Pub Date : 2023-12-30DOI: 10.58993/ijh/2023.80.4.15
Biswajit Karmakar, T.T. Nguyen, Surajit Mitra
This research aimed to determine an appropriate postharvest treatment that inhibited decay, maintainedquality, and prolonged the storage life of the ‘Cat Chu’ mango. The mangoes were subjected to hot water diptreatment at 53°C for 5 mins combined with natamycin (1000 ppm), fludioxonil (200 ppm), sodium benzoate(2%), natamycin alone and untreated control. Mangoes were stored at 8°C for 35 days and ripened at 20°C for5 days during the storage period. The results revealed that hot water treatment did not develop white-corkypulp in mango during storage at 8°C for 28 days. Hot water treatment in combination with dipping natamycinenhanced chilling tolerance and reduced decay of mango storage at 8°C for up to 28 days and ripening at 20°C.This combination treatment inhibited the rot of mango and was lower than fludioxonil fungicide during storage.Hence, hot water treatment in combination with natamycin stored at 8°C showed great potential to prolong thestorage life of Cat Chu mango by up to 28 days as a safe altern ative to chemical fungicides.
{"title":"Effect of postharvest treatments on quality and shelf life of mango fruit cv. ‘Cat Chu’ at suboptimal temperature","authors":"Biswajit Karmakar, T.T. Nguyen, Surajit Mitra","doi":"10.58993/ijh/2023.80.4.15","DOIUrl":"https://doi.org/10.58993/ijh/2023.80.4.15","url":null,"abstract":"This research aimed to determine an appropriate postharvest treatment that inhibited decay, maintainedquality, and prolonged the storage life of the ‘Cat Chu’ mango. The mangoes were subjected to hot water diptreatment at 53°C for 5 mins combined with natamycin (1000 ppm), fludioxonil (200 ppm), sodium benzoate(2%), natamycin alone and untreated control. Mangoes were stored at 8°C for 35 days and ripened at 20°C for5 days during the storage period. The results revealed that hot water treatment did not develop white-corkypulp in mango during storage at 8°C for 28 days. Hot water treatment in combination with dipping natamycinenhanced chilling tolerance and reduced decay of mango storage at 8°C for up to 28 days and ripening at 20°C.This combination treatment inhibited the rot of mango and was lower than fludioxonil fungicide during storage.Hence, hot water treatment in combination with natamycin stored at 8°C showed great potential to prolong thestorage life of Cat Chu mango by up to 28 days as a safe altern ative to chemical fungicides.","PeriodicalId":13449,"journal":{"name":"Indian Journal of Horticulture","volume":" 22","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139138230","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}
Pub Date : 2023-12-30DOI: 10.58993/ijh/2023.80.4.11
Bhoomika Hr, Manasa Ramanath Hegde, Maheswarappa Hp
A field experiment was conducted at Agricultural and Horticultural Research Station, Thirtahhalli, KSNUAHS, Shivamogga, Karnataka, India, where arecanut palms of eight cultivars were evaluated for growth and yield performance for two consecutive years. The above-ground carbon sequestration potential and the soil carbon sequestration potential were assessed. The cultivar SAS-1 performed superior over other cultivars for all the growth parameters under study viz., palm height (9.02 m), stem diameter (18.07 cm), number of leaves (9.84) and internodal distance (17.38cm). However highest yield of fruit bunch per palm was recorded in the cultivar Mohithnagar (20.28 kg), followed by Thirthalli local (17.92 kg), Sreemangala (17.46 kg) and Tarikere Local (15.31 kg). Maximum chali/ dried ripe nut yield was recorded in Thithalli local (3.29 kg), Mohithnagar (3.10 kg) and Sreemangala (2.80 kg). Significantly higher values for standing biomass (15.49 t/ha), carbon stock (7.75 t/ha) and carbon sequestration (28.43 t/ha) were recorded in cultivar SAS-1. Soil parameters viz., bulk density, soil organic carbon and carbon stock in soil was analyzed in the rhizosphere of respective cultivars and maximum soil organic carbon (13.10g/kg and 11.43g/kg at 0-30 & 30-60 cm depths respectively) and carbon stock (52.77 t/ha at 0-30 cm and 46.41 t/ha at 30-60 cm depth) were recorded in that of cultivar Sumangala.
{"title":"Productivity and Carbon Sequestration Potential of Arecanut Cultivars under Malnad Region of Karnataka","authors":"Bhoomika Hr, Manasa Ramanath Hegde, Maheswarappa Hp","doi":"10.58993/ijh/2023.80.4.11","DOIUrl":"https://doi.org/10.58993/ijh/2023.80.4.11","url":null,"abstract":"A field experiment was conducted at Agricultural and Horticultural Research Station, Thirtahhalli, KSNUAHS, Shivamogga, Karnataka, India, where arecanut palms of eight cultivars were evaluated for growth and yield performance for two consecutive years. The above-ground carbon sequestration potential and the soil carbon sequestration potential were assessed. The cultivar SAS-1 performed superior over other cultivars for all the growth parameters under study viz., palm height (9.02 m), stem diameter (18.07 cm), number of leaves (9.84) and internodal distance (17.38cm). However highest yield of fruit bunch per palm was recorded in the cultivar Mohithnagar (20.28 kg), followed by Thirthalli local (17.92 kg), Sreemangala (17.46 kg) and Tarikere Local (15.31 kg). Maximum chali/ dried ripe nut yield was recorded in Thithalli local (3.29 kg), Mohithnagar (3.10 kg) and Sreemangala (2.80 kg). Significantly higher values for standing biomass (15.49 t/ha), carbon stock (7.75 t/ha) and carbon sequestration (28.43 t/ha) were recorded in cultivar SAS-1. Soil parameters viz., bulk density, soil organic carbon and carbon stock in soil was analyzed in the rhizosphere of respective cultivars and maximum soil organic carbon (13.10g/kg and 11.43g/kg at 0-30 & 30-60 cm depths respectively) and carbon stock (52.77 t/ha at 0-30 cm and 46.41 t/ha at 30-60 cm depth) were recorded in that of cultivar Sumangala.","PeriodicalId":13449,"journal":{"name":"Indian Journal of Horticulture","volume":" 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139141633","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}
Pub Date : 2023-12-30DOI: 10.58993/ijh/2023.80.4.5
V. C, SAPNA PANWAR, KANWAR PAL SINGH, NAMITA BANYAL, LEKSHMY S, NIHARIKA MALLICK
Local strain of Tagetes patula L. was used for in vitro androgenesis with floret size ranging from 2 to 4.5 mm. One haploid from anther derived regenerants was isolated and confirmed by cytological analysis and chloroplast counting. The isolated haploid was further multiplied and were subjected to colchicine treatment (0.005%, 0.01%, 0.02% for 36 and 48 hours) using nodal segment explants under in vitro conditions. The results revealed that treatment T1- Colchicine (0.005%) for 36 hours exposure was found good for parameters like percent survival (81.22%), percent diploidization (48.00%), leaf length (3.77 cm), leaf width (2.49 cm), number of shoots per plant (9.89) followed by treatment T2- Colchicine (0.005%) for 48 hours exposure for parameters like percent survival (69.67%), percent diploidization (37.22%), leaf length (3.56 cm), leaf width (1.97 cm), number of shoots per plant (8.67). Cytological analysis and chloroplast counting in stomatal guard cells was done for determination of ploidy level in colchicine treated haploid plantlets. The results revealed that in cytological analysis out of 38 plants screened, 26 plants (68.4%) were tetraploids and 12 plants (31.57%) were polyploids. Whereas through chloroplast counting, 38 plants screened out of which 26 plants (68.4%) were tetraploids with mean of 16 chloroplasts in the guard cells and 12 plants (31.57%) were polyploids with mean of 18 to 22 chloroplasts in the guard cells.
{"title":"Studies on in vitro chromosome doubling of haploid derived through androgenesis in marigold (Tagetes patula L.)","authors":"V. C, SAPNA PANWAR, KANWAR PAL SINGH, NAMITA BANYAL, LEKSHMY S, NIHARIKA MALLICK","doi":"10.58993/ijh/2023.80.4.5","DOIUrl":"https://doi.org/10.58993/ijh/2023.80.4.5","url":null,"abstract":"Local strain of Tagetes patula L. was used for in vitro androgenesis with floret size ranging from 2 to 4.5 mm. One haploid from anther derived regenerants was isolated and confirmed by cytological analysis and chloroplast counting. The isolated haploid was further multiplied and were subjected to colchicine treatment (0.005%, 0.01%, 0.02% for 36 and 48 hours) using nodal segment explants under in vitro conditions. The results revealed that treatment T1- Colchicine (0.005%) for 36 hours exposure was found good for parameters like percent survival (81.22%), percent diploidization (48.00%), leaf length (3.77 cm), leaf width (2.49 cm), number of shoots per plant (9.89) followed by treatment T2- Colchicine (0.005%) for 48 hours exposure for parameters like percent survival (69.67%), percent diploidization (37.22%), leaf length (3.56 cm), leaf width (1.97 cm), number of shoots per plant (8.67). Cytological analysis and chloroplast counting in stomatal guard cells was done for determination of ploidy level in colchicine treated haploid plantlets. The results revealed that in cytological analysis out of 38 plants screened, 26 plants (68.4%) were tetraploids and 12 plants (31.57%) were polyploids. Whereas through chloroplast counting, 38 plants screened out of which 26 plants (68.4%) were tetraploids with mean of 16 chloroplasts in the guard cells and 12 plants (31.57%) were polyploids with mean of 18 to 22 chloroplasts in the guard cells.","PeriodicalId":13449,"journal":{"name":"Indian Journal of Horticulture","volume":" 47","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139137476","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}
Pub Date : 2023-12-30DOI: 10.58993/ijh/2023.80.4.8
P. Khapte, M. K, Naresh Ponnam, B. M, G. C. Wakchaure, Gurumurthy S
Chilli is a significant vegetable cum spice crop having broader applications in the food, phytogenic feed,cosmeceutical and pharmaceutical industries. To meet the demand, there is a need to develop F1 hybrids withtolerance/ resistance to major threatening diseases and higher yields. The present investigation was conductedto study the diversity of morphometric, fruit quality and yield traits and their reaction to chilli leaf curl diseaseamong thirteen CGMS-based high-yielding F1 hybrids. The hybrids Arka Nihira, Arka Yashasvi, H-25, H-26, andArka Tanvi excelled for most of the traits contributing to yield enhancement. The yield increment potential inthese hybrids is attributed to high morphometric and fruit biometric. In relation to the local check (HPH-3351),hybrid Arka Nihira exhibited enhanced green fruit yield by about sixty-two per cent. The cluster plot partitionedthese hybrids into four primary groups, revealing genetic similarities and differences among the hybrids. Further,a character association study indicates that traits such as days to 50 per cent flowering, plant spread, fruitgirth, and the number of fruits per plant can be leveraged as indirect selection indices for green fruit yield whileselecting a commercial hybrid cultivar in chilli breeding programs. The hybrids, Arka Nihira and Arka Tanvi, inparticular, have the potential to be commercial cultivars in terms of yield, agronomic characteristics, and leafcurl disease tolerance in shallow basaltic soils of the Deccan plateau of Indi
辣椒是一种重要的蔬菜兼香料作物，在食品、植物饲料、化妆品和制药行业有着广泛的应用。为了满足需求，有必要培育出耐受/抵抗主要威胁性病害、产量更高的 F1 代杂交种。本研究旨在研究 13 个基于 CGMS 的高产 F1 代杂交种的形态、果实品质和产量性状的多样性及其对辣椒卷叶病的反应。杂交种 Arka Nihira、Arka Yashasvi、H-25、H-26 和 Arka Tanvi 在大多数增产性状方面表现优异。这些杂交种的增产潜力归因于高形态计量和果实生物计量。与当地对照（HPH-3351）相比，杂交种 Arka Nihira 的青果产量提高了约 62%。聚类图将这些杂交种分为四个主要组，揭示了杂交种之间的遗传相似性和差异。此外，一项性状关联研究表明，在辣椒育种计划中选择商业杂交栽培品种时，可以利用50%开花天数、植株展开度、果实产量和单株果实数等性状作为青果产量的间接选择指标。特别是杂交种 Arka Nihira 和 Arka Tanvi，在印度德干高原的浅玄武岩土壤中，在产量、农艺特性和叶卷叶病耐受性方面具有成为商业栽培品种的潜力。
{"title":"Evaluation of CGMS-based chilli F1 hybrids for morphometric, fruit quality and yield traits","authors":"P. Khapte, M. K, Naresh Ponnam, B. M, G. C. Wakchaure, Gurumurthy S","doi":"10.58993/ijh/2023.80.4.8","DOIUrl":"https://doi.org/10.58993/ijh/2023.80.4.8","url":null,"abstract":"Chilli is a significant vegetable cum spice crop having broader applications in the food, phytogenic feed,cosmeceutical and pharmaceutical industries. To meet the demand, there is a need to develop F1 hybrids withtolerance/ resistance to major threatening diseases and higher yields. The present investigation was conductedto study the diversity of morphometric, fruit quality and yield traits and their reaction to chilli leaf curl diseaseamong thirteen CGMS-based high-yielding F1 hybrids. The hybrids Arka Nihira, Arka Yashasvi, H-25, H-26, andArka Tanvi excelled for most of the traits contributing to yield enhancement. The yield increment potential inthese hybrids is attributed to high morphometric and fruit biometric. In relation to the local check (HPH-3351),hybrid Arka Nihira exhibited enhanced green fruit yield by about sixty-two per cent. The cluster plot partitionedthese hybrids into four primary groups, revealing genetic similarities and differences among the hybrids. Further,a character association study indicates that traits such as days to 50 per cent flowering, plant spread, fruitgirth, and the number of fruits per plant can be leveraged as indirect selection indices for green fruit yield whileselecting a commercial hybrid cultivar in chilli breeding programs. The hybrids, Arka Nihira and Arka Tanvi, inparticular, have the potential to be commercial cultivars in terms of yield, agronomic characteristics, and leafcurl disease tolerance in shallow basaltic soils of the Deccan plateau of Indi","PeriodicalId":13449,"journal":{"name":"Indian Journal of Horticulture","volume":" 43","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139140042","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}
Pub Date : 2023-12-30DOI: 10.58993/ijh/2023.80.4.3
Ajeesh B.R., Koundinya A.V.V., Senthilkumar K.M., Vivek Hegde, Kalidas Pati
Genetic diversity of 23 cassava accessions was studied using agro-physiological and EST-Microsatellite markers. Based on agronomical and physiological parameters the genotypes were classified into 6 clusters. Cluster-2 had highly 10 genotypes while the clusters-5 and 6 had single accession. The high yielding and highly drought tolerant genotype 8S501 stood alone in cluster-5. It had high cluster mean values for majority of the traits. The genotypes present in cluster-4 & 5 and cluster-1 & 2 were divergent and hybridization between these two groups may result in superior genotypes for drought tolerance. The EST-Microsatellites obtained from drought transcriptome of cassava showed that the mean number of alleles per locus was 1.81 with an average size of 217.7 basepairs (bp). The locus, MeESSR47 (Thylakoid membrane phosphoprotein 14 kDa, chloroplast precursor, putative), had more heterozygosity (0.387) and Shannon’s Index (0.575) among all the loci. These results cumulatively showed the low polymorphism in the EST regions of cassava DNA. The dendrogram showed 4 clusters based on EST Microsatellite diversity. The microsatellite based cluster classification of genotypes did not follow the diversity based on agronomical traits under moisture stress condition. A weak correlation revealed by Mantel test also indicated that there was no relation between agronomical and molecular diversity.
{"title":"Genetic diversity in cassava based on agronomical, physiological and est-microsatellite markers under moisture stress conditions","authors":"Ajeesh B.R., Koundinya A.V.V., Senthilkumar K.M., Vivek Hegde, Kalidas Pati","doi":"10.58993/ijh/2023.80.4.3","DOIUrl":"https://doi.org/10.58993/ijh/2023.80.4.3","url":null,"abstract":"Genetic diversity of 23 cassava accessions was studied using agro-physiological and EST-Microsatellite markers. Based on agronomical and physiological parameters the genotypes were classified into 6 clusters. Cluster-2 had highly 10 genotypes while the clusters-5 and 6 had single accession. The high yielding and highly drought tolerant genotype 8S501 stood alone in cluster-5. It had high cluster mean values for majority of the traits. The genotypes present in cluster-4 & 5 and cluster-1 & 2 were divergent and hybridization between these two groups may result in superior genotypes for drought tolerance. The EST-Microsatellites obtained from drought transcriptome of cassava showed that the mean number of alleles per locus was 1.81 with an average size of 217.7 basepairs (bp). The locus, MeESSR47 (Thylakoid membrane phosphoprotein 14 kDa, chloroplast precursor, putative), had more heterozygosity (0.387) and Shannon’s Index (0.575) among all the loci. These results cumulatively showed the low polymorphism in the EST regions of cassava DNA. The dendrogram showed 4 clusters based on EST Microsatellite diversity. The microsatellite based cluster classification of genotypes did not follow the diversity based on agronomical traits under moisture stress condition. A weak correlation revealed by Mantel test also indicated that there was no relation between agronomical and molecular diversity.","PeriodicalId":13449,"journal":{"name":"Indian Journal of Horticulture","volume":" 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139140963","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}
Pub Date : 2023-12-30DOI: 10.58993/ijh/2023.80.4.10
Manpreet Singh, Kanwaljit Singh, Veerpartap Singh
The six ground-cover species viz. aloe vera, brahmi, lemongrass, mentha, stevia and turmeric, were grownin the kinnow orchard. The cultivation of mentha, intercropped with kinnow, exhibited better performance interms of fruit length (5.81cm), fruit breadth (6.77 cm), fruit weight (156.50 g) and fruit yield (61.04 Kg), followedby brahmi as compared to other treatments. The quality attributes like juice content, total soluble solids (TSS),titratable acidity (TA), and TSS/TA of fruits grown under different intercropping systems were statistically at parwith control during the first year of study. However, the highest juice content (46.32 %), TSS (11.28 %), TSS/TA(14.25) and minimum TA (0.79 %) were recorded in kinnow intercropped with mentha. The highest leaf N contentwas recorded in the cover crops of Kinnow + mentha (1.97 %), P and K content in Kinnow + brahmi (0.20 and1.35 %, respectively), while these were found to be the lowest in control. Overall, Kinnow + mentha and Kinnow+ brahmi proved to be effective intercropping systems in the Kinnow growing areas
{"title":"Ground-cover management studies in kinnow orchard","authors":"Manpreet Singh, Kanwaljit Singh, Veerpartap Singh","doi":"10.58993/ijh/2023.80.4.10","DOIUrl":"https://doi.org/10.58993/ijh/2023.80.4.10","url":null,"abstract":"The six ground-cover species viz. aloe vera, brahmi, lemongrass, mentha, stevia and turmeric, were grownin the kinnow orchard. The cultivation of mentha, intercropped with kinnow, exhibited better performance interms of fruit length (5.81cm), fruit breadth (6.77 cm), fruit weight (156.50 g) and fruit yield (61.04 Kg), followedby brahmi as compared to other treatments. The quality attributes like juice content, total soluble solids (TSS),titratable acidity (TA), and TSS/TA of fruits grown under different intercropping systems were statistically at parwith control during the first year of study. However, the highest juice content (46.32 %), TSS (11.28 %), TSS/TA(14.25) and minimum TA (0.79 %) were recorded in kinnow intercropped with mentha. The highest leaf N contentwas recorded in the cover crops of Kinnow + mentha (1.97 %), P and K content in Kinnow + brahmi (0.20 and1.35 %, respectively), while these were found to be the lowest in control. Overall, Kinnow + mentha and Kinnow+ brahmi proved to be effective intercropping systems in the Kinnow growing areas","PeriodicalId":13449,"journal":{"name":"Indian Journal of Horticulture","volume":" 14","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139141156","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}
Micropropagation techniques of papaya have been optimized Worldwide. However, standard rapid multiplication technique of papaya at commercial level with economically viable is still lacking. Since establishment of in vitro culture pretty easy at the same time in vitro rooting of papaya is still difficult. However, in vitro rooting is costly and the roots initiated in vitro do not have lateral branches and root hairs, making them difficult to acclimatize. Hence ex vitro rooting induction of micro-propagated plantlets and acclimatization were conducted. In vitro cultures were established using shoot tips from seedlings of selected advanced intergeneric hybrid. They were inoculated onto Murashige and Skoog (MS) medium + 3% sucrose + 1 µM BAP + 1 µM GA3 + 0.1 µM IAA + 0.25% phytagel until plantlets were obtained. For ex vitro rooting, plantlets were cultured with various concentrations of phloroglucinol (PG) to investigate the appropriate condition of rooting. Direct rooting (82%) of papaya micro-cutting into potting medium (perlite + vermiculite + coco peat; in the ratio of 1:1:2) subsequent dipping into phloroglucinol was more effective than in vitro rooting and led to amended survival percentage (82%) of micro-cutting during acclimatization. PG at 1000 µM was extra effectual than IBA in encouraging root development. Sachet method was found to be the best appropriate for ex vitro rooting and hardening of papaya with single-step acclimatization.
{"title":"Ex vitro rooting of micro-propagated intergeneric papaya through phloroglucinol","authors":"Kalu Ram Bror, Vasugi C, Pious Thomas, Dinesh M.R.","doi":"10.58993/ijh/2023.80.4.9","DOIUrl":"https://doi.org/10.58993/ijh/2023.80.4.9","url":null,"abstract":"Micropropagation techniques of papaya have been optimized Worldwide. However, standard rapid multiplication technique of papaya at commercial level with economically viable is still lacking. Since establishment of in vitro culture pretty easy at the same time in vitro rooting of papaya is still difficult. However, in vitro rooting is costly and the roots initiated in vitro do not have lateral branches and root hairs, making them difficult to acclimatize. Hence ex vitro rooting induction of micro-propagated plantlets and acclimatization were conducted. In vitro cultures were established using shoot tips from seedlings of selected advanced intergeneric hybrid. They were inoculated onto Murashige and Skoog (MS) medium + 3% sucrose + 1 µM BAP + 1 µM GA3 + 0.1 µM IAA + 0.25% phytagel until plantlets were obtained. For ex vitro rooting, plantlets were cultured with various concentrations of phloroglucinol (PG) to investigate the appropriate condition of rooting. Direct rooting (82%) of papaya micro-cutting into potting medium (perlite + vermiculite + coco peat; in the ratio of 1:1:2) subsequent dipping into phloroglucinol was more effective than in vitro rooting and led to amended survival percentage (82%) of micro-cutting during acclimatization. PG at 1000 µM was extra effectual than IBA in encouraging root development. Sachet method was found to be the best appropriate for ex vitro rooting and hardening of papaya with single-step acclimatization.","PeriodicalId":13449,"journal":{"name":"Indian Journal of Horticulture","volume":" 33","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139137493","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}
Pub Date : 2023-12-30DOI: 10.58993/ijh/2023.80.4.13
Manisha Thakur, C.S. Aulakh, A.S. Sidhu
Organic and natural farming are considered as an alternative to modern agriculture for sustaining soil and environmental health, and better quality of agricultural produce free from pesticide residues. The consumer concern for the same is more for vegetables and fruits as they generally are consumed raw and have higher frequency of purchase. Field experiments were conducted in northwest India during 2018 and 2019 to evaluate the performance of pea-okra- radish cropping system under organic and natural farming practices with paddy straw mulch and no-mulch conditions. The treatments consisted of farmyard manure (FYM) to supply recommended nitrogen to the crops, natural farming practices-250 kg FYM/ha + on-farm preparations (NF), FYM + NF and FYM + vermicompost (VC). The FYM, FYM + NF and FYM + VC were at par with each other but were significantly superior to NF and unfertilized control in respect of economic yields of all the crops. The economic yields of pea, okra, and radish were 40.11, 46.48 and 25.99 per cent higher with FYM than NF. Paddy straw mulch gave significantly higher economic yields (11.10, 12.56 and 19.28 per cent in pea, okra and radish) compared to no-mulch. Though the economic yields were higher with FYM + NF but the benefit-cost ratios for all the crops were higher with FYM alone due to higher cost of production in other treatments.
{"title":"Productivity and economic feasibility of vegetable-based cropping system under organic and natural farming conditions in Indo-Gangetic plains of India","authors":"Manisha Thakur, C.S. Aulakh, A.S. Sidhu","doi":"10.58993/ijh/2023.80.4.13","DOIUrl":"https://doi.org/10.58993/ijh/2023.80.4.13","url":null,"abstract":"Organic and natural farming are considered as an alternative to modern agriculture for sustaining soil and environmental health, and better quality of agricultural produce free from pesticide residues. The consumer concern for the same is more for vegetables and fruits as they generally are consumed raw and have higher frequency of purchase. Field experiments were conducted in northwest India during 2018 and 2019 to evaluate the performance of pea-okra- radish cropping system under organic and natural farming practices with paddy straw mulch and no-mulch conditions. The treatments consisted of farmyard manure (FYM) to supply recommended nitrogen to the crops, natural farming practices-250 kg FYM/ha + on-farm preparations (NF), FYM + NF and FYM + vermicompost (VC). The FYM, FYM + NF and FYM + VC were at par with each other but were significantly superior to NF and unfertilized control in respect of economic yields of all the crops. The economic yields of pea, okra, and radish were 40.11, 46.48 and 25.99 per cent higher with FYM than NF. Paddy straw mulch gave significantly higher economic yields (11.10, 12.56 and 19.28 per cent in pea, okra and radish) compared to no-mulch. Though the economic yields were higher with FYM + NF but the benefit-cost ratios for all the crops were higher with FYM alone due to higher cost of production in other treatments.","PeriodicalId":13449,"journal":{"name":"Indian Journal of Horticulture","volume":" 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139140508","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 study was carried out to assess the storage potential of onion genotypes under natural as well as accelerated ageing conditions. Freshly harveted seeds of thirty onion genotypes were subjected to nine months of natural ageing as well as accelerated ageing for 3 and 6 days (42oC and 75% RH). Significant effects of seed ageing on germination percent, seed vigour index, mean germination time and germination index were recorded. Germination percent ranged from 56.0- 96.0 percent in unaged seeds, which declined to 31.0-82.0 and 18.0-83.0 percent respectively after natural (9 months) and accelerated ageing treatments (6 days). In the current study, the seed germination and vigour indices decreased significantly, whereas the mean germination time increased for all the genotypes under both ageing treatments. Further, cluster analysis was utilized to categorize the onion genotypes into good or poorer storers. A significant and positive correlation was found among both natural as well as artificial ageing treatments. The study facilitated the categorization of onion genotypes into distinct storage groups by evaluating their performance under both natural as well as accelerated ageing.
{"title":"Comparative assessment of onion seed longevity under ambient storage and artificial ageing conditions","authors":"Narender Pal, Sandeep Kumar Lal, Sudipta Basu, Anil Khar, Anjali Anand, Shailendra Kumar Jha, Vishwanath Yalamalle","doi":"10.58993/ijh/2023.80.4.12","DOIUrl":"https://doi.org/10.58993/ijh/2023.80.4.12","url":null,"abstract":"A study was carried out to assess the storage potential of onion genotypes under natural as well as accelerated ageing conditions. Freshly harveted seeds of thirty onion genotypes were subjected to nine months of natural ageing as well as accelerated ageing for 3 and 6 days (42oC and 75% RH). Significant effects of seed ageing on germination percent, seed vigour index, mean germination time and germination index were recorded. Germination percent ranged from 56.0- 96.0 percent in unaged seeds, which declined to 31.0-82.0 and 18.0-83.0 percent respectively after natural (9 months) and accelerated ageing treatments (6 days). In the current study, the seed germination and vigour indices decreased significantly, whereas the mean germination time increased for all the genotypes under both ageing treatments. Further, cluster analysis was utilized to categorize the onion genotypes into good or poorer storers. A significant and positive correlation was found among both natural as well as artificial ageing treatments. The study facilitated the categorization of onion genotypes into distinct storage groups by evaluating their performance under both natural as well as accelerated ageing.","PeriodicalId":13449,"journal":{"name":"Indian Journal of Horticulture","volume":" 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139140862","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}
Pub Date : 2023-12-30DOI: 10.58993/ijh/2023.80.4.6
Jnapika K H, Nagaraja Arumugam, M. Srivastav, M. K. Verma, G. Krishnan S, S.V. Amitha, Nimisha Sharma
The vigour, blooming, yield, and biochemical features of seventy mango hybrids, including their parents,‘Amrapali’ and ‘Sensation’, were evaluated. The hybrid ‘H-13-5’ had the greatest plant height (10.11m), wherestem girth was maximum in ‘H-1-6’ (132.21cm), and ‘H-13-1’ had the largest canopy spread (9.77 m). The hybrid‘H-13-4’ exhibited the highest bark-wood ratio (7.59), signifying a higher percentage of mature wood surroundingthe entire stem. Hybrid ‘H-1-9’ had the highest stomatal density (797 stomata/mm2) as a dwarfing trait. Regardingreproductive characteristics, hybrid ‘H-11-4’ produced the maximum number of fruits (2.51) per panicle. Witha more significant fruit retention percentage of 62%, the hybrid ‘H-11-1’ showed improved fruit retention onthe tree. The tree with the higher fruit output, hybrid ‘H-1-8’, produced 43 kg of fruit per tree. The hybrid ‘H-1-5’ produced the maximum size of fruits (317 g/ per fruit). These signify that the resultant hybrids have a lotof potential for future breeding and commercial exploitation be cause of their advantageous economic traits
{"title":"Characterization of mango hybrids and their parents for vigor, flowering, yield components and biochemical traits","authors":"Jnapika K H, Nagaraja Arumugam, M. Srivastav, M. K. Verma, G. Krishnan S, S.V. Amitha, Nimisha Sharma","doi":"10.58993/ijh/2023.80.4.6","DOIUrl":"https://doi.org/10.58993/ijh/2023.80.4.6","url":null,"abstract":"The vigour, blooming, yield, and biochemical features of seventy mango hybrids, including their parents,‘Amrapali’ and ‘Sensation’, were evaluated. The hybrid ‘H-13-5’ had the greatest plant height (10.11m), wherestem girth was maximum in ‘H-1-6’ (132.21cm), and ‘H-13-1’ had the largest canopy spread (9.77 m). The hybrid‘H-13-4’ exhibited the highest bark-wood ratio (7.59), signifying a higher percentage of mature wood surroundingthe entire stem. Hybrid ‘H-1-9’ had the highest stomatal density (797 stomata/mm2) as a dwarfing trait. Regardingreproductive characteristics, hybrid ‘H-11-4’ produced the maximum number of fruits (2.51) per panicle. Witha more significant fruit retention percentage of 62%, the hybrid ‘H-11-1’ showed improved fruit retention onthe tree. The tree with the higher fruit output, hybrid ‘H-1-8’, produced 43 kg of fruit per tree. The hybrid ‘H-1-5’ produced the maximum size of fruits (317 g/ per fruit). These signify that the resultant hybrids have a lotof potential for future breeding and commercial exploitation be cause of their advantageous economic traits","PeriodicalId":13449,"journal":{"name":"Indian Journal of Horticulture","volume":" 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139141321","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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