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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 21 for “"plant spacing"”.
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Effects of Plant Spacing on Yield Components of Sorghum in the Usa and Soybeans in India
Made available in DSpace on 2014-12-12T00:17:43Z (GMT). No. of bitstreams: 1 7121185.pdf: 3951858 bytes, checksum: 5adbe9219c2750aafb1d93e7ac998220 (MD5) Previous issue date: 1971
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Machine Vision Systems for Real-Time Plant Variability Sensing and in-Field Application
In-field variations associated with corn plant spacing, growth stage, and population can lead to a significant yield differences. Since the ability to reduce these variations is directly related to the planter performance, a machine vision-based emerged corn plant sensing system (ECS) was developed …
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Flue-cured tobacco: alternative management systems
… was conducted evaluating the influence of plant spacing, topping height, and harvest method on yield and quality of flue-cured tobacco. Leaf populations of 538,000/ha harvested once-over resulted in a 6.5%, 11.0%, 6.0%, and 13.5% increase in yield, value, price, and grade index, …
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Within-row spacing effect on individual corn plant yield
… has shown that modest non-uniformity of corn plant spacing has small, negative effects on grain yield. The extent to which this influence of distance to adjoining plants is due to compensatory yield adjustments is not known. In 2011 and 2012, high density stands in 76 cm rows were hand thinned …
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Η ΑΠΟΤΕΛΕΣΜΑΤΙΚΟΤΗΤΑ ΤΗΣ ΕΠΙΛΟΓΗΣ ΓΙΑ ΑΠΟΔΟΣΗ ΣΤΟ ΚΑΛΑΜΠΟΚΙ (ZEA MAYS L.) ΟΠΩΣ ΕΠΗΡΕΑΖΕΤΑΙ ΑΠΟ ΔΙΑΦΟΡΟΥΣ ΠΑΡΑΓΟΝΤΕΣ
… MOVING REPLICATE AND VERY WIDELY-SPACED SINGLE PLANTS AS TESTING AND SELECTION UNITS HAVE BEEN DEVELOPED IN AN EFFORT TO INCREASE EFFICIENCY IN PLANT BREEDING. THE PURPOSE OF THIS INVESTIGATION WAS TO DETERMINE THE EFFECTS OF THE TWO HONEYCOMB SELECTION SCHEMES APPLIED AT TWO PLANT SPACINGS AND …
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Surface water flow resistance due to emergent wetland vegetation
… A 6-m by 1-m by 0.4-m recirculating flume was planted with mature common rush, Juncus effusus, a common emergent wetland plant. Three different flow rates (3, 4, and 5 L/s) and three different tailgate heights (0, 2.5, and 5 cm) were used to simulate a variety of wetland conditions. Plant …
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Quantitative multifactor analysis of planter settings and row unit design for corn stand establishment in precision agriculture
… efficiency. Despite considerable advancements in planting technologies, challenges associated with variability in seed placement accuracy, seed depth, and overall population uniformity persist. This variability is attributed to intricate interactions among planter operational parameters, soil …
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Mathematical Models of <i>Zea mays</i>: Grain Yield and Aboveground Biomass Applied to Ear Flex and within Row Spacing Variability
… model, and to study the effect of inconsistent spacing within rows on Zea mays L. yield. Plant spacing other than uniform decreases grain yield and profitability. The population experiments conducted at the Warren County location were a randomized complete block design with three planting …
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The effect of seed tuber size and spacing on the yield , dry matter content and daughter tuber size in three potato (Solanum Tuberosum L.) Varieties
… to determine the effect of seed tuber size and plant spacing on the yield, dry matter content and daughter tuber sizes of three potato varieties. The trial was also meant to determine the combination of seed tuber size and spacing that would give highest economic returns. The varieties used were …
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The effect of seed tuber size and spacing on the yield , dry matter content and daughter tuber size in three potato (Solanum Tuberosum L.) Varieties
… to determine the effect of seed tuber size and plant spacing on the yield, dry matter content and daughter tuber sizes of three potato varieties. The trial was also meant to determine the combination of seed tuber size and spacing that would give highest economic returns. The varieties used were …
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The effects of seed tuber size and spacing on the yield,dry matter content and daughter tuber size in three potato(solanum tuberosum L.)Varieties
… to determine the effect of seed tuber size and plant spacing on the yield, dry matter content and daughter tuber sizes of three potato varieties. The trial was also meant to determine the combination of seed tuber size and spacing that would give highest economic returns. The varieties used were …
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The effects of neighbor, distance, and organic fertilizer on the establishment and early performance of three woody species in a restoration trial in the Kunene region, Namibia
… few have explicitly considered how neighboring plant species and plant spacing as well as organic fertilizer influence restoration outcomes. This study evaluated the effects of neighbor identity, planting distance, and organic fertilizer on the growth, survival, and leaf traits of three woody …
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Improving Uniformity of Potato Crops
… three-tiered population structure consisting of plants, stems and tubers, each of which is a branch of the previous tier. Plant-to-plant variation in the number of stems, number of tubers and yield has long been noted to occur but the causes of this variability and how it impacts the uniformity …
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Hydroponic and Soilless Culture Systems and Transplant Practices Influence Production of Basil (Omicum basilicum L.)
… greenhouse experiments evaluated (1) plant growth and morphology of basil (Omicum basilicum L.) grown in three different hydroponic and soilless substrate systems and (2) seedling tray cell-count and transplant date into hydroponic culture effects on basil growth and yield at harvest. …
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Mechanization of the selective harvest of broccoli
… to mechanical harvesting were made on broccoli plants both years. Head height, stalk diameter, and head weight were strongly affected by harvest time and in-row plant spacing. Height and stalk diameter were moderately correlated to head diameter. A regression model for predicting head diameter …
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The influence of environment on certain constituents of quality and food value of hybrid sweet corn and field corn
… study was made to determine (1) the influence of plant spacing and nitrogen fertilizer on the yield, percentage of soluble solids, the toughness of the pericarp, and protein content of embryos and kernels of hybrid sweet corn, and (2) the influence of locally on the protein content of field corn …
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A comparison of soil properties and plant-to-plant variability in no-till and strip-till corn fields in Illinois
… between ST and NT for linear distance between plants, plant height, stalk diameter, dry biomass accumulation, number of barren ears, and grain yield and yield components. Tillage treatments of NT and ST were arranged in a randomized complete block design with 3 replications on two adjacent …
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An adaptive image processing algorithm for field plant population analysis based on UAV imaging system
Plant population is among the most important items of agricultural data. In crop science, plant population determines canopy closure time, plant spacing, and weeds competition. For farmers, if plant population can be obtained in time, it can help in crop management decisions on replanting, …
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Agronomic management to improve corn productivity under high-yielding environments
… corn grower makes today are: 1) which hybrid to plant, 2) what population to plant, and 3) what nitrogen (N) program to use. Hybrid selection is a critical management decision made by farmers because for any given year the spread in grain yield among current commercial hybrids that year can be …
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