Behavior of Some Maize Hybrids Cultivated With Different Plant Densities

El-Metwally, E.; El-Deeb, A. A.; Safina, Sayed Ahmed; Rabbani, B.

doi:10.21608/jpp.2011.85582

Cited by 3 publications

(5 citation statements)

References 8 publications

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“…The increases in grain yield when plants were sown at lowest hill spacing (15 cm) may be due to increase in number of rows/ear and number of grains/ear. These results in good agreement with those reported [4,26]. This may be due to more approach uniformity by sown at 15 cm hill spacing.…”

Section: Discussionsupporting

confidence: 92%

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Maize Hybrids Yield as Affected by Inter and Intra Row Spacing

Kandil¹,

Sharief²,

Abozied³

2017

IJEAB

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Section: Discussionsupporting

confidence: 92%

“…In this respect, [1,2] summarized that for obtaining a higher maize yield and net income, maize hybrids had different responses to agronomic characters and grain yield. [3,4] showed a significant difference between maize hybrids in plant height, No. of ear/plant, barren %, LAI, No.…”

Section: Introductionmentioning

confidence: 95%

Maize Hybrids Yield as Affected by Inter and Intra Row Spacing

Kandil¹,

Sharief²,

Abozied³

2017

IJEAB

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“…Edmeades et al (2000) found that high plant densities enhance interplant competition for assimilates, particularly during the period bracketing silking, favoring epical dominance and decreasing the ratio of ear to tassel growth rate. Similar results were reported by Zeidan et al (2006), Maddonni et al (2006), Shakarami & Rafiee (2009), Gozubenli (2010), EL-Metwally et al (2011) and Sarwar et al (2016).…”

Section: Yield Attributessupporting

confidence: 90%

Response of some yellow maize crosses to N- fertilizer rates and plant densities at Toshka Region

Awadalla

Morsy

2016

Egypt. J. Agron.

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IELD studies were conducted at Toshka region, South Valley of ……Egypt , during the summer seasons of 2014 and 2015 to evaluate the some yellow maize single crosses, i.e. SC-162, SC-168 and SC-176 under three plant densities of (21000, 27300 and 33600 plant/fad) and three levels of nitrogen fertilizer (90,120 and 150 Kg N/fad). The results showed that N-levels were affected significantly all characters under study, i.e. growth characters, grain yield, protein content and the nitrogen use efficiency (NUE), except leaf area of the top most ear/plant. The application of 150 kg N / fad was resulted significant increase in grain yield and estimated by 4340 and 4235 kg /fad in 2014 and 2015, respectively. The plant densities also exhibited significant effect on the studied characters, except leaf area of the top most ear/plant, ear length, ear diameter, number of grains/row and protein content. The increasing of plant density from 21,000 to 33,600 plant/fad increased the grain yield up to 13.44 and 17.27 % in 2014 and 2015 seasons, respectively. The single crosses of maize differed significantly for ear length, NUE and grain yield during the 2014 season and the hybrid SC-176 recorded the highest value for grain yield of 4246.6 kg / fad. The interaction N levels x plant densities interaction were significant for plant height and NUE in both seasons and grain yield in the 2015 season. The plant density x maize crosses interaction were significantly also for ear length, grain yield and NUE in the 2014 season and the 500-grain weight in the 2015 season. Moreover, significant interaction among the three factors for grain yield and NUE through the 2014 season and stem diameter in 2015 season. The economic evaluation showed that the highest net return obtained from sowing SC-176 cross by plant density of 33600 plant/fad and supplemented by 150 kg N / fad.

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“…Meanwhile, a progressive increase in plant height was obtained with progress of maize-plant development towards physiological maturity with variable rate depending on stage of growth Pandey et al, (2000), Tajul et al, (2013), Shaalan et al, (2015), Kelly et al, (2015) and Akinnuoye-Adelabu and Modi (2017). In the mean times, our results presented here for plant density effects on plant height were in harmony with the results of EL-Metwally et al, (2011), El-Shahed et al, (2013 and El-Sobky and El-Nagar (2016), since, their results showed that with increasing plant density, plant height was not affected. Similar results for this trait were reported by Turgut et al, (2005), Carpici et al, (2010), Baghdadi et al, (2012), Karashin (2014), Kumar et al, (2016).…”

Section: Plant Characterssupporting

confidence: 92%

“…On the other hand, LAI varied among Egyptian maize hybrids. EL-Metwally et al, (2011), El-Shahed et al, (2013 and Hegab et al, (2019), illustrated that, SC10 gave the highest LAI (3.48 m 2 m -2 ), whereas, TC 352 gave the least LAI (2.71 m 2 m -2 ) Khan et al, (2012) and Baghdadi et al, (2012) noticed that, LAI progressively increased up to 65 DAS and then start declining. As plant density increased, leaf area index LAI increased according Kumar and Walia (2003), Bruns and Abbas (2006), Abuzar et al, (2011), Khalil et al, (2010), Baghdadi et al, (2012), El-Shahed et al, (2013), El-Hosary et al, (2019 and Salifu and Dóka (2019).…”

Section: Growth Parametersmentioning

confidence: 98%

Productivity and Physiological Potentiality of Some Silage Maize Genotypes

Omar

Shalaby

Ahmed

et al. 2023

Menoufia Journal of Plant Production

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An experiment was conducted in the summer season of 2019 at the Agricultural Experiment Station, Faculty of Agriculture (El-Shatby), Alexandria University, Egypt. The main objectives of this study were: (i) to trace the physiological development of maize hybrids with reference to growth parameters, and (ii) to assess yield, quality and responses of silage maize genotypes to plant densities. Eight corn hybrids were used in this study, seven were single cross hybrids three of them were white-grain: SC10, SC128, SC131 and four yellow-grain SC166, SC167, SC168, SC176 and one whitegrain three-way cross namely TWC321. Hybrids were developed by the Ministry of Agriculture, Maize Research Program, and Agriculture Research Center, Egypt. The fieldwork included two plant densities 20,000 and 35,000 plants faddan -1 i.e.; 47,619 and 83,333 plant hectare -1 , traits were measured at three development stages i.e. (35, 70 and 105 days after emergence). Spilt -plot design in a randomized complete block design, with three replications was employed. Sub-plot was 18 m 2 of six ridges each of 0.75 m width and four-meter long. Corn hybrids were distributed in the main-plots, whereas, the subplots contained the two plant densities. The results indicated that, as plant density increased from 47,619 to 83.333 plant hectare -1 , stalk diameter decreased from 24.53 to 20.91 mm, upper leaf chlorophyll content decreased from 46.45 to 42.01 SPAD, lower leaf chlorophyll content decreased from 36.74 to 31.31 SPAD, the no. of ears per plant decreased from 1.38 to 1.10 and plant dry weight decreased from 293 to 195 g plant -1 , respectively. Plant densities significantly gave similar plant dry weight after 35 days from emergence, while, low plant density (47.619 plant ha -1 ) gave the heaviest plant dry weight after 70 and 105 DAE (279 and 584 g plant -1 , respectively).The results indicated that relative growth rate of maize hybrids during the first developmental stage (35-70 DAE) was significantly superior to measured figures in the late season stage (70-105 DAE). Also, hybrids with significantly higher RGR during the early season's stage were SC10, SC128, SC131 SC168 and SC176. While SC167 and TWC321 significantly exhibited lower values. By the late season stage (70-105 DAE) all hybrids had similar values of RGR. Effect of plant density on total dry forage yield over maize-hybrids and developmental stage, the highest significant total dry forage yield was recorded at a plant density of 83.333 plant hectare -1 (15.70 t. ha -1 ), while, the plant density of 47,619 plant hectare -1 significantly recorded lower value (13.92 t. ha -1 ). Maize hybrids were significantly divided into two groups regarding protein yield.

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Behavior of Some Maize Hybrids Cultivated With Different Plant Densities

Cited by 3 publications

References 8 publications

Maize Hybrids Yield as Affected by Inter and Intra Row Spacing

Maize Hybrids Yield as Affected by Inter and Intra Row Spacing

Response of some yellow maize crosses to N- fertilizer rates and plant densities at Toshka Region

Productivity and Physiological Potentiality of Some Silage Maize Genotypes

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