scholarly journals Evaluation of maize grain yield in drought-prone environment

2017 ◽  
Vol 62 (1) ◽  
pp. 15-29 ◽  
Author(s):  
Felix Takim ◽  
Gbedabo Olaoye ◽  
Yakeen Abayomi ◽  
Samuel Olakojo ◽  
Matthew Isah ◽  
...  
Keyword(s):  
Grain Yield ◽  
Block Design ◽  
Relevant Information ◽  
Yield Parameters ◽  
Randomized Complete Block Design ◽  
Main Effect ◽  
Early Maturing ◽  
Maize Grain ◽  
Set Up ◽  
Hybrid Maize

Multi-location trial data obtained between 2007 and 2014 involving open pollinated varieties (OPVs) and hybrid maize (Zea mays L.) were analysed using GGE (Genotype and Genotype x Environment) and AMMI (Additive Main Effect and Multiplicative Interaction) models to assess their performance and suitability as cultivars, and identify promising genotypes and sites for further evaluations in the different locations of the southern Guinea savanna of Nigeria. The experiments were set up as a randomized complete block design with three replications in all the locations. The plot size consisted of two rows, 5m long with inter and intra row spacing of 0.75m x 0.4m for the early maturing varieties and 0.75m x 0.5m for intermediate/late maturing varieties and hybrids. Two seeds were planted/hill to give a plant population of approximately 66,000 plants/ha (early) and 54,000 plants/ha (intermediate/late). Data were collected on agronomic and yield parameters. The environment accounted for 84.80% and 90.42% of the total variation in grain yield of OPVs and hybrids, respectively. TZE-Y-DT STR C4 (early OPV) and white-DT-STRSYN (intermediate/late OPV), TZE-W-Pop-DT STR-C5 (early maturing hybrids) and TZEEI 3 x TZEEI 46 (extra early genotype) were the most stable and high yielding. The core test locations for evaluation of early OPVs, intermediate/late OPVs and hybrids are Ilorin/Ballah, Ejiba/Mokwa and Kishi/Badeggi, respectively. This study recommends that fewer but better locations that provide relevant information should be used for conducting multilocation trials and TZE-Y-DT STR C4, white-DT-STR-SYN, TZE-W-Pop-DT STR-C5 and TZEEI 3 x TZEEI 46 should be further evaluated on farmer fields.

scholarly journals Influence of Establishment Methods on Yield and Yield Parameters of Finger Millet (Eleusine Coracana L. Gaertn) in Ward 24, Zaka District

2020 ◽  
Vol 1 (1) ◽  
pp. p47
Author(s):  
Nyasha Sakadzo ◽  
Gift Bvekwa ◽  
Kasirayi Makaza
Keyword(s):  
Grain Yield ◽  
Rainy Season ◽  
Finger Millet ◽  
Block Design ◽  
Eleusine Coracana ◽  
Tiller Number ◽  
Yield Parameters ◽  
Establishment Method ◽  
Panicle Number ◽  
Randomized Complete Block Design

Finger millet is a climate compliant crop; its production remains low due to poor establishment methods. A field experiment was conducted during the rainy season of 2018/19 at Dorcas Charare plot in ward 24, Zaka district to investigate the effects of establishment methods on yield and yield parameters of finger millet (Eleusine coracana L. Gaertn). The experiment was laid out in a Randomized Complete Block Design (RCBD) with three treatments namely broadcasting, hand drilling and transplanting replicated three times. Results on grain yield showed that transplanting method had the highest yield of 0.51t/ha whilst drilling and broadcasting scored 0.40t/ha and 0.35t/ha respectively. Transplanting method significantly (p<0.05) influenced higher number of tillers (7.13) per hill followed by drilling (2.40) and lastly broadcasting (2.13). Significant differences (p<0.05) were noted on panicle number with transplanting scoring the highest (8.13) and broadcasting the lowest (3.13). It can be concluded from the study that transplanting method realized a higher panicle number, tiller number and grain yield. Farmers must adopt transplanting as an establishment method in finger millet production.

scholarly journals Agro-Economic Performance of Intercropping Hybrid Maize with Vegetables and Spices at Farmer’s Field

2019 ◽  
Vol 21 (2) ◽  
pp. 73-78
Author(s):  
MI Nazrul
Keyword(s):  
Grain Yield ◽  
Block Design ◽  
Cost Ratio ◽  
Gross Margin ◽  
Benefit Cost Ratio ◽  
Randomized Complete Block Design ◽  
Hybrid Maize ◽  
Benefit Cost ◽  
Sylhet Region ◽  
Equivalent Yield

The experiment was conducted at Multi Location Testing (MLT) site, Moulvibazar, Bangladesh during rabi season of 2016-17 and 2017-18 to study the profitability of intercropping of hybrid maize with vegetables and spices. Five intercrop combinations of hybrid maize along with sole maize were arranged in randomized complete block design (RCBD) replicated six times. There were six treatments viz., T1: Maize + potato, T2: Maize + red amaranth, T3: Maize + spinach, T4: Maize+ data shak, T5: Maize + coriander and T6: Maize as sole. The grain yield of maize in intercropped combination varied significantly. The highest grain yield (9.71 t ha-1) was in sole maize. The highest maize equivalent yield 15.60 t ha-1 was recorded from the treatment T1 (100% maize + potato) whereas the lowest yield (8.61 t ha-1) was obtained from the treatment T6 (sole maize). The highest gross return (Tk. 312000 ha-1) and benefit cost ratio (3.29) was obtained from the treatment T1 (100% maize + potato). On the contrary, the lowest gross margin (Tk. 101600 ha-1) was obtained from treatment T2 (maize + red amaranth). It revealed that the combination of maize with potato was more compatible and profitable intercropping system in Sylhet region of Bangladesh Bangladesh Agron. J. 2018, 21(2): 73-78

scholarly journals Karabuğdayın Yazlık Olarak Isparta Doğal Yağış Koşullarında Farklı Ekim Zamanlarında Yetiştirilme Olanaklarının Araştırılması

2018 ◽  
Vol 6 (1) ◽  
pp. 46 ◽  
Author(s):  
Nimet Kara ◽  
Gökhan Gürbüzer
Keyword(s):  
Grain Yield ◽  
Plant Height ◽  
Block Design ◽  
Frost Damage ◽  
Damage Effect ◽  
Sowing Time ◽  
Sowing Dates ◽  
Randomized Complete Block Design ◽  
Biological Yield ◽  
Set Up

The study was conducted with aim to investigate growing possibilities without irrigating by taking advantage of spring rains at different sowing times as spring in Isparta conditions. The research was set up as field study during the 2009 and 2010 years according to Randomized Complete Block Design with three replications included six sowing dates 1st March, 10st March, 20th March, 30st March, 9th April and 18st April (control) by using Aktaş buckwheat cultivar. 18st April sowing time was irrigated as control, and the other sowing times was not watered and cultivated depending on natural rains. Buckwheat seeds emergence at 1st and 10st March sowing times, but all the plants after emergence died due to frost damage. Effect of sowing dates on plant height, biological yield and grain yield were statistically significant, and the longest plant height 65.9 cm and 60.0 cm, the highest biological yield 427.3 kg da-1 and 403.7 kg da-1 and grain yield 145.7 kg da-1 and 132.8 kg da-1, respectively, were determined in watered treatment in 18st April in both years (2015 and 2016). Effect of sowing dates on 1000 grain weight, hectoliter weight and protein content were statistically non-significant. It was concluded that buckwheat should be cultivation by watered for Isparta ecological conditions.

INFLUENCE OF TIME OF NITROGEN SECOND DOSE FERTILIZATION MAIZE (Zea mays L.) VARIETIES IN NORTHERN GUINEA SAVANNAH OF NIGERIA

2021 ◽  
Vol 4 (4) ◽  
pp. 183-190
Author(s):  
K. M. Ladan ◽  
A. H. Hassan
Keyword(s):  
Grain Yield ◽  
Field Experiments ◽  
Zea Mays L ◽  
Agricultural Research ◽  
Block Design ◽  
Fertilizer Application ◽  
Maize Varieties ◽  
Randomized Complete Block Design ◽  
Application Data ◽  
Maize Grain

The field trial was carried out to evaluate the effect of timing nitrogen second dose fertilization on the grain yield and yield components of some improved maize varieties. The field experiments was conducted at the Institute for Agricultural Research IAR-ABU Research Farm Samaru – Zaria and Military Cantonment Farm Jaji – Nigeria. Treatments consist of three maize varieties (SAMMAZ 14, SAMMAZ 15 and SAMMAZ 16) and six timings of nitrogen second dose of fertilizer application. Data were recorded on grain yield, number of cobs /plant, number of grain /row, cob(ear) diameter, cob(ear) weight and 100 grain weight. Treatments were laid out in a randomized complete block design (RCBD) with three replications. SAMMAZ 16 produced significantly higher grain yield and recorded superior yield characters over SAMMAZ 14 and 15. The results further showed that time of nitrogen second dose application 6 WAS outperformed other timings evaluated at both location. The study identified. SAMMAZ 16 and time 6 WAS appeared to be the option for increased maize grain yield in the study area

scholarly journals Generation mean analysis for grain yield and its components in popcorn

2018 ◽  
Vol 3 (1) ◽  
pp. 451-458
Author(s):  
Shah Fahad ◽  
Shah Fahad ◽  
Muhammad Noor ◽  
Durri Shahwar ◽  
Mukhtar Alam ◽  
...  
Keyword(s):  
Grain Yield ◽  
Gene Action ◽  
Block Design ◽  
Dominant Gene ◽  
Genetic Effects ◽  
Maize Breeding ◽  
Breeding Programs ◽  
Randomized Complete Block Design ◽  
Hybrid Maize ◽  
Additive Genetic Effects

AbstractKnowledge about genetic composition of a character helps plant breeders to plan their breeding programs. Grain yield and related traits are very important in maize breeding programs. In our experiment four each of parents, F1s, F2s, BC1s and BC2s were evaluated at Cereal Crops Research Institute (CCRI), Pirsabak, Nowshehra and Agriculture University Peshawar. The experimental material at both locations were replicated thrice in randomized complete block design. In all crosses dominance gene action was found to be important in the inheritance of ear diameter, ear length, percent shelling and grain yield. Additive genetic effects were found negative and non-significant in all four crosses for percent shelling. Duplicate type of non-allelic interactions was observed for shelling percentage in all crosses. Duplicate type of epistasis was observed in cross, PS-1 × BD-1 and PS-2 × BD-1 for ear length. For grain yield both complementary and duplicate type of epistasis were observed. Additive genetic effects werefound significant with positive and negative magnitude in two crosses each. It is concluded that crosses, where dominant gene action was found predominant, should be effectively utilized in hybrid maize programs for improved grain yield and related traits.

scholarly journals Spikelet fertility improvement of Boro advanced line (CN6) through supplemented nutrient management

2020 ◽  
Vol 7 (1) ◽  
pp. 17-23
Author(s):  
Amena Sultana ◽  
Md Adil Badshah ◽  
Mst Selima Zahan ◽  
Shah Ashadul Islam ◽  
Mohammad Issak
Keyword(s):  
Grain Yield ◽  
Nutrient Management ◽  
Block Design ◽  
Spikelet Fertility ◽  
Control Treatment ◽  
Ecological Zone ◽  
Randomized Complete Block Design ◽  
Early Maturing ◽  
Advanced Line ◽  
Boro Rice

The experiment was conducted in the Boro season of 2016-17, at Bangladesh Rice Research Institute (BRRI) farm under the Agro Ecological Zone (AEZ 28) Modhupur Tract. CN6 is a high spikelet bearing early maturing advanced line of rice but low in spikelet fertility. Supplemented nutrient management was examined to increase its spikelet fertility. Five treatments were used in this experiment. The treatments were as follows: T1 = BRRI recommended fertilizer dose + MgO @ 0.05%, T2 = BRRI recommended fertilizer dose + 60 g MoP + 60 g elemental S (80% wp) + 20 g ZnSO4, T3 = BRRI recommended fertilizer dose + Boron @ 5 ppm, T4 = BRRI recommended fertilizer dose + Copper @ 5 ppm) and T5 = BRRI recommended fertilizer dose alone. The experiment was conducted in Randomized Complete Block design with three replications. The results revealed that Treatment T3 (BRRI recommended fertilizer dose + Boron @ 5ppm) produced the more number of grains per panicle with an average of 201 which is 19.9% higher number of grains per panicle over the BRRI recommended fertilization under the treatment of T5. However, higher grain yield were recorded in treatment T3 compare to the control treatment T5 (BRRI recommended fertilization). Taken together, our results suggested that BRRI recommended fertilization alone with supplemented nutrient management, especially boron, significantly increased the spikelet fertility of the CN6 advanced line of Boro rice resulting higher yield. Res. Agric., Livest. Fish.7(1): 17-23, April 2020

scholarly journals PENDUGAAN KERAGAMAN GENETIK DAN HERITABILITAS JAGUNG HIBRIDA SILANG PUNCAK PADA PERLAKUAN CEKAMAN KEKERINGAN

2015 ◽  
Vol 24 (1) ◽  
pp. 91 ◽  
Author(s):  
Adriani A
Keyword(s):  
Grain Yield ◽  
Genetic Variance ◽  
Block Design ◽  
Agronomic Performance ◽  
Selection Intensity ◽  
Maize Varieties ◽  
Randomized Complete Block Design ◽  
Hybrid Maize ◽  
1000 Grain Weight ◽  
Location Interaction

Development of maize varieties tolerant to drought is very important to extensification program in dry maginal lands, especially outside Java. The research objective was to evaluate the agronomic performance, genetic variabilities and heritabilities of hybrid maize top crosses at Probolinggo and Gowa during dry season. A randomized complete block design with two replications was applied to each location. The combined analysis of variance showed that hybrid x location interaction was significant for harvesting date, corncob length, 1000 grain weight, and highly significant for flowering date, leaf curling, husk cover aspect, corncob aspect, plant harvested, weight of corncob harvested and grain yield. The genetic variance was considered broad for grain yield, weight of corncob harvested, shalling percentage, number of grain rows per corncob, and corncob aspect. Heritability values in combined location analysis were high for shalling percentage; medium for grain yield, weight of corncob harvested, shalling number of grain rows per corncob and corncob aspect; but for the other characteristics they were low. Low selection intensity (≥ 10%) can be applied in this generation (S2), but strong selection intensity (≥20%) can be applied in the next generation (≥S3).

scholarly journals Enhancing effect of nitrogen on grain production of hybrid maize in Chitwan valley

2013 ◽  
Vol 3 ◽  
pp. 33-41
Author(s):  
BH Adhikary ◽  
R Adhikary
Keyword(s):  
Block Design ◽  
High Dose ◽  
Grain Production ◽  
Key Factors ◽  
Randomized Complete Block Design ◽  
Plant Densities ◽  
Chitwan Valley ◽  
Maize Grain ◽  
Hybrid Maize ◽  
Different Levels

Nitrogen is one of the key factors for increased grain production of hybrid maize. A newly developed hybrid maize variety Rampur Hybrid-2 was evaluated for grain production by the application of different levels of nitrogen (60, 120 and 180 kg N/ha) at varying plant densities (55555, 66666 and 83383 plants/ha) along with 60 kg P2O5 and 40 kg K2O /ha in the acidic soil (pH 5.3) of National Maize Research Program, Rampur, Chitwan during the years of 2008/09 and 2009/10. Factorial randomized complete block design (RCBD) with three replications was the design of experiment. The crop was planted at the plot size of 18 m2 (3.6 m × 5 m). maize was planted in the month of September and harvested in February. The result indicated a sharp response of nitrogen application to this crop whereas the effect of density was observed to be non-significant. Two years mean yield results showed that highest grain yield (11.10 t /ha) was recorded when the crop was supplied with 180 kg nitrogen and with 83383 plants /ha followed by the crop supplied with 120 kg N /ha and 66,666 plant population (10.69 t /ha). The experimental results revealed that application of high dose of N (180 kg N /ha) could help increase hybrid maize grain production in the acidic soils of Chitwan valley. Agronomy Journal of Nepal (Agron JN) Vol. 3. 2013, Page 33-41 DOI: http://dx.doi.org/10.3126/ajn.v3i0.8984

scholarly journals The variability of grain yield, seed morphometric and vigour traits of early maturing hybrid maize

2021 ◽  
Vol 66 (2) ◽  
pp. 105-119
Author(s):  
Dotun Ogunniyan ◽  
Johnson Adetumbi ◽  
Julius Olasoji ◽  
Solomon Makinde
Keyword(s):  
Grain Yield ◽  
Block Design ◽  
Correlation Coefficients ◽  
Principal Component ◽  
Morphometric Traits ◽  
Seed Vigour ◽  
Maize Varieties ◽  
Significant Difference ◽  
Early Maturing ◽  
Hybrid Maize

Breeding for yield and quality requires the assessment of the seed metrics and vigour traits. This study, therefore, assessed the variability and inter-dependence of grain yield (GY), seed morphometric and vigour traits in hybrid maize. Seeds of 75 early maturing hybrid maize varieties were evaluated for morphometric traits and quality in four replicates. A field trial laid out in a randomised complete block design with three replicates was also conducted in Ibadan, Nigeria, to determine the grain yield of the hybrids. Data collected on the GY, seed dimension and quality were subjected to analysis of variance. The least significant difference was used to separate means. Relationships among the GY, seed morphometric and vigour traits were determined using correlation coefficients, while principal component (PC) analysis was performed for variability among the hybrids. Significant differences (P<0.001) were found in the GY, seed dimension and vigour traits. Four of the nine highest yielding hybrids had ECT higher than 30.0 ?sg-1 cm-1. The GY correlated with seed diameter (SDT) (0.40**), seed width (SWD) (0.36**), seed length (SLG) (0.35**), seed area (SAR) (0.30**) and seed vigour (SVI) (0.30**). The SAG correlated with SDT, SLG, seed thickness (STH) and SAR. All the seed vigour traits correlated with one another. The PC I explained GY, SDT, SWD, SLG, SAR and SVI, indicating their importance in GY improvement. Seed angle, length and diameter were versatile in maize varietal selection. Identified high yielding hybrids with seed morphometric and vigour qualities can be explored by seed companies as innovation in the seed production business.

scholarly journals Biomass yield, chemical composition and in vitro digestibility of maize leaves defoliated at different times

2021 ◽  
Vol 37 (1) ◽  
pp. 109-116
Author(s):  
O. A. Fasae ◽  
O. T. Akinniyi ◽  
A. E. Oladejo ◽  
K. A. Elemo
Keyword(s):  
Chemical Composition ◽  
Grain Yield ◽  
Block Design ◽  
In Vitro Digestibility ◽  
Leaf Yield ◽  
Randomized Complete Block Design ◽  
Maize Leaves ◽  
Ear Height ◽  
Maize Grain

This experiment was conducted to determine the effect of defoliation time on the productivity of maize, forage and in vitro digestibility of maize leaves (ML). The response of grain yield, plant height, days to 50% silking, ear height and leaf yield as well as the chemical composition of ML variety "Obasuper" to defoliation time were evaluated in a randomized complete block design with four defoliation treatments 3, 6, 9 weeks after planting (WAP) and undefoliated treatment replicated four times. Results showed that defoliating maize at 9 WAP and beyond did not have any significant (P>0.05) effect on the grain and leaf yield as well as other yield components of maize. Grain and leaf yield at 9 WAP averaged 2778.35 and 975.74 DM kg/ha respectively. The DM, crude protein (CP) and fibre fractions contents of ML varied significantly (P<0.05) among the defoliation treatments with maize defoliated at 9 WAP having a CP content of 12.6%. Ether extract and ash contents were not affected (P>0.05) by defoliation time. The in vitro digestibility of ML decreased significantly (P<0.05) with increase in the time of defoliation ranging from 59.2 and 66.4%. IT was concluded that maize variety "Obasuper" can produce forage of high quality and quantity when defoliated 9 weeks after planting wihout any anyadverse effect on the grain yield of maize. 

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