Search

In the context of the development of new agricultural sciences, innovatively integrating public basic courses with agricultural elements, and optimizing teaching methods, represent critical strategies for advancing the reform of agricultural science’s characteristic basic courses. The course team has undertaken explorations and practices in integrating teaching content with agricultural characteristics, incorporating "agricultural flavor" into ideological and political education, and establishing a learning-centered, autonomous, cooperative, and inquiry-based teaching mode. Through these teaching reforms and practices, an effective integration of chemical knowledge with agricultural professional knowledge has been achieved, which is conducive to improving students' abilities to address issues within the agricultural field and providing support for the cultivation of exceptional talents in agriculture and forestry in the new era. [ABSTRACT FROM AUTHOR]

Copyright of University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of University Chemistry is the property of Peking University, College of Chemistry & Molecular Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

DON Toxin is a natural toxin produced by Fusarium after infecting cereals, which seriously threatens food security, food safety and human health. This paper introduces the discovery and research history of vomittin, its family (monotelomeric compounds) and typical members, and the frontier research of biological detoxification by means of personification, so that readers can understand this dangerous toxin in a lively way, especially for teachers and students of agricultural and medical colleges and universities. [ABSTRACT FROM AUTHOR]

A maize yield can depend greatly on the rainfall types in dryland agriculture. This study aims to investigate the effects of planting density on the yield traits of spring maize under different rainfall types in dryland. A successive field experiment was also carried out for the planting density of spring maize from different cultivars in the dryland farming experimental station of Northwest A&F University in Heyang County, Shaanxi Province of China from 2013 to 2018. Taking the Yuyu22, Zhengdan958, and Xianyu335 as the experimental cultivars, four planting densities were set (D1: 52 500, D2: 67 500, D3: 82 500, and D4: 97 500 plant/hm2) to determine the yield traits at the harvest stage in each growing season. The results showed that the ear length and ear diameter of maize decreased with the increase of planting density, whereas, the length of tip back was on the rise. There were significant differences in the ear length and ear diameter among different rainfall types (P<0.05), where the overall performance was also ranked in the order of the wet year≥normal year > dry year, but the order of the length of tip back was the dry year > normal year≥wet year. The rainfall types posed significant effects on the yield traits, further to determine the grain yield of maize in dryland, indicating that the yield in the normal and wet years was significantly higher than that in the dry years (P<0.05), whereas, the yield stability was also higher in the normal and wet years than that of dry years. Furthermore, there were significant positive correlations of planting density on the ear number per square (P <0.05), whereas, the kernel number per ear and 100-seed weight presented a negative correlation with the planting density (P<0.05). The planting density and cultivar posed a significant influence on the grain yield, but the cultivars greatly varied in response to the planting density (P<0.05). Specifically, the suitable planting density of Yuyu22 was 52 500-67 500 plant//hm2, and Zhengdan958 and Xianyu335 were 67 500~82 500 plant/hm2. Moreover, the latter presented a more stable yield. The correlation analysis showed that the ears number per square and the number of the kernels per ear were the most important factors affecting the yield of spring maize in the dry years. In the normal and wet years, the ear number per square was the main factor under a low planting density (D1), whereas, the 100-seed weight of spring maize served as the main factor under a high planting density (D4). A relatively higher planting density with 67 500-82 500 plant/hm2 combined with the density-tolerance cultivar (Zhengdan958 and Xianyu335) can be widely expected to improve the grain yield and yield stability of dryland maize. The finding can provide for the optimal planting pattern in sustainable dryland agriculture. A maize yield can depend greatly on the rainfall types in dryland agriculture. This study aims to investigate the effects of planting density on the yield traits of spring maize under different rainfall types in dryland. A successive field experiment was also carried out for the planting density of spring maize from different cultivars in the dryland farming experimental station of Northwest A&F University in Heyang County, Shaanxi Province of China from 2013 to 2018. Taking the Yuyu22, Zhengdan958, and Xianyu335 as the experimental cultivars, four planting densities were set (D1: 52 500, D2: 67 500, D3: 82 500, and D4: 97 500 plant/hm2) to determine the yield traits at the harvest stage in each growing season. The results showed that the ear length and ear diameter of maize decreased with the increase of planting density, whereas, the length of tip back was on the rise. There were significant differences in the ear length and ear diameter among different rainfall types (P<0.05), where the overall performance was also ranked in the order of the wet year≥normal year > dry year, but the order of the length of tip back was the dry year > normal year≥wet year. The rainfall types posed significant effects on the yield traits, further to determine the grain yield of maize in dryland, indicating that the yield in the normal and wet years was significantly higher than that in the dry years (P<0.05), whereas, the yield stability was also higher in the normal and wet years than that of dry years. Furthermore, there were significant positive correlations of planting density on the ear number per square (P <0.05), whereas, the kernel number per ear and 100-seed weight presented a negative correlation with the planting density (P<0.05). The planting density and cultivar posed a significant influence on the grain yield, but the cultivars greatly varied in response to the planting density (P<0.05). Specifically, the suitable planting density of Yuyu22 was 52 500-67 500 plant//hm2, and Zhengdan958 and Xianyu335 were 67 500~82 500 plant/hm2. Moreover, the latter presented a more stable yield. The correlation analysis showed that the ears number per square and the number of the kernels per ear were the most important factors affecting the yield of spring maize in the dry years. In the normal and wet years, the ear number per square was the main factor under a low planting density (D1), whereas, the 100-seed weight of spring maize served as the main factor under a high planting density (D4). A relatively higher planting density with 67 500-82 500 plant/hm2 combined with the density-tolerance cultivar (Zhengdan958 and Xianyu335) can be widely expected to improve the grain yield and yield stability of dryland maize. The finding can provide for the optimal planting pattern in sustainable dryland agriculture. [ABSTRACT FROM AUTHOR]

Copyright of Chinese Journal of Applied Ecology / Yingyong Shengtai Xuebao is the property of Chinese Journal of Applied Ecology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Applied Ecology / Yingyong Shengtai Xuebao is the property of Chinese Journal of Applied Ecology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Shipin Kexue/ Food Science is the property of Food Science Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Acta Agronomica Sinica is the property of Crop Science Society of China and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)