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Showing 1 to 20 of 59 for “"plant density"”.
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Survey of plant density tolerance in U.S. maize germplasm
… to identify sources of favorable alleles for plant density tolerance and better understanding the genetics involved. Hybrids created using a genetically diverse set of inbreds representing parentage of key heterotic sub-groups were evaluated at plant densities ranging from 19,000 plants per …
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Effect of plant density on soybean seed yield and quality
The effects of plant density on the growth, development, seed yield and seed quality of soybean (Glycine max [L.] Merrill) were investigated in the 2001/2002 season on a Wakanui silt loam soil at Lincoln University, Canterbury. Seeds of two cultivars, Northern Conquest and March were hand sown on 1 …
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Hybrid and plant density effects on nitrogen response in corn
… use efficiency along with the emphasis on higher plant density for maximum yields of modern hybrids have raised questions about interactions between N rate and plant density for different hybrids. Four corn hybrids (Pioneer 33D49, 33K44, 33W84, and 34F07), chosen to represent a range of responses …
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Vegetative tillering plasticity modulates agronomical optimum plant density in winter wheat
Agronomic optimum plant density (AOPD) is the minimum number of plants per area required to maximize grain yield. In winter wheat (Triticum aestivum L.), this concept becomes complex due to the tillering trait and its phenotypic variance due to the interaction between genotype and environment (G × …
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The microclimate of narrow and wide row sorghum with equal plant density
Digitized by Kansas Correctional Industries
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Identification of QTL and candidate genes for plant density tolerance in maize
… This can be done by increasing the number of plants grown per unit area while simultaneously maintaining per plant yield. This increase in plant density will cause interplant competition for nutrients, light, and water. The ability to tolerate the increased plant density will determine the …
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Canopy Architecture and Plant Density Effect in Short-Season Chickpea (Cicer arietinum L.)
… The current recommended chickpea population density of 44 plants m-2 is based on preliminary studies and a narrow range of 20 to 50 plants m-2. The aims of this study were to i) determine optimum population density of varying chickpea canopy types, i.e., leaf type and growth habit, by …
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Evaluation of Soil Compaction, Plant Density, and Resistance to Phytophthora Root Rot in Soybeans
… inheritance of resistance to phytophthora in the plant introduction (PI) 92718-2.
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Soybean growth and yield response to interplant competition relief in various plant density environments
… component production in response to changes in plant population and competition. Previous research has addressed these issues from various aspects, however, there is a lack of information regarding how interplant competition affects plant size variability, or how different sized plants respond …
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Optimum plant density for crowding stress tolerant processing sweet corn in the Upper Midwest
… of modern hybrids to better tolerate higher plant densities (i.e., crowding stress) than their predecessors. Yield gains in processing sweet corn, however, pale in comparison to field corn. Recent studies have identified modern sweet corn hybrids with crowding stress tolerance (CST); however, …
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Phenotypic plasticity in soybeans (glycine max (l.) merrill) associated with plant density and phenological stage at thinning
… when exposed to either supra or sub optimal plant density stress. However, it is not known whether determinate and indeterminate varieties respond the same and at what phenological stage a soybean plant is able to exhibit adaptive plasticity or elasticity response after thinning. The …
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Phenotypic plasticity in soybeans (glycine max (l.) merrill) associated with plant density and phenological stage at thinning
… when exposed to either supra or sub optimal plant density stress. However, it is not known whether determinate and indeterminate varieties respond the same and at what phenological stage a soybean plant is able to exhibit adaptive plasticity or elasticity response after thinning. The …
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Effect of irrigation technology and plant density on cotton growth, yield, yield components, and water use efficiency
… assess the effect of irrigation technology and plant density on cotton growth, yield, and yield components, and (ii) determine the actual evapotranspiration, water use efficiency, and grass-reference crop coefficients of cotton under different irrigation technologies and rainfed conditions. Four …
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The effect of field pea (Pisum sativum L.) basal branching on optimal plant density and crop competitiveness
… recommended seeding rate in field pea is 88 plants m-2. As certain pea genotypes have the ability for increased branching, it may be possible for a producer to seed at a lower plant population without reduced yield or to choose a highly branched cultivar to have reduced risk of yield loss …
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Changes in the Components of Yield in Different Morphological Types of Maize Associated With Plant Density in Northern India
Made available in DSpace on 2014-12-10T17:12:43Z (GMT). No. of bitstreams: 1 6915391.pdf: 2296401 bytes, checksum: 46fa147b35c928ea884c3cacf2738510 (MD5) Previous issue date: 1969
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Physiological aspects of relative changes in nitrogen and plant density stress tolerances over a 38-year period of US maize hybrid introductions
… grain filling; enhanced tolerance to higher density; and canopy architecture changes. Newer hybrids were known to accumulate more dry matter and nitrogen in the post-silking period, but achieving a more comprehensive knowledge of pre-silking and post-silking dynamics required further …
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Agronomic and phenotypic responses to 75 years of recurrent selection for yield in the Iowa Stiff Stalk synthetic maize population
<p>The plant density at which Zea mays L. hybrids achieve maximum grain yield has increased throughout the hybrid era while grain yield on a per plant basis has increased little. Changes in plant traits including grain yield, moisture, test weight, stalk and root lodging, flag leaf angle, …
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Management of higher populations in maize
While increasing plant density is a promising strategy for higher grain yield in maize, high plant populations must be managed to lesson plant competition. Previous research has focused on different management strategies for higher plant densities, mainly row configuration, but rarely a combination …
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Genetic and agronomic approaches for improving nitrogen use and maize productivity
… by itself to increase maize productivity. Plant density tolerance also should be considered due to the possible interactions of hybrid, N rate, and plant density, as well as the need to increase plant density as a strategy to increase yield per unit area. The broad questions addressed by …
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