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Resolved concerns after 28 years of Bt cottonin China

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Journal of Cotton Research 2024年第3期7卷 334-337页

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

Bacillus thuringiensis Berliner(Bt)cotton was widely grown in China from *** then,it has resulted in many misunderstandings and concerns about Bt ***,extensive research and practical experience over the past 28 years in China have led to the resolution of many of these *** short review explores how the concerns has been resolved,and provides valuable insights for the future utilization of genetically modified products.

关键词： Bt cotton Concerns Resolution

Enhancing waterlogging tolerance in cotton through agronomic practices

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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

Alternate cotton-peanut intercropping:a new approach to increasing productivity and minimizing environmental impact

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Journal of Cotton Research 2024年第1期7卷 101-103页

作者： CHI Baojie dong hezhong College of Agricultural Science and Technology Shandong Agriculture and Engineering UniversityJinan 250100China State Key Laboratory of Nutrient Use and Management Institute of Industrial CropsShandong Academy of Agricultural SciencesJinan 250100China

Recent publications have highlighted the development of an alternate cotton-peanut intercropping as a novel strat-egy to enhance agricultural *** this article,we provide an overview of the progress made in the alternate cotton-peanut intercropping,specifically focusing on its yield benefits,environmental impacts,and the underlying *** addition,we advocate for future investigations into the selection or development of appropriate crop varieties and agricultural equipment,pest management options,and the mechanisms of root-canopy *** review is intended to provide a valuable reference for understanding and adopting an alternate intercropping system for sustainable cotton production.

关键词： Cotton Peanut Alternate intercropping Productivity

On the Preparation and Implementation of Research Budget in Agricultural Institutes

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Asian Agricultural Research 2014年第8期6卷 98-100页

作者： Xia LI hezhong dong Cotton Research Center Shandong Academy of Agricultural Sciences

Over the years,more attention has been focused on the implementation than on the preparation of the research budget in the agricultural institutes of China,resulting in the unscientific and unreasonable budgeting of research funds. The practical implementation of the research funds has also been adversely affected. In this paper,the problems as well as the root causes of those problems in the budgeting and implementation of research funds were analyzed,and corresponding solutions and suggestions were also presented.

关键词： Research funds Budget preparation Budget implement

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

间(套)作对棉田病虫害的防控效应及其风险控制

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棉花学报 2019年第4期31卷 341-351页

作者：迟宝杰董合忠山东棉花研究中心

棉花是病虫害发生最为严重的大田作物之一,近年来基于棉田间作套种的棉花病虫害生态治理成为研究的热点。合理的间作套种可以通过改变农田的生态结构和环境条件,提高天敌的种群数量,降低或抑制害虫的种群密度,进而起到有效控制病虫害的... 详细信息

棉花是病虫害发生最为严重的大田作物之一,近年来基于棉田间作套种的棉花病虫害生态治理成为研究的热点。合理的间作套种可以通过改变农田的生态结构和环境条件,提高天敌的种群数量,降低或抑制害虫的种群密度,进而起到有效控制病虫害的作用,是棉花病虫害防控的一条重要途径。同时,棉田间作套种控制病虫害也存在一定的局限性,不合理的间作套种更是存在提高用工投入、增加病虫防治难度、加重病虫为害等多种风险。评述了棉田间作套种对防控棉花病虫害的效应及其机制,总结提出了棉田间作套种存在的风险和防控途径,对今后应用间作套种生态治理棉花病虫害的前景和研究方向作了展望。

关键词：棉花间作套种病虫害生态防治风险控制

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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

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棉花对淹水胁迫的适应机制

棉花学报 2015年第1期27卷 80-88页

作者：张艳军董合忠山东棉花研究中心/农业部黄淮海棉花遗传改良与栽培生理重点实验室济南250100 山东大学生命科学学院济南250100

淹涝是造成棉花减产的重要灾害因素。在淹水胁迫下,棉花的生长发育会受到不利影响,中、重度持续淹水还会引起棉花减产甚至绝产。但是,棉株自身具有完整的适应保护机制,遭受淹水胁迫后通过启动逃避机制、静止适应机制和再生调节补偿机制... 详细信息

淹涝是造成棉花减产的重要灾害因素。在淹水胁迫下,棉花的生长发育会受到不利影响,中、重度持续淹水还会引起棉花减产甚至绝产。但是,棉株自身具有完整的适应保护机制,遭受淹水胁迫后通过启动逃避机制、静止适应机制和再生调节补偿机制,适应淹水胁迫、减少涝害损失。本文重点就棉花对淹水胁迫的3个适应机制进行了详细论述,就淹水胁迫对棉花生长发育、生理特性和产量性状的影响以及缓解棉花淹水伤害的主要措施与方法也作了简要评述。

关键词：棉花淹水胁迫适应机制逃避机制静止适应机制再生调节补偿

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