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cornears, etc ; agriculture; corn; industry; water content; Show all 5 Subjects
Abstract:
... The mechanical harvesting of corn has always been a problem for the development of the corn industry. In the present investigation, a tangential flow–transverse axial flow threshing test system was designed based on the 4YL-4/5 harvester. The structure design was modular, and the threshing drum and other key parts could be changed, or the technical parameters could be adjusted according to the nee ...
cornears, etc ; Arabidopsis; agriculture; corn; phytochrome; plant height; red light; Show all 7 Subjects
Abstract:
... Increasing the planting density of maize is an effective measure to improve its yield. However, plants under high planting density tend to trigger shade avoidance syndrome (SAS), reducing lodging resistance and ultimately yield drop. Phytochrome B (phyB) plays a dominant role in mediating shade avoidance response. This study constructed two hyperactive mutated alleles of maize PHYB1: ZmPHYB1Y⁹⁸F ( ...
cornears, etc ; agriculture; corn; ears; electronics; grain yield; phenotype; stress tolerance; Show all 8 Subjects
Abstract:
... Certain traits of maize ears, such as kernels per ear, kernels per row, and rows per ear, are highly related with the grain yield and stress resistance. They can be used as quantitative indices for selecting superior varieties and analyzing experimental results in maize breeding. However, these traits are often manually obtained, which is laborious and prone to error. Image-based object counting m ...
cornears, etc ; corn; cultivars; genetic variation; phenotypic variation; plant height; Benin; Show all 7 Subjects
Abstract:
... Seeds are the most important input in agricultural production and its quality seed determines the yield of the crop. They contribute to nearly 30% of crop productivity. The present study aims at surveying, collecting and characterizing maize accessions from the North, Centre and South Benin. Thirty-two (32) accessions were collected from 11 townships of Benin. Four experiments (Bassila, Glazoue, N ...
cornears, etc ; Zea mays; canopy; corn; ethephon; grain yield; gravity; hybrids; plant analysis; soil; transmittance; Show all 11 Subjects
Abstract:
... Increasing planting density is an effective way to improve maize yield, but high plant populations often cause a lodging problem. This experiment was conducted to investigate the effect of increasing planting density on stalk lodging resistance and grain yield, and to explore the effects on stalk and yield properties of spraying ethephon in densely planted summer maize. The summer maize hybrid, Xu ...
... Maize ear carries paired spikelets, whereas the ear of its wild ancestor, teosinte, bears single spikelets. However, little is known about the genetic basis of the processes of transformation of single spikelets in teosinte ear to paired spikelets in maize ear. In this study, a two-ranked, paired-spikelets primitive maize and a two-ranked, single-spikelet teosinte were utilized to develop an F₂ po ...
... Indigestible NDF (iNDF) is an entity in feed evaluation systems. In this study, iNDF is defined as the portion of NDF not digested after 288 h of rumen incubation in Dacron bags with 12 µm pore size. However, the method is resource demanding. The objective of this study was to elucidate the effect of lignin and hemicellulose monomers on iNDF variation within and among forage types and their abilit ...
cornears, etc ; algorithms; automation; color; computer software; corn; grain yield; image analysis; morphogenesis; phenotype; plant adaptation; plant response; soil water deficit; stress response; Show all 14 Subjects
Abstract:
... BACKGROUND: Characterizing plant genetic resources and their response to the environment through accurate measurement of relevant traits is crucial to genetics and breeding. Spatial organization of the maize ear provides insights into the response of grain yield to environmental conditions. Current automated methods for phenotyping the maize ear do not capture these spatial features. RESULTS: We d ...
cornears, etc ; corn; ears; electron microscopy; endosperm; genes; genetic engineering; genetically modified organisms; plant height; reverse transcriptase polymerase chain reaction; rice; starch granules; Show all 12 Subjects
Abstract:
... Maize is one of the most important food crops, and maize kernel is one of the important components of maize yield. Studies have shown that the rice grain-size affecting gene GS5 increases the thousand-kernel weight by positively regulating the rice grain width and grain grouting rate. In this study, based on the GS5 transgenic maize obtained through transgenic technology with specific expression i ...
cornears, etc ; agriculture; center of gravity; corn; culms; fertilizer rates; grain yield; leaves; lignin content; nitrogen; plant density; plant height; root growth; strength (mechanics); Show all 14 Subjects
Abstract:
... Lodging in maize leads to yield losses, worldwide. We determine the effect of traditional nitrogen (N) application rate, i.e., 300 kg ha–¹ (R) and optimized N application rate, i.e., 225 kg ha–¹ (O) under four N application modes, i.e., 50% of N applied at sowing and 50% at the tenth leaf stage (N1); 100% of N applied at sowing (N2); 40% of N applied at sowing, 40% at the tenth leaf stage and 20% ...
cornears, etc ; agronomy; corn; cowpeas; crude protein; economic valuation; forage; forage yield; grain yield; harvest index; intercropping; land use; nitrogen; nitrogen fertilizers; Egypt; Mediterranean region; Show all 16 Subjects
Abstract:
... Intercropping maize and forage cowpea is a widely proposed strategy to improve land use efficiency, and maximize the economic value of the farming system, especially in developing countries with restricted resources. The current study was carried out during the successive summers of 2020 and 2021 in Northern Egypt. The main objective was to evaluate the effect of three N schedules (NS1, NS2, NS3), ...
cornears, etc ; brassinolide; canopy; chromosomes; corn; disease resistance; genes; internode length; leaf angle; males; pedigree; phenotype; phenotypic variation; photosynthesis; plant architecture; plant height; signal transduction; Show all 17 Subjects
Abstract:
... BACKGROUND: The plant architecture traits of maize determine the yield. Plant height, ear position, leaf angle above the primary ear and internode length above the primary ear together determine the canopy structure and photosynthetic efficiency of maize and at the same time affect lodging and disease resistance. A flat and tall plant architecture confers an obvious advantage in the yield of a sin ...
... KEY MESSAGE: Teosinte improves maize grain yield and broadens the maize germplasm. Seventy-one quantitative trait loci associated with 24 differential traits between maize and teosinte were identified. Maize is a major cereal crop with a narrow germplasm that has limited its production and breeding progress. Teosinte, an ancestor of maize, provides valuable genetic resources for maize breeding. To ...
cornears, etc ; CRISPR-Cas systems; auxins; corn; females; florets; genetic variation; genome-wide association study; grain yield; meristems; morphogenesis; mutants; quantitative traits; seeds; single nucleotide polymorphism; sugars; Show all 16 Subjects
Abstract:
... Ear length (EL), which is controlled by quantitative trait loci (QTLs), is an important component of grain yield and as such is a key target trait in maize breeding. However, very few EL QTLs have been cloned, and their molecular mechanisms are largely unknown. Here, using a genome wide association study (GWAS), we identified a QTL, YIGE1, which encodes an unknown protein that regulates EL by affe ...
Iara Gonçalves dos Santos; Anderson Luiz Verzegnazzi; Jode Edwards; Ursula K. Frei; Nicholas Boerman; Leandro Tonello Zuffo; Luiz P. M. Pires; Gerald de La Fuente; Thomas Lübberstedt
cornears, etc ; Zea mays; corn; doubled haploids; genetic background; genetic variance; genome-wide association study; genotyping; germplasm; grain yield; haploidy; inbreeding; plant development; plant height; testcrosses; Corn Belt region; Show all 16 Subjects
Abstract:
... KEY MESSAGE: Spontaneous haploid genome doubling is not associated with undesirable linkage drag effects. The presence of spontaneous doubling genes allows maximum exploitation of variability from the temperate-adapted BS39 population Tropical non-elite maize (Zea mays L.) germplasm, such as BS39, provides a unique opportunity for broadening the genetic base of U.S. Corn Belt germplasm. In vivo do ...
cornears, etc ; Zea mays; active ingredients; application timing; corn; ethephon; florets; grain yield; internode length; leaves; meta-analysis; plant density; plant growth inhibitors; resistance to penetration; seeds; stem elongation; Show all 16 Subjects
Abstract:
... Plant growth retardants (mainly with active ingredient of ethephon) prevent maize (Zea mays L.) lodging as plant density increases, but frequently reduce grain yield if lodging is not a problem, in relation to application time. To explore the effects of ethephon application time on maize yield, literature published in the past 35 years concerning ethephon or ethephon-related plant growth retardant ...
... BACKGROUND: Stimulating maize ear development is an effective way of improving yield. However, limited information is available regarding the regulation of sink strength change from weak to strong at the same position of maize plants. Here, a novel method for stimulating development combined with physiological assays and proteomics was applied to explore the regulation of ear strengthened developm ...
cornears, etc ; corn; cultivars; ears; equipment; pedicel; seeds; water content; Show all 8 Subjects
Abstract:
... The aim of this study was to determine various physical, mechanical, and pedicel strengths of 28 maize cultivars, with initial moisture content ranging between 19.24 to 36.64% (w.b.). These properties are such as slenderness ratio of maize ear, dimensions, density and 100–seed weight of kernels, picking force of kernel pedicel from cob (pedicel strength). The range of the slenderness ratio of maiz ...
cornears, etc ; Chinese cabbage; agriculture; amino acids; ascorbic acid; cabbage; corn; crop yield; fertilizer application; leaf length; leaf width; leaves; nitrogen fertilizers; nutrient use efficiency; plant height; slow-release fertilizers; soil; starch; Show all 18 Subjects
Abstract:
... Optimizing fertilization strategies is crucial for obtaining high crop yields and efficient N utilization. This study aimed to understand the potential increase in crop yield and the N utilization efficiency under biochar-based fertilizer (BF) in a maize–Chinese cabbage rotation system. Biochar-based slow-release fertilizer (BF) is an important nutrient-efficient management strategy. The yields an ...
cornears, etc ; Zea mays; agriculture; carbohydrates; center of gravity; corn; corn stover; developmental stages; fertilizer rates; grain yield; internode diameter; microirrigation; nitrogen; nitrogen fertilizers; plant height; plant morphology; seeds; strength (mechanics); total nitrogen; Show all 19 Subjects
Abstract:
... Stalk lodging in Huang-Huai-Hai summer maize is a serious problem that reduces maize yields and precludes the use of mechanical grain harvesting equipment. In order to determine the effect of nitrogen management on the lodging resistance of maize stalk, three nitrogen application rates of 150, 250, and 350 kg ha⁻¹ (denoted as N150, N250, and N350), and different nitrogen application periods (sowin ...