Pub Date : 2023-01-09DOI: 10.1163/22238980-bja10074
O. Barazani
Plants of Eruca sativa from a desert population produce less vegetative biomass, flower earlier and possess higher density of trichomes than plants from a more mesic Mediterranean habitat. When eliciting plant defense mechanisms with methyl-jasmonate (MJ), trichome formation was exclusively enhanced in plants of the Mediterranean ecotype. To test the relative costs of defenses, ecologically-important traits were monitored in non-elicited plants of the two ecotypes and when defenses were induced by MJ. Opposing the expected tradeoffs of induced defense, MJ- elicitation significantly delayed bolting and flowering in plants of the desert ecotype but not in the Mediterranean ones. Moreover, MJ did not impose costs on fitness- related traits, i.e. fruit and seed production, nor differences between plants of the two ecotypes were found. It is suggested that early flowering in plants of the desert ecotype provide a mean to escape both the abiotic stressful environment as well herbivory, while induced defense in the Mediterranean ecotype was favored in habitats of more stressful biotic interactions. The results are discussed in light of the optimal defense theory and resource availability hypothesis.
{"title":"Testing the costs of defense against herbivores in ecotypes of Eruca sativa (Brassicaceae)","authors":"O. Barazani","doi":"10.1163/22238980-bja10074","DOIUrl":"https://doi.org/10.1163/22238980-bja10074","url":null,"abstract":"\u0000Plants of Eruca sativa from a desert population produce less vegetative biomass, flower earlier and possess higher density of trichomes than plants from a more mesic Mediterranean habitat. When eliciting plant defense mechanisms with methyl-jasmonate (MJ), trichome formation was exclusively enhanced in plants of the Mediterranean ecotype. To test the relative costs of defenses, ecologically-important traits were monitored in non-elicited plants of the two ecotypes and when defenses were induced by MJ. Opposing the expected tradeoffs of induced defense, MJ- elicitation significantly delayed bolting and flowering in plants of the desert ecotype but not in the Mediterranean ones. Moreover, MJ did not impose costs on fitness- related traits, i.e. fruit and seed production, nor differences between plants of the two ecotypes were found. It is suggested that early flowering in plants of the desert ecotype provide a mean to escape both the abiotic stressful environment as well herbivory, while induced defense in the Mediterranean ecotype was favored in habitats of more stressful biotic interactions. The results are discussed in light of the optimal defense theory and resource availability hypothesis.","PeriodicalId":14689,"journal":{"name":"Israel Journal of Plant Sciences","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2023-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46747335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-21DOI: 10.1163/22238980-bja10067
S. Ulupınar, Hasan Maral, S. Özbay, Cebrail Gençoğlu, Ayşegül TÜRK BAYDIR, E. Sebin, K. Altınkaynak, N. F. Kishalı, E. Şiktar, İ. İnce, Y. Buzdağlı
Natural herbal products are widely used by athletes to reduce the immune suppression caused by intensive exercise. This study aimed to determine the effects of the essential oils Origanum dubium, Origanum vulgare subsp hirtum, and Lavandula angustifolia, which belong to the Lamiaceae family, on immune cells in athletes. Thirty-four trained men (age: , height: , body mass: ) were randomly assigned to one of three experimental groups or the control group. Leukocytes and their subgroups were measured before and after a 14-day essential oil intervention and following an intensive exercise session. The main findings indicated that essential oils isolated from O. dubium (; ; ; increase), O. vulgare subsp hirtum (; ; ; increase), and L. angustifolia (; ; ; increase) increased lymphocyte counts, thus maintaining baseline levels despite decreased post-exercise lymphocyte counts. Additionally, the post-exercise lymphocyte count was lower than that after the intervention (; ) but higher than at baseline (; ) in the O. vulgare subsp hirtum group. The lower post-exercise lymphocyte counts of the control group compared with those after the 14-day period (; ) and baseline (; ) supported the experimental group results. However, our findings revealed that essential oil interventions had no significant effect on neutrophil counts, but the intensive exercise intervention increased the neutrophil counts in all groups. No significant change was identified in the other subgroup counts following the essential oil intervention or post exercise. Therefore, the results of this study indicate that these plants, especially O. vulgare subsp hirtum, can be used to alleviate the immune suppressive effects of intense exercise in athletes.
{"title":"Effect of Origanum dubium, Origanum vulgare subsp hirtum, and Lavandula angustifolia essential oils on immune cells in athletes","authors":"S. Ulupınar, Hasan Maral, S. Özbay, Cebrail Gençoğlu, Ayşegül TÜRK BAYDIR, E. Sebin, K. Altınkaynak, N. F. Kishalı, E. Şiktar, İ. İnce, Y. Buzdağlı","doi":"10.1163/22238980-bja10067","DOIUrl":"https://doi.org/10.1163/22238980-bja10067","url":null,"abstract":"\u0000Natural herbal products are widely used by athletes to reduce the immune suppression caused by intensive exercise. This study aimed to determine the effects of the essential oils Origanum dubium, Origanum vulgare subsp hirtum, and Lavandula angustifolia, which belong to the Lamiaceae family, on immune cells in athletes. Thirty-four trained men (age: , height: , body mass: ) were randomly assigned to one of three experimental groups or the control group. Leukocytes and their subgroups were measured before and after a 14-day essential oil intervention and following an intensive exercise session. The main findings indicated that essential oils isolated from O. dubium (; ; ; increase), O. vulgare subsp hirtum (; ; ; increase), and L. angustifolia (; ; ; increase) increased lymphocyte counts, thus maintaining baseline levels despite decreased post-exercise lymphocyte counts. Additionally, the post-exercise lymphocyte count was lower than that after the intervention (; ) but higher than at baseline (; ) in the O. vulgare subsp hirtum group. The lower post-exercise lymphocyte counts of the control group compared with those after the 14-day period (; ) and baseline (; ) supported the experimental group results. However, our findings revealed that essential oil interventions had no significant effect on neutrophil counts, but the intensive exercise intervention increased the neutrophil counts in all groups. No significant change was identified in the other subgroup counts following the essential oil intervention or post exercise. Therefore, the results of this study indicate that these plants, especially O. vulgare subsp hirtum, can be used to alleviate the immune suppressive effects of intense exercise in athletes.","PeriodicalId":14689,"journal":{"name":"Israel Journal of Plant Sciences","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2022-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44612655","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-21DOI: 10.1163/22238980-bja10001
Xu-Yang Liu, Wenxiao Ning, Zhen-Ting Wang
Desert shrubs are often planted to control wind erosion, land desertification, and desert expansion. Their motions of bending and vibration can absorb and disperse kinetic energy of wind, so as to protect the erodible surfaces close-by. According to continuum mechanics, the quantification of mechanical properties of shrubs is critical to understand their dynamic behaviors. In this study, the conventional tensile tests of six dominant desert shrub species’ stems mainly sampled in the Hobq Desert of China are performed. It is found that the tensile strength of Tamarix ramosissima and Hedysarum scoparium are larger than others, whereas Caragana korshinskii and Hippophae rhamnoides are more flexible. And then, it is theoretically and experimentally proved that the tensile strength and Young’s modulus of these desert shrubs both decrease with the increase of diameter.
{"title":"Tensile properties of six desert shrub species in Hobq Desert, China","authors":"Xu-Yang Liu, Wenxiao Ning, Zhen-Ting Wang","doi":"10.1163/22238980-bja10001","DOIUrl":"https://doi.org/10.1163/22238980-bja10001","url":null,"abstract":"\u0000Desert shrubs are often planted to control wind erosion, land desertification, and desert expansion. Their motions of bending and vibration can absorb and disperse kinetic energy of wind, so as to protect the erodible surfaces close-by. According to continuum mechanics, the quantification of mechanical properties of shrubs is critical to understand their dynamic behaviors. In this study, the conventional tensile tests of six dominant desert shrub species’ stems mainly sampled in the Hobq Desert of China are performed. It is found that the tensile strength of Tamarix ramosissima and Hedysarum scoparium are larger than others, whereas Caragana korshinskii and Hippophae rhamnoides are more flexible. And then, it is theoretically and experimentally proved that the tensile strength and Young’s modulus of these desert shrubs both decrease with the increase of diameter.","PeriodicalId":14689,"journal":{"name":"Israel Journal of Plant Sciences","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2022-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43134030","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-12DOI: 10.1163/22238980-bja10068
S. Sinha, Y. Kumar, Saurav Kumar, Mankesh Kumar, K. Rashmi, Sareeta Nahakpam, Satyendra Tomar, S. P. Singh
Marker-trait association study was undertaken to identify genomic regions linked to SSR markers with grain shape traits in rice. The association analysis identified 20 and 8 marker-trait association by GLM and MLM approaches, respectively at P values ≤ 0.005. GLM approach identified association for three traits on chromosome 1, 2, 4, 5, 6, 8, 9, 11 and 12 explaining 16.07% to 38.66% phenotypic variance whereas MLM approach detected association for four traits on chromosome 1, 4, 7, 8 and 11 explaining 15.51% to 27.24%. In GLM approach, the marker loci RM430_200 located on chromosome 5 showed highly significant association with test weight explained maximum phenotypic variance of 38.66%. While in MLM, marker RM320_250 located on chromosome 7 showed highly significant association with grain breadth accounted for 27.24% of phenotypic variance. The significant marker-trait association was lower in MLM compared to those in GLM. MLM method was proven to be useful in controlling false associations. The marker-trait association identified from the present study would be validated and utilized in marker assisted breeding programs of grain shape traits in rice.
{"title":"Marker-trait association analysis for grain shape traits in rice (Oryza sativa L.)","authors":"S. Sinha, Y. Kumar, Saurav Kumar, Mankesh Kumar, K. Rashmi, Sareeta Nahakpam, Satyendra Tomar, S. P. Singh","doi":"10.1163/22238980-bja10068","DOIUrl":"https://doi.org/10.1163/22238980-bja10068","url":null,"abstract":"\u0000Marker-trait association study was undertaken to identify genomic regions linked to SSR markers with grain shape traits in rice. The association analysis identified 20 and 8 marker-trait association by GLM and MLM approaches, respectively at P values ≤ 0.005. GLM approach identified association for three traits on chromosome 1, 2, 4, 5, 6, 8, 9, 11 and 12 explaining 16.07% to 38.66% phenotypic variance whereas MLM approach detected association for four traits on chromosome 1, 4, 7, 8 and 11 explaining 15.51% to 27.24%. In GLM approach, the marker loci RM430_200 located on chromosome 5 showed highly significant association with test weight explained maximum phenotypic variance of 38.66%. While in MLM, marker RM320_250 located on chromosome 7 showed highly significant association with grain breadth accounted for 27.24% of phenotypic variance. The significant marker-trait association was lower in MLM compared to those in GLM. MLM method was proven to be useful in controlling false associations. The marker-trait association identified from the present study would be validated and utilized in marker assisted breeding programs of grain shape traits in rice.","PeriodicalId":14689,"journal":{"name":"Israel Journal of Plant Sciences","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46869918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-07DOI: 10.1163/22238980-bja10069
Varun Kusampudi, Shilpa Kusampudi, Lakshmi B.S.
The present study screened different concentrations of Moringa oleifera (M. oleifera) leaf decoction (M. oleifera hot water extract-MWE) (100, 10, 1, and 0.1 g/L) to investigate their potential in increasing the yield of BPT 5204 rice variety. We aimed to analyze the effect of MWE on rice yield with different modes of treatment such as seed soaking, root treatment, and foliar spray. Rice seeds were soaked at different concentrations of MWE for 24 h before seeding. Plants grown from rice seeds soaked in 100 g/L MWE produced 6.6 tons/ha yield, whereas, roots of rice seedlings soaked for 4 h in varied MWE concentrations before transplantation and plants treated with 100 g/L MWE produced an yield of 6 tons/ha. In the last group, 45 day old rice plants were subjected to foliar spray with varying concentrations of MWE, where the foliar spray of rice plants with 100 g/L MWE showed a 6.5 tons/ha yield. As plants grown from rice seeds soaked in 100 g/L MWE produced a high yield, the leaves from these plants were analyzed to study the effect of MWE treatment on phenylalanine lyase and hydrogen peroxide (H2O2) and nitric oxide levels and genes involved in rice yield. The leaves of plants grown from rice seeds soaked in 100 g/L MWE showed increased H2O2 and SAM2 gene levels compared to control plants. This study reports the potential role of MWE as an environmentally safe, cost-effective and easy-to-use biostimulant for enhancing yield of rice.
{"title":"Seed priming using Moringa oleifera leaf decoction increases BPT 5204 rice yield","authors":"Varun Kusampudi, Shilpa Kusampudi, Lakshmi B.S.","doi":"10.1163/22238980-bja10069","DOIUrl":"https://doi.org/10.1163/22238980-bja10069","url":null,"abstract":"\u0000The present study screened different concentrations of Moringa oleifera (M. oleifera) leaf decoction (M. oleifera hot water extract-MWE) (100, 10, 1, and 0.1 g/L) to investigate their potential in increasing the yield of BPT 5204 rice variety. We aimed to analyze the effect of MWE on rice yield with different modes of treatment such as seed soaking, root treatment, and foliar spray. Rice seeds were soaked at different concentrations of MWE for 24 h before seeding. Plants grown from rice seeds soaked in 100 g/L MWE produced 6.6 tons/ha yield, whereas, roots of rice seedlings soaked for 4 h in varied MWE concentrations before transplantation and plants treated with 100 g/L MWE produced an yield of 6 tons/ha. In the last group, 45 day old rice plants were subjected to foliar spray with varying concentrations of MWE, where the foliar spray of rice plants with 100 g/L MWE showed a 6.5 tons/ha yield. As plants grown from rice seeds soaked in 100 g/L MWE produced a high yield, the leaves from these plants were analyzed to study the effect of MWE treatment on phenylalanine lyase and hydrogen peroxide (H2O2) and nitric oxide levels and genes involved in rice yield. The leaves of plants grown from rice seeds soaked in 100 g/L MWE showed increased H2O2 and SAM2 gene levels compared to control plants. This study reports the potential role of MWE as an environmentally safe, cost-effective and easy-to-use biostimulant for enhancing yield of rice.","PeriodicalId":14689,"journal":{"name":"Israel Journal of Plant Sciences","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2022-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49191308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-08DOI: 10.1163/22238980-bja10066
R. Einav, Á. Israel
In the last two decades, major taxonomic modifications have taken place on marine macroalgae with important changes at the genera level and discovery of cryptic species worldwide. These updates have an important role by serving as a baseline for future ecological interpretations related to on-going climate changes in the marine environment. Hence, this study aimed to elaborate a comprehensive and revised checklist of seaweeds and seagrasses reported in the literature over the years for Syrian Mediterranean Sea shorelines. It was found that the marine flora is quite diverse with a recounted total of 290 species of which 52 are Chlorophyta, 178 Rhodophyta and 60 Ochrophyta (Phaeophyceae). The Syrian shores also host five marine angiosperms (seagrasses), even though Zostera marinaLinnaeus has been unaccounted for in recent years. This study will further contribute to a better understanding of seaweed distribution within the Levant basin.
{"title":"An updated checklist of seaweeds and seagrasses from the Syrian Mediterranean Sea coast","authors":"R. Einav, Á. Israel","doi":"10.1163/22238980-bja10066","DOIUrl":"https://doi.org/10.1163/22238980-bja10066","url":null,"abstract":"\u0000 In the last two decades, major taxonomic modifications have taken place on marine macroalgae with important changes at the genera level and discovery of cryptic species worldwide. These updates have an important role by serving as a baseline for future ecological interpretations related to on-going climate changes in the marine environment. Hence, this study aimed to elaborate a comprehensive and revised checklist of seaweeds and seagrasses reported in the literature over the years for Syrian Mediterranean Sea shorelines. It was found that the marine flora is quite diverse with a recounted total of 290 species of which 52 are Chlorophyta, 178 Rhodophyta and 60 Ochrophyta (Phaeophyceae). The Syrian shores also host five marine angiosperms (seagrasses), even though Zostera marinaLinnaeus has been unaccounted for in recent years. This study will further contribute to a better understanding of seaweed distribution within the Levant basin.","PeriodicalId":14689,"journal":{"name":"Israel Journal of Plant Sciences","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2022-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45840434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-29DOI: 10.1163/22238980-bja10065
H. Van
Vietnam is one of the diverse regions for Araceae and possesses a large number of endemic Araceae species. Many Araceae species in Vietnam have been used as food and traditional medicines. Accordingly, species belonging to the genera, including Amorphohallus, Aglaonema, Arisaema, Alocasia, Colocasia, Homalomena, Lasia and Typhonium possessed many potential applications. Based on my knowledge and observations as well as the literatures on values of Araceae species, the present review aims to provide the information regarding the potential uses in medicine, food and ornamental plant industry of 27 Araceae species in Vietnam. In addition, the illustrative photos of all 27 Araceae species from this study are also given.
{"title":"Potential uses of some Araceae species in Vietnam","authors":"H. Van","doi":"10.1163/22238980-bja10065","DOIUrl":"https://doi.org/10.1163/22238980-bja10065","url":null,"abstract":"\u0000 Vietnam is one of the diverse regions for Araceae and possesses a large number of endemic Araceae species. Many Araceae species in Vietnam have been used as food and traditional medicines. Accordingly, species belonging to the genera, including Amorphohallus, Aglaonema, Arisaema, Alocasia, Colocasia, Homalomena, Lasia and Typhonium possessed many potential applications. Based on my knowledge and observations as well as the literatures on values of Araceae species, the present review aims to provide the information regarding the potential uses in medicine, food and ornamental plant industry of 27 Araceae species in Vietnam. In addition, the illustrative photos of all 27 Araceae species from this study are also given.","PeriodicalId":14689,"journal":{"name":"Israel Journal of Plant Sciences","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2022-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43145438","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-27DOI: 10.1163/22238980-bja10064
K. Anjani, R. Pasala, S. N. Sudhakara Babu
Genetic basis of heterosis has been exploited for yield improvement in safflower (Carthamus tinctorius L.) but little is known about physiological basis of heterosis for yield. The objective of this study was to quantify the physiological basis of heterosis for seed yield in safflower by examining 19 safflower hybrids and their parents for photosynthetic traits, and yield and its components. The results showed that heterosis for yield and its components was high and positive but was low and negative for photosynthetic traits in most of the hybrids studied. There were weak and non-significant relations between photosynthetic traits and yield and its components. Hybrids were more efficient in translocating photoassimilates to two major sink organs viz., number of seeds and number of capitula despite having low net photosynthesis than parents. Seed yield increase in safflower is more sink-than source-limited and was necessary through heterosis for sink organs. Heterosis breeding for larger sink size with parallel increase in effectiveness of sink organs in translocation of photo-assimilates is suggested for yield improvement in safflower.
{"title":"Role of heterosis for photosynthetic traits and sink organs in seed yield enhancement in safflower","authors":"K. Anjani, R. Pasala, S. N. Sudhakara Babu","doi":"10.1163/22238980-bja10064","DOIUrl":"https://doi.org/10.1163/22238980-bja10064","url":null,"abstract":"\u0000Genetic basis of heterosis has been exploited for yield improvement in safflower (Carthamus tinctorius L.) but little is known about physiological basis of heterosis for yield. The objective of this study was to quantify the physiological basis of heterosis for seed yield in safflower by examining 19 safflower hybrids and their parents for photosynthetic traits, and yield and its components. The results showed that heterosis for yield and its components was high and positive but was low and negative for photosynthetic traits in most of the hybrids studied. There were weak and non-significant relations between photosynthetic traits and yield and its components. Hybrids were more efficient in translocating photoassimilates to two major sink organs viz., number of seeds and number of capitula despite having low net photosynthesis than parents. Seed yield increase in safflower is more sink-than source-limited and was necessary through heterosis for sink organs. Heterosis breeding for larger sink size with parallel increase in effectiveness of sink organs in translocation of photo-assimilates is suggested for yield improvement in safflower.","PeriodicalId":14689,"journal":{"name":"Israel Journal of Plant Sciences","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2022-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43156417","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-03DOI: 10.1163/22238980-bja10059
Utpal Das, Ahok Hugar, Shantanu Das, S. Das, A. Kurubar
The present experiment was conducted to estimate the physico-chemical diversity of twelve Indian jujube cultivars. A sum of fifteen quantitative characters were explored and subjected to multivariate analyses. Significant variability was observed across the ber cultivars under study. Pearson’s correlation analysis identified days to first flower initiation, a higher number of flowers per cluster and a higher number of retained fruits per cluster which could be used as the basis of selection for identification of high yielding ber cultivars. The principal component analysis (PCA) estimates 60.2% of the total variability in ber cultivars is contributed by PC1 and PC2. The scatter plot of the first two components highlights the number of retained fruits per cluster, yield per tree, pulp weight, fruit width, stone weight and number of flowers per cluster as principal characters that played a significant role in the total variability. Further, PCA also helped to identify Mehrun, Manuki and Chhuhara as superior ber cultivars which performed well with respect to the PC1 and PC2. The Mahalanobis D2 statistics grouped all the twelve ber cultivars into five clusters indicating the existence of ample genetic diversity among the cultivars. Considering the inter-cluster distance along with cluster mean it could be concluded that the cultivars of cluster II and Cluster III may be utilized to estimate the combining ability for effective exploitation of heterosis or to isolate desirable transgressive segregants.
{"title":"Genetic diversity of ber (Ziziphus mauritiana L.) cultivars using physico-chemical characteristics","authors":"Utpal Das, Ahok Hugar, Shantanu Das, S. Das, A. Kurubar","doi":"10.1163/22238980-bja10059","DOIUrl":"https://doi.org/10.1163/22238980-bja10059","url":null,"abstract":"\u0000The present experiment was conducted to estimate the physico-chemical diversity of twelve Indian jujube cultivars. A sum of fifteen quantitative characters were explored and subjected to multivariate analyses. Significant variability was observed across the ber cultivars under study. Pearson’s correlation analysis identified days to first flower initiation, a higher number of flowers per cluster and a higher number of retained fruits per cluster which could be used as the basis of selection for identification of high yielding ber cultivars. The principal component analysis (PCA) estimates 60.2% of the total variability in ber cultivars is contributed by PC1 and PC2. The scatter plot of the first two components highlights the number of retained fruits per cluster, yield per tree, pulp weight, fruit width, stone weight and number of flowers per cluster as principal characters that played a significant role in the total variability. Further, PCA also helped to identify Mehrun, Manuki and Chhuhara as superior ber cultivars which performed well with respect to the PC1 and PC2. The Mahalanobis D2 statistics grouped all the twelve ber cultivars into five clusters indicating the existence of ample genetic diversity among the cultivars. Considering the inter-cluster distance along with cluster mean it could be concluded that the cultivars of cluster II and Cluster III may be utilized to estimate the combining ability for effective exploitation of heterosis or to isolate desirable transgressive segregants.","PeriodicalId":14689,"journal":{"name":"Israel Journal of Plant Sciences","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2022-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46755631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-01DOI: 10.1163/22238980-bja10063
A. Jha, R. Padbhushan, Arun Kumar
Azolla is a small freshwater fern reproduces sexually and asexually (by splitting). The spores’ formation through sexual reproduction in the azolla species is influenced by climatic condition. Keeping this fact in view, the present study was conducted with an aim to study the impact of temperature on the sporocarp formation and also developing storage techniques for sexual propagation in the azolla species. The study showed that the sporulation in Azolla pinnata was more sensitive to increase in the temperature than Azolla microphylla. Azolla pinnata did not sporulate on rising maximum temperature; however sporulation in Azolla microphylla was delayed by one month due to rise in the temperature during second year compared to the first year. Conversion of the freshly collected sporocarps into Azolla microphylla plants were decreased by 4.2–9.3% on increasing minimum and maximum temperatures by 5°C and 8°C, respectively and conversion of the one month old sporocarps into plants was decreased by 1.8–8.7% on rising minimum and maximum temperatures. On storing sporocarps in the refrigerator resulted in higher germination percentage than stored at room temperature. Conversion of freshly collected sporocarps into Azolla plants increased on storage of the sporocarps mixing with soil (1:15) in the refrigerator than at room temperature. Germination of one month old Azolla microphylla sporocarps on storage in refrigerator after mixing with soil decreased during second year compared to first year. Therefore, in a controlled environment, azolla may be encouraged to grow sporocarps for exploiting full potential of azolla for eco-friendly agricultural and livestock management.
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