作物学报最新文献

{"title":"Response of winter wheat yield, nitrogen use efficiency and soil nitrogen balance to rainfall types and nitrogen application rate in dryland","authors":"Xing-Yu Guo, Peng Liu, Rui Wang, Xiaoli Wang, Jun Li","doi":"10.3724/sp.j.1006.2022.11034","DOIUrl":"https://doi.org/10.3724/sp.j.1006.2022.11034","url":null,"abstract":": To study the effects of nitrogen application rate on grain yield, nitrogen utilization, and soil nitrogen balance of dryland winter wheat fields under different rainfall types, we explored the optimal nitrogen input levels for stable yield and high efficiency of winter wheat in the Weibei highland of North China, which could provide a theoretical basis for efficient fertilization. Five nitrogen treatments including 0, 60, 120, 180, and 240 kg hm –2 (designated as N0, N60, N120, N180, and N240, respectively) were arranged in Heyang County, Shaanxi Province from 2017 to 2020. The three-year in situ experiment were as follows: (1) Different rainfall types had significant impact on yield and economic profits of winter wheat. Compared with the normal and dry rate for both high yield and good environmental benefits, which could be benefit for reference in the production of this region.","PeriodicalId":52132,"journal":{"name":"Acta Agronomica Sinica(China)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44177265","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}

{"title":"Effects of cotton stubble return and subsoiling on dry matter accumulation, nutrient uptake, and yield of cotton in coastal saline-alkali soil","authors":"Xiao-Yu Yan, Wen-jun Guo, Du-lin Qin, Shuang-lei Wang, Junjun Nie, Na Zhao, J. Qi, Xianliang Song, L. Mao, Xue-zhen Sun","doi":"10.3724/sp.j.1006.2022.14064","DOIUrl":"https://doi.org/10.3724/sp.j.1006.2022.14064","url":null,"abstract":": To study the effects of cotton straw returning and deep loosening on cotton yield, salt subsoiling tillage (SRT) were conducted using Lumianyan 36 as experimental material. The results showed that cotton stubble return increased cotton yield across two years. Lint yield of SR was 33.9% higher than CT, and SRT 32.1% higher than SR. Subsoiling increased cotton yield in 2017 and had no effect on it in 2018. Cotton stubble return reduced the salt content of 0–40 cm soil layer. The salt content of SR was 22.4% lower than that of CT, and the soil salt content of SRT was 20.7% lower than that of ST at the late growth stage in cotton. However, the effect of subsoiling on the salt content of 20–40 cm soil layer was incon-sistent during the two-year experiment. The soil salt content of ST was 16.5% lower than of CT at late growth stage in 2017, but subsoiling had no effect on soil salt content in 2018. The accumulation dynamic of dry matter and N, P, K in cotton were consis-tent with the Logistic growth curve. Cotton stubble return increased maximal accumulation of dry matter and N, P, K in two years. The maximum accumulation of dry matter, N, P, and K in SR was 35.5%, 38.3%, 53.4%, and 55.0% higher than that in CT, and the accumulation of SRT was 27.0%, 30.7%, 21.2%, and 42.4% higher than that in ST. Compared with CT, the dry matter, N, P, and K accumulation of ST increased by 17.8%, 22.2%, 51.3%, and 40.6% in 2017, respectively, but had no effect in 2018. The dynamic of dry matter and nutrient accumulation were mainly affected by the maximum accumulation rate and rapid accumulation duration. Stubble return increased the amount and proportion of dry matter and N, P, K allocated to reproductive organs of cotton in the two-year experiment. Compared with CT, ST increased the allocation amount of dry matter and N, P, K to reproductive organs in 2017, but had no effect in 2018. In summary, the results revealed that cotton stubble return (SR) or cotton stubble return + subsoiling tillage (SRT) could be recommended tillage measures for soil improvement and high cotton yield in coastal sa-line-alkali cotton area.","PeriodicalId":52132,"journal":{"name":"Acta Agronomica Sinica(China)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46734385","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}

{"title":"Mechanism and technology of stand establishment improvements through regulating the apical hook formation and hypocotyl growth during seed germination and emergence in cotton","authors":"Jingfei Zhou, Xiangqiang Kong, Yanjun Zhang, Xue-Yuan Li, Dong-Mei Zhang, He-zhong Dong","doi":"10.3724/sp.j.1006.2022.14116","DOIUrl":"https://doi.org/10.3724/sp.j.1006.2022.14116","url":null,"abstract":": Realizing full and strong stand establishment of seedlings is the basis for achieving high yields and bump harvests in cotton. However, cotton is a dicotyledonous plant whose cotyledons are successfully all unearthed for standing. Seedling emergence is susceptible to environmental conditions and seeding techniques. Therefore, it is generally more difficult for cotton to get full and strong stand establishment than other major crops. The apical hook formation and the hypocotyl growth at seed germination and emergence stages play key roles in seedling emergence and stand establishment. Here we systemically reviewed the regulation mechanism of cotton seedling growth for the first time and put forward the key agronomic cultivation techniques to promote cotton seedling growth, focusing on the physiological and molecular mechanism of hook formation and hypocotyl growth and their influencing factors. Precision monoseeding can improve timely and moderate expression of the key genes HLS1 and COP1 related to hypocotyl elongation and hook formation, which assures better stand establishment by timely formation and expansion of the hooks and timely shedding of seed shells. The hypocotyl can grow steadily and form strong seedings by regulating the expression of key genes HY5 and ARF2 related to hypocotyl growth under precision monoseeding. In this paper, the key cultivation techniques of cotton precision monoseedling, combined with fine soil preparation, improving seed quality, plastic mulching, and drip irrigation under mulching were summarized and reviewed. This review provides important reference and guidance for the improvement and development of cotton sowing and cultivation technology in cotton.","PeriodicalId":52132,"journal":{"name":"Acta Agronomica Sinica(China)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41852570","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}

{"title":"Effects of ridge tillage with film mulching in furrow on photosynthetic characteristics of potato and yield formation in dryland farming","authors":"Yan-Yan Shi, Zhiqi Ma, Chun-Hua Wu, Yong-jin Zhou, Rong Li","doi":"10.3724/sp.j.1006.2022.14050","DOIUrl":"https://doi.org/10.3724/sp.j.1006.2022.14050","url":null,"abstract":": To investigate the effects of ridge tillage with film mulching in furrow on photosynthetic characteristics and yield formation of potato in dry land, field experiment was conducted from 2018 to 2019 in mountain area of south Ningxia. Ridges were covered with common plastic film in all treatments, while different furrow treatments were mulched with common plastic film (DD), degradable permeable mulch film (DS), and bast fiber film (DM), and no mulching furrows was used as the control check (CK). The effects of ridge tillage with film mulching in furrow on soil moisture, photosynthetic characteristics of potato functional leaves and yield formation during the key growth period (60–120 days after sowing) were investigated and compared. The results showed that the different mulching treatments could significantly increase soil water storage in 0–100 cm layer during potato squaring stage (60 days after sowing). DD treatment was the highest in 2018 and DM treatment was the highest in 2019, which significantly increased by 11.2% and 21.6% than CK, respectively. In the key growth periods of potato, leaf area index of DS treatment was significantly higher than that of CK in 2019, but there was no significant difference among the other treatments. Different mulching treatments could increase the net photosynthetic rate and transpiration rate, while DM treatment significantly tuber swelling stage was significantly increased by 54.9%, 50.0%, and 22.6%. During the 2-year experiments, the average potato yield with DD, DM and DS treatments was increased by 13.2%, 14.1%, and 5.2%, the average net income was increased by 16.3%, 14.6% and 4.0%, respectively, compared with CK, while the differences in potato yield and net income were not significant between DS and CK. Correlation analysis showed that soil moisture and net photosynthetic rate were the main factors affect-ing potato yield formation. The treatments of ridge tillage with common plastic film mulching in furrow (DD) and ridge tillage with bast fiber film mulching in furrow (DM) could improve soil moisture at squaring stage, thus promoting the increase of potato photosynthesis and yield. Therefore, ridge tillage with bast fiber film mulching in furrow had the same effect of increasing yield and income as ridge tillage with common plastic film mulching in furrow, and it had the advantage of partially replacing common plastic mulching.","PeriodicalId":52132,"journal":{"name":"Acta Agronomica Sinica(China)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44464009","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}

{"title":"Characteristics of endophytic bacterial community structure in roots of sugarcane under different fertilizer applications","authors":"Jian Xiao, Siyu Chen, Yan Sun, Shangdong Yang, Hong-Wei Tan","doi":"10.3724/sp.j.1006.2022.14060","DOIUrl":"https://doi.org/10.3724/sp.j.1006.2022.14060","url":null,"abstract":": To explore the beneficial endophytic bacteria in sugarcanes and their functions, we analyzed the characteristics of bacteria in roots of sugarcanes were not significantly changed by fertilizer application under 1500 kg hm –2 treatment. In conclusion, the conventional fertilization at the present stage can be substituted by reducing fertilizer application from 3000 kg hm –2 to 1500 kg hm –2 level in sugarcane.","PeriodicalId":52132,"journal":{"name":"Acta Agronomica Sinica(China)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48507986","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}

{"title":"Root system architecture analysis and genome-wide association study of root system architecture related traits in cotton","authors":"Simin Sun, Bei Han, Lin Chen, Weinan Sun, Xian-long Zhang, Xiyan Yang","doi":"10.3724/sp.j.1006.2022.14067","DOIUrl":"https://doi.org/10.3724/sp.j.1006.2022.14067","url":null,"abstract":": Root is the main organ of plants that absorbs water and nutrients. The growth of the root system will directly affect the absorption and utilization of nutrients, the resistance to abiotic stress and finally the yield of cotton. In this study, a natural population of 220 upland cotton accessions and a chromosomal segment substitution line (CSSL) population with 325 lines, derived from the crossing and backcrossing of Gossypium barbadense acc. 3-79 with G. hirsutum cv. ‘Emian 22’ were selected to collect the major root phenotypic traits. Four major traits, namely main root length (MRL), root fresh weight (RFW), root dry weight (RDW) and lateral root angle (LRA) were investigated, and genome-wide association analysis (GWAS) was performed for four root traits in natural populations in combination with genome resequencing. The results showed that the four root traits of the natural population are all in line with normal distribution, and the CSSL population were all in skewed distribution. The mean value of root index of CSSL population was higher than that of natural population. A total of 2,714,140 SNP was obtained from the resequencing data of the natural population. The principal component analysis (PCA) showed that the RFW and MRL could be used as two indexes for cotton root classification, through which the cotton root could be divided into nine types in each population. The analysis of population structure demonstrated that the natural population can be divided into five subgroups. Ge-nome-wide association analysis rrevealed that two association sites were simultaneously associated by RFW and RDW in natural populations. The results of this study provide a theoretical basis for further research on root system architecture (RSA) and its genetic mechanism, and it is also of great significance to cotton breeding of abiotic stress resistance.","PeriodicalId":52132,"journal":{"name":"Acta Agronomica Sinica(China)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42587139","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}

{"title":"QTL mapping for plant architecture in rice based on chromosome segment substitution lines","authors":"Xiao-Lei Wang, Wei-Xing Li, Lin-Juan OU-YANG, Jie Xu, Xiaorong Chen, J. Bian, Lifang Hu, Xiaosong Peng, X. He, Junru Fu, Dahu Zhou, Hao-hua He, Xiaotang Sun, Changlan Zhu","doi":"10.3724/sp.j.1006.2022.12024","DOIUrl":"https://doi.org/10.3724/sp.j.1006.2022.12024","url":null,"abstract":": Plant architecture is a compound trait integrated with multiple morphological and physiological traits, and it is closely related to rice yield. Deciphering excellent plant architecture alleles or QTLs is of great significance for high-yield rice breeding. In this study, we constructed a set of Changhui 121/Koshihikari chromosome segment substitution lines (CSSLs) with the size of 208 in our laboratory. QTLs controlling plant height, flag leaf morphology, and tiller numbers were detected under three environments. A total of 35 QTLs for rice architecture were identified on 11 chromosomes except chromosome 9, and the range of the phenotypic variation explaining was 2.00%–22.86%. It was worth noting that qPH-1-1 , qFLW-6 , and qFLA-3 could be detected in three environments, among which qFLW-6 was a newly identified QTL of the flag leaf width. Phenotypic identification verified that the additive effects and environmental stability of the two locus alleles by the replacement lines carrying qPH-1-1 and sites. The results of this study laid the foundation for further fine mapping and cloning of QTLs for rice plant architecture and the molecular marker-assisted selection (MAS) in rice breeding.","PeriodicalId":52132,"journal":{"name":"Acta Agronomica Sinica(China)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43869973","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}

{"title":"Rice transcription factor WRKY68 plays a positive role in <italic>Xa21</italic>-mediated resistance to <italic>Xanthomonas oryzae</italic> pv. <italic>oryzae</italic>","authors":"Zhengbo Zhu, Tianxingzi Wang, Yue Chen, Yuqing Liu, Gaowei Yan, Shan Xu, Jinjiao Ma, S. Dou, Li-yun Li, Guozhen Liu","doi":"10.3724/sp.j.1006.2022.12010","DOIUrl":"https://doi.org/10.3724/sp.j.1006.2022.12010","url":null,"abstract":"","PeriodicalId":52132,"journal":{"name":"Acta Agronomica Sinica(China)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42338106","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}

{"title":"Functional studies of rice blast resistance related gene<italic> OsSAMS1</italic>","authors":"Dewei Yang, Xun Wang, Xing-Xing Zheng, Xingjie Xiang, Hai-tao Cui, Sheng-Ping Li, D. Tang","doi":"10.3724/sp.j.1006.2022.12022","DOIUrl":"https://doi.org/10.3724/sp.j.1006.2022.12022","url":null,"abstract":"","PeriodicalId":52132,"journal":{"name":"Acta Agronomica Sinica(China)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45162397","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}

{"title":"Isolation and expression of a new gene <italic>HvMEL1 AGO</italic> in Tibetan hulless barley under leaf stripe stress","authors":"X. Yao, Yue Wang, Youhua Yao, Li-Kun An, Yan Wang, Kunlun Wu","doi":"10.3724/sp.j.1006.2022.11042","DOIUrl":"https://doi.org/10.3724/sp.j.1006.2022.11042","url":null,"abstract":"","PeriodicalId":52132,"journal":{"name":"Acta Agronomica Sinica(China)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45036446","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}