Pub Date : 2022-04-01DOI: 10.3724/sp.j.1006.2022.12006
Jian Ke, T. Chen, Zhou Wu, Tiezhong Zhu, Jie Sun, Hai-bing He, Cui-cui You, De-Quan Zhu, Liquan Wu
: To clarify the suitable types of rice varieties and the mechanism of high yield formation, we mainly analyzed the yield difference between indica and japonica rice in late season in the northern margin of the double-cropping rice along the Yangtze River. The experiment was conducted from 2018 to 2019 in Lujiang, Anhui province. The differences of yield and yield components, dry matter accumulation, and growth period between indica and japonica rice were compared and analyzed through 17 indica rice and 17 japonica rice varieties (strains) which were cultivated in this local area. The results showed that the overall for high-yielding japonica rice varieties with different panicle types in order to further develop the yield potential.
{"title":"Suitable varieties and high-yielding population characteristics of late season rice in the northern margin area of double-cropping rice along the Yangtze River","authors":"Jian Ke, T. Chen, Zhou Wu, Tiezhong Zhu, Jie Sun, Hai-bing He, Cui-cui You, De-Quan Zhu, Liquan Wu","doi":"10.3724/sp.j.1006.2022.12006","DOIUrl":"https://doi.org/10.3724/sp.j.1006.2022.12006","url":null,"abstract":": To clarify the suitable types of rice varieties and the mechanism of high yield formation, we mainly analyzed the yield difference between indica and japonica rice in late season in the northern margin of the double-cropping rice along the Yangtze River. The experiment was conducted from 2018 to 2019 in Lujiang, Anhui province. The differences of yield and yield components, dry matter accumulation, and growth period between indica and japonica rice were compared and analyzed through 17 indica rice and 17 japonica rice varieties (strains) which were cultivated in this local area. The results showed that the overall for high-yielding japonica rice varieties with different panicle types in order to further develop the yield potential.","PeriodicalId":52132,"journal":{"name":"Acta Agronomica Sinica(China)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45359920","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 : 2022-04-01DOI: 10.3724/sp.j.1006.2022.14036
Yao Feng, Xi Zhu, Hongqiang Luo, Shiguang Li, Ning Zhang, H. Si
{"title":"Functional analysis of <italic>StMAPK4</italic> in response to low temperature stress in potato","authors":"Yao Feng, Xi Zhu, Hongqiang Luo, Shiguang Li, Ning Zhang, H. Si","doi":"10.3724/sp.j.1006.2022.14036","DOIUrl":"https://doi.org/10.3724/sp.j.1006.2022.14036","url":null,"abstract":"","PeriodicalId":52132,"journal":{"name":"Acta Agronomica Sinica(China)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42445204","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}
: Crop straw resources in Northeast China are rich, but burning and discarding are serious, and nutrient utilization rate is very low. We explored the feasibility of the substitution of straw returning to nitrogen fertilizer and its effects on nitrogen accumulation under continuous cropping in cold region. A frame culture and continuous positioning experiment was carried out in the experimental site of Northeast Agricultural University from 2017 to 2019, with 15 N labeled urea. A three-factor split-plot design was adopted in this experiment, the main plot was straw returning method with no straw returning (S0) and straw returning (S1), and the sub-plot was nitrogen application levels with 0 (N0), 175 (N1), and 350 (N2) kg hm –2 . Two application methods were set for each fertilizer application amount, one ratio of base fertilizer and top dressing applied was 1:1, and the other ratio of base fertilizer and top dressing applied was 1:0. The results were as follows: When the straw returning amount was 12 t hm –2 , the returning straw could replace 36.8 kg hm –2 pure nitrogen. The average amount of maize straw was 46.50 million tons in Heilongjiang Province from 2017 to 2019, and straw returning could replace 142,700 tons pure nitrogen. The replace amount of pure nitrogen in the ratio of base fertilizer and top dressing (1:1) was 26.88% higher than that in 1:0. Straw returning was negatively correlated with nitrogen use efficiency in maize. The average nitrogen use efficiency of maize in S0 treatment was 6.09% higher than S1 treatment, and the yield of S1 treatment was 4.66% higher than S0 treatment when the urea application amount was 350 kg hm –2 (161 kg hm –2 pure nitrogen). The highest yield of maize was 268.22 g frame –1 in the treatment of straw returning and topdressing with commonly fertilizer applied in local agriculture. In conclusion, the nitrogen substitution effect was remarkable under maize straw returning in Northeast China. Long-term combined application of crop straw and nitrogen fertilizer significantly improved the biomass, yield, and nitrogen accumulation of maize, which was a cultivation mode for increasing yield and efficiency of maize in Northeast China.
:东北地区农作物秸秆资源丰富，但焚烧和丢弃现象严重，养分利用率很低。探讨了寒区连作条件下秸秆还肥替代氮肥的可行性及其对氮素积累的影响。2017 - 2019年，在东北农业大学试验点进行了15 N标记尿素的框架培养和连续定位试验。试验采用三因素分畦设计，主小区为秸秆还田法，其中秸秆不还田(S0)和秸秆还田(S1)，次小区为施氮水平为0 (N0)、175 (N1)和350 (N2) kg hm -2。每个施肥量设置两种施用方式，一种施用基肥与追肥的比例为1:1，另一种施用基肥与追肥的比例为1:0。结果表明:秸秆还田量为12 t hm -2时，还田秸秆可替代纯氮36.8 kg hm -2;2017 - 2019年，黑龙江省平均玉米秸秆用量为4650万吨，秸秆还田可替代纯氮14.27万吨。基肥与追肥比例为1:1时的纯氮替代量比1:0时提高了26.88%。秸秆还田与玉米氮素利用效率呈负相关。尿素用量为350 kg hm -2(纯氮用量为161 kg hm -2)时，S0处理玉米氮素平均利用率比S1处理高6.09%，S1处理产量比S1处理高4.66%。秸秆还田追肥处理玉米产量最高，为268.22 g - frame -1。综上所述，东北地区玉米秸秆还田过程中氮素替代效应显著。作物秸秆与氮肥长期配施显著提高了玉米生物量、产量和氮素积累量，是东北地区玉米增产增效的栽培模式。
{"title":"Nitrogen accumulation and nitrogen substitution effect of maize under straw returning with continuous cropping","authors":"Yu-Ting Yan, Qiu Song, Chao Yan, Shuang Liu, Yuheng Zhang, Jing Tian, Yu Deng, Chun-Mei Ma","doi":"10.3724/sp.j.1006.2022.13010","DOIUrl":"https://doi.org/10.3724/sp.j.1006.2022.13010","url":null,"abstract":": Crop straw resources in Northeast China are rich, but burning and discarding are serious, and nutrient utilization rate is very low. We explored the feasibility of the substitution of straw returning to nitrogen fertilizer and its effects on nitrogen accumulation under continuous cropping in cold region. A frame culture and continuous positioning experiment was carried out in the experimental site of Northeast Agricultural University from 2017 to 2019, with 15 N labeled urea. A three-factor split-plot design was adopted in this experiment, the main plot was straw returning method with no straw returning (S0) and straw returning (S1), and the sub-plot was nitrogen application levels with 0 (N0), 175 (N1), and 350 (N2) kg hm –2 . Two application methods were set for each fertilizer application amount, one ratio of base fertilizer and top dressing applied was 1:1, and the other ratio of base fertilizer and top dressing applied was 1:0. The results were as follows: When the straw returning amount was 12 t hm –2 , the returning straw could replace 36.8 kg hm –2 pure nitrogen. The average amount of maize straw was 46.50 million tons in Heilongjiang Province from 2017 to 2019, and straw returning could replace 142,700 tons pure nitrogen. The replace amount of pure nitrogen in the ratio of base fertilizer and top dressing (1:1) was 26.88% higher than that in 1:0. Straw returning was negatively correlated with nitrogen use efficiency in maize. The average nitrogen use efficiency of maize in S0 treatment was 6.09% higher than S1 treatment, and the yield of S1 treatment was 4.66% higher than S0 treatment when the urea application amount was 350 kg hm –2 (161 kg hm –2 pure nitrogen). The highest yield of maize was 268.22 g frame –1 in the treatment of straw returning and topdressing with commonly fertilizer applied in local agriculture. In conclusion, the nitrogen substitution effect was remarkable under maize straw returning in Northeast China. Long-term combined application of crop straw and nitrogen fertilizer significantly improved the biomass, yield, and nitrogen accumulation of maize, which was a cultivation mode for increasing yield and efficiency of maize in Northeast China.","PeriodicalId":52132,"journal":{"name":"Acta Agronomica Sinica(China)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42570687","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}
: Sugarcane is one of the important sugar crops in China. Arbuscular mycorrhizas (AM) fungi are widely distributed. Researches have shown that AM fungi infecting plant roots can promote nutrient absorption and growth of plants. In this study, pot experiment was used to set up with two fertilization levels of conventional fertilization (N) and reduced fertilization (R), and inoculated (AM) and control (CK). There were four treatments in total, and four replicates were set in each treatment. The results revealed that the plants inoculated with AM fungi did not only significantly increased the biomass accumulation, but also significantly affected the pH value, alkali hydrolyzable nitrogen and available phosphorus of sugarcane rhizosphere soil. The biomass accumulation in the AM fungus inoculation treatment under reduced fertilization was significantly higher than that of conventional fertilization. The turquoise module and darkgreen module with high specificity with nutrient phenotypes such as nitrogen and phosphorus were screened by weighted gene co-expression network analysis (WGCNA). The core genes of the module were screened with KME value greater than 0.7 as the threshold, and 408 and 21 core genes were screened, respectively. GO enrichment indicated that these core genes were mainly involved in nutrient transport, metabolism, and enzyme catalysis pathways. Based on annotation information and the connectivity of genes, 28 core genes related to the absorption and transportation of nutrients such as nitrogen and phosphorus and 108 related candidate genes were detected among the core genes screened. This study reveals the effects of AM fungi on sugarcane nutrient absorption, and provides a theoretical basis for further understanding of the molecular mechanisms of AM fungi affecting sugarcane nutrient absorption.
{"title":"Effects of arbuscular mycorrhizal fungi on sugarcane growth and nutrient- related gene co-expression network under different fertilization levels","authors":"Chuibao Kong, Ziqin Pang, Caifeng Zhang, Qiang Liu, Chaoqiong Hu, Yingnan Xiao, Zhaonian Yuan","doi":"10.3724/sp.j.1006.2022.14052","DOIUrl":"https://doi.org/10.3724/sp.j.1006.2022.14052","url":null,"abstract":": Sugarcane is one of the important sugar crops in China. Arbuscular mycorrhizas (AM) fungi are widely distributed. Researches have shown that AM fungi infecting plant roots can promote nutrient absorption and growth of plants. In this study, pot experiment was used to set up with two fertilization levels of conventional fertilization (N) and reduced fertilization (R), and inoculated (AM) and control (CK). There were four treatments in total, and four replicates were set in each treatment. The results revealed that the plants inoculated with AM fungi did not only significantly increased the biomass accumulation, but also significantly affected the pH value, alkali hydrolyzable nitrogen and available phosphorus of sugarcane rhizosphere soil. The biomass accumulation in the AM fungus inoculation treatment under reduced fertilization was significantly higher than that of conventional fertilization. The turquoise module and darkgreen module with high specificity with nutrient phenotypes such as nitrogen and phosphorus were screened by weighted gene co-expression network analysis (WGCNA). The core genes of the module were screened with KME value greater than 0.7 as the threshold, and 408 and 21 core genes were screened, respectively. GO enrichment indicated that these core genes were mainly involved in nutrient transport, metabolism, and enzyme catalysis pathways. Based on annotation information and the connectivity of genes, 28 core genes related to the absorption and transportation of nutrients such as nitrogen and phosphorus and 108 related candidate genes were detected among the core genes screened. This study reveals the effects of AM fungi on sugarcane nutrient absorption, and provides a theoretical basis for further understanding of the molecular mechanisms of AM fungi affecting sugarcane nutrient absorption.","PeriodicalId":52132,"journal":{"name":"Acta Agronomica Sinica(China)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43481594","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 : 2022-04-01DOI: 10.3724/sp.j.1006.2022.14077
Yuqin Shi, Mengdan Sun, Fan Chen, Hongtao Cheng, Xuezhi Hu, L. Fu, Q. Hu, D. Mei, Chao Li
{"title":"Genome editing of <italic>BnMLO6</italic> gene by CRISPR/Cas9 for the improvement of disease resistance in <italic>Brassica napus </italic>L","authors":"Yuqin Shi, Mengdan Sun, Fan Chen, Hongtao Cheng, Xuezhi Hu, L. Fu, Q. Hu, D. Mei, Chao Li","doi":"10.3724/sp.j.1006.2022.14077","DOIUrl":"https://doi.org/10.3724/sp.j.1006.2022.14077","url":null,"abstract":"","PeriodicalId":52132,"journal":{"name":"Acta Agronomica Sinica(China)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44665532","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 : 2022-04-01DOI: 10.3724/sp.j.1006.2022.12026
Yue Chen, Mingzhe Sun, Bowei Jia, Yue Leng, Xiao-li Sun
: AP2/ERF (APETALA2/ethylene responsive factor) is a family of plant specific transcription factors that are widely involved in various biological processes including plant growth and development and stress responses. Rice is an important food crop in China, but it is severely affected by multiple adverse environmental factors during growth period. It has been found that AP2/ERF transcription factors play important roles in stress response in rice. In this paper, we reviewed the classification and structure architecture of rice AP2/ERF transcription factors and summarized the function and molecular mechanism of different AP2/ERF subfamilies in rice response to disease, drought, saline, and low temperature stresses. This study provides a reference for further interpretation of the molecular network of rice AP2/ERFs-mediated regulatory network in stress responses and their application potential for stress resistance improvement of rice cultivars.
{"title":"Research progress regarding the function and mechanism of rice AP2/ERF transcription factor in stress response","authors":"Yue Chen, Mingzhe Sun, Bowei Jia, Yue Leng, Xiao-li Sun","doi":"10.3724/sp.j.1006.2022.12026","DOIUrl":"https://doi.org/10.3724/sp.j.1006.2022.12026","url":null,"abstract":": AP2/ERF (APETALA2/ethylene responsive factor) is a family of plant specific transcription factors that are widely involved in various biological processes including plant growth and development and stress responses. Rice is an important food crop in China, but it is severely affected by multiple adverse environmental factors during growth period. It has been found that AP2/ERF transcription factors play important roles in stress response in rice. In this paper, we reviewed the classification and structure architecture of rice AP2/ERF transcription factors and summarized the function and molecular mechanism of different AP2/ERF subfamilies in rice response to disease, drought, saline, and low temperature stresses. This study provides a reference for further interpretation of the molecular network of rice AP2/ERFs-mediated regulatory network in stress responses and their application potential for stress resistance improvement of rice cultivars.","PeriodicalId":52132,"journal":{"name":"Acta Agronomica Sinica(China)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41517286","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 : 2022-04-01DOI: 10.3724/sp.j.1006.2022.12073
Sheng-Ji Yan, A. Deng, Zi-Yin Shang, Zhi-wei Tang, Changing Chen, Jun Zhang, Wei-jian Zhang
{"title":"Characteristics of carbon emission and approaches of carbon mitigation and sequestration for carbon neutrality in China’s crop production","authors":"Sheng-Ji Yan, A. Deng, Zi-Yin Shang, Zhi-wei Tang, Changing Chen, Jun Zhang, Wei-jian Zhang","doi":"10.3724/sp.j.1006.2022.12073","DOIUrl":"https://doi.org/10.3724/sp.j.1006.2022.12073","url":null,"abstract":"","PeriodicalId":52132,"journal":{"name":"Acta Agronomica Sinica(China)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44756862","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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