Bangladesh Journal of Botany最新文献_第9页

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

Soil Salinity, Its Inversion and Spatial Distribution Characteristics in Agricultural Fields Using Remote Sensing Data 农田土壤盐分遥感反演及空间分布特征

IF 0.3 4区生物学

Bangladesh Journal of Botany Pub Date : 2023-08-31 DOI: 10.3329/bjb.v52i2.68191

Hui Kong, Dan Wu, Liangyan Yan

{"title":"Soil Salinity, Its Inversion and Spatial Distribution Characteristics in Agricultural Fields Using Remote Sensing Data","authors":"Hui Kong, Dan Wu, Liangyan Yan","doi":"10.3329/bjb.v52i2.68191","DOIUrl":"https://doi.org/10.3329/bjb.v52i2.68191","url":null,"abstract":"Soil salinization is an urgent problem in the arid and semi-arid regions that damages soil ecology and affects agricultural growths. Timely supervision and monitoring of soil salinity are essential to reach the most sustainable improvement goals in arid and semi-arid regions. In the present study, the soil of Aktau region in Xinjiang, China was collected to build a remote sensing based inversion model for identifying soil salinity hazards. Results showed that Normalized Difference Vegetation Index (NDVI), Normalized Difference Water Index (NDWI), and Difference Vegetation Index (DVI) were correlated (P < 0.01) with the model inversion, having correlation coefficients of -0.735, -0.858, and -0.774, respectively. All these were suitable for the construction of the soil salinity inversion model where the optimal parameters of model accuracy were above 85% and prediction results were accurate credible and consistent with the measured data. The NDWI extracted from multispectral images was used as the key parameter of the soil salinity inversion model, which could obtain a better spatial distribution of soil salinity. The remote sensing inversion model of soil salinity provides a theoretical basis for the management of soil salinization and sustainable utilization of agricultural resources in the Aktau region of Xinjiang.\u0000Bangladesh J. Bot. 52(2): 437-443, 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":"42056391","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

Lateral bud induction and establishment of regeneration system of cassia mimosoides L. 决明子侧芽诱导及再生体系的建立。

IF 0.3 4区生物学

Bangladesh Journal of Botany Pub Date : 2023-08-31 DOI: 10.3329/bjb.v52i2.68214

Ya Li Yang, Qian Qian Dai, Pei Ting He, Zhan Wen Lin, Sheng Yuan Zhang, Dadu Lin, Ying Liu, Mingzhen Zhai, Lu Bin Zhang

{"title":"Lateral bud induction and establishment of regeneration system of cassia mimosoides L.","authors":"Ya Li Yang, Qian Qian Dai, Pei Ting He, Zhan Wen Lin, Sheng Yuan Zhang, Dadu Lin, Ying Liu, Mingzhen Zhai, Lu Bin Zhang","doi":"10.3329/bjb.v52i2.68214","DOIUrl":"https://doi.org/10.3329/bjb.v52i2.68214","url":null,"abstract":"To establish an efficient plant regeneration system of Cassia mimosoides, the 10-day-old seedlings were used as explants for inducing lateral buds. Results showed that the addition of BA and NAA for different ratios on the basis of 1/2 MS could effectively induce the production of lateral buds. By adding different additional elements, it was found that the growth of lateral buds was longer and stronger on the medium of 1/2 MS + 3.0 mg/l BA + 0.1 mg/l NAA + 4.0 mg/l Gln or 1/2 MS + 3.0 mg/l BA + 0.1 mg/l NAA + 1.0 mg/l AgNO3. Meanwhile, cutting with the lateral buds of tissue culture seedling, the rooting rate could reach 77.8% when 1/2 MS medium contained 0.2 mg/l NAA, although the root length was shorter. When the regenerated strong seedlings were transplanted into the soil, the survival rate was over 75%. Therefore, the best medium for lateral bud induction using 10-day-old seedlings as explants in C. mimosoides was 1/2 MS + 3.0 mg/l BA + 0.1 mg/l NAA. The growth of lateral buds can be promoted by the appropriate concentration of Gln and AgNO3, and the best rooting medium was 1/2 MS contained 0.2 mg/l NAA.\u0000Bangladesh J. Bot. 52(2): 515-521, 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":"41476667","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

Physiological differences of green-leaf and variegated - leaf ivy (hedera helix L.) Cultivars 绿常青藤与杂交藤的生理差异品种

4区生物学

Bangladesh Journal of Botany Pub Date : 2023-08-31 DOI: 10.3329/bjb.v52i20.68219

Ting Zhang, Yanru Fu

{"title":"Physiological differences of green-leaf and variegated - leaf ivy (hedera helix L.) Cultivars","authors":"Ting Zhang, Yanru Fu","doi":"10.3329/bjb.v52i20.68219","DOIUrl":"https://doi.org/10.3329/bjb.v52i20.68219","url":null,"abstract":"To screen sun-resistant cultivars of ivy for the three-dimensional greening of urban roofs and balconies, the chlorophyll content, photosynthetic response index, and chlorophyll fluorescence parameters of 5 green-leaf and 5 variegated leaf cultivars of ivy were measured, and compared the photosynthetic characteristics of different cultivars. Results showed that ivy seedlings were very shade tolerant. The photosynthetic adaptation range, maximum net photosynthetic rate, and electron transfer efficiency of the PSII reaction center of the green-leaf ivy cultivars were significantly higher than those of the variegated ivy cultivars. The photochemical conversion efficiency and photosynthetic capacity of Hedera helix ‘Shamrock’ were higher than those of the other tested green-leaf cultivars, suggesting that Hedera helix ‘Shamrock’ had a strong light tolerance. The differences in photosynthetic characteristics among the variegated cultivars were greater than those within the green-leaf cultivars. Among the tested cultivars, Hedera helix ‘Mini Kolibri’ had a relatively high light adaptation range and high light efficiency potential. Bangladesh J. Bot. 52(2): 539-549, 2023 (June) Special","PeriodicalId":8703,"journal":{"name":"Bangladesh Journal of Botany","volume":"24 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":"135946021","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

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

4区生物学

Bangladesh Journal of Botany Pub Date : 2023-08-31 DOI: 10.3329/bjb.v52i20.68231

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.v52i20.68231","DOIUrl":"https://doi.org/10.3329/bjb.v52i20.68231","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. Bangladesh J. Bot. 52(2): 607-612, 2023 (June) Special","PeriodicalId":8703,"journal":{"name":"Bangladesh Journal of Botany","volume":"832 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":"135946356","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