scholarly journals Correlation and path analysis for grain yield and yield components in chickpea (Cicer arietinum L.)

Genetika ◽  
2017 ◽  
Vol 49 (1) ◽  
pp. 273-284 ◽  
Author(s):  
Hossein Astereki ◽  
Peyman Sharifi ◽  
Masoumeh Pouresmael
Keyword(s):  
Path Analysis ◽  
Seed Yield ◽  
Yield Components ◽  
Harvest Index ◽  
Correlation Coefficients ◽  
Canopy Height ◽  
Flowering Period ◽  
Days To Flowering ◽  
Days To Maturity ◽  
Positive Direct

Chickpea is the second most important pulse crop in the world after dry bean. The aim of this study was to estimate the correlation coefficients and path analysis between seed yield, morphological traits and yield components. Twenty five chickpea genotypes, including advanced lines and commercial varieties, were grown under dryland condition at Brojerd Agricultural Research Station (west of Iran) during two seasons (2012-2013 and 2013-2014). The field experiment was arranged in a randomized complete block design (RCBD) with four replications. Combined analysis of variance revealed that the studied genotypes differed significantly in seed yield, days to flowering, days to maturity, flowering period, canopy height, number of pods per plant, biological yield and harvest index. The correlation coefficients indicated that there were significant and positive correlations between seed yield and number of pods per plant and harvest index in two years. Path analysis indicated that days to flowering, days to maturity, canopy height and width, number of pods per plant and flowering period directly and indirectly affected seed yield. Therefore, this study suggested that chickpea improvement program could be based on these traits, especially number of pods per plant and canopy height, according to positive direct effect on seed yield over two years, as selection criteria.

scholarly journals Correlation and Path Coefficient Analysis of Yield and Yield Components in Toria [Brassica rapa (L)] Genotypes

2021 ◽  
Vol 10 (11) ◽  
pp. 104-115
Author(s):  
Mahendra J. L. Salam ◽  
Nety Shraddha D. P. Singh ◽  
Rakesh Singh Rohit
Keyword(s):  
Seed Yield ◽  
Yield Components ◽  
Harvest Index ◽  
Significant Positive Correlation ◽  
Path Coefficient ◽  
Path Coefficient Analysis ◽  
Quantitative Characters ◽  
Yield And Yield Components ◽  
Days To Maturity ◽  
Positive Direct

This experiment was conducted at SGCARS Jagdalpur (C.G.), to assess correlation and path coefficient for 11 quantitative characters on 60 toria genotypes including one check Indira toria. The Analysis of variance revealed highly significant differences among the genotypes for all the characters considered under study. Correlation coefficient analysis revealed significant positive correlation for the traits silique per plant and seed per siliqua both at phenotypic and genotypic level with seed yield per plant. Path analysis revealed that silique per plant had highest positive direct effect towards seed yield per plant followed by siliqua length, days to maturity, harvest index, primary branches per plant, plant height, seed per siliqua and days to 50% flowering.

Genetic Variability, Correlation and Path Analysis in Advanced Lines of Rapeseed (Brassica Napus L.) for Yield Components

2014 ◽  
Vol 47 (1) ◽  
pp. 71-79 ◽  
Author(s):  
Ejaz Ul-Hasan ◽  
H.S.B. Mustafa ◽  
Tahira Bibi ◽  
T. Mahmood
Keyword(s):  
Brassica Napus ◽  
Path Analysis ◽  
Plant Height ◽  
Seed Yield ◽  
Yield Components ◽  
Seed Weight ◽  
Significant Positive Correlation ◽  
Brassica Napus L ◽  
Yield Improvement ◽  
Days To Maturity

ABSTRACT The present research was carried out to determine the best selection criteria for yield improvement in rapeseed (Brassica napus L.). Nine genotypes of Brassica napus were sown at Oilseeds Research Institute, Faisalabad, during the years 2011- 2012, to evaluate the means and components of variability (genotypic and phenotypic), heritability (h2 B.S), correlation (genotypic and phenotypic) and path analysis for yield and various yield components. At phenotypic and genotypic level, seed yield/plant had significant positive correlation with plant height, seeds/plant and siliqua/plant. A positive and highly significant genetic relationship was found between plant height and seeds/plant, siliqua length and seeds/siliqua, days to maturity and 1000 seed weight, days to flowering and seeds/plant, days to maturity and seeds/plant. Path coefficient revealed that the seeds/siliqua, 1000 seed weight, days to flowering, days to maturity and seeds/plant had direct positive contribution towards seed yield per plant. For rapeseed breeding seed per plant was the variable with maximum potential of selection for seed yield improvement because this trait possessed high h2 B.S, highly significant positive correlation and maximum positive direct effects with yield

scholarly journals G x E Interaction and path analysis for yield and its attributing traits in advanced genotypes of pigeonpea [Cajanus cajan (L.) Millsp.]

2016 ◽  
Vol 8 (2) ◽  
pp. 616-621
Author(s):  
Ramesh Ramesh ◽  
S. Muniswamy ◽  
Yamanura Yamanura ◽  
Bharathi Bharathi
Keyword(s):  
Grain Yield ◽  
Path Analysis ◽  
Seed Yield ◽  
Agricultural Research ◽  
Research Station ◽  
Flower Initiation ◽  
Environment Interaction ◽  
Days To Maturity ◽  
The Stability ◽  
Positive Direct

The present investigation was carried out during kharif-2012, 2013 and 2014 under rain fed condition at the Agricultural Research Station, Kalaburagi located in north eastern dry zone (Zone 2) of Karnataka, to know the stability and path analysis of the twenty genotypes of pigeonpea including check WRP-1. Highly significant differences among genotypes were observed for all the characters except primary branches. Environmental + (Genotype × Environment) interaction was significant for days to maturity, primary branch, pod bearing length, and seed yield per plant. The variance due to pooled deviation was highly significant for all the characters except for primary branches, pod length and number of seeds per pod which reflect the presence of sufficient genetic variability in the material. Out of 20 genotypes studied, RVK-275 (X=38.713, bi=1.7 and S2di = -9.67) and AKT-9913 (X =43.397, bi=2.86 and S2di= -7.42) were found to be a stable for seed yield and test weight, across the environments with good stability under rain fed conditions compared to local check. Path analysis revealed that days to flower initiation (3.942 and 1.123), days to maturity (1.493 and 0.960), primary branches (0.667 and 0.045), pod bearing length (1.153 and 0.394), number of pods per plant (0.661 and 0.463) and 100 seed weight (0.352 and 0.426) had the highest positive direct effect on grain yield both at genotypic and phenotypic level. For maximizing the grain yield per plant emphasis should be given in selection of such characters for further improvement in pigeonpea.

scholarly journals Correlation and path coefficient analyses of phenological traits, yield components and quality traits in wheat

2021 ◽  
Vol 25 (9) ◽  
pp. 597-603
Author(s):  
Hamideh Semnaninejad ◽  
Ghorban Nourmohammadi ◽  
Valiollah Rameeh ◽  
Ali Cherati
Keyword(s):  
Grain Yield ◽  
Yield Components ◽  
Harvest Index ◽  
Biomass Yield ◽  
Planting Date ◽  
Seeding Density ◽  
Quality Traits ◽  
Days To Maturity ◽  
Positive Direct ◽  
Gluten Index

ABSTRACT This study was conducted to characterize the phenological traits, yield components and quality traits affecting wheat grain yield. Three wheat genotypes were evaluated during three planting dates (November 20, December 5, and December 20) and at four seeding densities 300, 350, 400 and 450 seeds per m2 for two years. Multivariate analyses were conducted based on the interaction effects of planting date and seeding density (PS), planting date and genotype (PG) and seeding density and genotype (SG) mean values. The results of correlation analysis showed that grain yield was significantly and positively correlated with biomass yield (0.91**), days to spiking (0.81**), days to anthesis (0.83**), and days to maturity (0.57*) for PS; with biomass yield (0.94**), days to spiking (0.87**), days to anthesis (0.75*), and harvest index (0.83**) for PG; with gluten index (0.73**), harvest index (0.68*), and 1000-grain weight for SG. Path analysis revealed that biomass yield for PS and PG, harvest index for PG and SG, and gluten index for SG exhibited the highest positive direct effect. Stepwise regression analysis also revealed important effect of biomass yield, harvest index, and days to maturity for improving grain yield in different agronomical conditions.

scholarly journals Correlation Coefficient and Path Analysis in Table Pea (Pisum sativumvar. Hortense L.)

2020 ◽  
pp. 56-60
Author(s):  
Archi Gupta ◽  
Bijendra Singh ◽  
Satya Prakash ◽  
Sanghamitra Rout ◽  
Jagraj Singh
Keyword(s):  
Path Analysis ◽  
Correlation Coefficient ◽  
Seed Yield ◽  
Correlation Coefficients ◽  
Research Centre ◽  
Path Coefficient ◽  
Path Coefficient Analysis ◽  
Quantitative Characters ◽  
Positive Direct ◽  
Number Of Seeds

An experiment was layout at the Horticulture Research Centre, SVPUAT, Meerut During 2018-2020 to estimate correlation coefficients and path coefficient analysis in Table pea using 36 genotypes including eight parents and 28 F1 on nine quantitative characters. Correlation coefficient result showed that seed yield per plant have highly significant and positive correlation with number of pods per plant (0.821, 0. 818), length of first fruiting node (0.587, 0.585), number of seeds per pod (0.547, 0.517), days to 50% flowering (0.467, 0.464), plant height (0.447, 0.447), width of pod (0.387, 0.284), length of pod (0.375, 0.363) and number of first fruiting node (0.353, 0.349). Path coefficient result showed that the highest positive direct effect on seed yield per plant was exhibited by several pods per plant, several seeds per pod and days to 50% flowering at both genotypic and phenotypic level.

Study of correlation and path coefficient analysis in germplasm lines of Indian mustard (Brasica juncea L.)

2016 ◽  
Vol 36 (2) ◽  
Author(s):  
Rajeev Kumar ◽  
S. S. Gaurav ◽  
S. Jayasudha ◽  
Hitesh Kumar
Keyword(s):  
Seed Yield ◽  
Harvest Index ◽  
Block Design ◽  
Indian Mustard ◽  
Correlation Study ◽  
Path Coefficient ◽  
Path Coefficient Analysis ◽  
Days To Maturity ◽  
Biological Yield ◽  
Positive Direct

An investigation was undertaken to study the correlation and path coefficient analysis of twelve quantitative traits in 30 Indian mustard (<italic>Brassica Juncea</italic> L<italic>.</italic>) germplasm lines. The experimental material was evaluated in a randomized block design with three replications. Correlation study revealed that harvest index and total biological yield per plant exerted high significant positive correlation coefficients with seed yield at both genotypic and phenotypic level. Seed yield is negatively correlated with days to 50 % flowering and days to maturity which promotes early flowering and early maturing genotypes. Path analysis revealed that harvest index showed maximum positive direct effect, followed by total biological yield per plant, days to maturity, siliquae length at the time of maturity and seed yield per plant at both genotypic and phenotypic levels. Based on result it has been concluded that two traits namely harvest index and total biological yield per plant exerted high correlation as well as direct influence on seed yield may be considered for selection and to improve the seed yield of the mustard genotypes.

scholarly journals Inter-relationship and path analysis of different traits of two line hybrid in rice (Oryza sativa L.)

2016 ◽  
Vol 8 (4) ◽  
pp. 2016-2020
Author(s):  
Pardeep Kumar ◽  
M. K. Nautiyal ◽  
Kuldeep Kumar
Keyword(s):  
Path Analysis ◽  
Direct Effect ◽  
Seed Yield ◽  
Harvest Index ◽  
Panicle Length ◽  
Grain Number ◽  
Days To Flowering ◽  
Positive Correlation ◽  
Panicle Number ◽  
Grain Number Per Panicle

The present study was undertaken with the objective to determine the nature and magnitude of variability, degree of association between yield and it`s component characters and their direct and indirect effects on grain yield in rice. The experiment was conducted on rice in year 2013-14 at Borlaug Crop Research Center of G. B. Pant University of Agriculture and Technology, Pantnagar, Uttarakhand. All the traits had positive correlation to seed yield per plant of rice except days to flowering at genotypic level and at the phenotypic level. At phenotypic level panicle length (0.2145) and harvest index (0.4713) had highly significant level and positive correlation to seed yield per plant. Grain number per panicle (0.1550) and panicle number per plant (0.1398) showed positive and level of significant correlation with seed yield per plant. The days to flowering (-0.1879) have highly significant level with negative correlation to seed yield per plant. Path analysis showed the positive and direct effect on seed yield per plant at genotypic and phenotypic level for panicle number per plant (0.393 and 0.380 respectively), panicle length (0.236 and 0.198), grain number per panicle (0.646 and 0.112) and harvest index (0.443 and 0.448). While days to flowering (-0.175 and -0.167) and plant height (-0.037 and -0.008) had negative direct effect. The traits which showed positive correlation and positive direct effect on seed yield per plant can be used to increase seed yield for further breeding programs and may be given due importance in selection during rice breeding programme.

scholarly journals Growth and Yield Performance of Bari Mung-5 Under Different Time of Sowing

2012 ◽  
Vol 36 (2) ◽  
pp. 227-231
Author(s):  
Nargis Jahan ◽  
M M Golam Adam
Keyword(s):  
Seed Yield ◽  
Yield Components ◽  
Seed Weight ◽  
Harvest Index ◽  
Dry Matter ◽  
Growth And Yield ◽  
Lower Yield ◽  
Sowing Time ◽  
Academy Of Sciences ◽  
Pod Length

A field experiment was carried out at University of Dhaka from March to July, 2011 to study the effect of time of sowing on the growth and yield of BARI mung-5. The treatments consisted of three dates of sowing viz. March 15, April 15 and May 15. The crop responded significantly to sowing time and 15 April sowing seeds produced plants having maximum plant height (68.4 cm), leaves/plant (29.33), total dry matter/plant (17.99), branches/plant (8.17), pods/plant (11.33), pod length (8.78 cm), seeds/pod (11.17), 1000 seed weight (46.52 g), seed yield/plant (5.33 g), yield/ha (1.77 t) and harvest index (29.58 %) at harvest. The seed yield decreased by 36.8 and 49.9% when seed sown early (15 March) or late (15 May) due to production of lower yield components.   DOI: http://dx.doi.org/10.3329/jbas.v36i2.12966   Journal of Bangladesh Academy of Sciences, Vol. 36, No. 2, 227-231, 2012    

scholarly journals Variability, Traits Association And Path Coefficient Of Yield And Yield Contributing Traits Of Selected Boro Rice (Oryza Sativa L.) Germplasm

2020 ◽  
Vol 17 (2) ◽  
pp. 103-115
Author(s):  
T Chakrabarty ◽  
MZ Islam ◽  
N Akter ◽  
M Khalequzzaman
Keyword(s):  
Harvest Index ◽  
Oryza Sativa L ◽  
Direct Selection ◽  
Path Coefficient ◽  
Days To Flowering ◽  
Rice Germplasm ◽  
Parameters Selection ◽  
Days To Maturity ◽  
1000 Grain Weight ◽  
Boro Rice

Boro season is the most productive among Aus, Aman and Boro seasons. For confirming food security, we need to emphasize more on Boro season to feed more people. That’s why forty entries of Boro rice germplasm were allowed to evaluate for their genetic variations in yield and yield contributing traits, their associations and also direct and indirect effects on yield. Observing means, range and all genetic parameters, selection could be done on the basis of number of effective tillers, harvest index, filled grains per panicle, unfilled grains per panicle, days to maturity and grain yield. Traits association analysis revealed that days to flowering, days to maturity and filled grain per panicle could significantly improve rice germplasm. Path analysis estimated that direct selection based on days to flowering, days to maturity and filled grain per panicle would be efficient for improvement of rice germplasm. G5 had the highest yield along with filled grain per plant, harvest index and 1000 grain weight and it could be used as potential variety for improving yield. The germplasm G7, G19, G9 and G33 could be used in further breeding program for the improvement of rice germplasm. SAARC J. Agri., 17(2): 103-115 (2019)

scholarly journals Sequential Path Analysis for Determination of Relationship Between Yield and Yield Components in Bread Wheat (Triticum aestivum.L.)

2014 ◽  
Vol 6 (1) ◽  
pp. 119-124 ◽  
Author(s):  
Mohtasham MOHAMMADI ◽  
Peyman SHARIFI ◽  
Rahmatollah KARIMIZADEH
Keyword(s):  
Grain Yield ◽  
Path Analysis ◽  
Plant Height ◽  
Canopy Temperature ◽  
Correlation Coefficients ◽  
Early Growth ◽  
Spike Length ◽  
Lattice Design ◽  
Growth Vigor ◽  
Positive Direct

An experiment was conducted to evaluate 295 wheat genotypes in Alpha-Lattice design with two replications. The arithmetic mean and standard deviation of grain yield was 2706 and 950 (kg/ha),respectively. The results of correlation coefficients indicated that grain yield had significant and positive association with plant height, spike length, early growth vigor and agronomic score. Whereas there were negative correlation coefficients between grain yield and days to physiological maturity and canopy temperature before and during anthesis. Path analysis indicated agronomic score and plant height had high positive direct effects on grain yield, while canopy temperature before and during anthesis, and days to maturity, wes another trait having negative direct effect on grain yield. The results of sequential path analysis showed the traits that accounted as a criteria variable for high grain yield were agronomic score, plant height, canopy temperature, spike length, chlorophyll content and early growth vigor, which were determined as first, second and third order variables and had strong effects on grain yield via one or more paths. More important, as canopy temperature, agronomic score and early growth vigor can be evaluated quickly and easily, these traits may be used for evaluation of large populations.

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