Bangladesh Journal of Botany最新文献_第7页

Influencing factors analysis of corn price fluctuation in shaanxi province, CHINA 陕西省玉米价格波动影响因素分析

IF 0.3 4区生物学

Bangladesh Journal of Botany Pub Date : 2023-08-31 DOI: 10.3329/bjb.v52i2.68231

Lifeng Guo, Jianglong Shen, Youhui Li, Jiao Ai

{"title":"Influencing factors analysis of corn price fluctuation in shaanxi province, CHINA","authors":"Lifeng Guo, Jianglong Shen, Youhui Li, Jiao Ai","doi":"10.3329/bjb.v52i2.68231","DOIUrl":"https://doi.org/10.3329/bjb.v52i2.68231","url":null,"abstract":"Corn is one of the most important grain crops in China, and also in Shaanxi Province. In order to master the changing law of corn market, realize reasonable regulation and control, and promote the stable development of the market, it is necessary to conduct in-depth research on the influencing factors of corn price fluctuation in Shaanxi Province. Based on the data of Shaanxi Province from 2000 to 2021, in the present study, the main factors affecting the price fluctuation in Shaanxi Province was explored by using factor analysis method. Eight indexes including corn yield, production cost, disaster-affected area, disposable income of rural residents, disposable income of urban residents, corn demand, wheat price index and consumer price were selected as factors affecting corn price fluctuation. Results showed that the disaster area and corn demand were the main factors affecting the corn price fluctuation in Shaanxi Province, and the disposable income of urban and rural residents had little impact on the corn price fluctuation. Governments and industry groups can therefore take preventive measures to limit the impact of major climate events on corn markets and economies. It also assesses the appropriate proportion of corn used for feed and energy production to ensure adequate supply and stable prices.\u0000Bangladesh J. Bot. 52(2): 607-612, 2023 (June) Special","PeriodicalId":8703,"journal":{"name":"Bangladesh Journal of Botany","volume":"1 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69453775","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}

引用次数: 0

Effects of microbial-phytoremediation on plant diversity and soil physico-chemical properties in northern shaanxi coal mining area, china 微生物-植物修复对陕北矿区植物多样性和土壤理化性质的影响

IF 0.3 4区生物学

Bangladesh Journal of Botany Pub Date : 2023-08-31 DOI: 10.3329/bjb.v52i2.68290

Shenglan Ye, Yang Zhang, Xiaoxiao Shu

{"title":"Effects of microbial-phytoremediation on plant diversity and soil physico-chemical properties in northern shaanxi coal mining area, china","authors":"Shenglan Ye, Yang Zhang, Xiaoxiao Shu","doi":"10.3329/bjb.v52i2.68290","DOIUrl":"https://doi.org/10.3329/bjb.v52i2.68290","url":null,"abstract":"Effects of different microorganisms-plant combination on the diversity of plant and soil physics in the mining area were studied. Results showed that the number of species, total number and coverage of Soil Remediation + Vetiver + Sea-buckthorn (AH) treatment were 13, 298 and 89.8%, respectively, which were significantly higher than other treatments. Soil water content in different treatments was the highest at 20 cm. The pH value of the different treatments decreased significantly, and the pH value of AH was the lowest (7.14). The total nitrogen (TN) content of GH and GS were the highest, which were 0.54 and 0.51 g/kg, respectively. The contents of phosphorus (P) and available potassium (K) were the highest in AX treatment, reaching 57.1 and 194 mg/kg. Treatment with different inoculants significantly increased soil enzyme activity. The urease activity of GH was the highest, which was 0.872 mg/g. The sucrase activity and catalase content of AH and AX were the highest, which were 8.99, 8.53 mg/g and 2.145 ml/g, 1.872 ml/g, respectively. The phosphatase activities of QH and AH treatments were the highest at 234 and 229 mg/g, which were 6 times and 5.9 times than that of CK. Comprehensive analysis showed that microbial inoculum + mixed seeding mode can effectively improve soil fertility and enzyme activity, and the effect of AH was the best.\u0000Bangladesh J. Bot. 52(2): 495-502, 2023 (June) Special","PeriodicalId":8703,"journal":{"name":"Bangladesh Journal of Botany","volume":"1 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69453781","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}

引用次数: 0

Changes and relationship of climate and late-rice yield in chenzhou city of south hunan province of CHINA 湘南郴州市气候变化与晚稻产量的关系

4区生物学

Bangladesh Journal of Botany Pub Date : 2023-08-31 DOI: 10.3329/bjb.v52i20.68251

Yansong Xiao, Sheng Li, Qian Zhou, Lijuan Li, Zhihong He, Qi Hu, Zhipeng Tan, Fengying Ma, Jiuwei Hu, Yiyi Xiao, Rujing Deng

{"title":"Changes and relationship of climate and late-rice yield in chenzhou city of south hunan province of CHINA","authors":"Yansong Xiao, Sheng Li, Qian Zhou, Lijuan Li, Zhihong He, Qi Hu, Zhipeng Tan, Fengying Ma, Jiuwei Hu, Yiyi Xiao, Rujing Deng","doi":"10.3329/bjb.v52i20.68251","DOIUrl":"https://doi.org/10.3329/bjb.v52i20.68251","url":null,"abstract":"The changes and relationship of climate parameters and late-rice yield per unit area during the growth periods of late-rice from 2010 to 2019 were quantitatively analyzed in order to provide scientific guidance for countermeasures against climate change and sustainable production of late-rice. The climate parameters include cumulative daily sunshine hours (S), mean daily temperature (T), cumulative daily precipitation (P), mean daily relative humidity (H), daily highest and lowest temperatures (Th and Tl), days of high temperatures (DT ≥ 30℃ and DTh ≥ 35℃) and low temperature (DTl < 15℃). Results showed that: (i) Late-rice yield was significantly increased quadratically from 5621.33 kg hm2 in 2010 to 6333.65 kg hm2 in 2019 with a mean of 5959.2 kg hm2. (ii ) According to the suitable climate conditions for growth of late-rice, T and P were low but H was suitable in the whole field growth period of late-rice, T was suitable in the transplanting-tillering stage, but was low in the booting-heading and milk ripening-mature stage. DT ≥ 30℃, DTh ≥ 35℃ and DTl < 15℃ was meanly 7.7, 7.5 and 6.4 d, respectively, which showed possible occurrence of the damages to late-rice due to high and low temperatures. iii) Only T, Th and Tl in the booting-heading stage showed significant positive correlation with year, and the optimal regression models were in quadratic and exponential types. The climate parameters of S, T and Th in the boot-heading stage were significantly positively correlated with late-rice yield, and the optimal regression models were all in quadratic types. Daily highest temperature (Th) affected late-rice yield most (61.04%), followed by T (36.50%), and S affected least (2.46%). Considering the current conflict in the field planting periods between tobacco and late-rice, late rice varieties needs to be bred with short growth period and high tolerance to both high and low temperatures. Bangladesh J. Bot. 52(2): 639-647, 2023 (June) Special","PeriodicalId":8703,"journal":{"name":"Bangladesh Journal of Botany","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135946013","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}

引用次数: 0

Carbon storage in arbor forests under the background of carbon neutrality 碳中和背景下乔木林碳储量研究

4区生物学

Bangladesh Journal of Botany Pub Date : 2023-08-31 DOI: 10.3329/bjb.v52i20.68286

Li Qi, Yanan Li

引用次数: 0

Effects of gully land consolidation on soil organic carbon, soil enzymes and its influences on maize yield 沟壑区整治对土壤有机碳、土壤酶的影响及其对玉米产量的影响

4区生物学

Bangladesh Journal of Botany Pub Date : 2023-08-31 DOI: 10.3329/bjb.v52i20.68194

None Panpan Zhang, None Liheng Xia, None Na Lei

{"title":"Effects of gully land consolidation on soil organic carbon, soil enzymes and its influences on maize yield","authors":"None Panpan Zhang, None Liheng Xia, None Na Lei","doi":"10.3329/bjb.v52i20.68194","DOIUrl":"https://doi.org/10.3329/bjb.v52i20.68194","url":null,"abstract":"The change characteristics of 5 indicators of soil organic carbon (SOC) content, dehydrogenase activity, protease activity, catalase activity, and maize yield were analyzed at 0a before and 3, 4, and 8 years after remediation in the study area. Results showed that the coefficient of variation (CV) of each index in the study area was generally small, the variation degree of soil organic carbon content was the highest, and the variation degree of catalase activity and maize yield was the least. After the implementation of the gully land consolidation, the CV of each index in the gully showed a decreasing trend, and the distribution of each index in the gully tended to be uniform. With the increase of remediation years, SOC content, soil enzyme activity and maize first yield showed a trend of decrease and then increase, and the change trend of each index was slightly different at gully head, the middle of gully and the gully outlet, the change is significant. At the gully head, the SOC content did not return to the level of 0a after 8a of remediation, and the other indicators returned to the level of 0a or higher than that of 0a. At the gully head, at p < 0.05 level, maize yield showed a very significant positive correlation with catalase activity, and a negative correlation with protease activity. In the middle of gully, there was a significant positive correlation with organic carbon content, soil protease and catalase activities, and it was negatively correlated with dehydrogenase activity but not significantly. At the gully outlet, there was a very significant positive correlation with protease activity. Bangladesh J. Bot. 52(2): 459-466, 2023 (June) (Special)","PeriodicalId":8703,"journal":{"name":"Bangladesh Journal of Botany","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135946361","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}

引用次数: 0

Distribution characteristics of selenium and heavy metal elements in soil-crop system in ankang, shaanxi, china 安康土壤-作物系统中硒和重金属元素的分布特征

4区生物学

Bangladesh Journal of Botany Pub Date : 2023-08-31 DOI: 10.3329/bjb.v52i20.68252

Aorui Li, Jiping Chen, Chi Wang, Zhimin Zhang, Hui Wang, Huawei Ji, Tianyu Sun, Zhaohua Zeng, Yaning He

{"title":"Distribution characteristics of selenium and heavy metal elements in soil-crop system in ankang, shaanxi, china","authors":"Aorui Li, Jiping Chen, Chi Wang, Zhimin Zhang, Hui Wang, Huawei Ji, Tianyu Sun, Zhaohua Zeng, Yaning He","doi":"10.3329/bjb.v52i20.68252","DOIUrl":"https://doi.org/10.3329/bjb.v52i20.68252","url":null,"abstract":"A total of 229 groups of root vegetables, rice, corn and their root soils were collected in Ankang, Shaanxi, to analyze the characteristics of element migration and transformation in crops and root soil, to compare the migration and enrichment capabilities of various elements in different crops, to explain the characteristics of root soil pH and element correlation, and provide a theoretical basis for agricultural development. Results showed that there were differences in the ability of crops to accumulate various elements in the soil. The absorption capacity of Se, Cd and Zn elements was strong, while the bioaccumulation ability of As, Pb and Cr elements was weak. The contents of Cr, As and Hg were the highest in rice, which were significantly higher than those in root vegetables and corn. The contents of Cd, Cu and Pb in root vegetables were the highest, significantly higher than those in rice and corn. The content of various elements in crops and root soil had a different intensity correlation. Generally speaking, the content of various elements in crops increased with the increase of root soil element content to a certain extent. There was a negative correlation between pH and soil elements, and there was a significant positive correlation between the elements in the root soil of different crops. Bangladesh J. Bot. 52(2): 649-657, 2023 (June) Special","PeriodicalId":8703,"journal":{"name":"Bangladesh Journal of Botany","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135946362","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}

引用次数: 0

Changes and relationship of climate and late-rice yield in chenzhou city of south hunan province of CHINA 湘南郴州市气候变化与晚稻产量的关系

IF 0.3 4区生物学

Bangladesh Journal of Botany Pub Date : 2023-08-31 DOI: 10.3329/bjb.v52i2.68251

Y. Xiao, Sheng Li, Qian Zhou, Li-jiao Li, Zhihong He, Qi Hu, Zhipeng Tan, Fengying Ma, Jiuwei Hu, Yiyi Xiao, Rujing Deng

{"title":"Changes and relationship of climate and late-rice yield in chenzhou city of south hunan province of CHINA","authors":"Y. Xiao, Sheng Li, Qian Zhou, Li-jiao Li, Zhihong He, Qi Hu, Zhipeng Tan, Fengying Ma, Jiuwei Hu, Yiyi Xiao, Rujing Deng","doi":"10.3329/bjb.v52i2.68251","DOIUrl":"https://doi.org/10.3329/bjb.v52i2.68251","url":null,"abstract":"The changes and relationship of climate parameters and late-rice yield per unit area during the growth periods of late-rice from 2010 to 2019 were quantitatively analyzed in order to provide scientific guidance for countermeasures against climate change and sustainable production of late-rice. The climate parameters include cumulative daily sunshine hours (S), mean daily temperature (T), cumulative daily precipitation (P), mean daily relative humidity (H), daily highest and lowest temperatures (Th and Tl), days of high temperatures (DT ≥ 30℃ and DTh ≥ 35℃) and low temperature (DTl < 15℃). Results showed that: (i) Late-rice yield was significantly increased quadratically from 5621.33 kg hm2 in 2010 to 6333.65 kg hm2 in 2019 with a mean of 5959.2 kg hm2. (ii ) According to the suitable climate conditions for growth of late-rice, T and P were low but H was suitable in the whole field growth period of late-rice, T was suitable in the transplanting-tillering stage, but was low in the booting-heading and milk ripening-mature stage. DT ≥ 30℃, DTh ≥ 35℃ and DTl < 15℃ was meanly 7.7, 7.5 and 6.4 d, respectively, which showed possible occurrence of the damages to late-rice due to high and low temperatures. iii) Only T, Th and Tl in the booting-heading stage showed significant positive correlation with year, and the optimal regression models were in quadratic and exponential types. The climate parameters of S, T and Th in the boot-heading stage were significantly positively correlated with late-rice yield, and the optimal regression models were all in quadratic types. Daily highest temperature (Th) affected late-rice yield most (61.04%), followed by T (36.50%), and S affected least (2.46%). Considering the current conflict in the field planting periods between tobacco and late-rice, late rice varieties needs to be bred with short growth period and high tolerance to both high and low temperatures.\u0000Bangladesh J. Bot. 52(2): 639-647, 2023 (June) Special","PeriodicalId":8703,"journal":{"name":"Bangladesh Journal of Botany","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47930267","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}

引用次数: 0

A near-infrared reflectance spectroscopy–based nondestructive technique for the detection of seed-borne fungi in choy sum (Brassica chinensis var. Parchinensis) 基于近红外反射光谱的白菜种传真菌无损检测技术

4区生物学

Bangladesh Journal of Botany Pub Date : 2023-08-31 DOI: 10.3329/bjb.v52i20.68285

Bijuan Chen, Guilian Li, Zheng Xiong, Yihao Xiong, Can Xu, Binghong Xiong

{"title":"A near-infrared reflectance spectroscopy–based nondestructive technique for the detection of seed-borne fungi in choy sum (Brassica chinensis var. Parchinensis)","authors":"Bijuan Chen, Guilian Li, Zheng Xiong, Yihao Xiong, Can Xu, Binghong Xiong","doi":"10.3329/bjb.v52i20.68285","DOIUrl":"https://doi.org/10.3329/bjb.v52i20.68285","url":null,"abstract":"In the present study seed-born fungi in choy sum (Brassica Chinensis Var. Parchinensis) was detected through a near-infrared reflectance spectroscopy–based nondestructive technique. Four common species of seed-borne fungi namely, Penicillium decumbens, Penicillium namyslowskii, Lichtheimia corymbifera, and Aspergillus niger were found to grow in choy sum in southern China. A novel finding was that P. decumbens had the greatest inhibition of the germination of Choy sum seeds, resulting in a non-germination rate exceeding 62.8%. The existing standardized seed sterilization treatment failed to completely kill P. decumbens, so a way to nondestructively identify and filter out P. decumbens–infected seeds wereevolved is urgently needed. Near-infrared reflectance spectroscopy–based partial least squares–discriminant analysis (PLS-DA) model achieved a discrimination accuracy of 95% in on-line nondestructive detection of P. decumbens–infected choy sum seeds. By detailing the design and application of an innovative product, this study lays a foundation for the development of intelligent equipment, and it provides a decision-making basis for seed breeding industrialization and germplasm supervision. Bangladesh J. Bot. 52(2): 689-694, 2023 (June) Special","PeriodicalId":8703,"journal":{"name":"Bangladesh Journal of Botany","volume":"149 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135946014","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}

引用次数: 0

A new fern species hypodematium shandongense sp. Nov. (hypodematiaceae) from china 标题中国蕨类植物一新种——山东凤尾蕨

4区生物学

Bangladesh Journal of Botany Pub Date : 2023-08-31 DOI: 10.3329/bjb.v52i20.68278

Xiao-Juan Li, Jian-Xiu Li, Xiao Wang, Wei Liu

引用次数: 0

Broad bean wilt virus 2 in commelina communis L. in China 蚕豆枯萎病毒2型在中国的传播

4区生物学

Bangladesh Journal of Botany Pub Date : 2023-08-31 DOI: 10.3329/bjb.v52i20.68222

Shuang Gang, Shirui Zhang, Shunyan Zhang, Jia Sun, Caixia Yang

引用次数: 0