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GGE biplot analysis of yield stability and test location representativeness in proso millet (Panicum miliaceum L.) genotypes

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Journal of Integrative Agriculture 2016年第6期15卷 1218-1227页

作者： ZHANG Pan-pan SONG Hui KE Xi-wang JIN Xi-jun YIN Li-hua LIU Yang QU Yang SU Wang FENG Nai-jie ZHENG Dian-feng FENG Bai-li National Coarse Cereals Engineering Research Center Heilongjiang August First Agricultural UniversityDaqing 163319P.R.China State Key Laboratory of Crop Stress Biology in Arid Areas Ministry of Science and TechnologyNorthwest A&F UniversityYangling 712100P.R.China Anyang Academy of Agriculture Sciences Anyang 455000P.R.China Baoji Institute of Agricultural Science Qishan 722400P.R.China

The experiments were conducted for three consecutive years across 14 locations using 9 non-waxy proso millet genotypes and 16 locations using 7 waxy proso millet genotypes in China. The objectives of this study were to analyze yield stability and adaptability of proso millets and to evaluate the discrimination and representativeness of locations by analysis of vari- ance （ANOVA） and genotype and genotype by environment interaction （GGE） biplot methods. Grain yields of proso millet genotypes were significantly influenced by environment （E）, genotype （G） and their interaction （GxE）（P〈0.1%）. GxE inter- action effect was six times higher than G effect in non-waxy group and seven times in waxy group. N04-339 in non-waxy and Neimi 6 （NM6） in waxy showed higher grain yields and stability compared with other genotypes. Also, Neimi 9 （NM9, a non-waxy cultivar） and 90322-2-33 （a waxy cultivar） showed higher adaptability in 7 and in 11 locations, respectively. For non-waxy, Dalat, Inner Mongolia （E2） and Wuzhai, Shanxi （E5） were the best sites among all the locations for maximizing the variance among candidate cultivars, and Yanchi, Ningxia （El0） had the best representativeness. Wuzhai, Shanxi （e9） and Yanchi, Ningxia （e14） were the best representative locations, and Baicheng, Jilin （e2） was better discriminating location than others for waxy genotypes. Based on our results, El0 and e14 have enhanced efficiency and accuracy for non-waxy genotypes and waxy genotypes selection, respectively in national regional test of proso millet varieties.

关键词： proso millet GGE biplot yield stability test location representativeness

Performance and yield stability of maize hybrids in stress-prone environments in eastern Africa

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The Crop Journal 2020年第1期8卷 107-118页

作者： Wender Santos Rezende Yoseph Beyene Stephen Mugo Eric Ndou Manje Gowda Julius Pyton Sserumaga Godfrey Asea Ismail Ngolinda McDonald Jumbo Sylvester O.Oikeh Michael Olsen Aluízio Borém Cosme Damião Cruz Boddupalli M.Prasanna Federal University of Viçosa(UFV) P.O.Box 36570000ViçosaBrazil International Maize and Wheat Improvement Center(CIMMYT) P.O.Box 1041-00621NairobiKenya Bayer Crop Science P.O.Box 1512PetitSouth Africa National Crops Resources Research Institute(NaCRRI) P.O.Box 7084KampalaUganda Ilonga Agricultural Research Institute(ARI-Ilonga) P.O.Box 66KilosaTanzania African Agricultural Technology Foundation(AATF) P.O.Box 30709-00100NairobiKenya

Identification and deployment of high-yielding and stress-tolerant maize hybrids adapted to stress-prone agro-ecologies is important for improving the food security and livelihoods of smallholder farmers in eastern *** objectives of this study were to(i)assess the performance of maize hybrids under well-watered and drought stress conditions;(ii)evaluate grain yield stability of 65 intermediate-maturing and 55 early-maturing hybrids in 24 well-watered locations and seven drought stress locations;and(iii)identify representative and/or discriminative testing locations for increasing genetic gains for the target *** were significant differences for grain yield among early-and intermediatematuring hybrids tested under well-watered and drought stress *** the early-maturing hybrids,the top 10 hybrids produced 46.8%–73.9%and 31.2%–42.1%higher mean grain yields than the best commercial check under drought and well-watered conditions,*** the intermediate-maturing hybrids,the top 10 hybrids produced 25.2%–47.7%and 8.5%–13.5%higher grain yield than commercial checks under drought stress and well-watered conditions,respectively,suggesting improvement in the levels of drought tolerance in both early-and intermediate-maturing *** biplot analysis and a bi-segmented regression linear method identified specific early-maturing and intermediate-maturing hybrids that performed well under both well-watered and drought stress *** hybrids could be recommended for commercial production in eastern *** in Kenya was found to be the most representative and highly discriminating site among well-watered testing locations,while Kabuku in Tanzania was the least representative of test *** testing under drought stress conditions,Kiboko in Kenya was identified as the most representative *** information could be useful for allocating resources and streamlining CIMMYT maize hybrid testing in eastern Africa

关键词： Drought stress Eastern Africa Genotype by environment interaction yield stability Zea mays L.

Combining controlled-release urea and normal urea with appropriate nitrogen application rate to reduce wheat stem lodging risk and increase grain yield and yield stability

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Journal of Integrative Agriculture 2023年第10期22卷 3006-3021页

作者： ZHANG Guang-xin ZHAO De-hao FAN Heng-zhi LIU Shi-ju LIAO Yun-cheng HAN Juan College of Agriculture Shanxi Agricultural UniversityTaigu 030801P.R.China State Key Laboratory of Sustainable Dryland Agriculture Shanxi Agricultural UniversityTaiyuan 030031P.R.China College of Agronomy Northwest A&F UniversityYangling 712100P.R.China

A mixture of controlled-release urea and normal urea(CRUNU)is an efficient nitrogen(N)fertilizer type,but little is known about its effects on stem lodging resistance,grain yield,and yield stability of *** this study,a 4-year field experiment(from 2017 to 2021)was conducted to analyze the effects of N fertilizer types(CRUNU and normal urea(NU))and application rates(low level(L),135 kg ha^(–1);medium level(M),180 kg ha^(–1);high level(H),225 kg ha^(–1))on population lodging resistance,basal internode strength,lignin content and synthetase activity,stem lodging resistance,grain yield,and yield stability of *** results showed that the two N fertilizer types had the highest lodging rate under high N application rates,and the M-CRUNU treatment showed the lowest lodging *** with NU,CRUNU improved the wheat population lodging resistance under the three N application rates,mainly related to improving wheat population characteristics and breaking the strength of the second basal *** analysis showed that the breaking strength of the second basal internode was related to the physical characteristics,chemical components,and micro-structure of the *** with NU,CRUNU significantly increased wheat grain yield by 4.47,14.62,and 3.12%under low,medium,and high N application rates,*** addition,CRUNU showed no significant difference in grain yield under medium and high N application rates,but it presented the highest yield stability under the medium N application *** summary,CRUNU,combined with the medium N application rate,is an efficient agronomic management strategy for wheat production.

关键词： controlled-release urea lodging grain yield yield stability wheat

Increasing grain weight and yield stability by increasing pre-heading non-structural carbohydrate reserves per spikelet in short-growth duration rice

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The Crop Journal 2023年第6期11卷 1912-1920页

作者： Xing Li Ruichun Zhang Ge Chen Jiaxin Xie Zhengwu Xiao Fangbo Cao Izhar Ali Anas Iqbal Abdul Wahab Min Huang Jiana Chen Rice and Product Ecophysiology Key Laboratory of Ministry of Education for Crop Physiology and Molecular BiologyHunan Agricultural UniversityChangsha 410128HunanChina Hengyang Academy of Agricultural Sciences Hengyang 421101HunanChina Yueyang Academy of Agricultural Sciences Yueyang 414022HunanChina College of Agriculture Guangxi UniversityNanning 530004GuangxiChina State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources College of AgricultureSouth China Agricultural UniversityGuangzhou 510642GuangdongChina Shanghai Center for Plant Stress Biology CAS Center for Excellence in Molecular Plant SciencesChinese Academy of SciencesShanghai 200032China

Rice yield stability is a breeding goal,particularly for short-growth duration rice,but its underlying mechanisms remain *** an attempt to identify the relationship between yield stability and source–sink characteristics in short-growth duration rice,a field experiment was conducted at three sites(Yueyang,Liuyang,and Hengyang)in 2021 and *** study compared yield,yield components,source–sink characteristics,and their stability between two stable-yielding short-growth duration rice cultivars,Zhongzao 39(Z-39)and Lingliangyou 268(L-268),and two unstable-yielding short-growth duration rice cultivars,Zhongjiazao 17(Z-17)and Zhuliangyou 819(Z-819).The stability of agronomic parameters was represented by the coefficient of variation(CV).The respective CVs of yield in Z-17,Z-819,Z-39,and L-268 were 10.2%,10.1%,4.5%,and 5.7%in 2021 and 19.7%,15.0%,5.4%,and 6.5%in *** respective CVs of grain weight were 6.3%,5.7%,3.4%,and 4.5%in Z-17,Z-819,Z-39,and L-268 in 2021,and 8.1%,6.3%,1.5%,and 0.8%in *** mean source capacity per spikelet and pre-heading non-structural carbohydrate reserves per spikelet(NSC_(pre))were 7%–43%and7%–72%lower in Z-819 and Z-17than in L-268 and Z-39 in 2021 and *** mean quantum yield of photosystem II photochemistry of leaf,leaf area index,and specific leaf weight of L-268 and Z-39 were higher than those of Z-819 and Z-17 at the heading *** study suggests that high NSC_(pre),caused by great leaf traits before heading,increases source capacity per spikelet and its stability,thereby increasing the stability of grain weight and *** NSC_(pre)is critical for achieving grain weight and yield stability in short-growth duration rice.

关键词： Non-structural carbohydrate Short-growth duration rice Source-sink characteristics yield stability

Grain yield stability analysis using parametric and nonparametric statistics in oat(Avena sativa L.)genotypes in Ethiopia

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Grassland Research 2023年第3期2卷 182-196页

作者： Gezahagn Kebede Walelign Worku Habte Jifar Fekede Feyissa Holetta Agricultural Research Center HolettaEthiopia Hawassa University HawassaEthiopia Debre Zeit Agricultural Research Center Debre ZeitEthiopia Ethiopian Institute of Agricultural Research Addis AbabaEthiopia

Background:The performance of oat genotypes differs across environments due to variations in biotic and abiotic ***,evaluation of oat genotypes across diverse environments is very important to identify superior and stable genotypes for yield ***:The study aimed to assess the interaction(genotype-by-environment interaction;GEI)effect and determine the stability of grain yield in oat(Avena sativa L.)genotypes in Ethiopia using parametric and nonparametric stability ***-four oat genotypes were evaluated in nine environments using a randomized complete block design replicated three ***:The pooled analysis of the variance of grain yield showed significant variations among genotypes,environments,and their interaction *** GEI revealed the rank order change of genotypes across *** environment main effect captured 44.62%of the total grain yield variance,while genotype and GEI effects explained 28.84%and 26.54%of the total grain yield variance,*** grain yield stability was assessed based on 12 parametric and two nonparametric stability *** results indicated that genotypes with superior grain yield-showed stable performance on the basis of the stability parameters of the genotypic superiority index(P_(i)),the Perkins and Jinks adjusted linear regression coefficient(B_(i)),and the yield stability index(YSI),indicating that selection using these stability parameters would be efficient for grain yield enhancement in oat ***'s rank correlation coefficients also showed that the stability parameters of P_(i),B_(i),and YSI had a significant positive association with grain ***,grain yield had an inverse correlation with the stability parameters of standard deviation,deviation from regression (S_(di)^(2)),the Hernandez desirability index(D_(ji)),Wricke ecovalence(W_(i)),the Shukla stability variance(σ_(i)^(2)),the AMMI stability value(ASV),and environmental var

关键词： genotype-by-environment interaction grain yield oat genotype stability parameters yield stability

yield stability and Late Blight Resistance Analysis among Potato Clones Bred with Quantitative Resistance

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Journal of Agricultural Science and Technology(B) 2014年第9期4卷 683-690页

作者： Theophile Ndacyayisenga Geofrey Tusiimet Paul Gibson Rogers Kakuhenzire Rwanda Agriculture Board Crop Research and Extension Kigali 5016 Rwanda Department of Crop Science Makerere University Kampala 7062 Uganda International Potato Center Kampala 222 74 Uganda

Thirteen promising clones from population B3C2 potato genotypes （bred for quantitative resistance to late blight） obtained from the International Potato Center and three control cultivars were evaluated for four planting dates within two cropping seasons at Kalengyere Research Station in Southwestern Uganda in order to determine performance and yield stability. The analysis of variance of the relative area under disease progress curve （rAUDPC） revealed significant difference （P 〈 0.001） among genotype x planting date interaction, and significant difference （P 〈 0.001） among genotypes x fungicide treatments x planting date interaction. The analysis of variance （ANOVA） of yield revealed also significant difference among genotypes x planting date interaction and significant difference （P 〈 0.05） among genotypes x fungicide treatments x planting date interaction, showing the variable response of genotypes and the need for stability analysis. The additive main effects and multiplicative interactive （AMMI） statistical model showed that the most stable and high yielding genotypes were 396038.107, 396026.103 and 393280.82. The cultivars Victoria, Nakpot 5 and Cruza recorded low yields （below the average）, but Nakpot 5 was generally more variable, and is therefore highly adaptable to some environments.

关键词： Potato yield stability late blight resistance.

yield potential and stability in super hybrid rice and its production strategies

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Journal of Integrative Agriculture 2017年第5期16卷 1009-1017页

作者： HUANG Min TANG Qi-yuan AO He-jun ZOU Ying-bin Southern Regional Collaborative Innovation Center for Grain and Oil Crops(CICGO) Hunan Agricultural UniversityChangsha 410128P.R.China

China＇s Super Hybrid Rice Breeding Program has made significant progress over the past two decades. In this paper, we reviewed our studies on the yield potential and stability in super hybrid rice and discussed the strategies for super hybrid rice production. The results of our studies show that rice yield potential has been increased by 12% in super hybrid cultivars as compared with ordinary hybrid and inbred cultivars. The higher grain yields in super hybrid rice cultivars are attributed to larger panicle size coupled with higher biomass production or higher harvest index. However, grain yields in super hybrid rice cultivars vary widely among locations depending on soil and climatic factors. Therefore, it is important to tailor target yield to local conditions in super hybrid rice production. The target yield for super hybrid rice production can be determined by the average yield method or the regression model method. Improving soil quality is critical to achieving the target yield in super hybrid rice production. Favorable crop rotations such as rice-oilseed rape and novel soil management practices, such as biochar addition, are effective approaches to improve soil quality. It is needed to develop simplified cultivation tech- nologies for super hybrid rice to meet the changes in socioeconomic environments during the period of transition. There are such technologies as no-tillage direct seeding and mechanized transplanting at high hill density with single seedling per hill.

关键词： mechanized transplanting no-tillage direct seeding super hybrid rice target yield yield potential yield stability

yield stability of Direct-sowing and Early-maturing Excellent Brassica napus (Attar No.8)

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Agricultural Science & Technology 2012年第8期13卷 1684-1686,1816页

作者：符明联廖原李根泽原小燕张美华刘丽云南省农业科学院经济作物研究所云南昆明650205 云南省种子管理站云南昆明650031

[Objective] The aim was to analyze yield stability of attar No.8, which is direct sowing and early-maturing. [Method] Analysis was made on yielding ability, stability and adaptability of attar No.8 in Yunnan Province during 2006-2009 with DPS software and stability assessment was conducted on yield and major economic characters of the variety in different periods and experimental plots. [Result] Average yield of attar No.8 during three years in 24 plots achieved 3 379.17 kg/hm2; it grew tightly and is featured with early matureness. In addition, grain density, pod number and annul production differed little in different years and the variety in eight ecological conditions all showed high production potential, yielding ability and stability, which proved that attar No.8 is suitable to be grown in Yunnan and southern early-maturing areas in China. [Conclusion] The research provided references for selection and breeding of rapeseeds＇ variety which enjoys high and stable yield.

关键词： Brassica napus Early-maturing variety Attar No.8 yield stability

Evaluation of yield,stability and adaptability of national winter rapeseed regional trials in the upper Yangtze River region in 2017-2018

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Oil Crop Science 2020年第3期5卷 121-128页

作者： Ze’en Yu Lixia Luo Fang Zhang Meiyan Hong Xiangxiang Zhang Ruixing Guo Oil Crops Research Institute Chinese Academy of Agricultural SciencesWuhanChina National Agricultural Technology Extension and Service Center BeijingChina

Rapeseed variety needs to be tested by regional trial in multiple sites for many years before being applied in market in *** of rapeseed were affected by the interaction of sites and *** of regional trials is very important for guiding rapeseed ***(genotype main effects and genotypeenvironment interaction)biplot was used to evaluate yield,stability,adaptability,representativeness and discrimination of national winter rapeseed trials in the upper reaches of Yangtze River in *** showed that the main effects of genotype(G),environment(E)and genotypeenvironment interaction(GE)were significant(Pyield,excellent stability and adaptability,including‘Yiyou 29’,‘Xiwang 920’,‘Liyouza 108’,‘Nanyou 546’,‘Dadi 195’,‘Jiayou 1’,‘Huayouza 28’and‘Yuhua 2’.Test sites included Nanchong,Mianyang,Wanzhou,Shuangliu and Chengdu in Sichuan Province and Zunyi together with Guiyang in Guizhou Province were selected for their excellent representativeness and *** results would provide theoretical basis for rapeseed breeding.

关键词： National regional trial GGE biplot High yield yield stability Adaptability Representativeness Discrimination