Plant Biology Commons^™

Joint Fire Science Program – Lake Mead National Recreation Area: Revegetating Burned Arid Lands: Identifying Successful Native Species Using Trait And Competition Analysis, Quarterly Progress Report, October 1, 2007 To December 31, 2007, Margaret N. Rees

Fire Science

The task agreement was awarded to UNLV on October 1, 2007. This report covers the period October 1, 2007 to December 31, 2007. The following activities have been conducted toward meeting or exceeding deliverables in the statement of work: hiring and project start and experimental set-up

An Assessment Of Methods For Sampling Carabid Beetles (Coleptera: Carabidae) In A Montane Rain Forest, B. A. Nyundo, J. G. Yarro

Tanzania Journal of Science

Pitfall trapping is the traditional method for sampling carabid beetles and other grounddwelling invertebrates. Tests were carried out in the Udzungwa Mountains National Park between March 1999 and July 2000. Results indicated that pitfall traps were less efficient compared to manual searching methods, both in terms of relative abundance and species richness of carabid beetles. The results are discussed in the context of biodiversity inventories in theEastern Arc Mountains.

Impact Of Small Scale Gold Mining On Soils Of The Wetland Forests In East Usambara, Tanzania, C. Kweyunga, R. B. M. Rbm Senzota

Tanzania Journal of Science

Soil pits in disturbed and natural wetland forests of East Usambara were excavated and soil profile samples collected and analysed for physical and chemical properties. Their physical and chemical characteristics were found to be sharply different from those of the surrounding hills. Differences included lack of A Horizon, water saturation, presence of very high organic matter, very low pH and hence very poor in basic cations, and low microbial activity. Nutrient recycling, especially nitrogen and phosphorus, tended to shift from mineralization to immobilization. Effects of soil disturbance on both physical and chemical characteristics of the soils were also very vivid. …

Enhancing The Ability Of Panicum Virgatum To Survive Flooding And Its Effects On Soil Activity When Used For Lakeshore Stabilization, Lee Edwards

All Dissertations

Reservoirs in upstate South Carolina are subject to erosion and vegetation has been placed to help stabilize banks, but soils are nutrient-poor and have high bulk densities. Panicum virgatum L. (switchgrass) has been planted in several sites, and it is hypothesized that over time, changes in microbial activity and soil quality will occur in response to the planting. As vegetated sites aged, acid phosphomonoesterase, nitrate reductase, and dehydrogenase activity increased. Low values of nitrogen fixation and substrate-induced respiration were measured at all sites with no statistical differences between sites. Fatty acids indicative of Gram negative bacteria were found in vegetated …

Maestra2: A Model For Simulating Spatially Explicit Carbon Dioxide Exchange Rates Among Species' Water Stress Response, Robert Reynolds

All Theses

MAESTRA2, a species specific mechanistic model, was parameterized to estimate water use, carbon accumulation and organ specific respiration of five deciduous tree species under both irrigated and water stressed conditions. The model was validated using temporally and spatially explicit ecophysiological data to account for seasonal changes in species physiology. The following tree species: Acer rubrum L. 'Summer Red' (A. rubrum), Betula nigra (B. nigra), Paulownia elongata (P. elongata), Quercus nuttallii (Q. nuttallii), and Quercus phellos (Q. phellos) were intensively measured and organ specific destructively harvested samples were compared to modeled estimates of carbon accumulation. Among species, we observed variability in …

The Jeweled Armor Of Tillandsia—Multifaceted Or Elongated Trichomes Provide Photoprotection, Simon Pierce

Aliso: A Journal of Systematic and Floristic Botany

Foliar trichomes of gray-leaved Tillandsioideae (Bromeliaceae) are highly reflective, suggesting a role in protecting the leaf against direct sunlight in exposed niches. The performance of photosystem II, as denoted by the chlorophyll fluorescence characteristic F_v /F_m , was determined for seven Tillandsia species and Vriesea barclayana that were exposed to excessive light, with trichomes either present or removed. Additionally, trichome structure and interaction with light was recorded using extended depth-of-field photomicrography, and reflectance quantified using a novel photographic technique. Trichomes of mesomorphic Type IV life forms (T. cryptantha, T. cyanea) and of the intermediate life …

Towards A Comprehensive Survey Of C3 And C4 Photosynthetic Pathways In Cyperaceae, Jeremy J. Bruhl, Karen L. Wilson

Aliso: A Journal of Systematic and Floristic Botany

Members of the family Cyperaceae were surveyed by original observation and from the literature to assess the distribution of C₃ and C₄ photosynthetic pathways in the family. All 107 genera were included in the current sample, with 91 genera assessed as consistently C₃ and 11 genera as C₄. The genera Abildgaardia, Cyperus, Eleocharis, Fimbristylis, and Rhynchospora are variable for this trait. Of the total number (1474) of specific (1406) and infraspecific (68) taxa sampled, 938 taxa (63%) are C₃, 527 taxa (36%) are C₄, and nine species …

Detecting Shifts In Soil Microbial Community Structure And Function Post Landspread Of Manure Or Biosolids Containing Antimicrobial Chemicals, Kelly Lehnert, Sharon A. Clay, Susan Gibson, Volker Brozel

Agronomy, Horticulture and Plant Science Faculty Publications

Soil microbial diversity and community interaction play an indispensable role in 2,4-dichorophenoxyacetic acid (2,4-D) herbicide degradation. The addition of manure or municipal waste biosolids through landspreading may alter soil community structure and function if these materials contain antimicrobial chemicals like chlortetracycline (CTC), administered in livestock feed to promote animal growth and health or tetracycline (TET) utilized in human health. In this study, soil applied with manure collected from pigs fed standard CTC levels was compared to soil containing manure from control pigs fed no CTC, and a comparison of soil applied with biosolids containing TET or without TET to distinguish …

Wheat Streak Mosaic Virus Lacking Helper Component-Proteinase Is Competent To Produce Disease Synergism In Double Infections With Maize Chlorotic Mottle Virus, Drake C. Stenger, Brock A. Young, Feng Qu, Thomas Jack Morris, Roy French

Department of Plant Pathology: Faculty Publications

The tritimovirus Wheat streak mosaic virus (WSMV) and the machlomovirus Maize chlorotic mottle virus (MCMV) each cause systemic chlorosis in infected maize plants. Infection of maize with both viruses produces corn lethal necrosis disease (CLND). Here, we report that complete deletion of the WSMV helper component-proteinase (HC-Pro) coding region had no effect on induction of CLND symptoms following coinoculation of maize with WSMV and MCMV. We further demonstrated that elevation of virus titers in double infections, relative to single infections, also was independent of WSMV HC-Pro. Thus, unlike potyvirus HC-Pro, WSMV HC-Pro was dispensable for disease synergism. Because disease synergism …

Australian Temperate Strawberry Breeding Program (Albany Western Australia) Screening Of Advance And New Selections For Albany Western Australia - 2006/2007, Shane Trainer, Dennis Phillips, Hal

Horticulture research reports

Fourteen intermediate day neutral selections from the Australian temperate breeding program were compared in a June trial planting on a commercial property in the Albany region. Intermediate selections were derived from crosses made between 1999 and 2002. Three advanced 'short day' selections were compared for yield, both as trial plots (10 plants) and as large plot demonstrations of up to 500 plants. Accompanying these selections, six named day neutral, three short day and four Queensland cultivars of different runner origins were compared. Camarosa, Selva and Diamante were included as commercial controls.

Day neutral selections 02-083-24 and 02-83-311 were potentially superior …

Comparative Chloroplast Genomics: Analyses Including New Sequences From The Angiosperms Nuphar Advena And Ranunculus Macranthus, Linda A. Raubeson, Rhiannon Peery, Timothy W. Chumley, Chris Dziubek, H. Matthew Fourcade, Jeffrey L. Boore, Robert K. Jansen

All Faculty Scholarship for the College of the Sciences

Background

The number of completely sequenced plastid genomes available is growing rapidly. This array of sequences presents new opportunities to perform comparative analyses. In comparative studies, it is often useful to compare across wide phylogenetic spans and, within angiosperms, to include representatives from basally diverging lineages such as the genomes reported here: Nuphar advena (from a basal-most lineage) and Ranunculus macranthus (a basal eudicot). We report these two new plastid genome sequences and make comparisons (within angiosperms, seed plants, or all photosynthetic lineages) to evaluate features such as the status of ycf15 and ycf68 as protein coding genes, the distribution …

Pseudomonas Avr And Hop Proteins, Their Encoding Nucleic Acids, And Use Thereof, James R. Alfano, Alan Collmer, Samuel W. Cartinhour, David J. Schneider

Department of Plant Pathology: Faculty Publications

One aspect of the present invention relates to isolated nucleic acid molecules encoding avirulence proteins or polypeptides of Pseudomonas syringae pv. syringae DC 3000, or nucleic acid moleculues which are complementary thereto. Expression vectors, host cells, and transgenic plants which include the DNA molecules of the present invention are also disclosed. Another aspect relates to the isolated proteins or polypeptides and compositions containing the same. The various nucleic acid molecules and proteins of the present invention can be used to impart disease resistance to a plant, make a plant hypersusceptible to colonization by nonpathogenic bacteria, modify a metabolic pathway in …

Atamasco Lily, Zephyranthes Atamasca, W. John Hayden

Biology Faculty Publications

Simple and pure, Atamasco lilies were among the first of many beautiful wildflowers to be noticed by the Jamestown colonists as they explored the tidewater region of southeastern Virginia. A perennial herb that grows from a subterranean bulb, the leaves are glossy green, linear, flat to somewhat concave, up to one half inch wide and approximately one foot in length. The species name, atamasca, is attributed to Tapehanek words meaning under grass, in reference to the location of the bulb under grass-like leaves. Overall the plant is rather grass-like. Flowers are erect to slightly inclined. As in many lilies, …

The Development Of A Gc/Ms Protocol For The Analysis Of Polysaccharides In Echinacea Purpurea, Michaela Knapp

Undergraduate Theses and Capstone Projects

Echinacea purpurea is an herbal supplement used to reduce symptoms of common colds and flu-like illnesses. As of right now, it is not well understood what chemical components in the plant are immunologically active. The four main potentially immunologically active chemical components in E. purpurea are caffeic acid derivatives, alkamides, polyacetylenes, and polysaccharides. In this investigation, a protocol was developed in an attempt to identify polysaccharides present in Puritan’s Pride E. purpurea (aerial) “non-irradiated” herbal supplement First, an estimate of the crude total polysaccharide content in Puritan’s Pride and in a ChromaDex certified botanical standard (E. purpurea -powdered root) was …

Stability Of Eukaryotic Elongation Factor One Alpha Protein In The Cell, Jennifer Watry

Honors Theses

Eukaryotic Elongation Factor One Alpha (eEF1A) is an abundant protein found in every cell of every organism and is involved in functions concerning protein synthesis and degradation, the cytoskeleton, and signaling. How these functions are regulated is not yet understood for this protein. Regulation of the protein may be controlled by transcription of the genes encoding the protein or the stability and modification of the protein. The goal of this project was to determine the stability of eEf1A proteins in Arabidopsis thaliana. Protein stability was determined by treating tissues with cycloheximide, an inhibitor of protein synthesis. Gel electrophoresis and …

The Banksia Production Manual, Department Of Agriculture And Food, Western Australia

Bulletins 4000 -

There has long been a need for a Banksia Production Manual. The benefit of such a manual is the ability to bring together the material written and published in a range of other publications and reports.

As far as possible the latest information has been reviewed and incorporated. Some of these areas have a limited set of information available and are accordingly brief. We have tried to incorporate grower information where possible to ensure that what is discussed has a practical grounding. While regulations and information was correct at the time of publication (April 2007), it is recommended that people …

Zephyr Lilies: Simple Beauty Belies Complex Biology, W. John Hayden

Biology Faculty Publications

It is often thus, the best in art appears effortless; the most compelling science, once understood, seems obvious. But talk at length with any artist or scientist and you will learn that what appears simple is actually the culmination of a great deal of work. Zephyr, or Jamestown, lilies are like that, too. These seemingly simple flowers are merely the elegant end product of some very complex underlying biology, the details of which are imperfectly understood.

Phytoremediation: Investigating A Means Of Removing Pahs From The Floodplain Of The Chattanooga Creek, Eric Matthew Cohen

Honors Theses

As a result of uncontrolled dumping of coal-tar for much of the past century,polycyclic aromatic hydrocarbons (PAHs) are abundant in the floodplain of Chattanooga Creek. The area is deemed a Superfund site and a danger to public health. Phytoremediation has shown to be a cost-effective, ecologically friendly method to r move toxicants from the environment. The present study concerns two candidate plants for phytoremediation Festuca arundinacea (tall fescue) and Cucurbita pepo ssp. pepo (zucchini). Each plant was grown for 28 days in pyrene (a representative PAH) amended soi l. Shoot heights were recorded every 3 to 4 days to test …

Mid-Spring Burning Reduces Spotted Knapweed And Increases Native Grasses During A Michigan Experimental Grassland Establishment, Neil W. Macdonald, Brian T. Scull, Scott R. Abella

Peer Reviewed Publications

The definitive version is available at www.blackwell-synergy.com Infestations of the exotic perennial Spotted knapweed (Centaurea maculosa Lam.) hinder the restoration and management of native ecosystems on droughty, infertile sites throughout the Midwestern United States. We studied the effects of annual burning on knapweed persistence on degraded, knapweed-infested gravel-mine spoils in western Michigan. Our experiment included 48, 4-m² plots seeded to native warm-season grasses in 1999 using a factorial arrangement of initial herbicide and fertility treatments. Beginning in 2003, we incorporated fire as an additional factor and burned half of the plots in late April or May for three …

A Pseudomonas Syringae Pv. Tomato Dc3000 Mutant Lacking The Type Iii Effector Hopq1-1 Is Able To Cause Disease In The Model Plant Nicotiana Benthamiana, Chia-Fong Wei, Brian H. Kvitko, Rena Shimizu, Emerson Crabill, James R. Alfano, Nai-Chun Lin, Gregory B. Martin, Hsiou-Chen Huang, Alan Collmer

Center for Plant Science Innovation: Faculty Publications

The model pathogen Pseudomonas syringae pv. tomato DC3000 causes bacterial speck in tomato and Arabidopsis, but Nicotiana benthamiana, an important model plant, is considered to be a non-host. Strain DC3000 injects approximately 28 effector proteins into plant cells via the type III secretion system (T3SS). These proteins were individually delivered into N. benthamiana leaf cells via T3SS-proficient Pseudomonas fluorescens, and eight, including HopQ1-1, showed some capacity to cause cell death in this test. Four gene clusters encoding 13 effectors were deleted from DC3000: cluster II (hopH1, hopC1), IV (hopD1, hopQ1-1, hopR1), IX (hopAA1-2, hopV1, hopAO1, hopG1), and native plasmid pDC3000A …

Crop Updates 2007 - Cereals, Rob Loughman, R. Lance, I. Barclay, G. Crosbie, S. Harasymow, W. Lambe, Chengdao Li, R. Mclean, C. Moore, K. Stefanova, A. Tarr, R. Wilson, Matu Peipi, Matt Whiting, Christine M. Zaicou-Kunesch, Shahajahan Miyan, Brenda Shackley, Len J. Wade, Lindsay W. Bell, Felicity Byrne (Nee Flugge), Mike A. Ewing, Blakely Paynter, Andrea Hills, Raj Malik, Kelly Winfield, Harmohinder Dhammu, Vince Lambert, Chris Roberts, Jeremy Lemon, Geoff J. Thomas, Ian Hartley, Andrew Taylor, Manisha Shankar, John Majewski, Vivien Vanstone, Brenda A. Coutts, Monica Kehoe, Roger Jones, Geoffrey Dwyer, Belinda Welsh, Cuiping Wang, Linda Price

Crop Updates

This session covers twenty six papers from different authors:

CEREAL BREEDING

1. Strategies for aligning producer and market imperatives in cereal breeding in Western Australia, R. Loughman, R. Lance, I. Barclay, G. Crosbie, S. Harasymow, W. Lambe, C. Li, R. McLean, C. Moore, K. Stefanova, A. Tarr and R. Wilson, Department of Agriculture and Food

2. LongReach plant breeders wheat variety trials – 2006, Matu Peipi and Matt Whiting, LongReach Plant Breeders

WHEAT AGRONOMY

3. Response of wheat varieties to sowing time in the northern agricultural region in 2006, Christine Zaicou, Department of Agriculture and Food

4. Response …

Crop Updates 2007 - Lupins, Pulses And Oilseeds, Mark Seymour, Jacinta Falconer, Ian Pritchard, Rodger Beermier, Wayne Parker, Martin Harries, Kedar Adhikari, Geoff Thomas, Peter White, Bevan Burichell, Mike Baker, Bob French, Jo Walker, Laurie Maiolo, Leigh Smith, Mark Sweetingham, Lorne Mills, Harmohinder Dhammu, Ben Tang, Qifu Ma, Zed Rengel, Bill Bowden, Ross Brennan, Reg Lunt, Tim Hilder, Tim Maling, A. Diggle, D. Thackray, R. A.C. Jones, K. H.M. Siddique, Vijay Jayasena, Leonardus Kardono, Ken Quail, Ranil Coorey, Hannah Williams, Don Elani Jayawardena, Kerry Regan, Rod Hunter, Tanveer Khan, Jenny Garlinge, Heather Clarke, W. Macleod, S. Morgan, A. Harris, Alan Meldrum, Helen Bowers, A. Bakr, Phillip Chambers, Chris Veitch, Tony Leonforte, Pam Burgess, Leanne Young, Brenda Coutts, Donna O'Keefe, Rhonda Pearce, Monica Kehoe, Terri Jasper, Tim Pope, Michael Materne, Ping Si, Mike Walsh, H. H. T. Phan, S. R. Ellwood, J. Hane, A. Williams, R. Ford, S. Thomas, R. Oliver, Katie Robinson, Mohammad Amjad, Graham Walton, Pat Fels, Andy Sutherland, Imma Farre, Michael Robertson, Senthold Asseng3, Ravjit Khangura, Moin Salam

Crop Updates

This session covers forty eight papers from different authors:

2006 REGIONAL ROUNDUP

1. South east agricultural region, Mark Seymour¹ and Jacinta Falconer², ¹Department of Agriculture and Food, ²Cooperative Bulk Handling Group

2. Central agricultural region, Ian Pritchard, Department of Agriculture and Food

3. Great Southern and Lakes region, Rodger Beermier, Department of Agriculture and Food

4. Northern agricultural region, Wayne Parker and Martin Harries, Department of Agriculture and Food

LUPINS

5. Development of anthracnose resistant and early flowering albus lupins (Lupinus albus L) in Western Australia, Kedar Adhikari and Geoff Thomas, Department of …

Crop Updates 2007 - Weeds, Alexandra Douglas, Peter Newman, Sally Peltzer, Abul Hashem, Aik Cheam, Siew Lee, Natalie Maguire, Michael Walsh, Dan Cornally, Matt Willis, Glen Riethmuller, Shahab Pathan, Michael Renton, Art Diggle, Mechelle Owen, Stephen Powles, Roberto Busi, Robert Barrett-Lennard, Andrew Storrie, David Minkey, Craig A. Ruchs, Peter Boutsalis, Catherine Borger, Nerys Wilkins, Julie Roche, Martin Harries, John Peirce, Brad Rayner, John Moore, Ray Fulwood, Chris Roberts, Paul Matson, Bob French, Laurie Maiolo, Lorne Mills, Harmohinder Dhammu, Ben Tan, Vince Lambert, Chris Roberts, Vanessa Stewart

Crop Updates

This session covers thirty two papers from different authors:

1. ACKNOWLEDGEMENTS, Alexandra Douglas CONVENOR – WEEDS DEPARTMENT OF AGRICULTURE AND FOOD

WILD RADISH MANAGEMENT

2. Decimate a wild radish seed bank in five years, Peter Newman, Sally Peltzer, Abul Hashem and Aik Cheam, Department of Agriculture and Food

3. High level of seed-set control in wild radish is achievable, Aik Cheam and Siew Lee,Department of Agriculture and Food

4. Wild radish: Best management practice, Aik Cheam and Siew Lee, Department of Agriculture and Food

5. Control of phenoxy resistant wild radish through the combined effects of wheat …

Crop Updates 2007 - Farming Systems, David Jeffries, A. Loi, B. J. Nutt, Clinton K. Revell Dr, Yvette Oliver, Michael Robertson, Bill Bowden, Kit Leake, Ashley Bonser, Ian Maling, Bindi Isbister, Garren Knell, Alison Slade, David Stephens, Michael Meuleners, David Beard, Nicolyn Short, Rob Grima, Ingrid Richardson, Ruhi Ferdowsian, Geoff Bee, David Evans, Bob Gilkes, Senthold Asseng, Jim Dixon, Felicity Byrne, Mike Ewing, Dennis Van Gool, Louise Barton, Ralf Kiese, David Gatter, Klaus Butterbach-Bahl, Renee Buck, Christoph Hinz, Daniel Murphy, Cameron Weeks, Meredith Fairbanks, John Peirce, Brad Rayner, Sandy White, Paul Damon, Qifa Ma, Zed Rengel, Ed Barrett-Lennard, Meir Altman, Tracey M. Gianatti, Lindsay Bell, Ben Webb, Caroline Peek, Paul Sanford, Paul Blackwell, Glen Riethmuller, Darshan Sharma, Mike Collins, Frank D'Emden, David Hall, G. P. Manango, D. L. Steverson, Vanessa Stewart, Julie Roche, Peter Rutherford, Imma Farre, Ian Foster, Stephen Charles, Frances Hoyle, N. Milton, M. Osman, L. K. Abbott, W. R. Cookson, S. Darmawanto, Rob Sands, David Mccarthy, Paul Carmody, J. Russell, J. Eyres, G. Fosbery, A. Roe, Phil Nichols, Andrew Bathgate, Anne Wilkins

Crop Updates

This session covers forty papers from different authors:

1. Quality Assurance and industry stewardship, David Jeffries, Better Farm IQ Manager, Cooperative Bulk Handling

2. Sothis: Trifolium dasyurum (Eastern Star clover), A. Loi, B.J. Nutt and C.K. Revell, Department of Agriculture and Food

3. Poor performing patches of the paddock – to ameliorate or live with low yield? Yvette Oliver¹, Michael Robertson¹, Bill Bowden², Kit Leake³and Ashley Bonser³, CSIRO Sustainable Ecosystems¹, Department of Food and Agriculture², Kellerberrin Farmer³

4. What evidence is there that …

Are Hawkmoths The Mysterious Pollinators Of The Jamestown Lily?, W. John Hayden

Biology Faculty Publications

“Hawkmoth flowers are easy to predict but difficult to document,” noted botanist Verne Grant in his comprehensive review of hawkmoth pollination systems in North America (Botanical Gazette 144: 439-449. 1983). Grant included Jamestown (atamasco) lilies (among other zephyr lily species) as examples of plants that are probably hawkmoth- pollinated, but for which the actual pollination mechanism remains undocumented.

A Strong Constitutive Ethylene-Response Phenotype Conferred On Arabidopsis Plants Containing Null Mutations In The Ethylene Receptors Etr1 And Ers1, Xiang Qu, Brenda P. Hall, Zhiyong Gao, G. Eric Schaller

Dartmouth Scholarship

The ethylene receptor family of Arabidopsis consists of five members, falling into two subfamilies. Subfamily 1 is composed of ETR1 and ERS1, and subfamily 2 is composed of ETR2, ERS2, and EIN4. Although mutations have been isolated in the genes encoding all five family members, the only previous insertion allele of ERS1 (ers1-2) is a partial loss-of-function mutation based on our analysis. The purpose of this study was to determine the extent of signaling mediated by subfamily-1 ethylene receptors through isolation and characterization of null mutations.

Association Of Ergot Alkaloids With Conidiation In Aspergillus Fumigatus, Christine M. Coyle, Shawn C. Kenaley, William R. Rittenour, Daniel G. Panaccione

Department of Plant Pathology: Faculty Publications

Ergot alkaloids are mycotoxins that affect the nervous and reproductive systems of exposed individuals through interactions with monoamine receptors. They have been studied more widely in ergot fungi and grass endophytes but also are found in Aspergillus fumigatus, an opportunistic human pathogen that reproduces and disseminates exclusively through conidia. The ergot alkaloids festuclavine and fumigaclavines A, B and C are present in or on conidia of A. fumigatus. Cultures of the fungus that are free of conidia are difficult to obtain, obscuring comparisons of conidia versus vegetative hyphae as sources of the ergot alkaloids. To create conidiation-deficient strains of A. …

A Geographically Constrained Molecular Phylogeny Of Panamanian Aechmea Species (Bromeliaceae, Subfamily Bromelioideae), Keri Renee Maher

Theses Digitization Project

This study lends strong support to the idea that members of Bromeliaceae have undergone a recent adaptive radiation, and therefore show that, at least in part, diversity in the tropics is due to a fast speciation rate and that the tropics can be a "cradle" for new diversification and exploitation of varying ecological niches through the diversification of ecophysiological traits within a lineage.

Enhancing Fertiliser Use Efficiency For Transplanted Vegetables, Dennis Phillips, Aileen Reid, Gavin D'Adhemar

Horticulture research reports

Horticulture Australia (HAL) Project No. VG04018.

Project VG 04018 ‘Enhancing fertiliser use efficiency for transplanted vegetables’ showed that spraying highly concentrated solutions containing nitrogen over newly transplanted vegetable seedlings for between 14 and 21 days after planting can increase marketable yields by as much as 300% compared to other methods of fertiliser application. Crops that this method has been successfully tested on in this study by the W.A. Department of Agriculture and Food include iceberg and Cos lettuce, broccoli, cauliflower, Chinese cabbage (wombok), celery and cabbage.

The research was conducted on virgin sandy soils of the Swan Coastal Plain near …

Assessment Of Genetic Diversity In The Usda And Cip-Fao International Nursery Collections Of Quinoa (Chenopodium Quinoa Willd.) Using Microsatellite Markers [Abstract], S. A. Christensen, Donald B. Pratt, C. Pratt, P. T. Nelson, M. R. Stevens, Eric N. Jellen, C. E. Coleman, D. J. Fairbanks, A. Bonifacio, Peter J. Maughan

Faculty Publications

No abstract provided.