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国家食用豆产业技术体系绿豆新品种（系）联合鉴定 总被引：1，自引：0，他引：1
分析了国家食用豆产业技术体系2016-2017年24个绿豆新品种（系）在20个试验点的鉴定结果,以期为新品种（系）的进一步示范推广提供参考。结果显示,不同生态区绿豆表型差异明显,以株高、主茎分枝数、单株荚数和单株产量的变异最明显（平均变异系数均介于20%~40%）,单荚粒数、百粒重、生育期变异不明显（平均变异系数均介于10%~20%）。综合分析发现,冀绿0816、JLPX02、品绿2011-06的生态适应性最广,在20个参试点均适宜种植,适应性最差的为苏绿16-10,仅在江苏南京能够正常生长成熟。根据表型及产量表现,分别筛选出适宜不同生态区种植的绿豆新品种（系）,为这些品种（系）的进一步示范推广奠定基础。 相似文献
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陶珂何流蔡诚汪文彦徐超艳 《种子科技》2019,(18):13-14
为了鉴定青岛农业大学各位教授专家新近选育青农系列小麦新品系的生态适应性,加快试验筛选推广进程,通过异地鉴定小麦新品系适应性、抗逆性、丰产性等,确定小麦新品系最佳种植区域。安徽省紫芦种业有限公司承担了2018-2019年度青岛农业大学小麦新品系宿州试验筛选任务计划,对筛选试验情况进行了总结。 相似文献
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吉豇2号是吉林省白城市农业科学院食用豆研究所于2009年从当地农家品种双色豇豆中选择优良变异单株系统选育而成的豇豆新品种。2016-2017年参加国家豇豆新品种联合鉴定试验,平均产量为142.98 kg/667m2,比对照中豇1号增产12.15%,居第1位。2018年参加国家豇豆新品系联合生产试验,平均各试点产量为152.9 kg/667m2,比对照中豇1号增产9.29%,居第1位。2020年通过中国作物学会食用豆专业委员会鉴定（鉴定编号：国品鉴豇豆2020002）。 相似文献
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小型冬瓜新品系（小-1）是贵州省农科院园艺所选育的具有瓜型小（单瓜重2～3kg）、品质优良、产量高、性状稳定的株系。2003～2004年进行品比试验，2003～2005在铜仁、黄平、遵义、关岭、望谟5个试点进行区域试验，2004～2005进行生产试验。该品系经品比试验、区域试验和生产试验示范鉴定，平均单产达5808.8kg/667m2以上，比对照穗小一号增产17.60%，比蓉抗一号增产16.6%，差异均达显著水平。该品系适应性好，抗病性强，果型长椭圆形，果皮灰绿色，坚韧，肉质致密，肉质层厚4～6cm，全生育期130～140d，耐贮运。 相似文献
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为筛选云南省不同生态区、不同栽培水平条件下的优良新品种,为该区域玉米新品种精准推广和培育提供参考依据。本研究以9个玉米品种（系）在云南省15个试点的区域试验籽粒产量数据为研究对象,通过AMMI模型和GGE双标图分析方法分析不同玉米品种（系）在云南省不同试点的丰产性、稳定性和适应性,同时综合评价参试地点的鉴别力和代表性。结果表明：基因型效应、环境效应以及基因型与环境的互作效应均对参试品种产量产生极显著影响;综合产量、AMMI模型分析及GGE双标图结果,G3（文17-115）、G6（文15-5851）和G5（文17-5313）属较理想品种;E15（普文镇试验点）和E2（石林县试验点）是综合性较好的试点,均具有较强的区分力和代表性。AMMI模型和GGE双标图分析的侧重点不同,但品种评价结果基本一致,两种方法优势互补,可以用来作为全面有效地评估品种和试点的理想工具。 相似文献
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对2010-2011年河南省小麦区域试验濮阳试点43个参加试验的小麦品系进行了品质性状分析,参试品种的丰产稳产性及是否优质是小麦育种中最主要的目标之一,也是评价优良品种(系)的重要指标,目的就是及时准确地鉴定育成或引进新品种(系)的丰产稳产性和适应性,并为生态区划、品种布局、合理利用提供科学依据,进一步明确当前河南省区试品系品质性状的 相似文献
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通过对20个大豆品系进行比较试验,确定大豆新品系在宿州地区的丰产性和适应性。结果表明:通过6个农艺性状相关性分析得出单株荚数和单株粒数同产量呈显著正相关,郑1307、商豆1316、SK42、鲁0126、汾豆92产量较高,农艺性状较好,可以在宿州地区作为优良的遗传资源进行利用。 相似文献
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绿豆机械化生产是未来绿豆生产可持续发展的方向。在南阳盆地种植28个绿豆品种（系）,分析其农艺性状与第1批荚果产量的关系,为适宜机械化的绿豆育种提供参考。结果表明,第1批荚果产量与其主要性状的关联顺序为单株荚数>单荚粒数>主茎节数>株高>生育期>荚长>百粒重>主茎分枝数,其中与单株荚数呈极显著的正相关性（P<0.01）,与单荚粒数、主茎节数、株高、生育期和荚长呈极显著的负相关性;通过表型聚类发现,绿豆品种（系）遗传基础狭窄,在改良适宜机械化生产性状的同时,应拓宽品种（系）的遗传背景。 相似文献
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豇豆种质资源农艺性状的相关性、主成分及聚类分析 总被引：2，自引：1，他引：1
为给豇豆育种中品种资源的合理利用提供依据,对41份豇豆品种资源15项主要农艺性状进行相关性、主成分和聚类分析。结果表明,枯萎病发生程度的变异系数最大,与豇豆产量关系密切的单荚重和单株嫩荚数2个农艺性状,与株型、嫩荚长、单株花序数和单荚种子粒数都呈现显著正相关,单株嫩荚数与开花期、叶宽和单株分枝数呈现显著负相关。15个主要农艺性状可以归纳为5个主成分,第1主成分包括株型、初花节位、嫩荚长、单荚重、单荚种子粒数、单株花序数、单株嫩荚数和单株分枝数;第2主成分包括开花期、叶长和叶宽;第3主成分包括种皮颜色和嫩荚宽;第4主成分包括嫩荚颜色;第5主成分包括枯萎病发生程度。41份豇豆种质资源在遗传距离为25处分为2大类,在遗传距离为15处分为Ⅰ、Ⅱ、Ⅲ类,其中第Ⅰ类的品种优势明显,具有较好的应用前景。 相似文献
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为了探索在不同生态条件下,二系法甘蓝型油菜杂交组合的遗传效应及杂种优势表现。本研究选用6个核背景不同的甘蓝型油菜恢复系作为亲本,根据NCⅡ遗传交配设计配置了36个杂交组合,分别在大荔和张掖两个不同生态区种植,在成熟期对其进行性状调查,采用朱军的ADE模型进行数据分析。结果表明,产量性状不同程度都受到基因的加性、显性、及其与环境互作效应的影响,其中单株角果数和千粒重主要受到加性效应的影响,单株产量和角粒数主要受到显性效应影响;在与环境互作中,单株产量、单株角果数和千粒重的各遗传效应都与环境互作达到了显著性,而角粒数的遗传性相对稳定;农艺性状在基因型与环境互作中有效分枝部位和一次有效分枝数受到环境效应影响较大;在遗传相关性中,单株产量与单株角果数、角粒数和千粒重的表现型相关系数和基因型相关系数均达到了极显著性水平;杂交组合的杂种优势总体表现出F1代优于F2代。此研究结果对二系杂交组合选配有一定的指导意义。 相似文献
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Combining ability analysis and association of yield and yield components among selected cowpea lines 总被引：1，自引：0，他引：1
The study was carried out to determine combining ability and association of yield and yield components among crosses derived
from seven selected cowpea (Vigna unguiculata (L.) Walp) parents. Twenty-one hybrids were generated from diallel crosses excluding reciprocals. Hybrids along with seven
parents were studied for combining ability and phenotypic correlations for seed yield and eight yield components. The result
indicated that the general combining ability (gca) and specific combining ability (sca) were significant for most characters indicating the importance of both additive and non-additive genetic components. Additive
gene action was important for eight characters except pod number, whereas non-additive gene action was not important for nodule
number and grain yield. Parental lines IT86D-716 and IT81D-985 were found to be good general combiners for grain yield and
other traits. The most promising specific combiners for yield and yield components were from crosses including IT87D-697-2 × IT86D-716,
IT88D-867-11 × IT86D-716, IT93K-624 × IT87D-697-2, and IT87D-697-2 × IT92KD-405-1. Significant positive phenotypic correlations
were observed between seed yield with pod length (POL), number of pods per plant (PON), and number of seeds per pod (SPD).
POL, pod number per plant, SPD, and grain yield were identified as the best selection criteria that could be used in cowpea
breeding programs. 相似文献
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The F2 and backcrosses of a cross between two vegetable cowpea (Vigna unguiculata L. Walp) varieties with contrasting characteristics
were evaluated for pod yield and its components, with the aim of understanding the genetic basis of these characteristics.
A four-parameter model incorporating the additive, dominance and additive × additive genetic components fitted the data for
pod yield and clusters per plant. The additive and additive × additive effects were positive and were larger than the dominance
component. The relatively large additive and the predominantly positive dominant effects suggest that selection would be effective.
Pod weight had high broad (84%) and narrow sense heritability (75%) and can be effectively selected for in the early generations.
The study suggested that vegetable cowpea improvement programs should focus on selecting for clusters per plant and average
pod weight in the early generations, while selection for dry pod yield could be delayed to later generations. It was concluded
that pods per plant may be a useful selection criterion in multi-location trials aimed at selecting for stability of yield.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
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I. O. Obisesan 《Plant Breeding》1992,108(2):162-168
Three crosses of cowpea (Vigna unguiculata [L.] Walp) were used to assess the effectiveness of two selection procedures in cowpea. The selection procedures were pedigree selection (PD) and single seed descent selection (SSD). Lines developed through each procedure were yield tested and selected at F6 and F7 for PD and SSD, respectively. The selected lines for both procedures were compared at F8 for grain yield per plant (YLD), number of pods per plant (NPO), and pod development period (PDP), in two locations. Lines developed through both procedures differed more in their population means than in the performance of their top 10% or highest yielding lines. There was no consistent relationship between magnitude of genetic variability and percentage of superior lines obtained from each procedure. Both procedures have been effective in producing superior genotypes for yield and number of pods. The PD method produced superior transgressive segregants in two out of the three crosses for PDP. SSD allowed a more rapid generation than PD. 相似文献
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The phenotypic expression and heritability of quantitative traits vary due to genotypic differences, environmental influences
and genotype by environment interactions. The objective of this study was to determine variance components and heritabilities
of seed yield and its components in cowpea. Field experiments were conducted at three locations, three planting dates using
ten diverse cowpea genotypes during 2004/2005. The experiments were laid out in the randomized complete block design with
three replications. Results indicated significant interactions (P ≤ 0.01) among genotypes, locations and planting dates. The genotypic variance contributed ≥50% of the total phenotypic variance
for the numbers of days to 50% flowering, seeds per pod, productive branches per plant and seed yield. The heritabilities
of the numbers of days to 50% flowering were estimated at 50%, pods per plant (23%), days to maturity (66%), productive branches
per plant (53%), 100 seed weight (11%) and seed yield (55%). The presence of considerable degree of genotypic variance among
tested genotypes under various environments suggests that success in cowpea breeding could possibly be achieved through direct
phenotypic selection. 相似文献
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研究绿豆新品种（系）主要农艺性状的变异及其在产量构成中的作用,为绿豆高产体系的建立提供科学依据。以国家食用豆产业技术体系绿豆新品种（系）联合鉴定试验（2016-2017年）的25份绿豆新品种（系）为试验材料,对其株高、主茎节数、单株荚数等8个农艺性状进行了变异、相关及通径分析。结果表明,荚粒数变异系数最小,仅7.30%（2017年）,产量变异最广泛,变异系数为35.86%（2016年）;产量除与荚长（r=0.609）、荚粒数（r=0.679）呈极显著正相关外,与其他性状相关不显著;通径分析结果表明,对产量的直接通径系数荚长>株高>荚粒数>单株荚数>百粒重>主茎分枝数>主茎节数,并且株高、单株荚数、荚粒数、荚长和百粒重对产量的直接作用为正值,主茎节数、主茎分枝数对产量的直接作用为负值;综合分析表明,在绿豆高产育种中,荚粒数受外界环境影响较小,与产量的相关性最大,且直接与间接效应均表现优良,应作为主要研究对象。荚长和百粒重的直接效应和间接效应均为正值,也应作为主要筛选对象,同时还要兼顾其他性状的相互影响与均衡发展,充分挖掘种质资源潜力。 相似文献
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为应用防虫网进行豇豆的科学种植与管理,本文采用80目全封闭与半封闭防虫网的栽培模式下,观测其对豇豆生长特性、品质及产量的影响。结果表明,与露地栽培相比,防虫网栽培模式下豇豆的抽蔓期、结荚期有所提前,采收期有所延长,产量显著提高;在半封闭防虫网下抽蔓期提前2 d,结荚期提前4 d,采收期延长12 d,产量提高56.47 %;在全封闭防虫网下,抽蔓期提前1 d,结荚期提前4 d,采收期延长16 d,产量提高50.86 %;同一时期内,半封闭与封闭防虫网下豇豆的株高、茎粗、节间长、叶长和叶宽均优于露地栽培;与全封闭防虫网相比,半封闭防虫网下豇豆叶绿素指数显著升高。综上,建议采用80目半封闭防虫网室栽培豇豆。 相似文献