CSIRO Publishing
0004-9417
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Các bài báo tiêu biểu
Concept of General and Specific Combining Ability in Relation to Diallel Crossing SystemsA detailed examination of the concept of combining ability in relation to diallel crossing systems is made. Eight different analyses aro presented. 'l'hese result from a consideration of four different diallel crossing systems together wit.h two alternative assumptions with regard to the sampling nature of tho experimental material. A numerical example is given.
Tập 9 Số 4 - Trang 463 - 1956
A Re-Examination of the Relative Turgidity Technique for Estimating Water Deficits in LeavesThe relative turgidity technique consists in comparing the initial and turgid water contents, on a percentage basis, of disks punched from leaves, the turgid water content being obtained by floating the disks on water.
Tập 15 Số 3 - Trang 413 - 1962
Storage of Two-Cell Mouse Embryos in VitroThere are reports of the storage at O-lOoC of fertilized rabbit (Chang 1947, 1948; Hafez 1965) and sheep ova (Averill 1956; Kardymowicz et al. 1963; Kardy-mowicz, Kardymowicz, and Grochowalski 1966; Kardymowicz, Kardymowicz, and Kremer 1966). However, the storage of fertilized mouse ova in vitro does not appear to have been studied. Wales (1969) found that glycolysis at 37�C by cultured bl... ...
Tập 22 Số 4 - Trang 1065 - 1969
Studies on The Greening of Dark-Grown Bean Plants II. Development of Photochemical ActivityA study of the photochemical activity of plastids isolated from etiolated bean leaves which had been illuminated for increasing periods was undertaken. Proplastids isolated from etiolated leaves were inactive in the Hill reaction. Photochemical ferricyanide reduction was obtained with plastids isolated from etiolated leaves which had been illuminated for 6 hr. The reduction increased to a ... ...
Tập 17 Số 1 - Trang 93 - 1964
Liver Pathology in Mice in Poisoning by the Blue-Green Alga Microcystis AeruginosaThe bloom-forming M. acruginosa contains a peptide hepatotoxin. Injection of algal extracts or of solutions of purified toxin (5 x LDlOo approx.) into mice was shown to cause an increase in liver weight of 63 � 11 % within 45 min due to an increase in blood content of the organ. At the same time aspartate amino transferase and lactate dehydrogenase increased 50-fold and 20-fold respectivel... ...
Tập 34 Số 2 - Trang 179 - 1981
The Early Stages of Grain Development in Wheat: Response to Light and Temperature in a Single VarietyFor wheat plants (cv. Gabo) grown under natural daylight at a temperature of 21/16�C, increase in dry weight of the stem exceeded that of the ear for the first 10 days following anthesis. Higher temperatures (27/22�C) resulted in a greater rate of grain development, with a corresponding increase in the rate of cell division in the endosperm tissue, and a shortening of the stem growth perio... ...
Tập 23 Số 4 - Trang 765 - 1970
Simulation of Genetic Systems by Automatic Digital Computers II. Effects of Linkage on Rates of Advance Under SelectionRates of progress of single populations under selection pressure have been simulated by an automatic electronic computer. Varying intensities of selection and tightness of linkage are compared, showing that linkage produces no qualitative effect on the rates of advance at values greater than 0�005, i.e. 0�5 per cent. recombination.
Tập 10 Số 4 - Trang 492 - 1957
The Evolutionary Significance of Sugar Accumulation in SaccharumSugar levels in the various species of the Saccharum complex suggest an evolutionary increase in sugar content. Under suitable ecological conditions, survival through sucker growth may be dependent on rapid mobilization of stored carbohydrate. Selection pressure for sucrose storage would then oocur if sucrose was more readily remobilized than other storage carbohydrates. It is suggested th... ...
Tập 16 Số 4 - Trang 737 - 1963
Oestrogen Sulfotransferase: Molecular Cloning and Sequencing of cDNA for the Bovine Placental EnzymeThe female sex hormone, oestrogen, plays a central role in breast cell proliferation in both the normal and malignant state. It controls transcription from several genes, including that for the progesterone receptor, and in endometrial tissue, via this receptor, it controls the gene for the enzyme oestrogen sulfotransferase. This enzyme may control the level of the oestrogen receptor by su... ...
Tập 41 Số 4 - Trang 507 - 1988
Isozyme Studies on the Origin and Evolution of Puccinia Graminis F. SP. Tritici in AustraliaIsozyme phenotypes for eight enzyme systems were used to assess the origins and evolution of P. graminis f. sp. tritici (the wheat stem rust pathogen) in Australia. The results obtained by this approach agreed with pathways postulated on the basis of virulence studies, confirming the suggestion that most of the major changes in the wheat stem rust pathogen flora of Australia have resulted ... ...
Tập 35 Số 2 - Trang 231 - 1982