Correlations among flowering

The present investigation was carried out during 2010-12 to establish the correlation among flowering, pollen viability and malformation in 15 mango cultivars namely Amrapali, Bhadauran, Dushehari, Erwin, Husnara, Janardan Pasand, Langra, Mallika, Neelum, Primor de Amoreira, Pusa Arunima, Sensation, Tommy Atkins, Totapuri Red Small and Zill at the Division of Fruits and Horticultural Technology, Indian Agricultural Research Institute, New Delhi.

5p cothumenhmong11 11-05-2021 8 2   Download

Twelve genotypes of rice (Oryza sativa L.) were evaluated during Kharif 2015 to study the nature and extent of correlation among yield and yield attributing characters, number of tillers per plant, plant height, panicle length, number of grains per panicle, 1000-grain weight, days to first flowering, days to 50 per cent flowering, days to maturity, grain yield per plant.

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The present study was conducted with 48 oats genotypes and were grown during Kharif, 2013 to assess the performance, variability, heritability, genetic advance and correlation coefficient analysis using fourteen different yield and yield contributing characters viz.

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An experiment was conducted with 32 cultivars of dahlia (Dahlia variabilis L.) to study correlation and path analysis among the yield attributing traits and their effect. Correlation among component characters showed that flower yield per plant had a highly significant positive genotypic correlation with leaf area index (0.617), crop duration (0.771), flowering duration (0.800), tuber weight (0.668) and change in fresh weight at day 3.

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To investigate the water-deficit tolerance, 3 cotton genotypes (Bunny Bt, Pratima and Anjali.) were grown under normal irrigation and water-deficit conditions. Moisture is a key factor affecting growth and yield of Cotton in which stress is the most important factor limiting crop productivity due to adverse effect on fruit production, square/boll shedding and lint yield as well as fiber quality properties of Cotton. If water supply is limited during boll development it could result in significantly lower yields. In this study stress imposed with four watering treatments viz.

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Experiment was conducted to study the correlation studies in heliconia genotypes. Number of stalks per plant showed positive and significant correlations with number of shoots per plant (0.961 and 0.886), number of leaves per plant (0.784 and 0.712), leaf length (0.590 and 0.576), plant height (0.502 and 0.479), number of flowers per bract (0.476 and 0.444), leaf area (0.448 and 0.440), vase life (0.425 and 0.413) and stalk length (0.405 and 0.398) at both genotypic and phenotypic level.

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Significant differences were observed among the genotypes for all the traits, indicated presence of sufficient variation. The estimates of PCV and GCV were high for first fruit producing node. Moderate PCV and GCV were noticed for days to 50 per cent flowering, plant height, fruit yield per plant, fruits per plant, nodes per plant and internodal length.

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Genetic parameters, variability, heritability and genetic advance were studied among 20 groundnut cultures rabi-2016-17 to study the variation and to identify traits of high heritability. The characters hundred kernel weight, hundred pod weight, dry pod yield and kernel yield had high GCV, heritability and GAM were found to be under the control of additive gene action, while the traits shelling percentage, sound mature kernel and final plant stand with moderate heritability and high genetic advance appeared to be under the predominant influence of additive gene action.

6p cothumenhmong5 17-05-2020 17 2   Download

Genetic variability and correlation analysis of vegetative, floral, nut and yield characters were studied with 11 tall and 3 dwarfs which include 6 indigenous and 8 exotic coconut genotypes from diverse geographic origin. Analysis revealed a high degree of variability for most of the character studied.

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The study was conducted among the thirty two rice varieties of the Breeders Seed Production chain of Tamil Nadu during Kharif 2016-17. Days to 50 per cent flowering, plant height, leaf length, number of panicles per plant, panicle length, number of grains per panicle, 1000 grain weight, time to maturity and single plant yield showed significant difference between varieties.

5p chauchaungayxua5 08-05-2020 17 1   Download

Genetic variation and association among nine characters were studied in 34 advanced breeding lines of groundnut for WUE and yield related traits during summer 2015. Higher estimates of PCV and GCV were recorded for Pod Yield per plant followed by Kernel Yield per plant and Pods per plant indicating the presence of sufficient variability between advanced breeding lines.

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Flower plays an important role in people‟s celebration and everyday lives. Among the floriculture, gladiolus is one of them. Cultivation of gladiolus flower produces huge emphasis due to less maintenance and high economic return. Even though, the diseases on gladiolus have major economic impact on quality and quantity. Moreover, weather condition is one of the major factors on disease cause and its development, which is directly proportionate to different parameters viz, Temperature, Rainfall and Humidity.

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The study was conducted on correlation and path analysis among the different characters influencing the flower yield of twelve different genotypes of China aster. The experiment was carried out in Randomized Block Design during kharif season of 2016-17 under semi-arid climatic condition at Experimental block of Department of Horticulture, College of Agriculture, UAS, Raichur.

10p kethamoi4 16-04-2020 25 1   Download

An investigation was carried out in the BC4F4 generation with 95 plants for studying variability, correlation and path analysis. Low PCV and GCV values were recorded for the characters namely, days to fifty percent flowering, plant height, panicle length, number of productive tillers, grain length, grain width and hundred seed weight. High heritability coupled with high genetic advance as percentage of mean was observed for plant height, panicle length, number of productive tillers, grain width, seeds per panicle.

6p quenchua4 06-04-2020 19 1   Download

Chrysanthemum is among the most interesting and possibly the oldest one among the ornamental plants possessing wide genetic diversity. In recent years, researchers have used various conventional and non-conventional breeding techniques to understand the classification studies, correlation and association both at morphological and molecular level, with the wild relatives for introducing various ornamental traits from wild types to cultivated ones.

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Poor and inconsistent yields of the Pigeonpea cultivation across different environments grown in respective seasons reduce the economic benefits for the farmers. Besides tolerances/ resistance to abiotic and biotic stresses, plant type and seed yield components of Pigeonpea are the principal determinants of the consistent yields. The contemporary research was orchestrated for the identification of QTLs for plant type and seed yield components.

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Yield is a complex character controlled by a large number of contributing characters and their interactions. For any effective selection programme, it would be desirable to consider the relative magnitude of association of various characters with yield. The path coefficient technique helps in estimating direct and indirect contribution of various components in building up the total correlation towards yield. The present study was conducted with 10 lines and bottle gourd genotypes including one check variety i.e.

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Correlation and path analysis were carried out in 16 genotypes of chrysanthemum (Dendranthema grandiflora Tzvelev) for different yield attributing traits. Among twelve different parameters to differentiate the contribution made by each parameter in the final flower yield. The results revealed that the genotypic correlations were higher than the phenotypic correlations for the characters studied, indicating the high heritable nature of the characters. The genotypic correlation of flower yield per plant was showed highly significant and positive correlation with leaf area (0.

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The correlation coefficients among 20 yield contributing traits with their path effects towards and seed yield using 70 genotypes of mung bean were investigated during Kharif 2015-16. The analysis of correlation coefficient suggested that the magnitude of genotypic correlations were higher than the corresponding phenotypic correlations.

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The present study was conducted with 33 sesame genotypes collected from different North East region of India with an objective to determine genetic variability and association among characters. Significant differences were observed for all the characters studied, except for number of branches per plant. High heritability coupled with high genetic advanced as % of mean was observed for yield per plant followed by 1000 grains weight indicating that these characters are controlled by additive gene effect. None of the characters showed significant association with yield per plant.

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