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Showing 1 to 20 of 76 for “"tiller"”.
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Natural genetic variation and gene expression patterns underlying lateral shoot (tiller) development in barley (Hordeum vulgare L)
… develop. In barley, lateral branches called tillers contribute directly to grain yield and define shoot architecture. Two studies were completed to gain a better understanding of the genetic control of tiller development. One focused on characterizing natural phenotypic and genetic variation …
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Yield and Tiller Development of a Sudangrass and a Sorghum-Sudangrass Hybrid as Influenced by Clipping Treatments and Growth Stage at Harvest
Made available in DSpace on 2014-12-10T17:12:37Z (GMT). No. of bitstreams: 1 6812154.pdf: 2850379 bytes, checksum: 8ae81d91a9eff3d149b14e0e04324038 (MD5) Previous issue date: 1968
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Conservation tillage machinery for broccoli production
… varied included pre-planting irrigation amount, tiller depth, tiller RPM, and tractor speed. The analysis revealed that the FOR2 machine produced commercially acceptable stands of broccoli with 77% germination. It was also determined that the percentage of aggregates in the seedbed greater than …
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Biological and Agronomic Aspects of Two Insect Predators of Switchgrass
… internodes and in rhizomes, causing premature tiller and rhizome loss. The switchgrass midge (Chilophaga virgati Gagné: Diptera: Cecidomyiidae) feeds above the last internode of the tiller, causing seed yield and biomass loss. There were two objectives for this study: (1) to determine genetic …
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Effects of three clipping managements on growth and production of a Kentucky bluegrass-clover sward
… rate (LER), leaf appearance rate (LAR), and tiller density were observed. The sward was clipped to three heights, 2.5, 5.1, and 7.6 cm, from a recovery growth of 13 to 15 cm. Nitrogen was applied in split applications twice a year at three rates (0, 80, and 160 kg N ha-1). Herbage …
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Management of summer grazed alfalfa
… bloom). Forage yields, leaf area index (LAI), tiller numbers, crude protein (CP), and in vitro dry matter digestibility ( IVDMD) generally declined during grazing. Neutral detergent fiber (NDF), lignin, and cellulose content generally increased on all grazing systems. Forage at the end of …
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Canada Thistle Management Systems for Sustainable and Organic Farms
… (CDA) indicated that the traits of unmowed tiller number, regrowth tiller number, and regrowth biomass were the most significant in discriminating between accessions. The accessions clustered into three subgroups. Three multi-stemmed accessions with an ability to regrow clustered away from …
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Examining Hessian fly (Mayetiola destructor) management concepts and quantifying the physiological impact of hessian fly feeding on post-vernalization selected cultivars of winter wheat in Kansas
… resistant under infestation levels of 1 fly/tiller but significant seed weight losses occured under infestations of 3 flies/tiller. In the field, Armour did not provide protection post-vernalization, with plants containing similar numbers of flaxseeds (pupae) as the susceptible cultivar, …
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Growth analysis and regrowth potential of three cool season grasses in spring
… medium temperature regime the highest weight per tiller. The percent tiller regrowth was adversely affected by high temperature regime. In dark growth only a weak relationship existed between the soluble carbohydrates in the stubble and weight per tiller in regrowth. Better regrowth was observed …
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Characterizing Oxadiazon Resistance and Improving Postemergence Control Programs for Goosegrass (Eleusine indica) in Bermudagrass (Cynodon spp.)
… from four- to five-leaf to greater than eight-tiller stage, goosegrass control and biomass reduction decreased among all of the herbicides except topramezone and MSMA plus metribuzin at 4 and 8 WAT. These data suggest that one application of sulfentrazone is only effective for seedling stage …
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Molecular Beam Epitaxy: A Thermomechanical Treatment
… us to recover the classical results for Asaro-Tiller-Grinfeld instability, as well as more recent achievements predicting compositional segregation. Finally, we investigate the response of the instability towards a new chemical parameter (ratio of chemical energies of the species), and show …
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Vegetative tillering plasticity modulates agronomical optimum plant density in winter wheat
… L.), this concept becomes complex due to the tillering trait and its phenotypic variance due to the interaction between genotype and environment (G × E). In this scenario, phenotypic plasticity is an insightful crop ecology perspective to understand G × E. Our objectives were to explore the …
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Quantitative Trait Loci Associated with Waterlogging Tolerance in a Soft Red Winter Wheat Mapping Population
… root biomass, root length, chlorophyll content, tiller number, elongation, and plant height pre and post-treatment under stressed and non-stressed conditions.</p> <p>In both the greenhouse and the field experiments, biomass traits, chlorophyll content ere significantly reduced by waterlogging …
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Effect of replacing nitrogen fertiliser with gibberellic acid on response of perennial ryegrass and white clover pasture : A thesis submitted in partial fulfilment of the requirements for the Degree of Doctor of Philosophy at Lincoln University
… (DM) production, botancial composition, ryegrass tiller size and density and forage nutritive value. To test these results, several treatment regimens were compared in a grazing trial with dairy cows which explored milk production and N excretion. Using a randomised block design with ten treatment …
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Evaluation of Prairie Cordgrass (Spartina pectinat, link) for Biomass Production on Marginal Land
… and Illinois in 2010, (2) yield production, tiller density, tiller weight, morphological traits such as biomass distribution in leaf sheath, and internode with measures of length and weight under four N rates (0, 56, 112, and 168 kg ha-1 of N), and below-ground material to a depth of 25 cm in …
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Phenology, canopy development, biomass and grain yield of annual canarygrass (Phalaris canariensis L.)
… with FLN, it was negatively correlated with tillering cessation and its duration was shortened with late SDs. In wheat and oat, the start of stem elongation was relatively less affected by SD and tillering cessation was more related to the % of intercepted radiation by the canopy. In …
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Identification and generation of new germplasms in barley with increased tolerance to waterlogging
… physiological parameters such as plant height, tiller number, chlorophyll content and root architecture were assessed in order to select varieties that are more tolerant to waterlogging
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Nitrogen Management in No-till Winter Wheat Production Systems
… Optimum N rates were regressed against tiller density at GS 25, and wheat tissue N content and SPAD chlorophyll meter readings at GS 30, to determine their effectiveness as predictors of the optimum N rate at GS 25 or GS 30. Tiller density was an effective predictor of optimum GS 25 N …
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