L'Agriculture pratique des pays chauds.

5, pt. 1, 1905

L'Agriculture pratique des pays chauds.

7, pt. 1, 1907

Determination of kinetics of phosphorus mineralization in soils under oxidizing conditions /

Mode of access: Internet.

Adsorption of energy-related organic pollutants : a literature review /

Mode of access: Internet.

Sorption properties of sediments and energy-related pollutants /

Mode of access: Internet.

University of Illinois weed control research report.

Issued 1987- in parts; part II has title: Illinois weed science research report.

Report of the Joint committee on the European corn borer,

Mimeographed.

Horticulture & Crop Science Department series.

Description based on: 229, published in 1997; title from cover.

Laboratory data and descriptions of soils of the Benchmark Soils Project /

"TRBSP-05-11/79(1 M)"--v.2

New York precipitation and temperature summary.

Description based on: Month of Dec. 1973.

Maize genetics cooperation news letter.

Mode of access: Internet.

Pasture and range research techniques /

Mode of access: Internet.

Principal soil association areas of Illinois.

Mimeographed.

Storage protein mobilization and thiol protease up-regulation by solid matrix priming in loblolly pine (Pinus taeda) seed embryos

Experiments were conducted to investigate physiological mechanisms of solid matrix priming (SMP) on germination enhancement of loblolly pine (Pinus taeda) seeds. During SMP, osmotic potential in the embryo decreased by 0.65 MPa, concentration of crystalloid proteins decreased to 62% and concentrations of buffer soluble proteins and free amino acids increased by 22% and by 166%, respectively. Observations under an electron microscope demonstrated protein bodies in the embryo were mobilized. Inhibitor analysis indicated thiol protease was the dominant enzyme among endopiptidases to degrade the reserved proteins. A fragment of thiol protease was cloned from the primed seed embryos and it has high identities to those thiol proteases responsive to water stress. RNA get blot analysis showed a 1.5 kb thiol protease gene was up-regulated by SMP. Treatment with E64, a thiol protease inhibitor, negated SMP effects on germination performance, water potentials and protein profiles. Based on the experimental results, reserve protein mobilization induced by SMP in the embryo before radicle emergence might be one of the mechanisms to enhance germination in loblolly pine seeds.

Intra-specific variation for host plant use in Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae): Implications for management

The polyphagous moth Helicoverpa armigera (Hubner) is one of the world's most important agricultural pests. A number of existing approaches and future designs for management of H. armigera rely on the assumption that moths do not exhibit either genetically and/or non-genetically based variation for host plant utilization. We review recent empirical evidence demonstrating that both these forms of variation influence host plant use in this moth. The significance of this variation in H. armigera in relation to current and future pest management strategies is examined. We provide recommendations on future research needs and directions for sustainable management of H. armigera, under a framework that includes consideration of intra.-specific variation for host use relevant in this and other similar pest species. (C) 2004 Elsevier Ltd. All rights reserved.