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1978

Plant Sciences

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Articles 181 - 208 of 208

Full-Text Articles in Life Sciences

Assessment Of Regeneration Stocking Standards Used In Alberta: A Follow-Up, I. E. Bella, J. P. Defranceschi Jan 1978

Assessment Of Regeneration Stocking Standards Used In Alberta: A Follow-Up, I. E. Bella, J. P. Defranceschi

Aspen Bibliography

No abstract provided.


Effect Of Limestone On Spring Weed Populations In A Fertilized Coastal Bermudagrass Sod, H. C. Fulcher, Lyell F. Thompson Jan 1978

Effect Of Limestone On Spring Weed Populations In A Fertilized Coastal Bermudagrass Sod, H. C. Fulcher, Lyell F. Thompson

Journal of the Arkansas Academy of Science

No abstract provided.


A Firm Stand For The Quaking Aspen, Robert F. Jones Jan 1978

A Firm Stand For The Quaking Aspen, Robert F. Jones

Aspen Bibliography

No abstract provided.


Water And Nitrogen Husbandry For Irrigated Corn In Central South Dakota, Stanley Eugene Papendick Jan 1978

Water And Nitrogen Husbandry For Irrigated Corn In Central South Dakota, Stanley Eugene Papendick

Electronic Theses and Dissertations

The purpose of this study was to evaluate the effects of supplemental water and nitrogen on corn yields. Central South Dakota was chosen as the location for this study because of its existing irrigation and the limited research data available from that part of the state. The objectives were: (1) to determine corn yield response to various water regimes, (2) to determine corn yield response to nitrogen applications, and (3) to determine corn yield response to nitrogen application methods.


The Effect Of Foliar Fertilization On Soybean Yield And Leaf Necrosis, Robert Jay Goos Jan 1978

The Effect Of Foliar Fertilization On Soybean Yield And Leaf Necrosis, Robert Jay Goos

Electronic Theses and Dissertations

The soybean (Glycine max (L.) Merrill) is a very important world crop. The seed is rich in both protein and oil, making it a valuable human food resource. Many scientists believe that there are physiological barriers preventing increased soybean yields. Any agronomic discovery that would consistently increase soybean yields would be important to world food production. One possible yield barrier in soybeans concerns the mineral nutrition of the plant during the seed-filling stages of growth. During this period of growth, translocation of N, P, K, and S from the plant foliage to the developing seed occurs, accompanied by a virtual …


Antimicrobial Activity Of Plant Extracts, Melinda J. Seid Jan 1978

Antimicrobial Activity Of Plant Extracts, Melinda J. Seid

University of the Pacific Theses and Dissertations

The purpose of this study was to investigate a possible antimicrobial activity in the following plants: Brunfelsia hopeana, Anemopsis californica, and Heimia salicifolia against Staphylococcus aureus, a Gram-positive coccus, Escherichia coli, a Gram-negative fermenter, Pseudomonas aeruginosa, a Gram-negative non-fermenter, and the yeast Candida albicans.


Five New Clovers Bring Change In Pasture Recommendations, Department Of Agriculture, Western Australia Jan 1978

Five New Clovers Bring Change In Pasture Recommendations, Department Of Agriculture, Western Australia

Journal of the Department of Agriculture, Western Australia, Series 4

The release of five new subterranean clovers should improve pastures throughout farming areas.

This article summarises the new recommendations.


Controlling Annual Ryegrass Toxicity, C H. Trotman Jan 1978

Controlling Annual Ryegrass Toxicity, C H. Trotman

Journal of the Department of Agriculture, Western Australia, Series 4

Eight years of intensive work has changed annual ryegrass toxicity from an unknown killer to a manageable problem.


Super And Stocking Rates At Kojonup After 10 Years, J W. Bowden, B. Scurr, R. Glencross, K. Longbottom Jan 1978

Super And Stocking Rates At Kojonup After 10 Years, J W. Bowden, B. Scurr, R. Glencross, K. Longbottom

Journal of the Department of Agriculture, Western Australia, Series 4

A Department of Agriculture trial on old land at Kojonup has been comparing rates of superphosphate and stocking of sheep for 10 years.


Foliar Fertilization Of Soybeans - 1977, Lloyd W. Murdock, Preeda Boon-Long, Dennis B. Egli, Kenneth L. Wells Jan 1978

Foliar Fertilization Of Soybeans - 1977, Lloyd W. Murdock, Preeda Boon-Long, Dennis B. Egli, Kenneth L. Wells

Agronomy Notes

Field investigations on the effect of foliar fertilization were continued on soybeans during 1977. Results from our 1976 studies have previously been published.

In 1976 we tested a material produced by TVA. We used the same TVA-material in 1977 and in addition, included a commercially available product (Foliantm, manufactured by Allied Chemical Corporation).


In Vitro Propagation And Tissue Culture Of Selected Monocots, Reid Harvey Graves Jan 1978

In Vitro Propagation And Tissue Culture Of Selected Monocots, Reid Harvey Graves

Dissertations, Theses, and Masters Projects

No abstract provided.


Scaled Chrysophyceae From Arkansas. Ii. The Genera Mallaomonas, Paraphysomonas And Spiniferomonas, Robert A. Andersen Jan 1978

Scaled Chrysophyceae From Arkansas. Ii. The Genera Mallaomonas, Paraphysomonas And Spiniferomonas, Robert A. Andersen

Journal of the Arkansas Academy of Science

This is the second paper of a floristic survey of the scaled Chrysophyceae of Arkansas and includes the following species: Mallomonax crassisquama, M. cratis var. Asmumdine, M. papillosa, M. caudata, M. heterospina, M. insignis, Paraph vsomonas vestita, P. imperforwa and Spiniferomonas conica


Renovation Of Nitrogenous Wastewater Via Land Application, John T. Gilmour, A. C. Peer, D. C. Regan Jan 1978

Renovation Of Nitrogenous Wastewater Via Land Application, John T. Gilmour, A. C. Peer, D. C. Regan

Journal of the Arkansas Academy of Science

Removal of inorganic and organic nitrogen from wastewater prior to recharge of ground and surface waters can be accomplished by judicious land application. This study focused attention upon the feasibility of using sprinkler irrigation as the wastewater delivery system with coastal bermudagrass (Cynodon dactylon L.,var. coastal) pasture as the wastewater sink. One site was located on a Sawyer soil near El Dorado, while the other was located on a Savannah soil near Malvern. This report is limited to the renovation of surface waters. Results revealed that nitrogen concentration in runoff water from rainfall was substantially less than nitrogen concentration of …


Fleur-De-Lis Garden Club Records - Accession 163, Garden Club Of Rock Hill, Fleur-De-Lis Jan 1978

Fleur-De-Lis Garden Club Records - Accession 163, Garden Club Of Rock Hill, Fleur-De-Lis

Manuscript Collection

The Fleur-de-Lis Garden Club of Rock Hill Records consist of constitutions, bylaws, yearbooks, correspondence, program notes, photographs, and newspaper clippings, relating to the activities and history of the women’s garden club.


The Effects Of Sulphur Dioxide On Selected Hepatics, Steven L. Gatchel Jan 1978

The Effects Of Sulphur Dioxide On Selected Hepatics, Steven L. Gatchel

Masters Theses

Extensive studies have been reported on the air pollutant sulphur dioxide (SO2), and its effects on vascular and nonvascular plants. It has been shown to interrupt normal physiology, metabolism, reproduction, and alter the plant’s morphology.

Of the cryptogams, lichens have been extensively used as biological indicators of air pollution. More recently, bryophytes have been shown to be as sensitive to contaminates as lichens, and may exhibit responses to the pollutant similar to those of vascular and nonvascular plants. The threshold sensitivity of these cryptogams is about 0.5 ppm over a 12 hour period. However no study to date …


Equations For Estimating Stand Establishment, Release, And Thinning Costs In The Lake States, Jeffrey T. Olson, Allen L. Lundgreen, Dietmar Rose Jan 1978

Equations For Estimating Stand Establishment, Release, And Thinning Costs In The Lake States, Jeffrey T. Olson, Allen L. Lundgreen, Dietmar Rose

Aspen Bibliography

No abstract provided.


Garden Club Council Of South Carolina Records - Accession 173, Garden Club Council, South Carolina Jan 1978

Garden Club Council Of South Carolina Records - Accession 173, Garden Club Council, South Carolina

Manuscript Collection

The Garden Club Council of South Carolina Records consist of yearbooks, bulletins and other publications produced by the Garden Club Council of South Carolina which was founded on April 22, 1930. The Garden Club of South Carolina was federated with the National Council of State Garden Clubs in 1932, becoming the 25th state to join the national organization.


Plants As Pumps, E A N Greenwood Jan 1978

Plants As Pumps, E A N Greenwood

Journal of the Department of Agriculture, Western Australia, Series 4

Native species vary greatly in their ability to pump ground water.

CSIRO studies are measuring water use by different plants to plan revegetation strategies.


Pasture Species Investigations, High Rainfall Area, 1978., D A. Nicholas1978 Jan 1978

Pasture Species Investigations, High Rainfall Area, 1978., D A. Nicholas1978

Experimental Summaries - Plant Research

Clover cultivar grazing trial, N. bannister.

Perennial versus annual grass grazing trial, Manjimup research station.

Pasture types and stocking rate trial, Denmark agricultural high school. Clover cultivar evaluation trials, 77BU10, 77AL22, 77D5, 77ES27, 77ES28, 77ES29, 78DE1, 78MN5, 78BR16, 78BU15.

Trikkala evaluation trial, Mt Barker research station, see also report of D. J. Gillespie.


1977 Experimental Summary - Clover Scorch, A Bokor Jan 1978

1977 Experimental Summary - Clover Scorch, A Bokor

Experimental Summaries - Plant Research

1. Clover Scorch Fungicide Demonstration - 77BU15. 2. Clover Scorch Disease Progress Curve. 3. Clover Scorch Spore Survival.


Summary Report 1977 Pasture Species Investigations - Wheatbelt, N. R. Mckeown Jan 1978

Summary Report 1977 Pasture Species Investigations - Wheatbelt, N. R. Mckeown

Experimental Summaries - Plant Research

Trials in progress - 68MO23, 70ME2, 71LG17, 71WH13, 76M5. Seasonal conditions. Grazing trials - 68MO23, 70ME2, 71LG17, 71WH13, 75N18, 76M5 - Mini-ley, Merredin. Legume species grazing management trial (West Moora) - 68M023. Comparison of production from Cyprus barrel medic and volunteer pasture (Lake Grace) - 71LG17. Comparison of production from Tornafield medic, serradella and subterranean clover (Wongan Hills Research Station) - 71WH13. Comparison of Geraldton and Northam subterranean clover (Walgoolan) - 70ME2. Early maturing subterranean clover grazing trial (Merredin Research Station) - 75M5. Small plot trials: Early maturing subterranean clovers Subterranean clover trials - southern wheatbelt - 75LG21, 75LG23, 76N16, …


Pasture Species Investigations, Wheat Belt., N R. Mckeown Jan 1978

Pasture Species Investigations, Wheat Belt., N R. Mckeown

Experimental Summaries - Plant Research

Trials in progress, 71WH13, 7OME2, 71LG17, 68MO23, 78C13, 75N18.

Seasonal conditions.

Grazing trials, 68M023, 71LG17, 71WH13.

Small plot trials, subterranean clover trials. Subterranean clover strain trials, 75LG21 and 76LG21.

76N16, 77N23, 76N17, 76N18, 78KA12, 78C13, 75M025 and 75ES23.

Legume species grazing management trial, 68M023.

Comparison of production from Cyprus, barrel medic and volume pasture, 71LG17.

Sheep. 71WH13, wheat yields.

Clover cover, 76LG5, 76ME6, 76NA6, 76LG5.

Growth and cover ratings. Composition. Subterranean clover trials, 75N18.

Strain competition and seed yields 1977. Hand sown.

Dwalganup crossbred trials. Seedling density and growth and cover rating. Medic trials


Plant Research Division, Weed Control., J R. Peirce Jan 1978

Plant Research Division, Weed Control., J R. Peirce

Experimental Summaries - Plant Research

Diuron plus MCPA mixtures for broadleaved weed control in cereals, 78Mo49B, 78Mo49A, 78No44, 78Na30.

Flowable vs powder formulation of duiron for soursob control in cereals, 78No42.

Time of spraying duiron for soursob control in cereals, 78Mo39, 7845D, 78M45B, 78No31B.


Clover Selection And Breeding Programme - Experimental Summary - 1978, C M. Francis Jan 1978

Clover Selection And Breeding Programme - Experimental Summary - 1978, C M. Francis

Experimental Summaries - Plant Research

Early maturing crossbreeds.

Improvement in T. brachycalycinum.

Genetic resources of T. subterraneum


Summary Research Results, 1978., G A. Pearce Jan 1978

Summary Research Results, 1978., G A. Pearce

Experimental Summaries - Plant Research

Herbicides for cereal planting, early planting, 78LG26, 78SG14, site history.

Herbicides for pre-emergence control of weeds in cereals, 78SG13, 78N21,78C28.

Herbicides for pre-emergence control of weeds in cereals planted by direct drilling with combine, 78C29, 78N22.


Germination, Respiration And Photosynthesis In Seeds Of Dwarf Mistletoe (Arceuthobium), Steven Wayne Gustafson Jan 1978

Germination, Respiration And Photosynthesis In Seeds Of Dwarf Mistletoe (Arceuthobium), Steven Wayne Gustafson

Dissertations and Theses

Germination, respiration, and photosynthesis in seeds of dwarf mistletoe (Arcenthobium) were studied. The effects of 1 hour soakings of seeds in aqueous solutions of 1, 2, or 3% H2O2 or 1, 2, 3, 4, or 5% Chlorox on germination of seeds were tested. Germination rates for seeds from three consecutive years (1975-1977) were obtained. Germination rates varied widely. This variance transcended subtle changes in treatment. Pretreatment of seeds with Chlorox resulted in significantly lower germination rates than those of the control. Chlorophyll concentrations were determined for seeds and aerial shoot tissue of four species. Seeds of A. …


Small Mammal Dissemination Of Dwarf Mistletoe Seeds, Daniel Eugene Lemons Jan 1978

Small Mammal Dissemination Of Dwarf Mistletoe Seeds, Daniel Eugene Lemons

Dissertations and Theses

No study has been done in the western United States concerning dispersal of dwarf mistletoe by mammals. At the outset of the study it was determined that the red squirrel, the yellow pine chipmunk (Eutamias amoenus), the northern flying squirrel, and the bushy-tailed wood rat (Neotaoma cinerea), were all potential vectors of seeds. The red squirrel was chosen as the main object of study because it is diurnal and is closely associated with ponderosa pine (Pinus ponderosa), a heavily infected species. The study was undertaken to determine whether small mammals play a significant role in transporting mistletoe seeds to uninfected …


The Ultrastructure Of Cell Division In Male Reproductive Branches Of Polysiphonia Denudata, Cynthia Louise Bosco Jan 1978

The Ultrastructure Of Cell Division In Male Reproductive Branches Of Polysiphonia Denudata, Cynthia Louise Bosco

Dissertations, Theses, and Masters Projects

No abstract provided.