of practices were found to be 4,207.95±37.21, 664.66±17.68, 53.31±2.68, 22,522.92±385.07, 2,534.40±155.55, 14,980.51±229.49, 807.74±20.80 and 1,571.75±42.77 MJ ha-1, respectively. The input energy, output energy and energy ratio were calculated as 47,343.23±484.65, 38,131.12±462.48 MJ ha-1 and 0.81±0.01, respectively. The energy intensive operation identified was manure and fertilizer application (fertilizer 46.80%; men 0.77%) both indirect and direct energy sources, followed by irrigation (electricity 31.09%; men 0.55%), land preparation (diesel 8.33%) and pesticide application (pesticide 4.53%). It is concluded that the fertilizer, electricity and diesel utilised in rose onion cultivation needs to be optimally minimised through management practices.","PeriodicalId":36766,"journal":{"name":"Journal of Horticultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141363035","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}
Tuberose is highly valuable for making floral ornaments, bouquets, artistic garlands, button holes and essential oil. The present study aimed to increase the shelf life of loose flowers by the exogenous application of endogenous plant metabolites i.e. polyamines-putrescine and spermidine at 15 and 20 mg each and with two controls (with/ without packaging). The polyamine-dipped tuberose florets were packed in polyethylene zip covers (56 microns thickness & 1% ventilation), and stored at room temperature (32±1oC and 65 ± 3% RH). Results revealed that putrescine (20 mg) and spermidine (20 mg) treated florets had reduced physiological loss in weight and spoilage percentage with delayed flower opening, and higher sensory acceptance when compared to other treatments and also extended vase life (4 days). The shelf life of untreated flowers without a package was just on the harvested day. Thus, the exogenous application of polyamines had a synergic effect on the shelf life of tuberose loose flowers and can be effectively utilized in the supply chain of tuberose.
{"title":"Endogenous plant metabolites influence on shelf-life extension of tuberose flowers","authors":"V. Allwin, K. Rama Krishna","doi":"10.24154/jhs.v19i1.1851","DOIUrl":"https://doi.org/10.24154/jhs.v19i1.1851","url":null,"abstract":"Tuberose is highly valuable for making floral ornaments, bouquets, artistic garlands, button holes and essential oil. The present study aimed to increase the shelf life of loose flowers by the exogenous application of endogenous plant metabolites i.e. polyamines-putrescine and spermidine at 15 and 20 mg each and with two controls (with/ without packaging). The polyamine-dipped tuberose florets were packed in polyethylene zip covers (56 microns thickness & 1% ventilation), and stored at room temperature (32±1oC and 65 ± 3% RH). Results revealed that putrescine (20 mg) and spermidine (20 mg) treated florets had reduced physiological loss in weight and spoilage percentage with delayed flower opening, and higher sensory acceptance when compared to other treatments and also extended vase life (4 days). The shelf life of untreated flowers without a package was just on the harvested day. Thus, the exogenous application of polyamines had a synergic effect on the shelf life of tuberose loose flowers and can be effectively utilized in the supply chain of tuberose.","PeriodicalId":36766,"journal":{"name":"Journal of Horticultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141364374","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}
K. Prasanth, D. C. Lakshmana Reddy, S. Sriram, R. Venugopalan, M. Pitchaimuthu, K. Hima Bindu, B. Varalakshmi
The inheritance of powdery mildew resistance in bitter gourd resistant line IIHR-144-1 was studied in cross with two susceptible lines Arka Harit and IIHR Sel-5-8. The segregation ratios in F2 and backcross progenies indicated that resistance is governed by dominant-recessive epistasis or dominant inhibitory epistasis, indicating the involvement of more than one pairs of genes, one dominant and one recessive for resistance along with other background minor genes in the resistant line IIHR-144-1. Bulk segregant analysis of F2 population of cross between IIHR-144-1 and Arka Harit using SSR markers identified McSSR 57 produced a polymorphic DNA fragment that co-segregated with disease reaction. Considering the cross compatibility between Momordica charantia L. and M. charantia var. muricata (IIHR-144-1) the resistance trait can be transferred to cultivated species through hybridization and selection.
通过与两个易感品系 Arka Harit 和 IIHR Sel-5-8 杂交，研究了苦瓜抗性品系 IIHR-144-1 对白粉病的抗性遗传。F2 后代和回交后代的分离比表明，抗性受显性-隐性外显或显性-抑制性外显的支配，这表明抗性品系 IIHR-144-1 中涉及多对基因，一对显性基因和一对隐性基因以及其他背景次要基因。利用 SSR 标记对 IIHR-144-1 与 Arka Harit 杂交的 F2 群体进行了大量分离分析，发现 McSSR 57 产生了一个多态性 DNA 片段，与疾病反应存在共分离。考虑到 Momordica charantia L. 与 M. charantia var. muricata（IIHR-144-1）之间的杂交相容性，抗性性状可通过杂交和选择转移到栽培品种上。
{"title":"Genetic analysis and identification of SSR marker linked topowdery mildew resistance in bitter gourd (Momordica charantia L.)","authors":"K. Prasanth, D. C. Lakshmana Reddy, S. Sriram, R. Venugopalan, M. Pitchaimuthu, K. Hima Bindu, B. Varalakshmi","doi":"10.24154/jhs.v19i1.2264","DOIUrl":"https://doi.org/10.24154/jhs.v19i1.2264","url":null,"abstract":"The inheritance of powdery mildew resistance in bitter gourd resistant line IIHR-144-1 was studied in cross with two susceptible lines Arka Harit and IIHR Sel-5-8. The segregation ratios in F2 and backcross progenies indicated that resistance is governed by dominant-recessive epistasis or dominant inhibitory epistasis, indicating the involvement of more than one pairs of genes, one dominant and one recessive for resistance along with other background minor genes in the resistant line IIHR-144-1. Bulk segregant analysis of F2 population of cross between IIHR-144-1 and Arka Harit using SSR markers identified McSSR 57 produced a polymorphic DNA fragment that co-segregated with disease reaction. Considering the cross compatibility between Momordica charantia L. and M. charantia var. muricata (IIHR-144-1) the resistance trait can be transferred to cultivated species through hybridization and selection.","PeriodicalId":36766,"journal":{"name":"Journal of Horticultural Sciences","volume":null,"pages":null},"PeriodicalIF":0.1,"publicationDate":"2024-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141376923","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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