Agronomy and Crop Sciences Commons^™

Lupin Logic Number 41

Lupin Logic

Content:

Kiev lupins for export

Lupin variety recommendations for 1994

Stubble grazing

Storage of lupin information

Resistance to testing?

Christmas message

193/94 Estimateed lupin equities

Lupin Logic Number 40

Lupin Logic

Contents

Albus lupin warning

Market outlook

Seed quality testing

Binder and index

Furrow seeding

Lupin Logic Number 39

Lupin Logic

Contents

Lunar landscape

- Rhizoctonia patch

- Eradu patch

- Action required

Back saving bin

Row orientation

Manganese spraying

Reminders

Correction

1992/93 Pool payments

Lupin Logic Number 38

Lupin Logic

Contents

Attitudes to dry seeding lupins

Communication corrections

Liming and lupins

- Editors note

CMV testing 1993/94

- Changes for 1993

Reminders

1992/93 Pool payments

Lupin Logic Number 37

Lupin Logic

Contents

Lupin yields

Western flower thrips

Stubble handling

Broome seed banks

Reminders

Communication channels

Lupin Logic Number 36

Lupin Logic

Contents

Paddock walk?

Virus resitant lupins

Fest lupins

Beethoven not good enough!

Lupin receivals

Kiev post plant weed control

Mailing list

Lupin Logic Number 35

Lupin Logic

Contents

Transgenic lupins

Seventh international Lupin Conference

Inoculation

Lupin Survey

Post emergence weed control

Fungicides post plant

Yield estimates

Projected 1992/93 Pool payments/tonne

Arkansas Rice Research Studies 1992, B. R. Wells

Arkansas Agricultural Experiment Station Research Series

The research reports in this publication represent one year of results; therefore, these results should not be used as a basis for longterm recommendations. Several research reports in this publication dealing with soil fertility also appear in Arkansas Soil Fertility Studies 1992, Arkansas Agricultural Experiment Station Research Series 425. This duplication is the result of the overlap in research coverage between the two series and our effort to inform Arkansas rice producers of all the research being conducted with funds from the rice check-off.

Lupin Logic Number 34

Lupin Logic

Contents

Kiev Mutant

- Soil type

- Rainfall

- Seed treatment

Time of seeding

- Seeding rate and agitation

- Weed control

- Insects

- Harvest

- Stubble grazing

- Marketing

Breeding Albus lupins - Beavan Buirchell

4.5 tonnes per hectare

Lupin outlook - John Orr

Lupin Logic Number 33

Lupin Logic

Contents

Phosphorus for lupin crops

- Using the table

Phosphate source

Lupin seeding rates

Lime and lupins

Time of planting

1992/93 Pool payments

Lupin Logic Number 32

Lupin Logic

Contents

Lupin survey

- Lupin time of planting census 1992

- Yield

- Stand density

- Concession

- Dry seeding

- Time of seeding

Tonnes or grams

Inoculant and seed treatments

Yield losses with 0.5% CMV seed

Stubble burn?

New research on early establishment of lupins

Lupin Logic Number 31

Lupin Logic

Contents

The 1992/93 harvests - Chris Maughan, Grain Pool of WA

International market report - John Orr, Grain Pool WA

Price forecast

Early planting survey

Lupin outlook meetings

Lupins for feed and food - Barry Cox, Grain Pool WA

- Stockfeed

- Human consumption

CMV testing

Seed size

Lupin Logic Number 30

Lupin Logic

Contents

Early planting survey

Seed manganese and emergence

Lupin video

Soil testing

New manganese fertiliser

Aphids susceptibility of lupin varieties

Addition Of Gel-Forming Hydrophilic Polymers To Nitrogen Fertilizer Solutions, Robert Mikkelsen, A David Behel

Robert Mikkelsen

Environmental and economic concerns are causing a search for more effective fe rtilizer products and improved methods for managing existing fertilizers. This laboratory and greenhouse study was conducted to determine if the addition of gel-forming hydrophilic polymers to N fertilizer solutions could reduce N leaching loss and increase plant uptake of N. In the first experiment, a solution of urea ammonium nitrate (UAN, 32% N) was mixed with a variety of polymers at three concentrations, band applied to a sandy soil, and leached weekly for six weeks. Nitrogen leaching losses were reduced from 0 to 45% during the first four …

Controlled-Release Fertilizers To Increase Efficiency Of Nutrient Use And Minimize Environmental Degradation - A Review, Avi Shaviv, Robert Mikkelsen

Robert Mikkelsen

Total world consumption of fertilizer N, P2 O5, and K2O in 1990 / 1991 was 78. 37. and 26 million tons per annum respectively, with a projected yearly increase of demand of about 2 to 3% . Trends in crop production (maize and wh eat) in the last four decades s how that N application rates increased about 15 times whereas its accumulation in grain increased only 3 to 4 times. At the same time nutrient recovery by crops remained relatively low (e .g. a bout 50% for N). This represents a potentially alarming situation from environmental, economic and resource …

Genetic Manipulation Of Tall Fescue, Jeffrey F. Pedersen, D. A. Sleper

Department of Agronomy and Horticulture: Faculty Publications

Genetic manipulation of tall fescue (Festuca arnndinacea Schreb.) has not been altered by the discovery of the Acremonium coenophialum (Morgan-Jones and Gams) / grass interaction. However, tall fescue breeding programs have been affected greatly. The basic methods for genetically manipulating the grass have remained static. Tall fescue is an obligate out-crossing species, and most improvements are, therefore, captured in the form of an improved population developed through some form of mass or recurrent selection. What has changed is the breeder's ability to recognize genetic differences in the grass because of the confounding effect of A. coenophialum on plant phenotype. It …

Comparison Of Sorghum And Indiangrass Chloroplast Genomes Using Rflps, Jeffrey F. Pedersen, R. D. Lee, D. J. Lee, K. P. Vogel

Department of Agronomy and Horticulture: Faculty Publications

Sorghum (Sorghum bicolor (L.) Moench) and indiangrass (Sorghastrum nutans (L.) Nash) appear closely related based on morphological and chemotaxonomic characters. Each species could potentially provide desirable traits to the other. However, traditional breeding techniques have been unsuccessful in hybridizing these two species. The objective of this study was to determine the relatedness of sorghum and indiangrass chloroplast DNA using RFLPs. Eleven sorghum lines in several cytoplasms, two indiangrass popu1ations, and a corn line were studied using 60 proberestriction enzyme combinations. Principal component analysis of the results showed sorghum to be as closely related to corn as to indiangrass, with no …

Breeding Systems For Cross-Pollinated Perennial Grasses, K. P. Vogel, Jeffrey F. Pedersen

Department of Agronomy and Horticulture: Faculty Publications

I. Introduction

II. Reproductive and Breeding Characteristics

III. Breeding Systems

A. Ecotype Selection

B. Recurrent, RestricteclPhenotypic Selection

C. Half-sib Progeny Test

D. Between and Within Family Selection

E. Recurrent Multistep Family Selection

IV. Gains From Selection

A. Time Interval per Cycle

B. Potential Gain per Cycle .

C. Potential Inbreeding per Cycle

V. Polycrossing

VI. Hybrid Cultivars

VII. Conclusions

Literature Cited

Developmental Morphology Of Tropical Sorghum And Sorghum X Sudangrass, R. B. Mitchell, K. J. Moore, Jeffrey F. Pedersen, T. A. Peterson, L. E. Moser, D. D. Redfearn

Department of Agronomy and Horticulture: Faculty Publications

Tropical sorghum and sorghum x sudangrass are known to be efficient scavengers of soil nitrogen and are important forage crops in the U.S. Nitrate contamination of groundwater due to disposal of organic wastes and excessive fertilization is a major concern in the Central Great Plains. A common disposal method of municipal wastes is application to fallow cropland. Quantification of the developmental morphology of tropical sorghum and sorghum x sudangrass is important to developing management strategies that allow multiple applications of organic wastes to optimize nitrogen removal and dry matter production. The objective of this study was to quantify the developmental …