Genetic Diversity and Responses of Some Selected Yellow Maize Genotypes to Stem Borer (Sesamia calamistis Hampson) Infestation

2019 ◽  
pp. 1-10
Author(s):  
Omotola Solomon Oyeniyi ◽  
Bunmi Olasanmi ◽  
Samuel Adelowo Olakojo ◽  
Solomon Tayo Akinyosoye
Keyword(s):  
Agricultural Research ◽  
Block Design ◽  
Principal Component ◽  
Stem Borer ◽  
Leaf Damage ◽  
Yield Potential ◽  
F1 Hybrids ◽  
Maize Hybrids ◽  
Maize Genotypes ◽  
Maize Varieties

Aims: Identification of promising resistant parents against stem borer infestation for the development of high yielding maize hybrids. Study Design: Ten yellow maize genotypes selected for yield potential and durable level of tolerance to stem borer infestation were used in this study. A stem borer resistant yellow maize variety was crossed with nine stem borer (not necessarily resistant) maize varieties in a top-cross mating design. Place and Duration of Study: The study was conducted in 2017 and 2018 at the Institute of Agricultural Research and Training, OAU, Ibadan, Nigeria. Methodology: The resulting nine F1 hybrids along with the ten parents were evaluated under irrigation using a Randomized Complete Block Design (RCBD) with three replications in a stem borer endemic area. Data collected were subjected to combined analysis of variance (ANOVA), principal component analysis (PCA) and hierarchical clustering analyses. Results: Results obtained showed significant differences for year and genotype, as well as their interaction for some traits measured. Maize varieties were delineated into three groups. The first two PCA with Eigen values greater than 1.0 accounted for 73.0% of the variation; where PC1 was responsible for 52.5% of the variation and was associated with percentage stem borer infestation, leaf damage, plant aspect, stem tunneling ratio and dead heart. PC2 accounted for 20.5% and associated with only grain yield (GY). Also, maize hybrids had higher GY and better resistance to stem borer than their parents by 24.3% and -14.3%, respectively. BR9928-DMR-SR-Y was identified as resistant to stem borer with high GY in hybrid combinations. Positive and significant correlation was obtained among infestation parameters. Conclusion: Genes from promising donor parents may be introgressed into other desirable maize germplasm for the development of stem borer resistant maize hybrids.

scholarly journals Genetic Variability in Physiological Seed Quality of Maize Genotypes of Different Maturity Groups

2020 ◽  
pp. 1-10
Author(s):  
J. O. Olasoji ◽  
D. J. Ogunniyan
Keyword(s):  
Genetic Variability ◽  
Seed Weight ◽  
Seed Quality ◽  
Agricultural Research ◽  
Quality Parameters ◽  
Yield Potential ◽  
International Institute ◽  
Mean Values ◽  
Maize Genotypes ◽  
Maize Varieties

A study was conducted to investigate genetic variability in physiological seed quality using viability and vigour tests which were conducted at the seed testing laboratory of Institute of Agricultural Research and Training (IAR&T), Moor Plantation, Ibadan.  The investigational materials consisted of twelve genotypes of maize of different maturity-early, intermediate and late collected from the International Institute of Tropical Agriculture (IITA), Ibadan and IAR&T, Moor Plantation, Ibadan, respectively.  The experimental design used was completely randomize design (CRD) and data was collected for some viability and vigour traits and the data collected were subjected to analysis of variance. Significant differences were found among all the maize genotypes for the characters under observation. Hundred seed weight ranged from 24.6-29.3 g, 18.5-26.6 g, 22.9-29.1 g, standard germination ranged from 54.0-100.0%, 16.0-92.0%, 50.0-100% and accelerate ageing germination also ranged from 6.0-96.0%, 7.0-84.0%, 0-90.0% in the early, intermediate and late- maturing genotypes, respectively. Conductivity ranged from 5.34-17.10 µS/cm/g, 13.7-91.7 µS/cm/g and7.06-33.6 µS/cm/g with mean values of 11.14, 39.23 and 14.05 µS/cm/g in the early, intermediate and late-maturing genotypes, respectively. Variability was smaller in the late-maturing genotypes for Root Number (RN) and Shoot Length (SLT) but higher for both early and late- maturing genotypes. It was concluded from this study that seeds of early-maturing genotypes had significantly higher physical and physiological quality parameters.  All the early materials used for the study tend to be homogenous for all the traits measured and selection should be practiced for hundred seed weight to increase yield potential in maize varieties.

scholarly journals Evaluation of Open Pollinated Normal Maize Varieties in the Eastern Mid Hill of Nepal

2014 ◽  
Vol 8 ◽  
pp. 18-22
Author(s):  
Surya N. Sah ◽  
Diwakar Sharma
Keyword(s):  
Grain Yield ◽  
Block Design ◽  
Yield Potential ◽  
High Yield ◽  
Research Station ◽  
Cropping Patterns ◽  
Phenotypic Characters ◽  
Maize Genotypes ◽  
Normal Maize ◽  
Maize Varieties

Full season maize genotypes were evaluated in on station coordinated varietal experiments   during summer season at Agriculture Research Station (ARS), Pakhribas in three consecutive years 2003, 2004 and 2005. The experiments were laid out in randomized complete block design (RCBD) with three replications. The objective of this study was to identify high yield potential normal maize genotypes suitable for the existing cropping patterns in the eastern mid hill. Genotypes were evaluated in coordinated varietal trials (CVT) in 2003, 2004 and 2005 and in intermediate yield trial (IYT) in 2004. Five common genotypes including local and standard check were evaluated in the CVT 2003 and in the CVT 2004, another five common genotypes tested in the CVT 2004 and in the CVT 2005 and six common genotypes of the IYT 2004 and CVT 2005 were analyzed over year. Genotype P501-SARCO-F1/P502-SARCO-F1 produced significantly higher grain yield   followed by DRACOSYN- F1/DRBCOSYN-F1 in the 1st two years and found about one week earlier than Mankamana-3. Across 00502 and Across 9942/Across 9944 were found superior with respect to grain yield and phenotypic characters like husk cover, plant aspect and ear aspect both in CVT 2005 and IYT 2004 across the years and the genotype Across   9942/Across 9944 was found tolerant to turcicum leaf blight (TLB) in 2005.Nepal Agric. Res. J. Vol. 8, 2007, pp. 18-22DOI: http://dx.doi.org/10.3126/narj.v8i0.11566 

Comparative Effect of Groundnut (Arachis hypogea l.) Genotypes on Yield and N Fixation in Sudan and Northern Guinea Savannahs of Nigeria

2019 ◽  
pp. 61-67
Keyword(s):  
Agricultural Research ◽  
Cropping Systems ◽  
Block Design ◽  
Dry Weight ◽  
Field Trials ◽  
Yield Potential ◽  
N Fixation ◽  
Maize Crop ◽  
Significant Interaction Effect ◽  
Pod Yield

Recognition of high yielding and nitrogen (N) fixing groundnut genotypes and desegregating them in the cereal-based cropping systems common in savannah regions will enhance food security and reduce the need for high N fertilizers hence, minimize the high cost and associated environmental consequences. Field trials were conducted during the 2015 growing season at the Research Farms of Bayero University Kano (BUK) and Institute for Agricultural Research (IAR), Ahmadu Bello University, Samaru-Zaria to assess the yield potential and Biolog- ical N fixation in 15 groundnut genotypes (ICG 4729, ICGV-IS 07823, ICGV-IS 07893, ICGV-IS 07908, ICGV- SM 07539, ICGV- SM 07599, ICGV-IS 09926, ICGV-IS 09932, ICGV-IS 09992, ICGV-IS 09994, SAMNUT-21, SAMNUT-22, SAMNUT-25, KAMPALA and KWANKWAS). The groundnut genotypes and reference Maize crop (SAMMAZ 29) were planted in a randomized complete block design in three replications. N difference method was used to estimate the amount of N fixed. The parameters determined were the number of nodules, nod- ule dry weight, shoot and root dry weights, pod, and haulm yield as well as N fixation. The nodule dry weight, BNF, haulm, and pod yield were statistically significant (P<0.01) concerning genotype and location. Similarly, their interac- tion effect was also highly significant. ICGV-IS 09926 recorded the highest nod- ule dry weight of 2.07mg /plant across the locations while ICGV-IS 09932 had the highest BNF value of 140.27Kg/ha. Additionally, KAMPALA had the high- est haulm yield, while ICGV-IS 07893 had the highest pod yield across the loca- tions with a significant interaction effect. The result shows that ICGV-IS 07893 and ICGV-IS 09932, as well as ICGV-IS 09994 and SAMNUT – 22, were the best genotypes concerning BNF, haulm and pod yield in the Northern Guinea and Sudan Savannahs of Nigeria respectively with the potential for a corresponding beneficial effect.

scholarly journals Genotype by Trait Interaction (GT) in Maize Hybrids on Complete Fertilizer

Plants ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 2388
Author(s):  
Seyed Mohammad Nasir Mousavi ◽  
Csaba Bojtor ◽  
Árpád Illés ◽  
János Nagy
Keyword(s):  
Block Design ◽  
Principal Component ◽  
Gge Biplot ◽  
Maize Hybrids ◽  
Maize Cultivars ◽  
Randomized Complete Block Design ◽  
Total Data ◽  
Ammi Model ◽  
Complete Fertilizer ◽  
The University

We investigated the interaction between genotype by trait, and an experiment was conducted at the University of Debrecen. Two maize cultivars, FAO340 and FAO410, were studied in a randomized complete block design with four replications. This experiment was applied to the six fertilization treatments. Fertilizer levels were NPK0 (control) (N:0, P2O5:0, K2O:0), NPK1 (N:30, P2O5:23, K2O:27), NPK2 (N:60, P2O5:46, K2O:54), NPK3 (N:90, P2O5:69, K2O:81), NPK4 (N:120, P2O5:92, K2O:108), and NPK5 (N:150, P2O5:115, K2O:135). The first principal component showed 54.24%, and the second principal component showed 20.75%, which explained the total squares interaction using the AMMI model in the case of the FAO410 hybrid. As regards the FAO340 hybrid, the first principal component showed 58.18%, and the second principal component showed 18.04%, explaining the total squares interaction using the AMMI model in the FAO410 hybrid. In the GGE biplot on FAO410, the first and the second principal components covered 91.20% of the total data in this analysis. Accordingly, the desirable treatment was NPK5, followed by NPK4, NPK2, NPK3, NPK1, and NPK0. NPK4 and NPK5 had the most desirable treatments for the number of seeds per row, chlorophyll, weight of 1000 seeds, and stem diameter in the case of the FAO410 hybrid.

scholarly journals Response Of Maize Varieties To Sowing Dates In Inner Terai Region, Dang, Nepal

2019 ◽  
Vol 2 (2) ◽  
pp. 27-31
Author(s):  
Pukar Khanal ◽  
Rupak Karn ◽  
Pratibha Budhathoki Chhetri ◽  
Samita Karki ◽  
Shrawan Kumar Sah
Keyword(s):  
Unit Area ◽  
Block Design ◽  
Climatic Conditions ◽  
Spring Season ◽  
Thousand Grain Weight ◽  
Maize Hybrids ◽  
Sowing Dates ◽  
Maize Varieties ◽  
Randomized Complete Block Design ◽  
Hybrid Maize

AbstractSowing dates and varieties affect the productivity of maize. A field experiment was conducted to find out the response of maize hybrids to sowing dates on growth and productivity of maize in spring season at Lamahi, Dang in 2019. The experiment was laid out in two factor factorial Randomized Complete Block Design with four replications. The treatment consisted of combination of three different sowing dates (February 1, February12 and February 23) and two maize varieties (Arun-2 i.e. OPV and hybrid Bioseed-9220).The result revealed that earlier planting on February 1 produced the highest yield (8265 Kg ha-1) which was significantly superior than latter planting of February 12(6099 kg ha-1)and February 23 (5934 kg ha-1).The higher yield in earlier planting was due to significantly higher no of kernel per ear, non-significant but higher number of cob per unit area, thousand grain weight. Similarly, Bioseed 9220 produced higher yield (7798 kg ha-1) compared to Arun-2 (5,734 kg ha-1). The higher yield of hybrid Bioseed 9220 was because of higher number of cob per unit area harvested and more number of kernel per cob. Therefore, earlier planting with hybrid maize is recommended in spring season of Dang and locations with similar climatic conditions for higher productivity of maize.

scholarly journals The Effect of Amino Acids and The Date of Planting on Yield and Some Yield Components of Three Maize Varieties

2021 ◽  
Vol 904 (1) ◽  
pp. 012066
Author(s):  
Y A Al-Janabi ◽  
N M Abood ◽  
M I Hamdan
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Agricultural Research ◽  
Block Design ◽  
Control Treatment ◽  
Research Station ◽  
Spring Season ◽  
Planting Dates ◽  
Maize Varieties ◽  
Biological Yield

Abstract The experiment was carried out according to the randomized complete block design (R.C.B.D) and the arrangement of split-split plot with three replications, at the Field Crops Research Station of the Agricultural Research Department - Abu Ghraib during the spring season for the years 2019 and 2020. With the aim of studying the effect of amino acids, planting dates and their effect on some of the yield characteristics and its components for three varieties of maize in the spring season. Planting dates (March 15, March 25 and April 5) occupied the main plots, while amino acids and the control treatment (proline, arginine, and distilled water) occupied the sub-plot, whereas the varieties (Rabi, Baghdad 3 and Fajr 1) occupied the sub-sub-plot, and the most important results were summarized as follows:The two cultivars, Rabi and Fajr-1, achieved a significant increase in most of the yield characteristics and its components for the seasons. The addition of the amino acid proline also led to a significant increase in most of the studied traits (the number of grains in ear, weight of 500 grains, total grain and biological yield, and harvest index), planting dates also have a significant effect on most of the studied traits. The first date (15/3) recorded increase in the number of grains per ear, the weight of 500 grams, and the grain and biological yield. The plants of the Rabi variety when cultivated on March 15 th and sprayed with the amino acid proline achieved the highest average for the grain yield, which reached 7.48 ton. ha-1 for spring 2019.

scholarly journals Performance evaluation of early maize genotypes in far western hills of Nepal

2015 ◽  
Vol 1 (1) ◽  
pp. 106-111
Author(s):  
Hari Kumar Prasai ◽  
Ujjawal Kumar Singh Kushwaha ◽  
Bishnu Prasad Joshi ◽  
Jiban Shrestha
Keyword(s):  
Performance Evaluation ◽  
Statistical Analysis ◽  
Research And Development ◽  
Agricultural Research ◽  
Block Design ◽  
Initial Evaluation ◽  
Research Station ◽  
Maize Genotypes ◽  
Randomized Complete Block Design ◽  
Evaluation Trial

Initial evaluation trial of maize (early) genotypes was carried out at Regional Agricultural Research Station, Doti, Nepal in 2013 and 2014. Total fourteen and fifteen genotypes of early maize were included in initial evaluation experiment of the year 2013 and 2014 respectively. The experiment was laid out in randomized complete block design (RCBD) with three replications in each year. Out of the tested genotypes, SO3TEY/LN, ZM 423 and SO3TEY-FM (ER) identified as promising from statistical analysis over year. All the tested characters were found statistically significant. Similarly, the coordinated varietal trial of maize (early) was also carried out in the same station at 2013 and 2014. Total fourteen genotypes in 2013 and fifteen genotypes in 2015 of maize (early) were included in the experiment. The RCB design was applied and the experiment was replicated three times in every year. ZM 627 and ZM 621/Pool -15 genotypes identified as superior next to Arun-2 from the analysis of two year data. All the tested traits were found statistically significant in over year analysis.Journal of Maize Research and Development (2015) 1(1):106-111DOI: http://dx.doi.org/10.5281/zenodo.34291

Physiological Basis of Yield Differences in Quality Protein Maize Genotypes of Different Maturity Groups

2019 ◽  
pp. 1-7
Author(s):  
Olasoji, Julius Oluseyi ◽  
Ajayi, Sunday Adesola
Keyword(s):  
Grain Yield ◽  
Agricultural Research ◽  
Block Design ◽  
Quality Protein Maize ◽  
Physiological Basis ◽  
Maize Genotypes ◽  
Southwest Nigeria ◽  
Ear Height ◽  
Cropping Seasons ◽  
Maturity Groups

Yield performance of early maturing maize (Zea mays L.) varieties in the rainforest agroecology of southwest Nigeria, is lower than that of intermediate varieties  and that there was no yield advantage in the late varieties over the intermediate maturing varieties. However, the physiological basis of yield differences is yet to be fully investigated. This study was carried out to investigate the physiological basis underlying yield differences in quality protein maize genotypes of different maturity groups. Field experiment was conducted as randomized complete block design (RCBD) with three replicates at Institute of Agricultural Research and Training, Obafemi Awolowo University, Moor Plantation, Ibadan during 2013 and 2014 cropping seasons. The results indicated that season influenced days to 50% Anthesis (DTA), days to 50% silking (DTS), anthesis silking interval (ASI), plant height (PLHT), ear height (EHT), ear per plant (EPP), ear aspect (EASP), kernel width (KWDT) and grain yield (GYD). Maturity groups also influenced DTA, DTS, PASP, PLHT, EHT, and with no effect on GYD. The overall mean grain yields across seasons were 4.44, 4.16, 3.64 and 3.36 t/ha for season 1, 2, 3 and 4, respectively.  It was concluded from this study that all the maturity groups used had similar grain yield.

scholarly journals Analysis of Added Value of Nasa Hybrid Corn Seed Propagation 29 in Mamuju Regency

2021 ◽  
Vol 2 ◽  
pp. 104-120
Author(s):  
Ketut Indrayana ◽  
Hesti Rahasia ◽  
Marthen P.Sirappa
Keyword(s):  
Agricultural Research ◽  
Economic Benefits ◽  
Added Value ◽  
Yield Potential ◽  
Maize Seed ◽  
Hybrid Corn ◽  
Corn Seed ◽  
Maize Varieties ◽  
Seed Propagation ◽  
Hybrid Maize

Need  for corn is increasing, both for food, animal feed, and industrial raw materials. This is an opportunity as well as a challenge for the government in increasing corn production towards sustainable self-sufficiency. Superior varieties are one of the components that can significantly increase yield. Hybrid varieties have a higher yield potential than composites so that the use of hybrid corn seeds can increase the yield of corn per crop area. The Agricultural Research and Development Agency (Balitbangtan) has produced hybrid maize varieties with high yield potential, which are no less competitive with other private hybrid maize, but they are not well disseminated. In order to obtain added value for farmers and the development of Balitbangtan corn seeds, NASA 29's hybrid corn seed propagation was carried out at the farmer level. The study was carried out in Salukayu Village, Papalang District, Mamuju Regency in 2018 covering an area of ​​1 ha. The results showed that corn seeds were 1.5 tons / ha. The Nasa 29 hybrid maize seed propagation farm is economically feasible and profitable, as indicated by the R / C value of 2.35, TIP 637 kg / ha, TIH Rp. 10,623, - / kg and IK Rp. 88,985, / day. The study of the propagation of the NASA 29 hybrid maize seed was financially feasible and the economic benefits were high and efficient.

scholarly journals GENOTYPE BY ENVIRONMENT AND STABILITY ANALYSES OF DRYLAND MAIZE HYBRIDS

2020 ◽  
Author(s):  
Achmad Amzeri ◽  
◽  
B.S. DARYONO ◽  
M. SYAFII ◽  
◽  
...  
Keyword(s):  
Grain Yield ◽  
Block Design ◽  
Yield Potential ◽  
High Yield ◽  
Environment Interaction ◽  
Phenotypic Analysis ◽  
Stability Parameters ◽  
Early Maturity ◽  
Maize Hybrids ◽  
The Stability

The phenotypic analysis of new candidate varieties at multiple locations could provide information on the stability of their genotypes. We evaluated the stability of 11 maize hybrid candidates in five districts in East Java Province, Indonesia. Maize hybrids with high yield potential and early maturity traits derived from a diallel cross were planted in a randomized complete block design with two checks (Srikandi Kuning and BISI-2) as a single factor with four replicates. The observed traits were grain yield per hectare and harvest age. The effects of environment, genotype, and genotype × environment interaction on yield were highly significant (P < 0.01). KTM-1, KTM-2, KTM-4, KTM-5, and KTM-6 showed higher average grain yield per hectare than the checks (Srikandi Kuning = 8.49 ton ha−1 and BISI-2 = 7.32 ton ha−1) at five different locations. The average harvest age of 11 candidates was less than 100 days. KTM-4 and KTM-5 had production yields that were higher than the average yield of all genotypes in all environments (Yi > 7.78 tons ha−1) and were considered stable on the basis of three stability parameters, i.e., Finlay–Wilkinson, Eberhart–Russell, and additive main effect multiplicative interaction (AMMI). KTM-2 had the highest yield among all tested genotypes (9.33 ton ha−1) and was considered as stable on the basis of AMMI but not on the basis of Finlay–Wilkinson and Eberhart–Russell. KTM-1 performed well only in Pamekasan, whereas KTM-6 performed well only in Sampang. Thus, these two genotypes could be targeted for these specific locations.

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