Pub Date : 2019-01-01DOI: 10.25081/JPC.2019.V47.I2.5786
M. Prasad, P. Sowjanya, N. Rao, A. Sarkar, T. Kumar, K. Rajesh, K. Srikanth
{"title":"Effectiveness of training programme on oil palm technologies for multipurpose extension officers of state department of horticulture, Andhra Pradesh","authors":"M. Prasad, P. Sowjanya, N. Rao, A. Sarkar, T. Kumar, K. Rajesh, K. Srikanth","doi":"10.25081/JPC.2019.V47.I2.5786","DOIUrl":"https://doi.org/10.25081/JPC.2019.V47.I2.5786","url":null,"abstract":"","PeriodicalId":36468,"journal":{"name":"Journal of Plantation Crops","volume":"1 1","pages":"128-131"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69215505","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 : 2019-01-01DOI: 10.25081/JPC.2019.V47.I3.6055
M. Mohan, Dugganna Girija, K. Gopal, P. Sureshkumar
The rhizosphere bacterial diversity of a plant is considered to play an essential role in mediating plant as well as soil health. An attempt to explore the bacterial diversity in the rhizosphere of arecanut palms in Wayanad was done to obtain an understanding of dominant bacterial phylotypes and the status of nutrient concentrations in rhizosphere soil and plants. Since arecanut production in Wayanad is facing a decline, a study to understand the rhizosphere conditions of healthy palms essentially provided insight into what strategies needed to be adopted for improvement of arecanut cultivation. The nutrient imbalance involving increased iron in soil and deficiencies of calcium, magnesium, zinc, and boron in the Arecanut rhizosphere was found to be an evident reason for the decline in production. Apart from that, the biological activities in the rhizosphere by the diversity of microorganisms were studied to understand the dominant bacterial phyla and genera present in the Arecanut rhizosphere. The presence of various important bacterial phyla like Proteobacteria, Actinobacteria, Acidobacteria, Firmicutes, and Bacteroidetes revealed the presence of various beneficial soil microorganisms and emphasized the need to enhance or augment the population of native microflora for efficient nutrient cycling by increasing the organic content of the soil. Since organic carbon is an essential requirement to support bacterial diversity, proper management practice that encompasses organic carbon amendment along with proper nutritional management could enhance bacterial diversity as well as health of the arecanut palms. The study indicated that the dominant bacterial phyla contained various beneficial microorganisms that can be exploited for improving nutrient recycling in the arecanut rhizosphere.
{"title":"Microbial insight into rhizosphere of arecanut palms of Wayanad using metagenomics","authors":"M. Mohan, Dugganna Girija, K. Gopal, P. Sureshkumar","doi":"10.25081/JPC.2019.V47.I3.6055","DOIUrl":"https://doi.org/10.25081/JPC.2019.V47.I3.6055","url":null,"abstract":"The rhizosphere bacterial diversity of a plant is considered to play an essential role in mediating plant as well as soil health. An attempt to explore the bacterial diversity in the rhizosphere of arecanut palms in Wayanad was done to obtain an understanding of dominant bacterial phylotypes and the status of nutrient concentrations in rhizosphere soil and plants. Since arecanut production in Wayanad is facing a decline, a study to understand the rhizosphere conditions of healthy palms essentially provided insight into what strategies needed to be adopted for improvement of arecanut cultivation. The nutrient imbalance involving increased iron in soil and deficiencies of calcium, magnesium, zinc, and boron in the Arecanut rhizosphere was found to be an evident reason for the decline in production. Apart from that, the biological activities in the rhizosphere by the diversity of microorganisms were studied to understand the dominant bacterial phyla and genera present in the Arecanut rhizosphere. The presence of various important bacterial phyla like Proteobacteria, Actinobacteria, Acidobacteria, Firmicutes, and Bacteroidetes revealed the presence of various beneficial soil microorganisms and emphasized the need to enhance or augment the population of native microflora for efficient nutrient cycling by increasing the organic content of the soil. Since organic carbon is an essential requirement to support bacterial diversity, proper management practice that encompasses organic carbon amendment along with proper nutritional management could enhance bacterial diversity as well as health of the arecanut palms. The study indicated that the dominant bacterial phyla contained various beneficial microorganisms that can be exploited for improving nutrient recycling in the arecanut rhizosphere.","PeriodicalId":36468,"journal":{"name":"Journal of Plantation Crops","volume":"1 1","pages":"189-196"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69215569","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 : 2019-01-01DOI: 10.25081/JPC.2019.V47.I1.5530
K. Prakash, K. S. Kumar, R. Chaudhury
The seed storage behaviour of oil palm (Elaeis guineensis Jacq.) is enigmatic. Earlier, it was categorised as recalcitrant or orthodox and later, it was confirmed to be exhibiting intermediate seed storage behaviour. Considerable difference in the water content between zygotic embryo and the seed/kernel exists which is proportionally maintained even after desiccation of kernel, which qualifies it to be intermediate storage behaviour. To attempt long term conservation of oil palm germplasm grown in India, studies on germinability/viability in relation to moisture content was conducted for ‘dura’ palm using seed kernel, zygotic embryos and endosperm plug as explants. Based on desiccation and cryopreservation experiments in kernels and embryos, it showed intermediate storage behavior. Zygotic embryo cryopreservation was possible between the moisture content of 10-20 per cent of embryos, and was achieved using silica gel desiccation method of either kernels or embryos or both. Four hours of desiccation under laminar air flow was found optimum to maintain viability after cryo-exposure. A new type of explant, endosperm plug, of 0.1 g weight and 2-5 mm length could offer advantage for the desiccation and cryopreservation of oil palm as it could be dehydrated up to 6 per cent moisture level and retained 20 per cent viability after cryo-exposure. Initial attempt to use encapsulation-dehydration and vitrification-desiccation methods for embryos of oil palm did not yield positive results, necessitating further experiments.
{"title":"Cryopreservation of kernel and zygotic embryos of oil palm (Elaeis guineensis Jacq.)","authors":"K. Prakash, K. S. Kumar, R. Chaudhury","doi":"10.25081/JPC.2019.V47.I1.5530","DOIUrl":"https://doi.org/10.25081/JPC.2019.V47.I1.5530","url":null,"abstract":"The seed storage behaviour of oil palm (Elaeis guineensis Jacq.) is enigmatic. Earlier, it was categorised as recalcitrant or orthodox and later, it was confirmed to be exhibiting intermediate seed storage behaviour. Considerable difference in the water content between zygotic embryo and the seed/kernel exists which is proportionally maintained even after desiccation of kernel, which qualifies it to be intermediate storage behaviour. To attempt long term conservation of oil palm germplasm grown in India, studies on germinability/viability in relation to moisture content was conducted for ‘dura’ palm using seed kernel, zygotic embryos and endosperm plug as explants. Based on desiccation and cryopreservation experiments in kernels and embryos, it showed intermediate storage behavior. Zygotic embryo cryopreservation was possible between the moisture content of 10-20 per cent of embryos, and was achieved using silica gel desiccation method of either kernels or embryos or both. Four hours of desiccation under laminar air flow was found optimum to maintain viability after cryo-exposure. A new type of explant, endosperm plug, of 0.1 g weight and 2-5 mm length could offer advantage for the desiccation and cryopreservation of oil palm as it could be dehydrated up to 6 per cent moisture level and retained 20 per cent viability after cryo-exposure. Initial attempt to use encapsulation-dehydration and vitrification-desiccation methods for embryos of oil palm did not yield positive results, necessitating further experiments.","PeriodicalId":36468,"journal":{"name":"Journal of Plantation Crops","volume":"1 1","pages":"16-23"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69215714","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 : 2019-01-01DOI: 10.25081/JPC.2019.V47.I1.5533
Vibina Venugopal, K. Subaharan
{"title":"Olfactory response of red palm weevil, Rhynchophorous ferrugineus (Olivier) (Coleoptera: Dryophthoridae), to host / food volatiles","authors":"Vibina Venugopal, K. Subaharan","doi":"10.25081/JPC.2019.V47.I1.5533","DOIUrl":"https://doi.org/10.25081/JPC.2019.V47.I1.5533","url":null,"abstract":"","PeriodicalId":36468,"journal":{"name":"Journal of Plantation Crops","volume":"1 1","pages":"41-47"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69215264","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 : 2019-01-01DOI: 10.25081/JPC.2019.V47.I1.5531
M. Smitha, K. Nithin, A. Sobhana
Evaluation of fungal entomopathogens, viz., Beauveria bassiana, Metarhizium anisopliae and Lecanicillium lecanii against tea mosquito bug (Helopeltis antonii Signoret), an insect pest of cashew revealed that these fungi are pathogenic to H. antonii. Mortality of H. antonii commenced after three days of inoculation, increased gradually with time and became evident at fifth day with 82.5 per 9 -1 cent, 85 per cent and 65 per cent respectively with B. bassiana, M. anisopliae and L. lecanii @10 spores mL . B. bassiana and M. anisopliae shown complete mortality at sixth day, whereas mortality rate with L. lecanii was 85 per cent. A field experiment was 8 -1 conducted in randomized block design for two consecutive years with these three entomopathogenic fungi @10 spores mL . Two rounds of spray were given by targeting flowering and nut set stage in the first year, instead of the routine three spray schedule on flushing, flowering and nut set; while routine three sprays were given in the second year. In the first year of field evaluation, least damage was observed in Kerala Agricultural University package of practices (KAU POP) with quinalphos, targeting both flowering and nut set stage. However, both B. bassiana and L. lecanii also recorded less tea mosquito bug damage and were comparable with KAU POP. In the second year, B. bassiana was on par with KAU POP and L. lecanii was superior to control. Highest nut yield was recorded in trees treated with B. bassiana followed by KAU POP.
{"title":"Entomopathogenic fungi – Potential candidates for biocontrol of Helopeltis antonii Signoret in cashew","authors":"M. Smitha, K. Nithin, A. Sobhana","doi":"10.25081/JPC.2019.V47.I1.5531","DOIUrl":"https://doi.org/10.25081/JPC.2019.V47.I1.5531","url":null,"abstract":"Evaluation of fungal entomopathogens, viz., Beauveria bassiana, Metarhizium anisopliae and Lecanicillium lecanii against tea mosquito bug (Helopeltis antonii Signoret), an insect pest of cashew revealed that these fungi are pathogenic to H. antonii. Mortality of H. antonii commenced after three days of inoculation, increased gradually with time and became evident at fifth day with 82.5 per 9 -1 cent, 85 per cent and 65 per cent respectively with B. bassiana, M. anisopliae and L. lecanii @10 spores mL . B. bassiana and M. anisopliae shown complete mortality at sixth day, whereas mortality rate with L. lecanii was 85 per cent. A field experiment was 8 -1 conducted in randomized block design for two consecutive years with these three entomopathogenic fungi @10 spores mL . Two rounds of spray were given by targeting flowering and nut set stage in the first year, instead of the routine three spray schedule on flushing, flowering and nut set; while routine three sprays were given in the second year. In the first year of field evaluation, least damage was observed in Kerala Agricultural University package of practices (KAU POP) with quinalphos, targeting both flowering and nut set stage. However, both B. bassiana and L. lecanii also recorded less tea mosquito bug damage and were comparable with KAU POP. In the second year, B. bassiana was on par with KAU POP and L. lecanii was superior to control. Highest nut yield was recorded in trees treated with B. bassiana followed by KAU POP.","PeriodicalId":36468,"journal":{"name":"Journal of Plantation Crops","volume":"117 1","pages":"24-30"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69215242","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 : 2019-01-01DOI: 10.25081/JPC.2019.V47.I2.5763
R. Ramjegathesh, I. Johnson,, K. M. Hubali, H. P. Maheswarappa
Coconut leaf blight pathogen Lasiodiplodia theobromae (Pat.) was characterized based on morphological, cultural characters and Internal Transcribed Spacer (ITS) sequences. Pathogen isolates collected from various coconut growing areas of Tamil Nadu, India showed significant differences in the colony morphology, colour, spore dimensions and fruiting bodies. Molecular characterization by partial sequencing of ITS region confirmed the identity of pathogen as L. theobromae . Among the several methods of inoculation employed to establish the pathogenicity, pinprick method with spraying of conidial suspension (10 spores mL ) and spot application of mycelial mat (5 mm disc) at the inoculation site produced typical necrotic spots and lesions on coconut leaves of West Coast Tall, Arasampatti Tall, Chowghat Orange Dwarf and Chowghat Green Dwarf. Koch’s postulates were established to confirm pathogenicity. The result of the study helps to streamline the existing management strategies.
{"title":"Characterization of Lasiodiplodia theobromae causing leaf blight disease of coconut","authors":"R. Ramjegathesh, I. Johnson,, K. M. Hubali, H. P. Maheswarappa","doi":"10.25081/JPC.2019.V47.I2.5763","DOIUrl":"https://doi.org/10.25081/JPC.2019.V47.I2.5763","url":null,"abstract":"Coconut leaf blight pathogen Lasiodiplodia theobromae (Pat.) was characterized based on morphological, cultural characters and Internal Transcribed Spacer (ITS) sequences. Pathogen isolates collected from various coconut growing areas of Tamil Nadu, India showed significant differences in the colony morphology, colour, spore dimensions and fruiting bodies. Molecular characterization by partial sequencing of ITS region confirmed the identity of pathogen as L. theobromae . Among the several methods of inoculation employed to establish the pathogenicity, pinprick method with spraying of conidial suspension (10 spores mL ) and spot application of mycelial mat (5 mm disc) at the inoculation site produced typical necrotic spots and lesions on coconut leaves of West Coast Tall, Arasampatti Tall, Chowghat Orange Dwarf and Chowghat Green Dwarf. Koch’s postulates were established to confirm pathogenicity. The result of the study helps to streamline the existing management strategies.","PeriodicalId":36468,"journal":{"name":"Journal of Plantation Crops","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69215317","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 : 2019-01-01DOI: 10.25081/JPC.2019.V47.I2.5778
H. P. Bhagya, P. Gangadharappa, B. Kalyanababu, D. S. M. B. N. Naika, R. Naik
productivity and C-sequestration (Srinivasan et al., for Agricultural Research. 2 Edition, John Wiley and 2012; Manna et al., 2012). As per the report of Sons, New York. 704p. Manna et al. (2012), the long-term C sequestration Lal, R. 2004. Soil carbon sequestration impacts on global in soil is dependent on both organic C inputs and its climate change and food security. Science 304:1623stability in soil organic sources of nutrients such as Liang, C and Balser, T. C. 2011. Microbial production of FYM that decompose slowly resulting in more SOC recalcitrant organic matter in global soils: Implications for accumulation in soil. Apart from a direct productivity and climate policy. Nature Reviews contribution to soil organic C, organic manures Microbiology, doi:10.1038/nrmicro2386-c1031. applied to soil may also improve C accumulation Liyanage, L.V.K., Jayasundra, H.P.S., Mathes, D.T and indirectly through enhancing microbial biomass Fernado, D.N.S. 1989. Integration of pastures, fodder and and activity as reported by Liang and Balser (2011). cattle in coconut small holdings. CORD 5(2): 53-66.
生产力和碳封存(Srinivasan et al., for Agricultural Research. 2 Edition, John Wiley and 2012);Manna et al., 2012)。根据纽约《儿子》杂志的报道,704页。Manna et al.(2012),长期碳封存Lal, R. 2004。土壤固碳对全球土壤的影响既取决于有机碳投入,也取决于气候变化和粮食安全。[j] .中国科学院学报(自然科学版),2011。微生物生产的FYM分解缓慢,导致更多的有机碳顽固性有机质在全球土壤:对土壤积累的影响。除了直接的生产力和气候政策。土壤有机碳,有机肥料微生物学,doi:10.1038/nrmicro2386-c1031。Liyanage, L.V.K, Jayasundra, h.p.s., Mathes, D.T,并间接通过提高微生物生物量。根据Liang和Balser(2011)的报告,牧场、饲料和活动的整合。牛在椰子小农场。脐带5(2):53-66。
{"title":"Multivariate analysis of oil palm germplasm for vegetative and bunch yield traits","authors":"H. P. Bhagya, P. Gangadharappa, B. Kalyanababu, D. S. M. B. N. Naika, R. Naik","doi":"10.25081/JPC.2019.V47.I2.5778","DOIUrl":"https://doi.org/10.25081/JPC.2019.V47.I2.5778","url":null,"abstract":"productivity and C-sequestration (Srinivasan et al., for Agricultural Research. 2 Edition, John Wiley and 2012; Manna et al., 2012). As per the report of Sons, New York. 704p. Manna et al. (2012), the long-term C sequestration Lal, R. 2004. Soil carbon sequestration impacts on global in soil is dependent on both organic C inputs and its climate change and food security. Science 304:1623stability in soil organic sources of nutrients such as Liang, C and Balser, T. C. 2011. Microbial production of FYM that decompose slowly resulting in more SOC recalcitrant organic matter in global soils: Implications for accumulation in soil. Apart from a direct productivity and climate policy. Nature Reviews contribution to soil organic C, organic manures Microbiology, doi:10.1038/nrmicro2386-c1031. applied to soil may also improve C accumulation Liyanage, L.V.K., Jayasundra, H.P.S., Mathes, D.T and indirectly through enhancing microbial biomass Fernado, D.N.S. 1989. Integration of pastures, fodder and and activity as reported by Liang and Balser (2011). cattle in coconut small holdings. CORD 5(2): 53-66.","PeriodicalId":36468,"journal":{"name":"Journal of Plantation Crops","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69215374","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 : 2019-01-01DOI: 10.25081/JPC.2019.V47.I1.5536
R. Srinivasan, A. Natarajan, K. A. Kumar, M. Lalitha
This study was taken up to assess the soil organic carbon (SOC) stock under cashew plantations in different management conditions viz., natural (cashew mixed with forest trees and cashew in scrub land conditions) and intensive management (research stations) in regions/locations of coastal Karnataka. Profile study was undertaken and six major soil series were identified. Horizon-wise soil samples were collected from different layers of soil profiles and the major soil properties viz., bulk density, pH, EC, particle size distribution and SOC were determined using standard laboratory procedures. The SOC stock was high in surface soils (2.0 to -2 -2 8.23 kg C m ) compared to subsoils (0.08 to 3.28 kg C m ) and it decreased with depth. The maximum SOC was found in mixed forest land use system followed by cashew plantation in scrub land and in research farm. The SOC stock in different depths (0-30, 30-100 -2 -2 and 0-100 cm) of the soils varied from 2.37 to 9.70 kg C m and 1.48 to 5.69 kg C m , respectively. Result indicated that cashew plantation under natural management has more SOC stock and high carbon sequestration potential-than intensively managed cashew plantations.
本研究旨在评估卡纳塔克邦沿海地区不同管理条件下腰果人工林土壤有机碳(SOC)储量,即天然(腰果与森林混种和灌丛条件下的腰果)和集约管理(研究站)。进行了剖面研究,确定了6个主要的土壤系列。水平方向的土壤样本从不同的土壤剖面层收集,并使用标准的实验室程序确定了主要的土壤特性,即体积密度、pH、EC、粒度分布和有机碳。表层土壤有机碳储量(2.0 ~ 2 -2 8.23 kg C m)高于下层土壤(0.08 ~ 3.28 kg C m),且随深度增加而减少。土壤有机碳含量最高的是混交林土地利用系统,其次是灌丛地腰果人工林和研究农场。不同深度(0-30、30-100 -2和0-100 cm)土壤有机碳储量变化范围分别为2.37 ~ 9.70 kg C m和1.48 ~ 5.69 kg C m。结果表明,与集约经营腰果人工林相比,自然经营腰果人工林具有更高的有机碳储量和固碳潜力。
{"title":"Carbon stocks in major cashew growing soils of coastal Karnataka, India","authors":"R. Srinivasan, A. Natarajan, K. A. Kumar, M. Lalitha","doi":"10.25081/JPC.2019.V47.I1.5536","DOIUrl":"https://doi.org/10.25081/JPC.2019.V47.I1.5536","url":null,"abstract":"This study was taken up to assess the soil organic carbon (SOC) stock under cashew plantations in different management conditions viz., natural (cashew mixed with forest trees and cashew in scrub land conditions) and intensive management (research stations) in regions/locations of coastal Karnataka. Profile study was undertaken and six major soil series were identified. Horizon-wise soil samples were collected from different layers of soil profiles and the major soil properties viz., bulk density, pH, EC, particle size distribution and SOC were determined using standard laboratory procedures. The SOC stock was high in surface soils (2.0 to -2 -2 8.23 kg C m ) compared to subsoils (0.08 to 3.28 kg C m ) and it decreased with depth. The maximum SOC was found in mixed forest land use system followed by cashew plantation in scrub land and in research farm. The SOC stock in different depths (0-30, 30-100 -2 -2 and 0-100 cm) of the soils varied from 2.37 to 9.70 kg C m and 1.48 to 5.69 kg C m , respectively. Result indicated that cashew plantation under natural management has more SOC stock and high carbon sequestration potential-than intensively managed cashew plantations.","PeriodicalId":36468,"journal":{"name":"Journal of Plantation Crops","volume":"1 1","pages":"64-70"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69215283","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 : 2019-01-01DOI: 10.25081/JPC.2019.V47.I2.5767
Vibina Venugopal, K. Subaharan
{"title":"Electrophysiological and behavioral response of red palm weevil, Rhynchophorus ferrugineus (Olivier) (Coleoptera: Dryophthoridae) to fermented coconut sap neera","authors":"Vibina Venugopal, K. Subaharan","doi":"10.25081/JPC.2019.V47.I2.5767","DOIUrl":"https://doi.org/10.25081/JPC.2019.V47.I2.5767","url":null,"abstract":"","PeriodicalId":36468,"journal":{"name":"Journal of Plantation Crops","volume":"1 1","pages":"82-89"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69215349","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 : 2019-01-01DOI: 10.25081/JPC.2019.V47.I1.5528
A. Pallavicini, J. Devasia, Paolo Edomi Martina Modonut, L. Navarini
The mode of coffee processing, either the wet or dry method, determines the characteristic flavour and establishes the differences in quality of the final green coffee produced. The present study focused mainly on identifying the differential gene expression in green coffee seeds of Brazilian arabica coffee (Coffea arabica L.) among samples prepared under three different post-harvest treatments (natural, washed and semi washed method) and grown in two different locations. Expression levels of 16 genes of interest were measured. These genes are involved in various cellular, metabolic and biochemical activities influencing levels of certain compounds, such as lipids, carbohydrates, caffeine and chlorogenic acid, associated with quality characteristics of the beverage. Microarray experiments were designed with cDNA probe sequences. Microarray data was analyzed to identify the differences in gene expression between two altitudes and between two variables: location and post-harvest treatment. Cluster analysis was carried out with samples showing similar patterns, which are characteristic to the group. With this approach, it was possible to identify the important genes in C. arabica seeds that have differential (increased or decreased) expression levels. It was also seen that between the location and treatments, location profoundly impacts the levels of gene expression in samples.
{"title":"Gene expression analysis of Coffea arabica seeds processed under different post-harvest processing methods","authors":"A. Pallavicini, J. Devasia, Paolo Edomi Martina Modonut, L. Navarini","doi":"10.25081/JPC.2019.V47.I1.5528","DOIUrl":"https://doi.org/10.25081/JPC.2019.V47.I1.5528","url":null,"abstract":"The mode of coffee processing, either the wet or dry method, determines the characteristic flavour and establishes the differences in quality of the final green coffee produced. The present study focused mainly on identifying the differential gene expression in green coffee seeds of Brazilian arabica coffee (Coffea arabica L.) among samples prepared under three different post-harvest treatments (natural, washed and semi washed method) and grown in two different locations. Expression levels of 16 genes of interest were measured. These genes are involved in various cellular, metabolic and biochemical activities influencing levels of certain compounds, such as lipids, carbohydrates, caffeine and chlorogenic acid, associated with quality characteristics of the beverage. Microarray experiments were designed with cDNA probe sequences. Microarray data was analyzed to identify the differences in gene expression between two altitudes and between two variables: location and post-harvest treatment. Cluster analysis was carried out with samples showing similar patterns, which are characteristic to the group. With this approach, it was possible to identify the important genes in C. arabica seeds that have differential (increased or decreased) expression levels. It was also seen that between the location and treatments, location profoundly impacts the levels of gene expression in samples.","PeriodicalId":36468,"journal":{"name":"Journal of Plantation Crops","volume":"1 1","pages":"1-15"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69215695","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}