scholarly journals Plant Density Effect on Silage Yield of Maize Cultivars

2016 ◽  
Vol 8 (4) ◽  
pp. 186
Author(s):  
Mohammad Hossein Haddadi ◽  
Masoud Mohseni
Keyword(s):  
Crude Protein ◽  
Plant Density ◽  
Agricultural Research ◽  
Block Design ◽  
Density Effect ◽  
Row Spacing ◽  
Research Station ◽  
Maize Hybrids ◽  
Maize Cultivars ◽  
Ear Height

<p>In order to study of plant density effect on silage yield of new maize hybrids an experiment was conducted in factorial on the basis of randomized completely block design with four replications at agricultural research station in Qarakheil (Qaemshahr) in 2014 in Iran, after wheat harvesting. New hybrids are SC703 and SC705 that were compared with SC704. Four densities were 75,000, 85,000, 95,000 and 105,000 plant per hectar. Eeach plant planted in four rows with intera-row spacing of 75 cm. Silage yield, plant height, ear height, kernel number in ear row, kernel row number,dry silage yield, kernel, stem and leaves protein were measured. Result showed that SC704 had the highest silage yield with 70.96 t/ha. SC705 and SC703 had 64.67 and 60.22 t/ha silage yield. Density of 105,000 and 95,000 plant per hectar had higher silage yields in compare of other densities with 67.04 and 66.20 t/ha respectively. Result showed that SC704 had the highest dry silage yield with 43.19 t/ha. SC705 and SC703 had 38.69 and 36.75 t/ha dry silage yield respectively. Density of 105,000 and 95,000 plant per hectar had higher dry silage yields in compare of other densities with 40.67 and 40.55 t/ha respectively. With increasing of density, crude protein (in kernel, stem and leaves) decreased.</p>

scholarly journals Effects of Plant Pattern and Nitrogen Fertilizer on Yield and Yield Components of Silage Corn Cultivars

2016 ◽  
Vol 4 (1) ◽  
pp. 152
Author(s):  
Mohammad Hossein Haddadi ◽  
Masoud Mohseni
Keyword(s):  
Plant Height ◽  
Agricultural Research ◽  
Dry Weight ◽  
Forage Yield ◽  
Row Spacing ◽  
Research Station ◽  
Significant Difference ◽  
Leaf Yield ◽  
Ear Height ◽  
Better Than

To study effect of sowing pattern and nitrogen on maize silage yield and its dependents components a trial was done at split-split plot design in compeletly randomized block at four replications in Qrakheil(Qaemshahr) agricultural research station in 2015 in Iran. Row spacing was chosen as main plots including: 65cm, 75cm and 85cm.Two cultivars (Sc704 and Sc770) in sub plots and three levels of N (250, 350 and 450 kg ha1) in sub-sub plots were laid out. Silage forage yield, ear and dry ear yield, leaf and dry leaf yield, plant dry weight and stem and dry stem weight,plant height , ear height,kernel number in ear row and row number in ear were measured.The results indicated that row spacing, were not affected on investigated traits. While nitrogen effected on silage yield, ear and dry ear yield, leaf and dry leaf yield, plant dry weight and stem and dry stem weight, plant height and ear height and showed significant difference. Sc704 had significant difference on plant silage weight, dry and wet stem weight with Sc770. Amount of 350kg/ha nitrogen was caused the most silage yield (36.74t/ha) and plant dry weight (16.64 t/ha) that had not significant difference with usage of 450kg/ha nitrogen(16.46 t/ha). Amount of 450kg/ha nitrogen was caused the most silage yield (37.30t/ha) that had not significant difference with usage of 350kg/ha nitrogen (36.74 t/ha). The most silage yield (38.21t/ha) obtained from Sc704 that was better than Sc770 (34.22 t/ha). The most plant dry weight (16.54) obtained from Sc704 that had not significant difference with Sc770 (15.92 t/ha).

scholarly journals Spatial Arrangement Management of Maize Hybrids at Semiarid Microclimate

2020 ◽  
Vol 8 (2) ◽  
pp. 17
Author(s):  
José Fidelis Dos Santos Neto ◽  
Misael Mendes Soares ◽  
Sara Santos Cardoso ◽  
Edson De Sousa Silva ◽  
Helton Devison De Lima Silva ◽  
...  
Keyword(s):  
Zea Mays L ◽  
Plant Density ◽  
Block Design ◽  
Spatial Arrangement ◽  
Production Costs ◽  
Row Spacing ◽  
Maize Hybrids ◽  
Randomized Complete Block Design ◽  
Poaceae Family ◽  
Microclimatic Conditions

Maize (Zea mays L.) is a plant of the Poaceae family, originating in Central America and cultivated in practically every region of the world. In Brazil, it is the most important cereal for the economy, but the productivity is lower when compared to other countries. This may be due to inadequate plant density per unit area, low soil fertility and spatial arrangement of plants. Thus, the development of better performance hybrids and changes in sowing density and spacing appear as techniques for increasing productivity without increasing production costs. Therefore, the objective of this work is to evaluate the agronomic performance of two maize hybrids as a function of plant population and row spacing in semiarid microclimate to identify those agronomic and microclimatic factors that influence it. Two simultaneous fieldwork were conducted in an experimental area, at the microregion of Paraíba swamp. A randomized complete block design was used with six treatments distributed in a 2 x 3 factorial scheme, resulting from the combination of two maize hybrids (H1 and H2) and three population densities (40,000, 60,000 and 80,000 plants.ha-1) for Experiment 1; and two maize hybrids (H1 and H2) and three spacings (0.40, 0.60 and 0.80 m) for Experiment 2. In general, the results of this study suggest that larger populations of maize provide significant increases in grain yield for microclimatic conditions Paraíba semiarid, and when environmental factors are not limiting.

Effect of plant populations and row spacings on early and late maize hybrids in the Ord Valley

1975 ◽  
Vol 15 (74) ◽  
pp. 406 ◽  
Author(s):  
DF Beech ◽  
JJ Basinski
Keyword(s):  
Seed Weight ◽  
Dry Matter ◽  
Population Increase ◽  
Row Spacing ◽  
Research Station ◽  
Nitrogen And Phosphorus ◽  
Plant Populations ◽  
Maize Hybrids ◽  
Maize Cultivars ◽  
Number Of Seeds

The effect of three row spacings (50 cm, 75 cm and 100 cm) and three plant populations (44,500, 59,300 and 89,000 plants ha-1) on two maize cultivars (short, early XL 45 and tall, late Q 692) was investigated at Kimberley Research Station. None of the crop measurements was significantly affected by row spacing. Tasselling, silking and maturity occurred respectively 10, 12 and 16 days later in Q 692 than in XL 45. Their time of occurrence was not affected by populations. Q 692 was considerably taller and had more leaves per plant. Its canopy thickness above the cobs was also considerably greater. At silking, total dry matter was higher in Q 692, and in both cultivars higher at higher population densities. The production of dry matter after silking increased with increasing populations in XL 45 but declined in Q 692. The grain yield of XL 45 increased significantly up to 59,300 plants ha-1 and then levelled off. On the other hand the yield of Q 692 fell significantly with each population increase. Population had no effect on mean seed weight, which was slightly higher in Q 692. The detrimental effects of increasing population on the number of barren plants and on the number of seeds per cob were offset by the higher number of cobs per hectare in XL 45 but not in Q 692. Nitrogen and phosphorus contents were not affected by populations and were similar in both hybrids

scholarly journals Green ear yield and grain yield of maize cultivars in competition with weeds

2010 ◽  
Vol 28 (1) ◽  
pp. 77-85 ◽  
Author(s):  
P.S.L. Silva ◽  
K.M.B. Silva ◽  
P.I.B. Silva ◽  
V.R. Oliveira ◽  
J.L.B. Ferreira
Keyword(s):  
Grain Yield ◽  
Plant Height ◽  
Block Design ◽  
Corn Yield ◽  
Modern Agriculture ◽  
Maize Cultivars ◽  
Randomized Complete Block Design ◽  
Ear Height ◽  
Herbicide Use ◽  
Ground Part

The reduction in herbicide use is one of the greatest interests for modern agriculture and several alternatives are being investigated with this objective, including the adoption of cultivars that suppress weeds. The objective of this study was to verify if maize cultivars develop differently, in competition with weeds, to produce green ears and grain. Randomized complete block design was used, with split-plots and five replications. Cultivars DKB 390, DKB 466, DKB 350, AG 7000, AG 7575 and Master, were evaluated in the plots, without weeding and two weedings (at 22 and 41 days after sowing) in sub plots. Twenty-one species were identified in the experimental area, the most frequent being Gramineae (Poaceae), Euphorbiaceae, Leguminosae (Fabaceae) and Convolvulaceae species. There was no difference in the dry biomass above-ground part of the weeds in the plots of the evaluated cultivars. The cultivars behaved similarly in treatments with or without hoeing, except for plant height and ear height evaluations. Without hoeing, plant height increased in cultivar DKB 390, while plant height and ear height decreased in cultivar AG 7575. In the other cultivars, these traits did not change under weed control. The presence of weeds decreased the values of all traits employed to assess green corn yield, with the exception of the total number of green ears and grain yield.

scholarly journals Effects of Some Cover Crops on Light Extinction and Weed Coverage in Sunflower Field

2014 ◽  
Vol 47 (2) ◽  
pp. 29-40 ◽  
Author(s):  
S. Hassannejad ◽  
A.R. Mobli
Keyword(s):  
Extinction Coefficient ◽  
Cover Crops ◽  
Cover Crop ◽  
Agricultural Research ◽  
Block Design ◽  
Light Extinction ◽  
Research Station ◽  
Hairy Vetch ◽  
Weed Species ◽  
Weed Cover

Abstract In order to evaluate the effects of some cover crops on extinction coefficient and weed cover percentage in sunflower, a field experiment was conducted based on a randomized complete block design with nine treatments and three replicates at the Agricultural Research Station, Tabriz University of Iran, during growing season 2012-2013. Treatments were triticale, hairy vetch, rapeseed, triticale + hairy vetch, triticale + rapeseed, hairy vetch + rapeseed, application of trifluralin herbicide, and controls (weed infested and weed free without planting cover crop). Result indicated than once established, living mulches can rapidly occupy the open space between the rows of the main crop and use the light that would otherwise be available to weeds. In the all cover crops treatments, the light extinction coefficient was increased and weed cover percentage was reduced. Highest reduction in total weed species was observed in hairy vetch + rapeseed and triticale + rapeseed cover crop 61.92% and 61.43 %, respectively, compared to weed infested, so this treatment was better than trifluralin application. It concluded that cover crops could be considered as integrated strategies for weed sustainable management.

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 Penampilan Varietas Jagung Unggul Baru Bermutu Protein Tinggi di Jawa dan Bali

2017 ◽  
Vol 10 (2) ◽  
pp. 49 ◽  
Author(s):  
Muhammad Azrai
Keyword(s):  
Amino Acids ◽  
Yield Components ◽  
Future Prospect ◽  
Block Design ◽  
Quality Protein Maize ◽  
Row Spacing ◽  
Randomized Block Design ◽  
Puccinia Polysora ◽  
Ear Height ◽  
Biomass Plant

<p><strong>Abstract</strong></p><p>Study on the performance of two quality protein maize (QPM) varieties (Srikandi Putih-1 and Srikandi Kuning-1) plus two Indonesian open pollinated varieties (Bayu and Lamuru) was conducted at seven environments in Java and Bali. The experiments were arranged in a randomized block design with three replications. Each variety was grown in a four-row plot with 5 m length, 75cm apart and 25 cm within row spacing and one plant per hill. Observations were made on yield, biomass, plant height, ear height, flowering dates, yield components, plant and ear aspect, husk cover, diseases incidence of Puccinia polysora and Helminthossporium maydis, protein contains, lysine, and tryptophan-amino acids contains. In general, Srikandi Putih-1 and Srikandi Kuning-1 varieties had a good adaptations under all environments. They contained nearly twice the lysine and tryptophan-amino acids compared to Bayu and Lamuru varieties. Therefore, they have future prospect for the development of protein synthesis in humans and monogastric animals.</p><p><strong>Abstrak</strong></p><p>Penelitian penampilan varietas jagung unggul baru bermutu protein tinggi (Srikandi Putih-1 dan Srikandi Kuning-1) dan dua varietas unggul nasional (Bayu dan Lamuru) telah dilaksanakan pada tujuh lokasi di Jawa dan Bali pada tahun 2003 sampai 2004. Penelitian ditata dalam percobaan acak kelompok dengan tiga ulangan. Setiap varietas ditanam pada petakan empat baris, panjang 5 m, jarak antar baris 75 cm, jarak dalam barisan 25 cm, dan ditumbuhkan satu tanaman per rumpun. Pengamatan dilakukan terhadap hasil biji, biomas segar, tinggi tanaman, panjang tongkol, umur berbunga, komponen hasil, skor penampilan tanaman, penutupan kelobot, penyakit karat dan hawar daun, serta kandungan protein kasar, asam amino lisin, dan triptofan. Secara umum varietas Srikandi Putih-1 dan Srikandi Kuning-1 dapat beradaptasi baik pada semua lingkungan. Selain itu, kedua varietas tersebut mempunyai kandungan lisin dan triptofan hampir dua kali lipat dibandingkan dengan varietas Bayu dan Lamuru. Oleh karena itu, kedua varietas tersebut mempunyai prospek untuk dikembangkan sebagai sintesis protein pada ternak monogastrik dan manusia.</p>

scholarly journals THE INFLUENCE OF SPRAYING WITH POTASSIUM SILICATE AND IRRIGATION WITH SALINE WATER IN SANDY SOIL ON Calendula officinalis L.

2019 ◽  
pp. 39-56
Keyword(s):  
Agricultural Research ◽  
Saline Water ◽  
Tap Water ◽  
Block Design ◽  
Foliar Spray ◽  
Dry Weight ◽  
Potassium Silicate ◽  
Research Station ◽  
Calendula Officinalis ◽  
Calendula Officinalis L

Two pots experiments were conducted at the Experimental Farm of El-Qassasin Horticultural Research Station, Agricultural Research Center, Ismailia Governorate, Egypt, during two successive seasons of 2016/2017 – 2017/2018, to investigate the effect of potassium silicate at (0, 4, 6, and 8 cm3/l) as a foliar spray under different levels of water salinity (tap water, 1000, 2000 and 3000 ppm) on Calendula officinalis L. plant. The experiment was performed in complete randomized block design as factorial experiment with 3 replicates. The obtained results cleared that using salinity levels decreased growth parameters (plant height, number of branches/plant, fresh and dry weights of herb/plant), flowering parameters (flower diameter, number of flowers/plant, fresh and dry weight of flowers (g/plant) during eight cuts and fresh and dry weight of flowers (g/plant/season)) and chemical constituents (chlorophyll a, chlorophyll b, carbohydrate and carotenoid contents) compared to control. Moreover, the highest values in these parameters were registered by potassium silicate at 8 cm3/l concentration. Proline content increased in leaves with using saline water at 3000 ppm + potassium silicate at 8 cm3/l. Generally, it could be concluded that potassium silicate at 8 cm3/l, showed a uniform impact in alleviating inhibition of Calendula officinallis L. plant growth and productivity under moderate salinity stress condition.

scholarly journals Between-row spacing and local accession on the yield and quality of garlic

2016 ◽  
Vol 7 (1) ◽  
pp. 112 ◽  
Author(s):  
Jamal-Ali Olfati ◽  
Mohammad-Bagher Mahdieh-Najafabadi ◽  
Mohammad Rabiee
Keyword(s):  
Plant Density ◽  
Cultural Practices ◽  
Block Design ◽  
Growth Yield ◽  
Row Spacing ◽  
Fresh Market ◽  
Yield And Quality ◽  
High Plant Density ◽  
Plant Stand

Garlic is primarily grown for its cloves used mostly as a food flavoring condiment. Previous studies carried out on plant density indicate its direct influence on yield. Plant density depends on the genotype, environmental factors, cultural practices, etc. This study was established to determine the effects of different between-row spacing on growth, yield, and quality of four local accession of garlic. It was laid out on two-factorial Randomized Complete Block Design with three replications during two years. Four local accession of garlic (Langroud, Tarom, Tabriz and Hamedan) were culture in three between-rows spacing (15, 25 and 35 cm) during two years. The results of two cultivated years were different. Plant density changed when garlic cultured with different between row spacing. In present research plant yield increased when the lower between row spacing and high plant density were used but the yield improvement occurring at increased plant stand is offset by the reduction in bulb size and some quality indices such as total phenol and antioxidant which severely affects quality and market value, when garlic is produced for fresh market.

scholarly journals IMPACT OF PLANT GROWTH INHIBITORS ON THE GROWTH AND YIELD OF SORGHUM

2021 ◽  
Vol 52 (6) ◽  
pp. 1431-1440
Author(s):  
N. M. Abood ◽  
E. M. SHALAL ◽  
M. I. HAMDAN
Keyword(s):  
Plant Growth ◽  
Dry Matter ◽  
Agricultural Research ◽  
Block Design ◽  
Growth And Yield ◽  
Control Treatment ◽  
Research Station ◽  
Dry Matter Yield ◽  
Growth Inhibitors ◽  
Plant Growth Inhibitors

Field experiment was carried out during the spring and fall seasons of 2019 at the Abu Ghraib Research Station of the Agricultural Research Office/ Ministry of Agriculture, was aimed to investigate the effect of plant growth inhibitors on growth and yield of several sorghum varieties .Randomized Complete Block Design within split plot arrangement with three replications was used. The main plot consists of three growth inhibitors (Cycocel, Ethiphon, and Mebiquat), which were added at stages six and eight leaf stage, in addition to the control treatment (distilled water only), the sub plot was included three cultivars (Mabrouk, Buhooth 70 and Giza 113). The results showed in both seasons significant interaction between cultivars and growth inhibitors in most of the studied traits. The plants of the variety Giza 113 sprayed with Ethiphon recorded the lowest period of reaching physiological maturity, the highest average dry matter yield, and the highest weight of 1000 grains (89.00 days, 17.32 ton ha-1, and 39.33 gm) respectively. The same variety recorded the highest content of chlorophyll in the leaves and the highest grain yield due to the effect of Mebiquat (49.50 spad, 3.93 ton ha-1. The cultivar Buhooth 70 with the effect of Cycocel achieved the highest average of dry matter yield of 33.27 ton ha-1.

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