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Alternate cottonpeanut intercropping: a new approach to increasing productivity and minimizing environmental impact

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Enhancing waterlogging tolerance in cotton through agronomic practices

棉花研究(英文) 2024年第1期 100页

作者： CHI Baojie dong hezhong

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Journal of Cotton Research 2023年第4期6卷 306-307页

作者： ZHANG Yanjun dong hezhong Institute of Industrial Crops Shandong Academy of Agricultural SciencesJinan 250100China

Recent publications have highlighted significant progress in utilizing agronomic interventions to alleviate waterlogging stress in cotton *** on these advancements,we provide a concise comment on the effects and underlying mechanisms of various strategies such as utilizing stress-tolerant cotton varieties,applying nitric oxide(NO),and implementing ridge ***,we recommend a combination of measures to enhance cotton’s ability to withstand waterlogging and reduce yield losses.

关键词： Cotton Waterlogging Agronomic practice

Waterlogging stress in cotton:Damage, adaptability, alleviation strategies, and mechanisms

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The Crop Journal 2021年第2期9卷 257-270页

作者： Yanjun Zhang Guangya Liu hezhong dong Cundong Li Cotton Research Center Shandong Academy of Agricultural SciencesJinan 250100ShandongChina Agronomy College of Shandong Agricultural University Tai'an 271018ShandongChina Hebei Agricultural University Baoding 071001HebeiChina College of Life Sciences Shandong Normal UniversityJinan 250014ShandongChina

Over the last few decades,waterlogging stress has increasingly threatened global cotton *** results in reduced soil oxygen,impairing the growth and development of this valuable crop and often resulting in severe yield loss or crop ***,as cotton has an indeterminate growth habit,it is able to adapt to waterlogging stress by activating three mechanisms:the escape,quiescence,and self-regulating compensation *** escape mechanism includes accelerated growth,formation of adventitious roots,and production of *** quiescence mechanism involves reduced biomass accumulation and energy dissipation via physiological,biochemical,and molecular *** self-regulation compensation mechanism allows plants to exploit their indeterminate growth habit and compensatory growth ability by accelerating growth and development following relief from waterlogging *** review how the growth and development of cotton is impaired by waterlogging,focusing on the three strategies associated with tolerance and adaptation to the *** discuss agronomic measures and prospects for mitigating the adverse effects of waterlogging stress.

关键词： Abiotic stress Adaptability Agronomic measures Cotton Waterlogging

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棉花熟性及其评价指标和方法

棉花学报 2022年第5期34卷 458-470页

作者：冯璐董合忠中国农业科学院棉花研究所/棉花生物学国家重点实验室河南安阳455000 山东省农业科学院经济作物研究所济南250100

熟性是作物生长发育快慢和成熟收获早晚的综合表现,通常用播种到成熟收获的生育期或生命周期来表示,是品种生态适应性的重要标志。选用熟性适宜的棉花品种是实现棉花正常成熟、高产优质和及时收获的重要前提和保障,而准确判断和评价棉... 详细信息

熟性是作物生长发育快慢和成熟收获早晚的综合表现,通常用播种到成熟收获的生育期或生命周期来表示,是品种生态适应性的重要标志。选用熟性适宜的棉花品种是实现棉花正常成熟、高产优质和及时收获的重要前提和保障,而准确判断和评价棉花熟性则是棉花栽培管理和遗传改良的重要依据。棉花具有无限生长习性,其熟性判断和评价较为复杂,迄今仍存争议。讨论明确了熟性的概念及其主要影响因素(遗传因素、环境因素和栽培措施),总结评述了基于生长特征(第一果枝节位、果枝发生速率和开花间隔、霜前花率等)、生育进程(生育时期、生理终止期、铃未吐絮的上部果枝数、早熟性指数等)以及综合分数的棉花熟性评价指标和方法,提出了创新完善熟性指标、建立健全熟性评价体系和创立创新熟性评价信息采集系统的意见和建议,以期为棉花轻简化机械化生产提供理论和技术支持。

关键词：棉花熟性评价指标机采棉生育进程

High-throughput estimation of plant height and above-ground biomass of cotton using digital image analysis and Canopeo

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Technology in Agronomy

Technology in Agronomy 2022年第1期2卷 25-34页

作者： Congcong Guo Liantao Liu Ke Zhang Hongchun Sun Yongjiang Zhang Anchang Li Zhiying Bai hezhong dong Cundong Li College of Agronomy Hebei Agricultural University/State Key Laboratory of North China Crop Improvement and Regulation/Key Laboratory of Crop Growth Regulation of Hebei ProvinceBaoding 071001HebeiChina Cotton Research Center Shandong Academy of Agricultural SciencesJinan 250100China

Plant height and above-ground biomass are important growth parameters that affect crop *** and non-destructive technologies of crop phenotypic monitoring play crucial roles in intelligent farmland ***,the feasibility of using these technologies to estimate cotton plant height and above-ground biomass has not been *** study proposed a low cost and high-throughput imaging method combined with Canopeo to extract the percentages of green color from high-definition digital images and establish a model to estimate the cotton plant height and above-ground *** plant height and above-ground biomass field trials were conducted at two levels of irrigation(soil water content 70%±5% and 40%-45%,respectively)using 80 cotton *** linear fitting performed well across the different cotton genotypes(PH,R^(2)=0.9829;RMSE=2.4 cm;NRMSE=11%and AGB,R^(2)=0.9609;RMSE=0.6 g/plant;and NRMSE=5%),and two levels of irrigation(PH,R^(2)=0.9604;RMSE=2.15 cm;NRMSE=6%and AGB,R^(2)=0.9650;RMSE=4.51 g/plant;and NRMSE=17%).All reached a higher fitting ***,the most comprehensive model to estimate the cotton plant height and above-ground biomass(Y=0.4832*X+11.04;Y=0.4621*X-0.3591)was determined using a simple linear regression modeling *** percentages of green color positively correlated with plant height and above-ground biomass,and each model exhibited higher accuracy(R2≥0.8392,RMSE≤0.0158,NRMSE≤0.06%).Combining a high-definition digital camera with Canopeo enables the prediction of crop growth in the *** simple linear regression modeling method and the most comprehensive model enable the rapid estimation of the cotton plant height and above-ground *** method can also be used as a baseline to measure other important crop phenotypes.

关键词： estimation ground enable

Genotypic variance in 13C-photosynthate partitioning and within-plant boll distribution in cotton

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Journal of Cotton Research 2020年第2期3卷 124-133页

作者： NIE Junjun QIN Dulin MAO Lili LIU Yanhui dong hezhong SONG Xianliang SUN Xuezhen State Key Laboratory of Crop Biology College of AgronomyShandong Agricultural UniversityTaian 271018ShandongChina Cotton Research Center Shandong Academy of Agricultural SciencesJinan 250100ShandongChina Technical Guidance Station of Cotton Production in Shandong Province Jinan 250013ShandongChina Qufu Agricultural Bureau Qufu 273100ShandongChina.

Background:Photosynthate partitioning and within-plant boll distribution play an important role in yield formation of cotton;however,if and how they interact to mediate yield remains *** objective of this study was to investigate the genotypic variance in photosynthate partitioning and within-plant boll distribution,with a focus on their interactions with regard to yield and yield components.A field experiment was conducted in the Yellow River region in China in 2017 and 2018 using a randomized complete block design with three *** partitioning of three commercial cultivars(DP 99 B,Lumianyan 21 and Jimian 169),varying in yield potential,to different organs(including bolls)at early flowering,peak flowering,and peak boll-setting stages,as well as withinplant boll distribution at harvest,and their effects on yield formation were ***:Lint yield of Jimian 169 was the highest,followed by Lumianyan 21 and DP 99 *** differences were observed in the number of inner bolls and boll weight among the three cultivars.J169 partitioned significantly more photosynthate to the fruit and fiber than Lumianyan 21 and DP 99 B and allocated over 80%of assimilates to the inner ***,Lumianyan 21 allocated a higher proportion of photosynthate to bolls and fiber,with12.5%–17.6%more assimilates observed in the inner bolls,than DP 99 ***:Genotypic variance in lint yield can be attributed to differences in the number of inner bolls and boll weight,which are affected by photosynthate ***,the partitioning of photosynthate to fiber and inner bolls can be used as an important reference for cotton breeding and cultivation.

关键词： Genotypic variance Within-plant boll distribution Photosynthate partitioning Yield Yield components

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短季棉与大球盖菇接茬两熟高效种植技术

中国棉花 2024年第5期51卷 57-60,70页

作者：聂军军崔正鹏徐士振李振怀刘国栋张冬梅张艳军战丽杰孙琳聂阳李维江代建龙董合忠山东省农业科学院经济作物研究所济南250100 山东三生万物生物科技有限公司济南250200

为解决黄河流域一熟制棉田肥药膜用量大、比较效益低,以及传统两熟制棉田投入产出比高,但秸秆利用率低等问题,在山东省不同生态区试验示范了短季棉与大球盖菇一年两熟种植模式,实现了产量和产值、经济效益和生态效益协同提升。详细介绍... 详细信息

为解决黄河流域一熟制棉田肥药膜用量大、比较效益低,以及传统两熟制棉田投入产出比高,但秸秆利用率低等问题,在山东省不同生态区试验示范了短季棉与大球盖菇一年两熟种植模式,实现了产量和产值、经济效益和生态效益协同提升。详细介绍了这一高效新模式的技术要点,比较了不同生态区大球盖菇产量与有效积温的相关性,并分析了其效益差异,为该技术的推广应用提供支撑。

关键词：短季棉大球盖菇一年两熟产量效益

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褪黑素缓解植物涝渍胁迫的生理和分子机制

植物生理学报 2023年第1期59卷 44-54页

作者：梁甜甜张艳军李燕董合忠山东师范大学生命科学学院济南250014 山东省农业科学院经济作物研究所济南250100 青岛农业大学农学院青岛266109

近年来,随着全球气候变暖,暴雨和洪涝灾害频发,涝渍胁迫已成为植物生产的主要非生物胁迫之一,研究缓解植物涝渍胁迫的机理和技术对保障植物丰产稳产十分重要。褪黑素(N-乙酰-5-甲氧基色胺酸)是一种多效分子,它不仅具有广泛的生理作用,... 详细信息

近年来,随着全球气候变暖,暴雨和洪涝灾害频发,涝渍胁迫已成为植物生产的主要非生物胁迫之一,研究缓解植物涝渍胁迫的机理和技术对保障植物丰产稳产十分重要。褪黑素(N-乙酰-5-甲氧基色胺酸)是一种多效分子,它不仅具有广泛的生理作用,还能增强植物对逆境胁迫的抵抗或适应能力,在缓解植物涝渍胁迫、减少灾害损失方面具有重要的应用潜力。本文总结了褪黑素在植物体内的生理功能,评述了褪黑素通过增强抗氧化能力、诱导耐涝相关基因差异表达和不定根发生适应涝渍胁迫的机制,重点就褪黑素与其他物质互作缓解植物涝渍胁迫的效应及其生理与分子机制进行了论述。最后,针对存在的科学问题和生产需要,指出了今后应该关注的研究方向和主要内容,以期为褪黑素在植物耐涝方面的深入研究和应用提供参考。

关键词：褪黑素非生物胁迫涝渍缓解效应

间作和轮作通过根冠互作调控作物产量形成的生理生态机制

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植物生理学报 2023年第7期59卷 1277-1290页

作者：吕晴晴何宁张永江迟宝杰张艳军张冬梅董合忠河北农业大学农学院河北保定071000 山东省农业科学院经济作物研究所济南250100 山东农业工程学院济南250100

作物轮作和间作是提高农业资源利用效率和作物生产力的重要途径。平衡协调的根冠关系是作物正常生长发育和产量品质形成的保证。轮作能增加土壤养分和有机质含量、改善土壤结构,改变土壤微生物多样性及其生态功能,影响根系形态和功能,... 详细信息

作物轮作和间作是提高农业资源利用效率和作物生产力的重要途径。平衡协调的根冠关系是作物正常生长发育和产量品质形成的保证。轮作能增加土壤养分和有机质含量、改善土壤结构,改变土壤微生物多样性及其生态功能,影响根系形态和功能,进而调控地上部冠层的生长发育和产量品质形成;间作一方面改变地下部微生态,并通过根系间的交流与互作,影响根系形态和功能,另一方面改变冠层小气候,影响作物株型和群体结构特征,调控地上部冠层光合生产、同化物分配和产量形成。间作和轮作通过改变根冠的生态生理打破了原有的根冠关系,并通过根冠互作实现根冠关系再平衡来调控产量和品质的形成。以两种作物宽幅间作、年际种植位置互换为特征的交替间作新模式兼具轮作和间作的作用,能更有效地调节和再平衡根冠关系,促进作物产量形成。本文提出了根冠关系再平衡的观点,并从这一角度论述了作物间作和轮作,特别是交替间作促进作物产量形成的效应和机理。

关键词：间作轮作生态生理根冠关系产量形成