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Full-Text Articles in Life Sciences

Winter Wheat Cultivar Performance In An International Array Of Environments, J. E. Stroike, V. A. Johnson Oct 1972

Winter Wheat Cultivar Performance In An International Array Of Environments, J. E. Stroike, V. A. Johnson

Nebraska Agricultural Experiment Station: Historical Research Bulletins

The International Winter Wheat Performance Nursery organized in 1968 by the Nebraska Agricultural Experiment Station in cooperation with the Agricultural Research Service, U.S. Department of Agriculture, under a contract with the Agency for International Development, U.S. Department of State, has presented a unique opportunity to measure the performance and stability of 28 winter wheat cultivars over an international array of environments. Computations of three parameters for yield, selected agronomic traits, and grain protein and lysine were made from nursery data recorded in 1969 and 1970.


Late Summer Establishment Of Alfalfa And Birdsfoot Trefoil As Related To Date And Method Of Seeding, D.W. Allinson Sep 1972

Late Summer Establishment Of Alfalfa And Birdsfoot Trefoil As Related To Date And Method Of Seeding, D.W. Allinson

Storrs Agricultural Experiment Station

No abstract provided.


Results Of The Second International Winter Wheat Performance Nursery, J. E. Stroike, V. A. Johnson, J. W. Schmidt, P. J. Mattern Sep 1972

Results Of The Second International Winter Wheat Performance Nursery, J. E. Stroike, V. A. Johnson, J. W. Schmidt, P. J. Mattern

Nebraska Agricultural Experiment Station: Historical Research Bulletins

The Second International Winter Wheat Performance Nursery was grown in 1970 at 38 sites in 23 countries. Four of the sites were in the southern hemisphere. Data were reported from 36 sites. The same 30 varieties evaluated in the First International Winter Wheat Performance Nursery were grown in this Second International Winter Wheat Performance Nursery. Twenty-eight varieties were winter wheats; two were spring wheats. Data on grain yield, test weight, maturity, plant height, lodging, shattering, winter survival, diseases, grain protein content and lysine content for 1970 are reported. Two-year mean data summaries also are reported.


Comparison Of Ammonium Nitrate And Urea As Nitrogen Source For Topdressing Established Grass Sods, Grant Thomas, Harold F. Miller Apr 1972

Comparison Of Ammonium Nitrate And Urea As Nitrogen Source For Topdressing Established Grass Sods, Grant Thomas, Harold F. Miller

Agronomy Notes

When urea is broadcast and not worked into the soil there is a risk of some of the nitrogen being lost to the atmosphere as ammonia. In an effort to measure the effectiveness of urea compared to ammonium nitrate as sources of nitrogen for topdressing on established grass sod, an experiment comparing these two sources at rates to supply 0, 50, 100 and 150 pounds of nitrogen per acre was conducted in 1971.


Date Of Planting Studies Of Winter Wheat And Winter Barley In Relation To Root And Crown Rot Grain Yields And Quality, C. R. Fenster, M. G. Boosalis, J. L. Weihing Apr 1972

Date Of Planting Studies Of Winter Wheat And Winter Barley In Relation To Root And Crown Rot Grain Yields And Quality, C. R. Fenster, M. G. Boosalis, J. L. Weihing

Nebraska Agricultural Experiment Station: Historical Research Bulletins

This study was undertaken to determine the nature of root and crown rot of wheat and to ascertain the proper time to plant winter wheat so as to conserve moisture, minimize root and crown rot and thereby maximize yield. Studies conducted for 15 years at several locations in western Nebraska reveal that planting date is a significant factor for higher yields, particularly in certain years.


Grian Sorghum Performance Tests - 1971, James H. Herbek, Morris J. Bitzer Feb 1972

Grian Sorghum Performance Tests - 1971, James H. Herbek, Morris J. Bitzer

Agronomy Notes

Grain sorghum varieties were evaluated at four locations (Carlisle, Daviess, Hopkins, and Todd Counties) in Kentucky in 1971.


Tall Fescue Seed Production In Kentucky, Dennis M. Tekrony, C. J. Kaiser, Warren C. Thompson, Robert C. Buckner Feb 1972

Tall Fescue Seed Production In Kentucky, Dennis M. Tekrony, C. J. Kaiser, Warren C. Thompson, Robert C. Buckner

Agronomy Notes

Producing tall fescue seed has traditionally been a profitable venture for many Kentucky farmers. It can still provide additional income if: (1) it is properly managed and fertilized and (2) it is integrated into a total farming program which in most cases includes livestock.


Long Term Rotation Trials, I C. Rowland Jan 1972

Long Term Rotation Trials, I C. Rowland

Experimental Summaries - Plant Research

LONG TERM ROTATION TRIALS The results shown are the yield of grain harvested from crops grown under various rotations of pasture ley. W56H, 66M29, 67N4, 67BA6, 68E5, 68SG5, 69GE20


Frost Injury To Cereals In W.A, M W. Perry, A. G. P. Brown Jan 1972

Frost Injury To Cereals In W.A, M W. Perry, A. G. P. Brown

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

Late spring frosts commonly reduce yields and affect the quality of grain in wheat crops, especially in the southern, eastern and north-eastern districts. The damage is usually localised on individual farms, but is sometimes widespread.

Barley, and oats to a lesser extent, are also affected. Average losses of wheat in Western Australia have been estimated at 3 to 5 per cent, per year, or about 2 million bushels on current production figures.


Effect On Bees Of Insecticides Used On Rape, A C. Kessell Jan 1972

Effect On Bees Of Insecticides Used On Rape, A C. Kessell

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

Rapeseed could provide beekeepers in Western Australia with a valuable new honey crop—hut insecticidal spraying of rape at flowering time is a potentially serious threat to most commercial beekeepers.

There are indications that insect pollination may improve rapeseed yields, so both growers and beekeepers could gain from a co-operative approach to the problem. Spraying after sundown and preventing spray drift to nearby apiaries should avoid most losses.


Physiological Regulation Of Cyclic Flowering In Flax, Aurora Salazar Hovland Jan 1972

Physiological Regulation Of Cyclic Flowering In Flax, Aurora Salazar Hovland

Electronic Theses and Dissertations

The flowering pattern of flax (Linum usitatissimum, L.) is cyclic in nature with periods of blossoming separated by periods of rest. To study the regulation of flowering cycles, four experiments were conducted. The first two dealt with nutritional aspects of cyclic flowering by imposing environmental stresses which conceivably might regulate flowering pattern nutritionally. The third and fourth experiments dealt with regulation from hormonal systems and included in vitro regulation of bud growth by growth regulators as well as characterization of endogenous hormonal systems by fluorimetry and bioassays. In the first experiment, the effects of light intensity, temperature, nitrogen and defoliation …


Biscuit Wheat In W.A, G H. Jones, J. A. Parish, H. J. Moss Jan 1972

Biscuit Wheat In W.A, G H. Jones, J. A. Parish, H. J. Moss

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

Following small scale trials in the production and evaluation of Gluclub wheat in 1970 and 1971, farmers have been asked to produce 20,000 tons of this variety for the 1972/73 season.

The background of this attempt to establish a class of soft or biscuit wheat in world markets is described in this article.


Nitrogen On Rapeseed, Department Of Agriculture, Western Australia Jan 1972

Nitrogen On Rapeseed, Department Of Agriculture, Western Australia

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

Experiments comparing the responses of wheat and rape to nitrogenous fertilisers were planted at 26 sites from Geraldton to Esperance in 1971.

In spite of hail damage and poor emergence of rape at some sites, meaningful results were obtained in 18 cases.


Some Observations And Comments On Birdsfoot Trefoil, Roy E. Sigafus, W. C. Templeton Jr., T. H. Taylor, J. W. Wyles Jan 1972

Some Observations And Comments On Birdsfoot Trefoil, Roy E. Sigafus, W. C. Templeton Jr., T. H. Taylor, J. W. Wyles

Agronomy Notes

Farmer's Bulletin No. 2191, TREFOIL PRODUCTION FOR PASTURE AND HAY, was released by the U.S. Department of Agriculture in July, 1967. This publication noted that acreages of trefoil in the U.S. increased from 770,000 in 1957 to over 2 million acres in 1967. This bulletin is an excellent guide to kinds of trefoils, to the different varieties available, and to general production practices in obtaining stands and in managing this legume. It is stated in the bulletin that birdsfoot trefoil is not recommended south of a line drawn from the Nebraska-Kansas border to the east coast, except at higher elevations. …


Pit And Scald Of Granny Smiths, Department Of Agriculture, Western Australia Jan 1972

Pit And Scald Of Granny Smiths, Department Of Agriculture, Western Australia

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

Trials investigating storage and shipping disorders of fruit, mainly apples and pears, are conducted annually in cool rooms made available to the Department by the W.A. Meat Export Works.


Part 3 Lupin Cultivar - Comparison, G H. Walton Jan 1972

Part 3 Lupin Cultivar - Comparison, G H. Walton

Experimental Summaries - Plant Research

The 1972 experimental results provide a good comparison between Unicrop and Uniharvest lupin under low rainfall conditions. While most trial results have to be examined in the knowledge of low rainfall confounded with high weed competition, some useful and practical conclusions can be drawn. The following table summarises the best yield obtained for the lupin varieties at each site. 72GE11, 72GE12, 72GE13, 72GE14, 72LG7, 72LG10, 72MO10, 72MT33, 72NO9, 72NO10, 72TS10,


Kojonup Maintenance Phosphorus And Sulphur Trial 68br7ex, J W. Bowden, B. Scurr Jan 1972

Kojonup Maintenance Phosphorus And Sulphur Trial 68br7ex, J W. Bowden, B. Scurr

Experimental Summaries - Plant Research

68BR7 Maintenance superphosphate and sulphur trial To determine the level of superphosphate to maintain near maximum plant and animal production with and without additional elemental sulphur. Experimental: There are 41 plots with 29 treatments. 12 treatments have 2 replications. Site: Very old land, whitegum and sheoak vegetation with greybrown sandy loam and some quartz grit. History: Superphosphate - 1/2bag for 40 years - 3,600 lbs (1633 kg). 600 lb (272 kg) in the last 4 years to 1967.


Glume Blotch Of Wheat, Department Of Agriculture, Western Australia Jan 1972

Glume Blotch Of Wheat, Department Of Agriculture, Western Australia

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

Glume blotch on wheat crops is seen frequently in some areas of Western Australia and was particularly severe in the West Midlands in 1971.

The disease is caused by the fungus Septoria nodorum which infects the leaves, stems and heads of the wheat plant.


Estimation Of N Availability And No3-N Movement In Soils, Raymond Charles Ward Jan 1972

Estimation Of N Availability And No3-N Movement In Soils, Raymond Charles Ward

Electronic Theses and Dissertations

Objectives of this study were: (a) to evaluate several N soil tests that are used to estimate soil N availability, and (b) to measure the distribution of inorganic N in the soil profile after an application of fertilizer N. Small grain yield response from an application of 17, 34, or 67 kg N/ha was used as the parameter of N availability. These parameters were related to 23 independent variables by use of a step wise multiple regression program. Nitrogen soil tests and climatic factors (rainfall and temperature) were the independent variables involved in the analysis. Nitrogen soil tests included were …


1972 Nitrogenous Fertilisers For Cereal Grain (Wheat, Barley) And Oil Crops (Rape), M G. Mason Jan 1972

1972 Nitrogenous Fertilisers For Cereal Grain (Wheat, Barley) And Oil Crops (Rape), M G. Mason

Experimental Summaries - Plant Research

72A1, 72A2, 72A3, 72AL1, 72AL2, 72BA1, 72BR1, 72BR2, 72E1, 72E2, 72ES1, 72GE1, 72GE2, 72JE1, 72JE2, 72KA1, 72LG1, 72LG2, 72ME1, 72ME2, 72M1, 72MO3, 72MO9, 72MT2, 72MT5, 72N1, 72N2, 72NA1, 72NA2, 72N01, 72TS1, 72TS2, 72TS4, 72WH1, 72WH2, Page 65 and 95 upside down Placement of urea on two barley varieties It was shown (Mason 1971) that Beecher Barley emergence was virtually unaffected by 112 or 336 kg urea/ha. banded with the seed, apart from a slight delay in emergence at the higher rate. However, in the 1972 season, in field trials, the number of Clipper Barley plants emerging was reduced by urea …


Summary Of Trial Results 1972 (February 1973), N. R. Mckeown Jan 1972

Summary Of Trial Results 1972 (February 1973), N. R. Mckeown

Experimental Summaries - Plant Research

1.0.0. Trials in Progress During 1972 observations were made on 16 small plot legume species trials and 11 grazing trials. In 1973 the small plot trials will be reduced to 10. This report summarizes the results from the grazing trials under the following headings:- 2.0.0. Seasonal conditions 3.0.0. Grazing experiments 3.1.0. 68MO23 - Legume grazing management trial, West Moora 3.2.0. 71LG17 - Comparison of production from Cyprus Medic and volunteer pasture 3.3.0. Comparison of production from tornafield medic,serradella and subterranean clover 3.3.1. 70ME2 - Walgoolan 3.3.2. 71WH13 - Wongan Hills 3.3.3. 69MO17 - Watheroo 3.3.4. 69LG24 - Lake Grace 3.4.0. …


Trial Results 1972 Rapeseed, Barley, Lupins, Frost, M W. Perry Jan 1972

Trial Results 1972 Rapeseed, Barley, Lupins, Frost, M W. Perry

Experimental Summaries - Plant Research

Competition of Rapeseed and Wimmera Rye Grass. Effects of Time of Planting and Cultivation in Barley. Frost Trials Time of Planting/Weed Control in Lupins EX 72BA6, 72KA3, 72MT10, 72MT17, 72WH5,


1972 Rape Variety Trials - Summary Of 1972 Field Experiments With Advisors, M. L. Poole Jan 1972

1972 Rape Variety Trials - Summary Of 1972 Field Experiments With Advisors, M. L. Poole

Experimental Summaries - Plant Research

Rape barley trials, yield ranking, flowering times, yields low erucic versus high erucic varieties, campestris versus B. napus varieties, time of planting, miscellaneous crop trials. trials lost, rape variety/time of planting trials. 72A5(1), 72A5(2), 72AL5(1), 72AL5(2), 72AL6, 72AL7, 72BA5(1), 72BA5(2), 72BR10, 72E3(1), 72E3(2), 72GE5, 72JE6, 72JE7, 72KA4, 72LG5, 72LG6, 72M2a, 72M2b, 72ME3, 72MT9(1), 72MT9(2), 72NA6, 72NA7, 72NA8, 72N02, 72N03, 72N04, 72TS7, 72WH4(1), 72WH4(2). Trials Lost; Rape variety/time of planting trials, 72BR8 72BR9 72KA5 72KA6 72JE8 72ES3(2) 72ES4 72ES5 72M04) 72M05) 72M06 72TS6 72GE4 72PE1 72C 72N 72JE6 72JE7 Other trials, 72GE44 72GE45


Part 5 Comparison Of Genetic Components In Lupin Species, G H. Walton Jan 1972

Part 5 Comparison Of Genetic Components In Lupin Species, G H. Walton

Experimental Summaries - Plant Research

Influence of genetic components on harvest index. (note the conclusions from these results are especially subject to Statistical Analysis) 1. At three sites out of the four, the acquisition of 'early' gene(s) improved the harvest index. Mount Barker was the exception to this. This was true for both the cosentini, albus and angustifolius varieties. In 1971,when the spring was wetter than 1972,the plant maturity was much less of an influenceupon the harvest index. 2. The alkaloid content of the plant in L. angustifolius doesn°t seem to have a consistent influence upon the harvest index. This was the same experience irn …


1972 - Part 3 - Lupin Cultivar Comparison, G H. Walton Jan 1972

1972 - Part 3 - Lupin Cultivar Comparison, G H. Walton

Experimental Summaries - Plant Research

The 1972 experimental results provide a good comparison between Unicrop and Uniharvest lupin under low rainfall conditions. While most trial results have to be examined in the knowledge of low rainfall confounded with high weed competition, some useful and practical conclusions can be drawn. Trials - 72MO10, 72MT33, 72GE11, 72GE12, 72GE13, 72GE14, 72LG7, 72LG10, 72NO9, 72NO10, 72TS10. Other grain legume variety trials which were not harvestable for lupin varieties - 72AL10, 72ES9, 72LG8, 72LG9, 72NA10, 72NA11, 72TS11, 72WH9,


Kimberley Research Station Review Of Progress, 1968-71, Department Of Agriculture, Western Australia Jan 1972

Kimberley Research Station Review Of Progress, 1968-71, Department Of Agriculture, Western Australia

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

The potential for harnessing northern rivers flowing to the Gulf of Carpentaria and the Timor Sea was realised many years ago.

These rivers together are estimated to carry about three times the water transported annually over the Murray drainage system and the South Eastern slopes, which comprise the closely settled agricultural areas of South Eastern Australia.

The Kimberley Research Station was established in 1946 to investigate the potential for irrigated agriculture in the Ord River valley. This is a review of the Station's sixth progress report which is being published as Department of Agriculture Bulletin No. 3861.


Diseases Of Rape, A Bokor Jan 1972

Diseases Of Rape, A Bokor

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

A few serious outbreaks of disease occurred in rape crops in Western Australia in 1971 but future crop losses will be much greater where routine disease prevention is not practised.

Control measures for all these diseases are based on efficient destruction of crop residues by grazing and burning and by rotations which allow time for decay of below ground residues.


Insignia Lowers Wheat Quality, J A. Parish, H. M. Fisher Jan 1972

Insignia Lowers Wheat Quality, J A. Parish, H. M. Fisher

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

Farmers in Western Australia have been advised not to plant Insignia wheat because it has poor grain quality. Many farmers want to know why Insignia is considered poor quality and what harm it could do. This article answers these questions and suggests alternative, better quality wheats for all present situations.


Symptoms Of Nutrient Deficiencies In Rape, M G. Mason, J. W. Gertrell Jan 1972

Symptoms Of Nutrient Deficiencies In Rape, M G. Mason, J. W. Gertrell

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

Rape is a relatively new crop in Western Australia and this investigation was undertaken to produce visual symptoms of nutrient deficiencies so that they could be recorded and used for diagnosing deficiencies in the field. The appearance of mineral deficiency symptoms can vary considerably with growing conditions, so that symptoms produced in a glasshouse are only a guide to the probable symptoms in the field.


Smooth-Stemmed Turnip, B J. Quinlivan, A. C. Devitt Jan 1972

Smooth-Stemmed Turnip, B J. Quinlivan, A. C. Devitt

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

Cruciferous weeds are common throughout the agricultural areas of Western Australia. They include wild turnip, wild mustard, wild radish, charlock and raphistrum weed or short fruited turnip.

Another one—tentatively named smooth-stemmed turnip—has recently been sighted. Its exact weed potential will not be known for some years, but it is likely to spread through the south coastal districts where the climate and sandy surfaced soils favour its growth.