Pub Date : 2023-02-01DOI: 10.3844/ojbsci.2023.142.148
N. Awang, Nur Hidayah Hasrin, N. Kamaludin, Sharifah Nurafizah Syed Annuar, Nur Rasyiqin Rasli, A. Hamid
{"title":"Use of Novel Triphenyltin (IV) Dithiocarbamate Compounds in Assessing the Cytotoxicity and Mode of Cell Death of Acute Lymphoblastic Leukemia Cell Lines, CCRF CEM (CCL-119)","authors":"N. Awang, Nur Hidayah Hasrin, N. Kamaludin, Sharifah Nurafizah Syed Annuar, Nur Rasyiqin Rasli, A. Hamid","doi":"10.3844/ojbsci.2023.142.148","DOIUrl":"https://doi.org/10.3844/ojbsci.2023.142.148","url":null,"abstract":"","PeriodicalId":35048,"journal":{"name":"OnLine Journal of Biological Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48880414","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 : 2023-02-01DOI: 10.3844/ojbsci.2023.243.250
N. Mukhamadiyev, A. Chadinova, N. Sultanova, G. Mengdibayeva, K. Anuarbekov
: The paper describes the monitoring of phytosanitary conditions in different regions of the Almaty region (Kazakhstan) and demonstrates the large population of cruciferous fleas ( Phyllotreta cruciferae ) on rapeseed plants, which reaches 7-9 spec./m 2 , exceeding the economic injury level (3-5 spec./m 2 ). The disease is observed to spread on wheat and barley seeds. Proceeding from this, the study aims to develop effective protection measures against cruciferous fleas and to ecologize agricultural technologies using safe techniques and means of protection. The study uses methods of registration when monitoring the spread of pests and determining the effectiveness of the methods and tools applied. It is demonstrated that the treatment of wheat seeds with a protective and stimulating mixture using the preparation of bisolbisan 1 l/t + extrasol 1 l/t raised the intensity of crop growth to 94.2% compared to 70.9% in the control sample. High biological efficacy is noted from the use of actarophyte 1 l/ha mixed with extrasol against cruciferous fleas, the population of which after treatment is only 1 spec./m 2 against 7.8 spec./m 2 in the control case. The study also analyzes the results of releasing the Trichogramma ovipositor (Trichogramma) in the amount of 350 g/ha, Habrobracon ( Bracon hebetor Sa y) at a rate of 500 spec./ha and green lacewings (Chrysopidae) at a rate of 1,500 eggs/ha to combat the cotton bollworm (Helicoverpa armigera ) and the European corn borer ( Ostrinia nubilalis Hbn.). This first known treatment of rape crops using a drone against cruciferous fleas achieved a biological efficiency of 95.8-96.2%.
{"title":"Development of Environmentally Friendly Protection Measures Against Pests and Diseases","authors":"N. Mukhamadiyev, A. Chadinova, N. Sultanova, G. Mengdibayeva, K. Anuarbekov","doi":"10.3844/ojbsci.2023.243.250","DOIUrl":"https://doi.org/10.3844/ojbsci.2023.243.250","url":null,"abstract":": The paper describes the monitoring of phytosanitary conditions in different regions of the Almaty region (Kazakhstan) and demonstrates the large population of cruciferous fleas ( Phyllotreta cruciferae ) on rapeseed plants, which reaches 7-9 spec./m 2 , exceeding the economic injury level (3-5 spec./m 2 ). The disease is observed to spread on wheat and barley seeds. Proceeding from this, the study aims to develop effective protection measures against cruciferous fleas and to ecologize agricultural technologies using safe techniques and means of protection. The study uses methods of registration when monitoring the spread of pests and determining the effectiveness of the methods and tools applied. It is demonstrated that the treatment of wheat seeds with a protective and stimulating mixture using the preparation of bisolbisan 1 l/t + extrasol 1 l/t raised the intensity of crop growth to 94.2% compared to 70.9% in the control sample. High biological efficacy is noted from the use of actarophyte 1 l/ha mixed with extrasol against cruciferous fleas, the population of which after treatment is only 1 spec./m 2 against 7.8 spec./m 2 in the control case. The study also analyzes the results of releasing the Trichogramma ovipositor (Trichogramma) in the amount of 350 g/ha, Habrobracon ( Bracon hebetor Sa y) at a rate of 500 spec./ha and green lacewings (Chrysopidae) at a rate of 1,500 eggs/ha to combat the cotton bollworm (Helicoverpa armigera ) and the European corn borer ( Ostrinia nubilalis Hbn.). This first known treatment of rape crops using a drone against cruciferous fleas achieved a biological efficiency of 95.8-96.2%.","PeriodicalId":35048,"journal":{"name":"OnLine Journal of Biological Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49418368","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 : 2023-02-01DOI: 10.3844/ojbsci.2023.226.235
A. Bissembayev, A. Shamshidin, Zhanat Maratovich Kasenov, Nurgali Risspayevich Bissekenov, A. E. Chindaliyev, Y. Yuldashbayev, D. Baimukanov
: Currently, the assessment of the breeding value of livestock provides for new approaches to determine the genetic qualities of animals that sustainably transmit to offspring. This is achieved by using the phenotypic data of the ancestors, the closest lateral relatives, as well as the animals themselves and their descendants, which, according to all canons, is facilitated by the so-called BLUP methodology. The purpose of the study is to establish the estimated breeding values of Auliekol cattle by productive indicators. For the Auliekol cattle breed, the estimated breeding values in terms of live weight at birth varied in the range: The first year from -3.47 to ++9.03; the second year -5.18 to +12.60; the third year -5.22 to +12.52; in 2021-5.18 to +12.52. The percentile distribution of the calculated EBV of the live weight of the Auliekol cattle breed at weaning in 2018 varied in the range from -19.76 to +53.63, in 2019-23.88 to +63.65, in 2020 -24.33 to +63.01, in 2021 -23.58 to +62.53. The EBV in terms of live weight at one year of age in 2018 varied from -39.37 to +71.86, in 2019 -34.44 to +90.83, in 2020 -33.34 to +90.24, in 2021 -34.21 to +90.81. The estimated breeding value in terms of live weight for adult animals in 2018 ranged from -43.11 to +57.72, in 2019 -97.40 to +105.45, in 2020 -95.57 to +106.99, in 2021 -176.40 to +110.53. The EBV for the indicator of the milking capacity of mothers of the Auliekol breed in 2018 ranged widely from -28.89 to +65.89, in 2019 -26.18 to +52.71, in 2020 -24.01 to +51.55, in 2021 -23.67 to +52.75. For the Auliekol cattle breed, the EBV in terms of the average daily gain from birth to 12 months of age is in the range of the minimum indicator from -198.29 to -242.68, the maximum indicator from +235.88 to +348.71 .
{"title":"The Level of Breeding Value of Cattle of the Auliekol Breed, Calculated by the Blup Method","authors":"A. Bissembayev, A. Shamshidin, Zhanat Maratovich Kasenov, Nurgali Risspayevich Bissekenov, A. E. Chindaliyev, Y. Yuldashbayev, D. Baimukanov","doi":"10.3844/ojbsci.2023.226.235","DOIUrl":"https://doi.org/10.3844/ojbsci.2023.226.235","url":null,"abstract":": Currently, the assessment of the breeding value of livestock provides for new approaches to determine the genetic qualities of animals that sustainably transmit to offspring. This is achieved by using the phenotypic data of the ancestors, the closest lateral relatives, as well as the animals themselves and their descendants, which, according to all canons, is facilitated by the so-called BLUP methodology. The purpose of the study is to establish the estimated breeding values of Auliekol cattle by productive indicators. For the Auliekol cattle breed, the estimated breeding values in terms of live weight at birth varied in the range: The first year from -3.47 to ++9.03; the second year -5.18 to +12.60; the third year -5.22 to +12.52; in 2021-5.18 to +12.52. The percentile distribution of the calculated EBV of the live weight of the Auliekol cattle breed at weaning in 2018 varied in the range from -19.76 to +53.63, in 2019-23.88 to +63.65, in 2020 -24.33 to +63.01, in 2021 -23.58 to +62.53. The EBV in terms of live weight at one year of age in 2018 varied from -39.37 to +71.86, in 2019 -34.44 to +90.83, in 2020 -33.34 to +90.24, in 2021 -34.21 to +90.81. The estimated breeding value in terms of live weight for adult animals in 2018 ranged from -43.11 to +57.72, in 2019 -97.40 to +105.45, in 2020 -95.57 to +106.99, in 2021 -176.40 to +110.53. The EBV for the indicator of the milking capacity of mothers of the Auliekol breed in 2018 ranged widely from -28.89 to +65.89, in 2019 -26.18 to +52.71, in 2020 -24.01 to +51.55, in 2021 -23.67 to +52.75. For the Auliekol cattle breed, the EBV in terms of the average daily gain from birth to 12 months of age is in the range of the minimum indicator from -198.29 to -242.68, the maximum indicator from +235.88 to +348.71 .","PeriodicalId":35048,"journal":{"name":"OnLine Journal of Biological Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44918289","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 : 2023-02-01DOI: 10.3844/ojbsci.2023.219.225
V. Gómez, Mauricio Molina-Roco, Elder Chichipe, E. Rojas
{"title":"Trace Elements in Fertilizers Used in Peru","authors":"V. Gómez, Mauricio Molina-Roco, Elder Chichipe, E. Rojas","doi":"10.3844/ojbsci.2023.219.225","DOIUrl":"https://doi.org/10.3844/ojbsci.2023.219.225","url":null,"abstract":"","PeriodicalId":35048,"journal":{"name":"OnLine Journal of Biological Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45550421","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 : 2023-02-01DOI: 10.3844/ojbsci.2023.124.132
R. Ualiyeva
{"title":"Functional Role of Vitelline Glands and Mehlis Gland in the Process of Resistant Egg Shell Formation in Trematodes","authors":"R. Ualiyeva","doi":"10.3844/ojbsci.2023.124.132","DOIUrl":"https://doi.org/10.3844/ojbsci.2023.124.132","url":null,"abstract":"","PeriodicalId":35048,"journal":{"name":"OnLine Journal of Biological Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44939194","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 : 2023-02-01DOI: 10.3844/ojbsci.2023.133.141
Z. Titanov, N. Kazhgaliyev, Talgat Kulmagambetov, Saltanat Amantay, D. Arney
: The article presents research materials on the adaptive and productive qualities of the third-generation heifers of Aberdeen Angus cattle in the conditions of the "Zholdasbay-agro" farming enterprise of the North Kazakhstan region. The object of study was the growth and development of third-generation heifers obtained by Canadian and European selection of the Aberdeen-Angus breed. According to the results of the study and the summary of clinical signs, the frequency of antenatal hypotrophy in newborn calves of the Aberdeen-Angus breed of Canadian selection was 12.3%, European 8.7%. The research results showed that the relative growth rate in European calves up to 6 months is higher than in peers of Canadian breeding, but in the period from 6 to 8 months, calves obtained from cows of the second generation of Canadian breeding are superior to calves of European selection. The established tendency of a lower growth rate of heifers obtained from cows of Canadian breeding may be associated with an increase in the tension of regulatory mechanisms that ensure the adaptation of animals to new environmental conditions
{"title":"Adaptation of the Third Generation Aberdeen Angus Heifers in the North Kazakhstan Region","authors":"Z. Titanov, N. Kazhgaliyev, Talgat Kulmagambetov, Saltanat Amantay, D. Arney","doi":"10.3844/ojbsci.2023.133.141","DOIUrl":"https://doi.org/10.3844/ojbsci.2023.133.141","url":null,"abstract":": The article presents research materials on the adaptive and productive qualities of the third-generation heifers of Aberdeen Angus cattle in the conditions of the \"Zholdasbay-agro\" farming enterprise of the North Kazakhstan region. The object of study was the growth and development of third-generation heifers obtained by Canadian and European selection of the Aberdeen-Angus breed. According to the results of the study and the summary of clinical signs, the frequency of antenatal hypotrophy in newborn calves of the Aberdeen-Angus breed of Canadian selection was 12.3%, European 8.7%. The research results showed that the relative growth rate in European calves up to 6 months is higher than in peers of Canadian breeding, but in the period from 6 to 8 months, calves obtained from cows of the second generation of Canadian breeding are superior to calves of European selection. The established tendency of a lower growth rate of heifers obtained from cows of Canadian breeding may be associated with an increase in the tension of regulatory mechanisms that ensure the adaptation of animals to new environmental conditions","PeriodicalId":35048,"journal":{"name":"OnLine Journal of Biological Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49549500","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 : 2023-01-01DOI: 10.3844/ojbsci.2023.81.86
M. Kargaeyeva, Khamit Ablgazinovich Aubakirov, S. D. Mongush, Kairat Zhaleluly Iskhan, A. M. Davletova, A. D. Baimukanov
{"title":"Meat Productivity of Kazakh and Tuva Horses","authors":"M. Kargaeyeva, Khamit Ablgazinovich Aubakirov, S. D. Mongush, Kairat Zhaleluly Iskhan, A. M. Davletova, A. D. Baimukanov","doi":"10.3844/ojbsci.2023.81.86","DOIUrl":"https://doi.org/10.3844/ojbsci.2023.81.86","url":null,"abstract":"","PeriodicalId":35048,"journal":{"name":"OnLine Journal of Biological Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46787885","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 : 2023-01-01DOI: 10.3844/ojbsci.2023.103.108
A. F. Hasan, Azhar Azher Alankooshi, Alaa Saadi Abbood, Ali Ghazi Dulimi, Hiba Mohammed Al-Khuzaay, Eslam Ahmed Elsaedy, E. Tousson
{"title":"Impact of B-Glucan Against Ehrlich Ascites Carcinoma Induced Renal Toxicity in Mice","authors":"A. F. Hasan, Azhar Azher Alankooshi, Alaa Saadi Abbood, Ali Ghazi Dulimi, Hiba Mohammed Al-Khuzaay, Eslam Ahmed Elsaedy, E. Tousson","doi":"10.3844/ojbsci.2023.103.108","DOIUrl":"https://doi.org/10.3844/ojbsci.2023.103.108","url":null,"abstract":"","PeriodicalId":35048,"journal":{"name":"OnLine Journal of Biological Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48430942","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 : 2023-01-01DOI: 10.3844/ojbsci.2023.109.116
R. I. Kudiyarov, E. B. Dyamurshayeva, G. Sauytbayeva, Dyamurshayeva Galina Evgenievna, Mariya Abdikhalikovna Taiteli, Zhaxybay Tuleubayev
: This scientific work is a continuation of the research on the effectiveness of the use of soilless technology for growing tomatoes in the PreAral Sea region, conducted on the basis of the greenhouse of the Korkyt Ata Kyzylorda University. In previous studies, the technological parameters of culture management were separately studied and their optimal values for regional conditions were established, some of which differed from the parameters in the previously used technology proposed by OLDS College (Canada). Based on the results obtained, an improved technology of soilless growth the tomato was developed, the study of the effectiveness of which was the purpose of these studies. The studies were carried out on hybrid tomatoes Lilos F1 (RZ Netherlands), which was grown on a composite substrate of sawdust and rice husk in conditions of extended turnover. The research results showed that the use of improved technology of groundless tomato cultivation contributed to the creation of the most favorable conditions for the growth and development of tomato hybrid plants, increased productivity and product quality. The period before flowering was reduced by 4 days, and before fruiting-by 6 days, the first flower cluster was laid earlier (by 1 leaf), and the first three clusters formed a larger number of fruits (by 1.6). The early yield of tomatoes increased by 2.12 kg/m 2 , and the total-by 3.74 kg/m 2 . Due to the formation of larger fruits, the average weight of which was higher by 14.7 g, the yield of standard products increased by 2.4%. The qualitative characteristics of tomato fruits did not show significant differences, and their taste qualities remained at a high level.
{"title":"Performance Indicators of the Improved Technology of Soilless Growth the Tomato in the PreAral Sea Region","authors":"R. I. Kudiyarov, E. B. Dyamurshayeva, G. Sauytbayeva, Dyamurshayeva Galina Evgenievna, Mariya Abdikhalikovna Taiteli, Zhaxybay Tuleubayev","doi":"10.3844/ojbsci.2023.109.116","DOIUrl":"https://doi.org/10.3844/ojbsci.2023.109.116","url":null,"abstract":": This scientific work is a continuation of the research on the effectiveness of the use of soilless technology for growing tomatoes in the PreAral Sea region, conducted on the basis of the greenhouse of the Korkyt Ata Kyzylorda University. In previous studies, the technological parameters of culture management were separately studied and their optimal values for regional conditions were established, some of which differed from the parameters in the previously used technology proposed by OLDS College (Canada). Based on the results obtained, an improved technology of soilless growth the tomato was developed, the study of the effectiveness of which was the purpose of these studies. The studies were carried out on hybrid tomatoes Lilos F1 (RZ Netherlands), which was grown on a composite substrate of sawdust and rice husk in conditions of extended turnover. The research results showed that the use of improved technology of groundless tomato cultivation contributed to the creation of the most favorable conditions for the growth and development of tomato hybrid plants, increased productivity and product quality. The period before flowering was reduced by 4 days, and before fruiting-by 6 days, the first flower cluster was laid earlier (by 1 leaf), and the first three clusters formed a larger number of fruits (by 1.6). The early yield of tomatoes increased by 2.12 kg/m 2 , and the total-by 3.74 kg/m 2 . Due to the formation of larger fruits, the average weight of which was higher by 14.7 g, the yield of standard products increased by 2.4%. The qualitative characteristics of tomato fruits did not show significant differences, and their taste qualities remained at a high level.","PeriodicalId":35048,"journal":{"name":"OnLine Journal of Biological Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44808938","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 : 2023-01-01DOI: 10.3844/ojbsci.2023.117.123
Zh.K. Rakymbekov, K. Abayeva, D. Dosmanbetov, R. Akhmetov, Murat Shynybekov
: This study evaluates the relationship between laboratory germination and biometric parameters of aglets of the critically endangered birch tree species Betula jarmolenkoana Golosk (Yarmolenko birch). The Yarmolenko birch is a very rare, narrowly endemic species, growing at an altitude of 1,900-2,100 m above sea level and only in the basins of three rivers (Kakpak, Bayynkol, and Tekes) in the Almaty region of Kazakhstan. Therefore, research is currently needed to increase the stability of birch forests and determine the optimal ways to preserve them. The study aimed to establish the nature of the relationship between laboratory germination and biometric parameters of birch aglets. To conduct surveys on the Yarmolenko birch forests, six sampling areas were selected, and five trees of close age (VI-VII age classes) were selected and marked in each sampling area. At the end of summer (August), after the seeds had reached physiological maturity (yellowing of the aglet core), 100 pieces of aglets were collected from trees at a height of 2.0 to 2.5 m and weighed on electronic scales. The data obtained were processed using methods of variational statistics, and the average values, coefficient of variability, and standard error of the average value were calculated. Student's t-test was used to compare features between the areas. The relationship between biometric parameters and seed germination was identified and statistically substantiated. According to three-year observations, in some areas of the forest, especially in areas with young and medium-aged plants, the morphometric parameters of aglets were not the same and did not repeat in different years. This was due to the weather conditions of the year of aglet formation and the growth and development of seeds.
{"title":"Relationship between Laboratory Germination and Biometric Parameters of Betula jarmolenkoana Golosk. Aglets","authors":"Zh.K. Rakymbekov, K. Abayeva, D. Dosmanbetov, R. Akhmetov, Murat Shynybekov","doi":"10.3844/ojbsci.2023.117.123","DOIUrl":"https://doi.org/10.3844/ojbsci.2023.117.123","url":null,"abstract":": This study evaluates the relationship between laboratory germination and biometric parameters of aglets of the critically endangered birch tree species Betula jarmolenkoana Golosk (Yarmolenko birch). The Yarmolenko birch is a very rare, narrowly endemic species, growing at an altitude of 1,900-2,100 m above sea level and only in the basins of three rivers (Kakpak, Bayynkol, and Tekes) in the Almaty region of Kazakhstan. Therefore, research is currently needed to increase the stability of birch forests and determine the optimal ways to preserve them. The study aimed to establish the nature of the relationship between laboratory germination and biometric parameters of birch aglets. To conduct surveys on the Yarmolenko birch forests, six sampling areas were selected, and five trees of close age (VI-VII age classes) were selected and marked in each sampling area. At the end of summer (August), after the seeds had reached physiological maturity (yellowing of the aglet core), 100 pieces of aglets were collected from trees at a height of 2.0 to 2.5 m and weighed on electronic scales. The data obtained were processed using methods of variational statistics, and the average values, coefficient of variability, and standard error of the average value were calculated. Student's t-test was used to compare features between the areas. The relationship between biometric parameters and seed germination was identified and statistically substantiated. According to three-year observations, in some areas of the forest, especially in areas with young and medium-aged plants, the morphometric parameters of aglets were not the same and did not repeat in different years. This was due to the weather conditions of the year of aglet formation and the growth and development of seeds.","PeriodicalId":35048,"journal":{"name":"OnLine Journal of Biological Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47147995","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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