Studies on Variability, Heritability, Genetic advance and Correlation in Maize <i>(Zea mays L.)</i>

Krishna, K. R.; Jakhar, Dan Singh; Rai, Abhijit; Borle, U. M; Singh, Pargat

doi:10.5958/2230-732x.2016.00139.x

Cited by 24 publications

(27 citation statements)

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“…Thus, the presence of variability in present investigation indicated the ample scope of selection for these traits. Similar trends of high significant difference among the different genotypes were observed by Parimala et al, 2011, Pinnisch et al, 2012and Patil et al, 2016in maize and Jakhar et al, 2016 in chickpea in previous studies.…”

Section: Analysis Of Variancesupporting

confidence: 84%

Mean Performance and Analysis of Variance of Thirty Genotypes for Twelve Characters Studied in Maize (Zea mays L.)

Singh¹,

Kumar²,

Ojha³

2017

Int.J.Curr.Microbiol.App.Sci

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Section: Analysis Of Variancesupporting

confidence: 84%

Mean Performance and Analysis of Variance of Thirty Genotypes for Twelve Characters Studied in Maize (Zea mays L.)

Singh¹,

Kumar²,

Ojha³

2017

Int.J.Curr.Microbiol.App.Sci

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“…Ear diameter, TSW, ABM, EL, NKPR, HI, SCH and RBM had strong indirect effect on the grain yield by ear biomass at Assosa site (Table7), and plant height exhibited strong positive indirect effect on the grain yield by ABM, EBM, TSW, NKPR, NEHPP, and EL (Table 8) which indicates the correlation coefficient with grain yield is due to the exertion of these traits. The negative direct effect of plant height on the grain yield of this finding at Bambasi is similar with the pervious finding Sreckov et al (2011) while partially contradicted with the finding of Kumar et al (2006) and Patil et al (2016) who reported that plant height and EBM showed positive direct effect on the grain yield. The positive direct effect of root biomass on the grain yield agreed with the findings of Mhoswa et al (2016) and Silva et al (2016) who reported that root dry matter and root fresh weight had positive direct effect on grain yield which directly related with the nitrogen absorption capacity of the crop that helps to afford the nutrient demand of the crop and increasing the yield.…”

Section: Genotypic Path Coefficient Analysissupporting

confidence: 77%

Untitled

2019

Greener J Agr Sci

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Maize is the second most widely grown food cereal crop cultivated in the world and consumed in various form of as part of diets of human and animals. However, its production and productivity is affected by biotic and abiotic stresses among which, soil acidity is the key factor. This field experiment was conducted to estimate the genetic variability of maize for yield and yield related traits, and determine the association of traits with grain yield at Assosa and Bambasi districts during the 2017main cropping season. The experiment consisted of limed and unlimed soil as main plots and 21 maize varieties as the sub-plots arranged in a split plot design with 3 replications. Highly significant (P<0.01) differences were observed among maize varieties in yield and yield related-traits at both locations. Moderate to high genotypic coefficient variation, heritability and genetic advance as the percentage of mean values were observed for stalk biomass, ear biomass, diameter and length, and grain yield at both locations. Highly significant phenotypic and genotypic correlations were observed between thousand seed weight and number of kernels per row, thousand seed weight and ear diameter, and number of kernels per row. The yield was highly significant and positively associated with above stalk biomass, ear biomass, thousand seed weight, and number of kernels per row at both locations at the genotypic and phenotypic level. The phenotypic and genotypic correlation and path coefficient analysis of harvesting index, above ground biomass, ear biomass, number of ears harvested per plot, number of rows per ear, and ear length and these traits also showed a direct effect on yield. The highest yield in t/ha was obtained from variety BH547 (3.04) and (7.35) at Assosa and Bambasi, respectively. Additionally, higher yield was recorded from SPRH1, BH661 and BH546 varieties at both locations. Therefore, farmers could use the above varieties in the acidic soil until other advanced varieties are developed, but the exact significant impact and duration of lime management in the acidic soil for maize needs further investigations.

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“…Days to maturity showed significant positive genotypic and phenotypic correlation with days to anthesis, days to silking, plant height and ear height. Similarly, significant positive correlation were reported for fresh ear weight and yield, days to anthesis with days to silking and days to maturity, ear height with plant height and days to silking (Patil et al, 2016;Reddy et al, 2012;Sadaiah et al, 2013).…”

Section: Resultsmentioning

confidence: 76%

Association of Traits and Adaptability of Hybrid Maize (Zea mays L.) Varieties in Western Part of Ethiopia

Firezer¹

2019

Greener J Agr Sci

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In Ethiopia, maize is one of the most important and major strategic food crop among cereal. Hybrid maize varieties plays important role as the average yield of the country increased through time. The objectives of the study are to determine the correlation between grain yield and other agronomic parameters and to identify high yielding adapted hybrid maize varieties. Nineteen released hybrid maize varieties were evaluated at Kamash and Assosa area of western Ethiopia during the 2016 main season. Quantitative traits including phenology, disease, yield and yield component traits were evaluated using randomized complete block design with three replications. Analysis of variance revealed highly significant difference (p≤ 0.01) among genotypes for most of tested traits for both locations. These indicated presence of sufficient amount of variability among genotypes for the tested traits. Hybrid maize varieties Limu, Shone and BH546 showed the highest grain yield and significantly different from the standard check BH543 at Kamash location. At Assosa maize hybrids Viz. Abarya, Shone, BH546 and BH547 revealed highest yield performance. Therefore, demonstration and popularization of these varieties could boost maize yield in the area. Positive significant correlation of grain yield were observed with days to maturity and fresh ear weight at Kamash location and with plant height, ear height and fresh ear weight at Assosa location. Negative significant correlation of yield with gray leaf spot and Turcicum leaf blight disease were observed under both locations. Selection for higher fresh ear weight, late maturity, longer plant and ear height simultaneously could result yield improvement in maize.

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Studies on Variability, Heritability, Genetic advance and Correlation in Maize (Zea mays L.)

Cited by 24 publications

References 0 publications

Mean Performance and Analysis of Variance of Thirty Genotypes for Twelve Characters Studied in Maize (Zea mays L.)

Mean Performance and Analysis of Variance of Thirty Genotypes for Twelve Characters Studied in Maize (Zea mays L.)

Untitled

Association of Traits and Adaptability of Hybrid Maize (Zea mays L.) Varieties in Western Part of Ethiopia

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