Correlations among Grain yield and Yield attributes in Maize Hybrids as Influenced by Site Specific Nutrient Management (SSNM)

Chetan, H. T.; Potdar, MP; Nadagouda, B. T.; Patil, P. L.; Patil, Chandragouda R.

doi:10.20546/ijcmas.2017.608.269

Cited by 2 publications

(2 citation statements)

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“…Based on the research presented in [1], the KN per ear and EL showed a positive and highly significant correlation with grain yield. It was observed that grains yield showed a positive and highly significant correlation with EL (r = 0.993 **), ED (r = 0.974 **), and KN per ear (r = 0.893 **) [61]. This means that we can use DIA to measure corn ear traits obtained from different fertilization variants and to provide nitrogen fertilization amount recommendations for optimal corn yields.…”

Section: Comparison Of Anova Post-hoc Test Regression Analysis and Co...mentioning

confidence: 94%

Using Digital Image Analysis to Estimate Corn Ear Traits in Agrotechnical Field Trials: The Case with Harvest Residues and Fertilization Regimes

et al. 2023

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In this study, we aimed to evaluate the feasibility of digital image analysis (DIA) as a substitute for standard analysis (SA) in assessing corn ear traits in agrotechnical field trials. Accurate and timely prediction of corn yield through corn ear traits can lead to precise agricultural management recommendations for the improvement of production. Four replications with 10 plots each were subjected to different fertilization regimes and analyzed using DIA and SA to determine the kernel number per ear (KN), ear length (EL), and ear diameter (ED). For both methods, the results showed that only nitrogen doses had a significant effect on the examined corn ear traits, and the correlation matrix revealed a strong and significant relationship between yield and corn ear traits. The post-hoc test showed no discrepancy in cases between the two methods for KN and EL, with a 6.7% discrepancy for ED. For both methods, a linear plateau was the best fit for KN and EL with increasing nitrogen doses, whereas a quadratic plateau was the best fit for ED. The regression equations for both methods provided similar recommendations regarding nitrogen requirements. The findings suggest that DIA can be used as a substitute for SA of corn ear traits obtained from different fertilization variants and can provide nitrogen fertilization recommendations for optimal corn yields.

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Section: Comparison Of Anova Post-hoc Test Regression Analysis and Co...mentioning

confidence: 94%

Using Digital Image Analysis to Estimate Corn Ear Traits in Agrotechnical Field Trials: The Case with Harvest Residues and Fertilization Regimes

et al. 2023

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“…Positive correlation of grain yield with number of kernels row -1 [17] and close correlations between grain yield and 100 kernel weight [18] were also reported. [19] identified cob length as a suitable marker for selecting genotypes with high grain yield along with other yield attributes like cob girth, test weight and number of kernel rows cob -1 [20].…”

Section: Random Matingmentioning

confidence: 99%

Comparative Study on Impact of Mating Systems on Character Associations in Single Crosses of Maize (Zea mays L.)

Priya,

Pradeep,

Sumalini

et al. 2023

IJPSS

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Although global maize breeding programmes are in momentum with high number of superior hybrids releasing annually, the full potential of hybrids is seldom achieved in real time due to various biotic and abiotic stresses. It is pertinent to broaden the diversity of available germplasm to suit to the needs of present changing climatic conditions. In this study, six segregating populations of two maize single crosses developed by imposing three types of matings (self, sib and random mating) were evaluated to assess their potential in future breeding programmes. Trait association studies were conducted in these populations to estimate the success rate of selections, time required to develop superior inbreds and assist in parental choice for hybrid development programmes. Results indicated that sib mating was the most effective among the three mating systems, as its progeny showed highest number of significant positive correlations among the yield and its related traits. Selfed progenies exhibited lesser number or weak positive correlations while random mating largely resulted in negative and weak positive correlations.

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Correlations among Grain yield and Yield attributes in Maize Hybrids as Influenced by Site Specific Nutrient Management (SSNM)

Cited by 2 publications

References 1 publication

Using Digital Image Analysis to Estimate Corn Ear Traits in Agrotechnical Field Trials: The Case with Harvest Residues and Fertilization Regimes

Using Digital Image Analysis to Estimate Corn Ear Traits in Agrotechnical Field Trials: The Case with Harvest Residues and Fertilization Regimes

Comparative Study on Impact of Mating Systems on Character Associations in Single Crosses of Maize (Zea mays L.)

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