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Articles 16171 - 16200 of 16384

Full-Text Articles in Agronomy and Crop Sciences

Effects Of Various Levels Of Krilium On Some Factors Of Soil Structure And Plant Development, General S. Stone Jun 1954

Effects Of Various Levels Of Krilium On Some Factors Of Soil Structure And Plant Development, General S. Stone

Tennessee State University Alumni Theses and Dissertations

No abstract provided.


Inheritance Studies Of A Wheat Cross To Six Races Of Covered Smut, Douglas R. Dewey May 1954

Inheritance Studies Of A Wheat Cross To Six Races Of Covered Smut, Douglas R. Dewey

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Covered smut is a fungus disease that has caused serious losses of wheat for centuries. Its origin is not known, but it was well known to early Romans as evidenced by the fact that they had a god, Robigus, whose special work was to watch over crops to "avert the mildew" (45). It is often referred to as "bunt" or "stinking smut of wheat". Throughout this paper the term "bunt" will be used to designate this disease in order to avoid confusing it with other smuts of wheat.

Bunt is worldwide in its distribution, but it is especially prevalent in …


The Effect Of Limited Moisture Supply At Various Stages Of Growth On The Development And Production Of Hybrid Corn, Ralph E. Campbell May 1954

The Effect Of Limited Moisture Supply At Various Stages Of Growth On The Development And Production Of Hybrid Corn, Ralph E. Campbell

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Corn occupies from 25 to 30 percent of the crop land harvested in the United States. In recent years the acreage devoted to corn in this country has been decidedly greater than that devoted to any other cultivated crop. In 1944 its dollar value exceeded the combined values of wheat, barley, rye, grain sorghums, and cotton.

Although South Dakota lies on the northwestern fringe of the corn belt, the corn crop is one of the most important in that state. Corn production in that area is somewhat unstable because of drought. Corn often fails to reach full maturity before the …


Control Of Dodder In Alfalfa Seed Crops, William Orvid Lee May 1954

Control Of Dodder In Alfalfa Seed Crops, William Orvid Lee

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Dodder (Cuscuta spp.) is a parasitic weed which attacks alfalfa, clovers, lespedeza, and many other species of plants. This pest is especially troublesome when these crops are grown to produce seed.

Control of dodder should increase the financial income of a seed producer in several ways. First, control should make it possible for a producer to raise seed of high quality which will command a better price; second, it should enable the producer to increase yields; and last, it should eliminate much of the cost of harvesting and cleaning his product.

Where dodder is present in seed, the grower …


Weed Control Investigations On Some Important Aquatic Plants Which Impede Flow Of Western Irrigation Water, United States Department Of The Interior, Bureau Of Reclamation Mar 1954

Weed Control Investigations On Some Important Aquatic Plants Which Impede Flow Of Western Irrigation Water, United States Department Of The Interior, Bureau Of Reclamation

Elusive Documents

During the past 50 years, the acreage of land placed under irrigation in the western United States has increased greatly to meet the growing demand for food and fiber production. To provide this water for crop production it is necessary not only for river waters to be impounded and irrigation canal distribution systems established but also for the irrigation waterways to be free of obstructing plant growths which impede the flow of water. This requires various types of weed control measures in order that originally designed carrying capacities of the waterways may be maintained. Methods involving new techniques developed mostly …


Anther Development In A Male Sterile Line Of Corn, Richard J. Vogl May 1953

Anther Development In A Male Sterile Line Of Corn, Richard J. Vogl

Bachelors’ Theses

Production of viable pollen through growth and differentiation of the anther appears to depend on the interaction of the tapetum and sporogenous tissue. Very little is known about the nature of this interaction. One way to approach this problem is to study the development of the anther in cases where no viable pollen grains are produced. Highly inbred lines of male sterile corn which are completely pollen sterile have been obtained and are available for study.


Viability Of Seed Produced By Annual Weeds And Winter Wheat Treated With Herbicides, J. Wayne Whitworth May 1953

Viability Of Seed Produced By Annual Weeds And Winter Wheat Treated With Herbicides, J. Wayne Whitworth

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Large sums of money are spent annually for herbicides to control weeds in fall sown wheat. Many of these weeds are killed by such treatments while others survive and mature seed. Viability of seeds produced by weeds injured by systemic or growth regulator type herbicides has long been a matter of great interest, much speculation, and very little research. Data on this subject are needed in order to intelligently use chemicals for weed control.


New Cereal Varieties In Australia, I Thomas, J Reeves Mar 1953

New Cereal Varieties In Australia, I Thomas, J Reeves

Journal of the Department of Agriculture, Western Australia, Series 3

During 1952 four new wheat varieties and one new flax variety were submitted and accepted for registration. Particulars of the new varieties as supplied to the Registrar are as follows:—


Wheat Variety Trials On Research Stations, 1952, I Thomas, J Reeves Mar 1953

Wheat Variety Trials On Research Stations, 1952, I Thomas, J Reeves

Journal of the Department of Agriculture, Western Australia, Series 3

To test the suitability under local conditions of the newer wheat varieties, whether bred in this State or introduced from the Eastern States, variety trials are conducted each year on five wheatbelt research stations. The results of these trials indicate the varieties most suitable to the various areas of the wheatbelt and serve as a guide to the farmer in the choice of the most suitable varieties to grow.


Analyses Of Feeding Stuffs Mar 1953

Analyses Of Feeding Stuffs

Journal of the Department of Agriculture, Western Australia, Series 3

Results of Analyses of Samples of Feeding Stuffs taken under the Feeding Stuffs Act, 1928-1951.

(Published under section 9 of the Act.)


Commercial Fertilizers For Winter Wheat In Relation To The Properties Of Nebraska Soils, R. A. Olson, H. F. Rhoades Jan 1953

Commercial Fertilizers For Winter Wheat In Relation To The Properties Of Nebraska Soils, R. A. Olson, H. F. Rhoades

Nebraska Agricultural Experiment Station: Historical Research Bulletins

It is the purpose of this bulletin to report the investigations that have been made correlating soil properties and fertilization practices with yields of winter wheat. Since the success or failure of fertilization practices is so dependent on specific soil conditions, an attempt has been made here to further characterize the major soils of the different sections of the state which are devoted to wheat production and to analyze fertilizer practices and results in relation to the soil properties determined. The data are summarized for the four sections of the state designated as southeastern, east-south-central, west-south-central and western Nebraska. These …


The Use Of The Monoploid Method For The Production Of Homozygous Diploid Lines Of Corn, Melvin Dale Rumbaugh Jan 1953

The Use Of The Monoploid Method For The Production Of Homozygous Diploid Lines Of Corn, Melvin Dale Rumbaugh

Open Access Master's Theses (through 2010)

The development of a practical method of breedings corn through the utilization of homozygous lines obtained from the doubling of monoploids will depend upon the obtaining of a reasonably high rate of monoploids from any particular stock, representing desirable gametes for corn production, and on the successful doubling of such monoploids. This study is an investigation of various aspects of these problems.

Approximately one hundred twenty thousand individual plants representing the progenies of eighteen crosses of corn were examined for monoploid sporophytes. Monoploids were found to occur at a mean frequency of 0.82 per thousand seedlings screened. Significant differences in …


Pedigree Seed Of Wheat, Oats And Barley Nov 1952

Pedigree Seed Of Wheat, Oats And Barley

Journal of the Department of Agriculture, Western Australia, Series 3

Supplies of pedigree seed wheat, oats and barley will be available for distribution from the forthcoming harvest at the Department's Research Stations. The seed will be available on a cash basis only. Varieties available this season are listed below.


Barrel Clover, F L. Shier Nov 1952

Barrel Clover, F L. Shier

Journal of the Department of Agriculture, Western Australia, Series 3

Results obtained with barrel clover in recent years at the Salmon Gums Re- Al search Station suggest that this legume will play an important part in improving the quality and quantity of the grazing on many farms in the district. It has shown its ability to survive and to build up from small sowings under average rainfall conditions and to produce a large bulk of feed in a wet year By comparison Dwalganup subterranean clover has not done nearly as well.


New Flax Variety Sep 1952

New Flax Variety

Journal of the Department of Agriculture, Western Australia, Series 3

The Minister for Agriculture (Sir Charles Latham) announced recently that a new flax variety developed in this State has been accepted for registration and released for commercial cultivation.


Inheritance Of Sterility, Flower Color, Spinelessness, Attached Pappus And Rust Resistance In Safflower, Carthamus Tinctorius, Carl E. Claassen Jul 1952

Inheritance Of Sterility, Flower Color, Spinelessness, Attached Pappus And Rust Resistance In Safflower, Carthamus Tinctorius, Carl E. Claassen

Nebraska Agricultural Experiment Station: Historical Research Bulletins

Since literature pertaining to breeding and inheritance in safflower was found to be very limited, fundamental research was instituted to determine: (A) a method for making controlled crosses, (B) the amount of natural crossing that occurs, (C) the association of oil content of seed with other seed and plant characteristics, and (D) the mode of inheritance of sterility, flower color, spinelessness, attached pappus and rust resistance. Results on natural and controlled crossing in safflower and the association of oil content in seed with other plant and seed characteristics have been reported. It is the purpose of this bulletin to report …


Wheat Crop Competitions, I Thomas, H G. Cariss Jul 1952

Wheat Crop Competitions, I Thomas, H G. Cariss

Journal of the Department of Agriculture, Western Australia, Series 3

The last issue of the Journal gave a review of the results of the 50-acre wheat crop competitions sponsored by the W.A. Flour Millowners' Association in 1948/49, 1949/50 and 1950/51, together with the championship awards for 1951/52 In this issue are set out the results for the individual zones in the 1951/52 competition, together with the judges' reports and details of each competitor's cultural operations.


New Cereal Varieties In Australia, I Thomas, J Reeves May 1952

New Cereal Varieties In Australia, I Thomas, J Reeves

Journal of the Department of Agriculture, Western Australia, Series 3

In 1927 a conference of the State Ministers of Agriculture resolved that to avoid X duplication, the names of new cereal varieties be circulated among the States and subsequently confirmed at a meeting of Ministers. Particulars of new varieties as submitted to the Registrar are as follows—


Wheat Crop Competitions, I Thomas, H G. Cariss May 1952

Wheat Crop Competitions, I Thomas, H G. Cariss

Journal of the Department of Agriculture, Western Australia, Series 3

For many years prior to the last war, 50-acre crop competitions were sponsored and conducted by the Royal Agricultural Society and judged by officers of the Department of Agriculture. These competitions always proved successful and without doubt contributed in no small way to the development of the cereal-growing areas, particularly as far as wheat farming is concerned. The conducting of these crop competitions lapsed during the war but, in 1946 a new series, sponsored by the W.A. Flour Millowners' Association, was inaugurated and conducted under the auspices of the Royal Agricultural Society with the field judging again being carried out …


Potato-Harvesting Machines May 1952

Potato-Harvesting Machines

Journal of the Department of Agriculture, Western Australia, Series 3

Less than 15% of Australian potato-growers own mechanical diggers stated the Director General of Agriculture (Mr. Frank W. Bulcock) in replying to inquiries addressed to him by the West Australian Minister for Agriculture (Sir Charles Latham).

[Article not present in contents page but present in index and in text]


Fertilization And Improvement Of Native Subirrigated Meadows In Nebraska, P. Ehlers, G. Viehmeyer, R. Ramig, E. M. Brouse Apr 1952

Fertilization And Improvement Of Native Subirrigated Meadows In Nebraska, P. Ehlers, G. Viehmeyer, R. Ramig, E. M. Brouse

Nebraska Agricultural Experiment Station: Historical Circulars

It is the purpose of this circular to summarize the 1948-51 results of fertilizer applications upon subirrigated native meadows. It is upon these lands that the cattleman depends to a large extent for winter feed.


Drill Spacing And Rate Of Seeding, I Thomas, H G. Carris Mar 1952

Drill Spacing And Rate Of Seeding, I Thomas, H G. Carris

Journal of the Department of Agriculture, Western Australia, Series 3

During the war, when superphosphate was in exceptionally short supply,a wheatbelt farmer experimented with a method of sowing a crop in which he had blocked each alternate drill run and in effect halved the rates of seed and super used on each acre. He expressed himself satisfied with the results and has since continued to plant the major portion of his crop in this manner.


The Composition Of The Dwalganup Strain Of Subterranean Clover, A B. Beck Mar 1952

The Composition Of The Dwalganup Strain Of Subterranean Clover, A B. Beck

Journal of the Department of Agriculture, Western Australia, Series 3

Subterranean clover is now the major pasture species in Western Australia and according to Elliott (1948) nearly 90 per cent, of the sown pastures of this State have a subterranean-clover base or were originally sown with this species. In spite of its great economic importance, no data have been published showing the chemical composition of the clover growing in this State. In order to fill this gap in our knowledge, series of samples of the Dwalganup strain were collected from three localities. These have been analysed by the Government Chemical Laboratories and the results are presented in this paper.


Elephant Grass, H G. Elliott, L C. Snook Mar 1952

Elephant Grass, H G. Elliott, L C. Snook

Journal of the Department of Agriculture, Western Australia, Series 3

Elephant Grass, sometimes known as Napier's Fodder, is a hardy, palatable and nutritious plant which under good conditions will give heavy yields. When once established it will remain as a permanent stand so long as it receives good treatment. It grows well in many parts of Western Australia and up to date appears to be free from attack by pests and diseases.

* (Revised from Leaflet No. 600, by H. G. Elliott)


Tobacco Field Day, J A. Mallett Mar 1952

Tobacco Field Day, J A. Mallett

Journal of the Department of Agriculture, Western Australia, Series 3

Undaunted by grey clouds and misty rain, about 75 people interested in tobacco culture attended a field day at the Tobacco Research Station, Manjimup, on February 15. Fortunately the threatened downpour failed to materialise and the visitors were able to enjoy to the fullest extent an interesting and highly instructive series of demonstrations and lecturettes.

*Secondary title: Successful event at Manjimup


Effect Of Different Ionic Ratios Of Nutrients On The Growth Response Of Young Cotton Plants, Freeman W. Snyder Jan 1952

Effect Of Different Ionic Ratios Of Nutrients On The Growth Response Of Young Cotton Plants, Freeman W. Snyder

Journal of the Arkansas Academy of Science

No abstract provided.


Breeding Cereal Crops For The Control Of Disease, H. R. Rosen Jan 1952

Breeding Cereal Crops For The Control Of Disease, H. R. Rosen

Journal of the Arkansas Academy of Science

No abstract provided.


Ua66/5/1 Yearbook, Wku Cherry Country Life Club Jan 1952

Ua66/5/1 Yearbook, Wku Cherry Country Life Club

Student Organizations

Yearbook created by WKU Cherry Country Life Club. Includes the following:

  • Legumes for Kentuck, C.L. Taylor
  • Little Used Opportunity, C.A. Loudermilk
  • The Importance of Records on Dairy Farm, A.O. Davis
  • Thoughts of the Day
  • Activities of the Club, Joseph Durbin
  • Club Officers
  • Names & Addresses of Graduates
  • Farm Bull - Humor


Some Relationships Of Potassium To Lime-Induced Chlorosis, Wilford H. Robinson May 1951

Some Relationships Of Potassium To Lime-Induced Chlorosis, Wilford H. Robinson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Chlorosis, the yellowing of plant leaves, results from reduced synthesis of chlorophyll. It is caused by a deficiency or an unbalance of essential nutrient elements. The amount and pattern of yellowing varies with the cause and severity of the disturbance. Chlorosis results in reduced vigor of the affected plants and a corresponding loss in quantity and quality of the product grown. In severe cases chlorosis may lead to the eventual death of the plant.


The Yield And Thiamine, Riboflavin, And Niacin Content Of Alfalfa Hay As Related To Fertilizer Treatment Of Soil, Rasik L. Pathak May 1951

The Yield And Thiamine, Riboflavin, And Niacin Content Of Alfalfa Hay As Related To Fertilizer Treatment Of Soil, Rasik L. Pathak

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Alfalfa has long been recognised as an outstanding hay plant in terms of both yield and feeding value. It is high in digestible proteins minerals, and vitamins. Because of its long life. it can be economlcally produced. It is of exceptlonal value in maintalning soil fertility by helping to control erosion, by improving the physical condition of the soil, and by accumulating large amounts of nitrogen.