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为客观评价多点试验中小麦新品种(系)籽粒产量的稳定性、适应性以及试点辨别力,探明适合江苏省小麦多点鉴定试验基因型与环境互作分析方法,采用AMMI模型对2018-2019年度江苏省淮南区试A组15个小麦品种(系)和淮北区试C组14个小麦品种(系)分别在12个试点的籽粒产量数据进行分析。结果表明,在两组试验中,基因型效应(G)、环境效应(E)和基因型与环境互作效应(G×E)均达到极显著水平。环境效应分别占淮南和淮北处理平方和的89.55%和70.71%,基因型效应分别占3.10%和12.89%,互作效应分别占7.35%和16.19%。基因型与环境互作中两条显著的主成分轴分别解释了淮南60.54%和淮北56.53%的互作平方和。在本年度特定的气候条件下,15个淮南小麦品种(系)中,宁红1479、金丰1701和盐麦0816属于高产稳产品系;14个淮北小麦品种(系)中,保麦1702、淮核16174属于高产稳产品系。12个试点中,淮南以南通、扬州和金湖试点的分辨力最强;淮北以响水、徐州和宿豫试点的分辨力最强。由AMMI双标图及互作效应值分析可知,两组试验的高产品系对某些试点具有特殊适应性。 相似文献
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为了解基因型、环境及其互作对我国冬小麦品质性状的影响,选择北方冬播麦区有代表性的65个小麦品种(系),分别在6个省份的11个地点种植,对其部分品质性状进行了分析。结果表明,品质指标在不同小麦品种(系)以及不同地点之间存在极显著差异;品质性状间相比,基因型(G)对籽粒硬度、环境(E)对千粒重、G×E互作对SDS沉淀值的影响较大。用AMM I模型(主效可加互作可乘)对基因型和环境互作的影响进行分析,G×E互作程度比较大的试点有北京、济南和徐州,比较小的为临汾试点,其中籽粒硬度和SDS沉淀值G×E互作程度较大的为北京和泰安试点,籽粒蛋白质G×E互作程度较大的为济南、烟台和徐州试点,千粒重G×E互作程度较大的为北京和徐州试点。不同品种的不同品质指标有不同的适宜地区,对于籽粒硬度,品种95(6)161、烟475在北京有较好的适宜性,原冬971在泰安有较好的适宜性;HS97-1、秦麦11的籽粒蛋白质含量在烟台、徐州有较好的适宜性;对于千粒重,农大3308、临旱917在北京,晋农218在济南,HS97-1在运城,中梁88303在烟台,豫农95027在徐州有好的适宜性;对于SDS沉淀值来说,中梁93646、中梁88303在北京,99G 46、中91162在石家庄,L 2-503、99G 66在泰安,农大3383在运城,郑SP 2027、临汾125在周口、徐州有好的适宜性。 相似文献
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作物品种区域试验中基因型和环境互作现象普遍存在,AMMI模型作为一种分析G×E互作关系的方法,可非常有效的补充现有区域试验分析方法的不足。AMMI模型中双标图和特殊互作效应值Dge的引人,为直观地、定量地估计试点对品种的分辨力及品种对试点的特殊适应性提供了一种非常有效的手段。通过时2001～2002年度黄淮旱地小麦区试结果进行分析,三条显著的主成分轴共解释了82.56％的互作平方和,品种洛旱2号和晋麦47属高产穗产型品种,天95-3产量校高但穗产性差,济旱6001、Q92-3074穗产性好但产量轻低,临旱619、小山211产量低而不穗;从AMMI双标图及互作效应值可看出高产类型品种中,洛旱2号除天水、黄骅、绛县试点外,具有广泛的适应性,天95-3则仅对天水、长武、成县试点有特殊适应性,长6154对铜川、鹤壁、绛县、洛阳有特殊适应性。 相似文献
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通过对安徽省2007年棉花品种区域试验C、D、E组数据的分析,结果表明:各试点的种植密度对皮棉产量遗传与环境互作效应具有显著负相关性,说明提高棉花种植密度可有效降低皮棉产量遗传与环境互作效应,因此,可提高育种试验中皮棉产量的选择效率。 相似文献
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小麦抽穗期QTL及其与环境的互作 总被引：3，自引：0，他引：3
为筛选稳定表达的小麦抽穗期QTL用于辅助选择,以旱选10号×鲁麦14的DH群体为试材,在四种环境下对抽穗期进行QTL。结果表明,该DH群体抽穗期呈连续性分布,表现为多基因控制的数量性状。四种环境下共检测到6个抽穗期加性QTLs,分别位于1B、1D、4D、6B、7B、7D染色体上,LOD值为3.13~10.88,贡献率在1.57%~6.72%之间,其中QHd-1D-1和QHd-7B与环境具有互作效应。共检测到10对上位性QTL位点,互作效应值为-0.39~0.423,表型贡献率在1.39%~4.86%之间,其中4对上位性位点与环境具有互作效应。 相似文献
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为给黄淮麦区小麦抗赤霉病育种提供新的抗性资源,以偃展1号/内乡188小麦重组自交系群体为材料,在田间充分发病的情况下,进行连续两年小麦赤霉病抗性鉴定,并通过复合区间作图,分析群体小麦赤霉病抗性的加性QTL、上位性互作及与环境的互作效应。结果表明,两年间亲本偃展1号、内乡188赤霉病抗性差异显著,群体间赤霉病病情指数变幅分别为0.16~0.70和0.26~0.90。对两年赤霉病抗性鉴定结果进行联合分析,检测到5个加性抗性QTL,1对上位性互作QTL,分别解释表型变异的32.39%和3.05%,环境互作很小(1.88%)。在5个加性QTL中,QFHB.caas-5D和QFHB.caas-4D对变异的解释率较大。群体199个家系中,共筛选到19个赤霉病抗性较好且稳定的家系。上述结果对于加快我国黄淮麦区小麦赤霉病抗性育种具有重要的意义。 相似文献
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以南方稻区企业水稻区试联合体长江中下游中籼迟熟组3个区试点的24个杂交水稻品种为试验材料,进行了稻米糊化温度和直链淀粉含量的基因型、环境以及基因型与环境互作的分析。结果表明,糊化温度和直链淀粉含量的基因型和环境差异均达到极显著水平,基因型效应大于环境及基因型与环境互作效应。同时分析了糊化温度和直链淀粉含量与其他品质性状的相关性。相关分析结果表明,糊化温度与透明度呈极显著负相关,与直链淀粉含量呈负相关但未达显著水平;直链淀粉含量与垩白度、垩白粒率呈极显著正相关。 相似文献
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为准确评价水稻区试品种稳产性和适应性,利用GGE双标图对2019年辽宁省中早熟区试6个试验点的14个参试品种的产量数据进行分析。结果表明,基因型（G）、环境及基因型与环境互作（GE）均对水稻产量存在极显著影响。6个区试点可分为3个生态类型区,源粳2号在所属的生态区表现最优。美锋稻245、源粳2号和富禾稻258属丰产稳产性较好的品种,为理想品种。区试点中开原市示范繁殖农场区分力最好,桓仁满族自治县种子管理站代表性最强,抚顺市种子管理站具有很好的区分力及较强的代表性,是较理想的区域试验点。 相似文献
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浙江省早籼稻近期区试品种品质性状的综合分析 总被引：8，自引：1，他引：7
根据浙江省1995年早籼稻品种区域试验6个试点13个参试品种11项品质性状的测定结果,研究了各品质性状的品种（基因型）、地点、品种×地点互作效应相对变异。除整精米率性状以外,其余各品质性状均以品种效应为主,而且品种效应以直链淀粉含量、胶稠度、粒型相对较大;整精米率以环境效应相对最大,环境对糊化温度、垩白面积、垩白率、精米率也有一定影响;将品种×地点互作效应分解为各参试品种×地点互作效应发现,某些品种整精米率、垩白率、垩白面积、糊化温度存在基因型×地点互作效应。 相似文献
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杂交早稻米质性状的直接和母体遗传效应分析 总被引：22，自引：4，他引：22
用包括基因型×环境互作效应的种子性状遗传模型对杂交早稻的7个品质性状进行了遗传研究。结果表明,7个品质性状都受到种子直接遗传效应和母体效应的控制。其中,糙米率、精米率、粒长和碱消值的遗传变异主要归因于母体加性效应和直接加性效应,前3个性状以母体加性效应为主,碱消值则以直接加性效应占优势。这4个性状的直接加性和母体加性效应之间还有显著的负向遗传协方差。垩白等级主要受母体加性效应控制,直接显性效应也有影响。粒宽和长宽比的变异主要归因于直接加性×环境和母体加性×环境互作效应,以后者为主,此外还有显著的直接显性效应。遗传效应预测值的结果表明,恢复系湖大242为改良杂交早稻品质的较好亲本 相似文献
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玉米穗位高遗传效应及其与环境互作效应分析 总被引：3，自引：1，他引：2
采用基因型×环境互作效应的加性-显性-母体遗传模型(ADM模型)分析方法,研究玉米穗位高性状遗传主效应及其与环境互作遗传效应。结果表明：玉米穗位高主要受显性效应控制,其次是受加性效应控制,同时还受显性×环境互作效应、母体×环境互作效应不同遗传控制体系基因型×环境互作效应显著影响。对穗位高性状的选择效果受环境影响较大,宜在较晚世代进行选择。育种中根据亲本穗位高在不同环境中遗传效应预测值组配杂交组合,提高玉米穗位高性状的选择效率。 相似文献
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采用基因型×环境互作效应的加性-显性-母体遗传模型(ADM模型)分析方法,研究玉米叶片、子粒、茎秆、叶鞘、苞叶、穗轴等含水量遗传主效应及其与环境互作遗传效应。结果表明,子粒含水量同时受加性效应、显性效应、母体效应控制;叶片含水量同时受加性效应、显性效应遗传主效应控制;茎秆受显性效应遗传主效应控制。子粒、叶片、茎秆含水量等性状不同遗传控制体系受基因型×环境互作效应显著影响,对这些性状的选择效果受环境影响较大,宜在较晚世代进行选择。 相似文献
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不同环境条件下粳型杂交稻稻米外观品质性状的遗传效应 总被引：28，自引：0，他引：28
摘要： 采用包括基因型×环境互作效应的种子遗传模型,对粳型杂交稻稻米外观品质性状进行了遗传研究。结果表明各外观品质性状除了受种子、细胞质和母体植株等遗传主效应控制外,还明显受到基因型×环境互作效应的影响。其中糙米长、长宽比和长厚比性状以遗传主效应为主,而透明度性状以基因型×环境互作效应为主。多数稻米外观品质性状的狭义遗传率较高,其中糙米长、长宽比、长厚比、垩白度性状以普通狭义遗传率为主,而透明度性状则以互作狭义遗传率为主。另外,根据性状的遗传效应预测值对各亲本的育种利用价值作了评价。 相似文献
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《Field Crops Research》1998,59(3):163-173
The value of germplasm-specific and general indexes of selection based on morphophysiological traits was assessed as an alternative to conventional yield-based selection for grain yield improvement of durum wheat in a semi-arid Mediterranean region. General indexes were developed from the evaluation of a collection of 503 landrace accessions. Specific indexes were also defined for each of the durum wheat types mediterraneum typicum and syriacum as well as for a third germplasm group including mostly Mediterranean material pertaining to neither of these types. Indexes included two or three traits among the following: displacement from optimal heading date (difference in absolute value of days from the mean heading date of three control cultivars), early growth vigour, kernels per spike and kernel weight, the two yield components being alternative to each other. The efficiency of selection criteria was assessed in another set of 64 entries in terms of predicted yield responses and actual yield gains over target environments other than that of selection. Each of the three environments acted by turns as the selection environment and the remaining two as the target environments. These environments allowed for the assessment of selection criteria over a wide range of seasonal rainfall and mean yield levels. Large genotype×environment interaction was observed for yield and early vigour. Ranking of selection indexes for predicted and actual yield responses were fairly consistent, indicating an advantage of general indexes. The best among them, including heading displacement and kernels per spike, was, on the average, 20% and 11% more efficient than yield-based selection in terms of predicted and actual responses, respectively. The advantage of this index was the consequence of the absence of covariation and the moderate to high values of genetic correlation with yield over target environments, heritability and ratio of genotypic to genotype×environment interaction variance of its component traits. 相似文献
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Five cultivars were studied for 3 years to estimate the genotype × environment interactions. Plant height was studied at four locations. The tuber characters, yield, type, number, and specific gravity were studied at three locations. There were no significant clone × location or clone × year interactions. The clone × year × location interaction was significant for plant height and tuber yield. The clone × replication in year and location interaction was significant for all characters studied. The theoretical variance of a clonal mean was used to determine the most efficient allocation of plots. The largest reduction in standard error of the mean was obtained by increasing locations. Comparisons of standard errors of differences in percentages of the observed mean were also made to estimate precision obtained with specific testing procedures. 相似文献
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Grain quality traits play an important role in the economic prosperity of commercial rice markets. The objective of our research was to identify candidate molecular markers associated with three grain quality and flowering traits in a collection of elite rice japonica inbred lines evaluated in five U.S. states. Candidate marker effects were associated with the traits mapped within regions reported from previous QTL analyses while several new allelic interactions were also detected. Common markers for each trait were observed across two or more locations, and two-way interactions unique to a single location were also found. Significant genotype × location interactions were detected while broad-sense heritability estimates were low for all characters. All but one selected marker effect was associated with a reduction in apparent amylose content. A reduction in heading date at three locations was observed with one marker as a main effect or as a component of two-way interactions that mapped ∼ 5 cM from the Hd3a flowering locus. The majority of selected effects for head rice were associated with modest to substantial increases in value. Marker loci and their interactions identified in this study highlighted targeted regions for future association studies and marker-assisted breeding efforts of grain quality traits. 相似文献
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Genotype X environment interactions were estimated for several traits in potato from a combined analysis of 11 genotypes grown at 3 locations for 2 years. Genotype X location X year and Genotype X location interactions were significant for the majority of the traits studied. Yield, reducing sugar content, dry matter content, leaf area, plant height and starch content should be tested over multiple locations and years in order to separate the genotype × environment interaction components from the total genotypic variance. 相似文献
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《Field Crops Research》1998,56(3):271-286
Twenty-two different methods (parametric, nonparametric and multivariate) used for analysing genotype×environment (G×E) interaction were compared by applying them to two sets of experimental data (15 faba bean cultivars×12 environments and 11 pea cultivars×16 environments). A principal components analysis was performed on the rank correlation matrix arising from the application of each method. The 22 methods can be categorized, in both sets of experimental data, in three groups: (1) those which are mostly associated with yield level and show little or no correlation with stability parameters; (2) those in which both yield level and stability of performance are considered simultaneously to reduce the effect of G×E interaction; and (3) those methods which only measure stability. This analysis also separated those methods based on an agronomic concept of stability from those which are based on a biological one, as well as distinguishing between `dynamic' and `static' stability-based methods. 相似文献