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Evaluating crop models to assess rice yield potential in Argentina 评估作物模型以评估阿根廷的水稻产量潜力
Crop and Environment Pub Date : 2022-09-01 DOI: 10.1016/j.crope.2022.08.002
Lorenzo Dalcin Meus , Cesar Eugenio Quintero , Giovana Ghisleni Ribas , Michel Rocha da Silva , Nereu Augusto Streck , Cleber Maus Alberto , María de los Ángeles Alejandra Zamero , Alencar Junior Zanon
{"title":"Evaluating crop models to assess rice yield potential in Argentina","authors":"Lorenzo Dalcin Meus ,&nbsp;Cesar Eugenio Quintero ,&nbsp;Giovana Ghisleni Ribas ,&nbsp;Michel Rocha da Silva ,&nbsp;Nereu Augusto Streck ,&nbsp;Cleber Maus Alberto ,&nbsp;María de los Ángeles Alejandra Zamero ,&nbsp;Alencar Junior Zanon","doi":"10.1016/j.crope.2022.08.002","DOIUrl":"10.1016/j.crope.2022.08.002","url":null,"abstract":"<div><p>Due to the high concentration of the rice production in Asia, the study and comprehension of rice producing chains outside this continent are key to guarantee the global food security. The objectives of this study were to validate the SimulArroz and ORYZA v3 crop simulation models for rice production in Argentina, estimate the yield potential (Yp) for different sowing dates with both models, and estimate how much Argentina can increase rice production in the current agricultural area by reducing the yield gap. Two contrasting rice models (ORYZA v3 and SimulArroz) were used. Besides both are mechanistic models, Simularroz model requires fewer coefficients than ORYZA v3,. which may increase the systematic error. The coefficient of determination between simulated and measured values was at least 0.74 for grain yield and 0.97 for phenology. RMSEn values for phenology ranged from 5.7% to 9.4%. Both models simulated grain yield accurately at high yield levels (&gt;13 ​Mg ​ha<sup>−1</sup>) with an RMSE &lt;0.5 ​Mg ha<sup>-1</sup>. The average irrigated rice Yp for subtropical Argentina estimated by the SimulArroz model ranged from 3.8 to 15.6 ​Mg ​ha<sup>−1</sup>, and from 7.6 to 14.3 ​Mg ​ha<sup>−1</sup> in the ORYZA v3. The differences in the Yp between the models were due to different approaches in the calculation of thermal sum and radiation use efficiency. The increase in the rice production in Argentina if the fields close the exploitable gap (80% of the Yp) would be 42% of the current total rice production or 916,091 ​Mg annually.</p></div>","PeriodicalId":100340,"journal":{"name":"Crop and Environment","volume":"1 3","pages":"Pages 182-188"},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2773126X2200034X/pdfft?md5=4b8f1a6a185f3429bd5803b5969bb18d&pid=1-s2.0-S2773126X2200034X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74609559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The difference method is not necessarily reliable for comparing the nitrogen use efficiency of hybrid rice cultivars with different tolerance to low nitrogen conditions 差异法对不同低氮耐受性杂交稻品种氮素利用效率的比较不一定可靠
Crop and Environment Pub Date : 2022-09-01 DOI: 10.1016/j.crope.2022.08.003
Min Huang, Yu Liu, Jiana Chen, Fangbo Cao
{"title":"The difference method is not necessarily reliable for comparing the nitrogen use efficiency of hybrid rice cultivars with different tolerance to low nitrogen conditions","authors":"Min Huang,&nbsp;Yu Liu,&nbsp;Jiana Chen,&nbsp;Fangbo Cao","doi":"10.1016/j.crope.2022.08.003","DOIUrl":"10.1016/j.crope.2022.08.003","url":null,"abstract":"<div><p>The difference method is one of the most commonly used methods to measure crop nitrogen (N) use efficiency. This study aimed to test the reliability of using this method to evaluate the N use efficiency of low-N tolerant hybrid rice. Two years of N fertilization experiments were conducted to compare yield attributes and N use efficiency measured by the difference method between two hybrid rice cultivars with contrasting tolerance to low N conditions, i.e. Deyou 4727 (D4727) with higher tolerance and Y-liangyou 900 (Y900) with relatively lower tolerance. Results showed that D4727 produced 17–24% higher grain yield than Y900 under zero-N fertilization conditions, confirming the higher tolerance of D4727 to low N conditions. Higher grain weight, harvest index, and internal N use efficiency were responsible for the higher grain yield in D4727 than in Y900. However, recovery efficiency of N determined by the difference method was not consistently different between D4727 and Y900, and physiological N use efficiency (PE<sub>N</sub>) and agronomic N use efficiency (AE<sub>N</sub>) determined by the difference method were 31–68% lower in D4727 compared to Y900. The lower PE<sub>N</sub> and AE<sub>N</sub> in D4727 than in Y900 were mainly due to a higher grain yield in D4727 than in Y900 under unfertilized conditions. This study suggests that the difference method is not necessarily reliable for comparing the N use efficiency of rice cultivars with different tolerance to low-N conditions, and both crop performance under unfertilized conditions and N responses under fertilized conditions should be considered when using this method to evaluate the N use efficiency of rice.</p></div>","PeriodicalId":100340,"journal":{"name":"Crop and Environment","volume":"1 3","pages":"Pages 168-172"},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2773126X22000351/pdfft?md5=226946a39d821f0b75ddbb4641bf1245&pid=1-s2.0-S2773126X22000351-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77968024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Genotypic variation of yield-related traits in an irrigated rice breeding program for tropical Asia 热带亚洲灌溉水稻育种项目中产量相关性状的基因型变异
Crop and Environment Pub Date : 2022-09-01 DOI: 10.1016/j.crope.2022.08.004
Syed Tahir Ata-Ul-Karim , Hasina Begum , Vitaliano Lopena , Teresita Borromeo , Perminder Virk , Jose E. Hernandez , Glenn B. Gregorio , Bertrand C.Y. Collard , Yoichiro Kato
{"title":"Genotypic variation of yield-related traits in an irrigated rice breeding program for tropical Asia","authors":"Syed Tahir Ata-Ul-Karim ,&nbsp;Hasina Begum ,&nbsp;Vitaliano Lopena ,&nbsp;Teresita Borromeo ,&nbsp;Perminder Virk ,&nbsp;Jose E. Hernandez ,&nbsp;Glenn B. Gregorio ,&nbsp;Bertrand C.Y. Collard ,&nbsp;Yoichiro Kato","doi":"10.1016/j.crope.2022.08.004","DOIUrl":"10.1016/j.crope.2022.08.004","url":null,"abstract":"<div><p>Developing high-yielding rice varieties is critical to ensure global food security. To date, selection of promising genotypes is based on empirical evaluation for grain yield, but the relationship of agronomic traits to yield in tropical rice breeding is largely unknown. This study aimed to determine the extent of variation for 19 agronomic traits and interrelationships among traits in an irrigated rice breeding program at the International Rice Research Institute, Philippines. A large set of elite germplasm comprising advanced genotypes and varieties derived from the breeding pipeline was evaluated during dry and wet seasons. The broad-sense heritability ranged from 0.35 to 0.99 for all traits in both seasons. Grain yield for the whole plot (plot yield) was positively correlated with yield per plant, 1000 grain weight, and grain width in dry season, and yield per plant, 1000 grain weight, grain width, number of panicles per plant, and panicle exertion rate in wet season. Path analysis showed that the highest direct positive effect of traits on plot yield ranged from 0.25 to 0.45 in dry season and from 0.22 to 0.88 in wet season. Heat map bi-cluster analysis assigned genotypes into three main clusters in both seasons, while traits were grouped into three and five clusters in dry and wet seasons, respectively. The cluster analysis showed that spikelets per panicle, filled grains per plant, and yield per plant were key yield contributing traits. Identification of traits that were highly correlated with rice yield could be useful for developing new varieties adapted to tropical environments.</p></div>","PeriodicalId":100340,"journal":{"name":"Crop and Environment","volume":"1 3","pages":"Pages 173-181"},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2773126X22000363/pdfft?md5=ab6a76732e945b1325ced4da9841c6d7&pid=1-s2.0-S2773126X22000363-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84952419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Cotton yield response to fertilizer phosphorus under a range of nitrogen management tactics 不同氮肥管理策略下棉花产量对肥磷的响应
Crop and Environment Pub Date : 2022-09-01 DOI: 10.1016/j.crope.2022.09.004
Gunasekhar Nachimuthu , Graeme Schwenke , Jon Baird , Annabelle McPherson , Clarence Mercer , Brad Sargent , Andy Hundt , Ben Macdonald
{"title":"Cotton yield response to fertilizer phosphorus under a range of nitrogen management tactics","authors":"Gunasekhar Nachimuthu ,&nbsp;Graeme Schwenke ,&nbsp;Jon Baird ,&nbsp;Annabelle McPherson ,&nbsp;Clarence Mercer ,&nbsp;Brad Sargent ,&nbsp;Andy Hundt ,&nbsp;Ben Macdonald","doi":"10.1016/j.crope.2022.09.004","DOIUrl":"10.1016/j.crope.2022.09.004","url":null,"abstract":"<div><p>Long term crop nutrient removal is leading to decline in available phosphorus (P) in Vertisols. To improve the efficiency of P fertilizer applied for cotton production it is important to understand its interaction with other applied nutrients, particularly nitrogen (N). Four experiments were conducted to investigate the cotton lint yield response to applied P fertilizer (dispersed throughout the beds) under (i) three different N rates, (ii) various split-N application timing treatments, (iii) additional late N application and (iv) two water-run urea application strategies. Cotton lint yield response to applied P fertilizer was influenced by split-N application ratio and timing, but not N rates or water run N strategies. Additional late N application reduced lint yield and P response. Applying all the N fertilizer pre-plant along with P increased cotton lint yield by 37.2% (with 32.5% greater seed yield), compared with applying P before planting and all N fertilizer in-crop. Phosphorus application improved lint turnout by increasing cotton lint and reducing trash. These results indicate improved agronomic efficiency of applied P fertilizer dispersed throughout the beds can be possible by supplying crops with optimum N earlier in the season. The P dispersion throughout the plant beds potentially improved the P acquisition by cotton roots—where more N was applied pre-plant than in-crop. Future research needs to focus on greater understanding of the N-priming effect on cotton root growth and its impact on response to applied P.</p></div>","PeriodicalId":100340,"journal":{"name":"Crop and Environment","volume":"1 3","pages":"Pages 214-219"},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2773126X22000417/pdfft?md5=432da5a2a4fc7e160fb4f6aa239ce6a8&pid=1-s2.0-S2773126X22000417-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86427106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Role of canopy temperature depression in rice 水稻冠层温度降低的作用
Crop and Environment Pub Date : 2022-09-01 DOI: 10.1016/j.crope.2022.09.001
Shu Fukai, Jaquie Mitchell
{"title":"Role of canopy temperature depression in rice","authors":"Shu Fukai,&nbsp;Jaquie Mitchell","doi":"10.1016/j.crope.2022.09.001","DOIUrl":"10.1016/j.crope.2022.09.001","url":null,"abstract":"<div><p>Canopy temperature depression (CTD), the difference between canopy temperature (CT) and air temperature, is induced by evaporative cooling of the plants when stomata open and transpiration takes place. This review describes that CTD in rice is closely associated with stomatal conductance, and they are both affected by the environmental condition and show similar genotypic variation. It then discusses the importance of lowering CT for high yield under heat stress and different water availability conditions. Canopy temperature declines below air temperature with open stomata, and CTD increases (i.e. larger negative value), linearly with increased vapour pressure deficit of the air, with large CTD of −3.0 to −5.0 ​°C not uncommon under drier conditions. While panicle temperature is often 1.0 to 2.0 ​°C higher than leaf temperature, there is sufficient cooling effect that reduces panicle temperature well below air temperature to improve spikelet fertility under hot dry conditions. Large genotypic variation in CTD is commonly found in most studies undertaken, and there are cases where larger CTD has contributed to genotypic heat resistance. The capacity of a genotype to lower CT and to maintain higher stomatal conductance is often associated with the genotype producing higher yield under both well-watered flooded and water deficit conditions. There appears to be good prospect for utilising genotypes with the capacity for large CTD under different growing conditions, and this review concludes with suggestions for ways to hasten rice improvement using CTD as a tool for different growing conditions.</p></div>","PeriodicalId":100340,"journal":{"name":"Crop and Environment","volume":"1 3","pages":"Pages 198-213"},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2773126X22000387/pdfft?md5=c2ae6c2cd0864808ee358c3bf5aae7ff&pid=1-s2.0-S2773126X22000387-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84237566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Carbon to nitrogen ratio and quantity of organic amendment interactively affect crop growth and soil mineral N retention 碳氮比和有机改良量对作物生长和土壤矿质氮保持有交互影响
Crop and Environment Pub Date : 2022-09-01 DOI: 10.1016/j.crope.2022.08.001
Maartje van der Sloot , David Kleijn , Gerlinde B. De Deyn , Juul Limpens
{"title":"Carbon to nitrogen ratio and quantity of organic amendment interactively affect crop growth and soil mineral N retention","authors":"Maartje van der Sloot ,&nbsp;David Kleijn ,&nbsp;Gerlinde B. De Deyn ,&nbsp;Juul Limpens","doi":"10.1016/j.crope.2022.08.001","DOIUrl":"10.1016/j.crope.2022.08.001","url":null,"abstract":"<div><p>Using organic amendments to improve arable soils in the long term is a careful balancing act of applying amendments with the right carbon to nitrogen ratio (C:N ratio) at adequate quantity to avoid nitrogen (N) leaching while promoting or retaining crop growth in the short term. So far, most studies examining the relationship between C:N ratio and N mineralization and immobilization were done without plants. In this study we explored how crop biomass and N leaching change with increasing C:N ratio and quantity of organic amendments to arable soil. We conducted an open-air mesocosm experiment with organic amendments application across a range in C:N ratio (10 to 60) and quantity (10 to 50 ton ha<sup>-1</sup>) to sandy arable soil using a full-factorial design. Spring wheat was planted and grown for six months during which three rainfall events were simulated to test treatment effects on N leaching. Applying amendments with a C:N ratio of 20 and higher decreased crop biomass and increased mineral soil N, while amendments with a C:N ratio of 10 had the opposite effect. Applying larger quantities of amendments reinforced the effect of the C:N ratio on crop biomass. N leaching remained unaffected by either amendment C:N ratio or quantity or even mineral fertilizer as N leaching only occurred in the control treatment without plants. Our results suggests that growing a crop is adequate to prevent N leaching. Applying organic amendments do not pose a different risk regarding N leaching when compared to mineral fertilizer and slurry.</p></div>","PeriodicalId":100340,"journal":{"name":"Crop and Environment","volume":"1 3","pages":"Pages 161-167"},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2773126X22000338/pdfft?md5=68e44a3d801db7a118b5933f7e53712b&pid=1-s2.0-S2773126X22000338-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88158892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
The role of storage reserves and their mobilization during seed germination under drought stress conditions in high and low oil contents rapeseed cultivars 干旱胁迫条件下高、低含油量油菜品种种子萌发过程中贮藏储备及其动员的作用
Crop and Environment Pub Date : 2022-09-01 DOI: 10.1016/j.crope.2022.09.003
Maria Batool, A. M. El-Badri, Chunyun Wang, I. Mohamed, Zongkai Wang, Ahmad Khatab, F. Bashir, Xu Zhenghua, Jing Wang, Jie Kuai, Bo Wang, Guangsheng Zhou
{"title":"The role of storage reserves and their mobilization during seed germination under drought stress conditions in high and low oil contents rapeseed cultivars","authors":"Maria Batool, A. M. El-Badri, Chunyun Wang, I. Mohamed, Zongkai Wang, Ahmad Khatab, F. Bashir, Xu Zhenghua, Jing Wang, Jie Kuai, Bo Wang, Guangsheng Zhou","doi":"10.1016/j.crope.2022.09.003","DOIUrl":"https://doi.org/10.1016/j.crope.2022.09.003","url":null,"abstract":"","PeriodicalId":100340,"journal":{"name":"Crop and Environment","volume":"54 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86153868","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}
引用次数: 3
Understanding of crop lodging and agronomic strategies to improve the resilience of rapeseed production to climate change 了解作物倒伏和提高油菜籽生产对气候变化的适应能力的农艺策略
Crop and Environment Pub Date : 2022-06-01 DOI: 10.1016/j.crope.2022.05.005
Wei Wu , Farooq Shah , Bao–Luo Ma
{"title":"Understanding of crop lodging and agronomic strategies to improve the resilience of rapeseed production to climate change","authors":"Wei Wu ,&nbsp;Farooq Shah ,&nbsp;Bao–Luo Ma","doi":"10.1016/j.crope.2022.05.005","DOIUrl":"10.1016/j.crope.2022.05.005","url":null,"abstract":"<div><p>Crop lodging has long been recognized as one of the severe yield limiting constraints for rapeseed (<em>Brassica</em> <em>napus</em>) production worldwide. Lodging directly impairs seed yield and quality by interfering with photosynthesis, dry matter accumulation and distribution, or indirectly affects these traits by causing difficulties during the harvest and postharvest stages. Environmental factors, as well as the crop growth stage at which lodging occurs, primarily influence the severity of lodging and the associated yield loss. In general, favorable growing conditions promote crop development and also stimulate lodging susceptibility. Thus, achieving the goal of higher grain yields without increasing crop lodging is very challenging as there is often a close relationship between lodging risk and yield potential. Therefore, it is imperative to explore the underlying mechanisms of the trade-off between lodging resistance and yield performance. In this regard, several classic reviews have been published since 1973, with a particular focus on small grain cereal crops. The main themes of these review papers were deciphering mechanisms of plant stem buckling and root anchorage failure; assessing and evaluating the effects of environmental and crop management factors on crop lodging (in terms of stem and root lodging), and associated yield performance. This review focuses on unraveling the lodging mechanism in rapeseed crop and attempts to explore the key environmental cues and agronomic approaches to achieve higher yields while sustaining lodging resistance. After critical and in-depth evaluation of the existing literature, we reached the conclusion that lodging resistance and seed yield of rapeseed plants can be significantly improved simultaneously through exploiting various morphological and biomechanical parameters with appropriate agronomic strategies.</p></div>","PeriodicalId":100340,"journal":{"name":"Crop and Environment","volume":"1 2","pages":"Pages 133-144"},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2773126X22000260/pdfft?md5=1dc9168e050739a7d35e66bdd0539745&pid=1-s2.0-S2773126X22000260-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83577232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
Why high yield QTLs failed in preventing yield stagnation in rice? 高产qtl为何不能防止水稻产量停滞?
Crop and Environment Pub Date : 2022-06-01 DOI: 10.1016/j.crope.2022.05.002
Dongliang Xiong, Jaume Flexas, Jianliang Huang, Kehui Cui, Fei Wang, Cyril Douthe, Meng Lin
{"title":"Why high yield QTLs failed in preventing yield stagnation in rice?","authors":"Dongliang Xiong,&nbsp;Jaume Flexas,&nbsp;Jianliang Huang,&nbsp;Kehui Cui,&nbsp;Fei Wang,&nbsp;Cyril Douthe,&nbsp;Meng Lin","doi":"10.1016/j.crope.2022.05.002","DOIUrl":"10.1016/j.crope.2022.05.002","url":null,"abstract":"<div><p>Rice plays a vital role in global food security, and its yield needs to be increased to meet escalating demand. Although many high yield quantitative trait loci (QTLs) have been identified in the last decades, rice grain yield in the main rice-producing countries is stagnating. By summarizing the yield performance of high-yielding QTL lines, we highlighted that almost all the high-yielding QTL introduced lines had no practical usage in current high yield breeding programs, mainly due to their low absolute grain yield. Further analysis showed that scientists primarily focused on spikelet number per panicle alone rather than other yield traits, and, in most of the studies, the yield increase was referenced to very old cultivars. By analyzing the yield traits correlations across cultivars in both field and pot conditions and different eco-sites using the same cultivars, we emphasized that the rice high yield will be rarely achieved by using single trait approaches due to the counteracting effects of yield components. Finally, several recommendations are provided to the next generation of biotechnological breeding in rice.</p></div>","PeriodicalId":100340,"journal":{"name":"Crop and Environment","volume":"1 2","pages":"Pages 103-107"},"PeriodicalIF":0.0,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2773126X22000235/pdfft?md5=573a256c81818d0c6f43834b4d063616&pid=1-s2.0-S2773126X22000235-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84439938","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Estimating photosynthetic parameter values of rice, wheat, maize and sorghum to enable smart crop cultivation 估算水稻、小麦、玉米和高粱的光合参数值,实现智能作物栽培
Crop and Environment Pub Date : 2022-06-01 DOI: 10.1016/j.crope.2022.05.004
Dong Wang , Winda Rianti , Fabián Gálvez , Peter E.L. van der Putten , Paul C. Struik , Xinyou Yin
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引用次数: 3
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