Studies of fruit shape in apples: a survey of factors influencing the development of 'typiness' of the cultivar Red Delicious

1976 ◽  
Vol 16 (81) ◽  
pp. 592 ◽  
Author(s):  
WJ Greenhalgh ◽  
GL Godley

Studies were made on the effects of inherited factors, (scions and rootstocks) and field factors, (districts and climates) on the 'typiness' of Red Delicious apples produced in fruit growing districts of the eastern and western coasts of Australia. 'Typey' fruit is that which has pronounced calyx lobes and which attracts premium prices at market. Richared, Royal Red and Starkrimson cultivars were far more 'typey' than the common Red Delicious, whereas Hi-Early and Royden Red were inferior in this respect. Rootstocks had little effect on 'typiness'. The districts of Orange and Batlow in New South Wales produced the most 'typey' fruit. The extent to which 'typiness' was developed in the fruit was related to mean air temperature in the period of seven days following full bloom.

1806 ◽  
Vol 96 ◽  
pp. 239-266

A fore-knowledge of the wind and weather is an object so very interesting to all classes of men, and the changes in the mercurial barometer affording the means which appear most conducive to it, a system that should with certainty explain the connection between the variations of the mercury and those in the atmosphere under all circumstances, becomes greatly desirable; to seamen, more especially, whose safety and success depend so much upon being duly prepared for changes of wind, and the approaching storm, it would be an acquisition of the first importance: in a more extended view, I may say, that the patriot and the philanthropist must join with the philosopher and the mariner in desiring its comple­tion. So long and widely-extended a course of observation, however, seems requisite to form even a basis for it, that a complete system is rather the object of anxious hope than of reasonable expectation. Much has been done towards it, but so much appears to remain, that any addition to the common stock, however small, or though devoid of philosophical accuracy, I have thought would be received by the learned with candour. With this prepossession, I venture to submit to them some observations upon the movement and state of the mercury upon the coasts of New Holland and New South Wales, the Terra Australis, or Australia, of the earlier charts.


1997 ◽  
Vol 48 (3) ◽  
pp. 235 ◽  
Author(s):  
Dean R. Jerry ◽  
David J. Woodland

Genetic data were collected from eight allopatric populations of the common freshwater catfish, Tandanus tandanus. Catfish sampled from the New South Wales (NSW) mid-northern coastal rivers of the Bellinger, Macleay, Hastings and Manning exhibited fixed allelic differences from T. tandanus from the type locality (Namoi River) at four enzymatic loci (GPI-1*, EST*, UMB-1* and UMB-2*), suggesting that, collectively, catfish from these four river systems constitute an undescribed species of Tandanus. Catfish from the northern coastal rivers of NSW (Tweed, Richmond and Clarence) displayed a complex pattern of population structure that was not fully resolved by the present study. More work is needed on the complex assemblage of populations of eel-tailed catfish in the eastern coastal drainages of Australia.


1982 ◽  
Vol 30 (2) ◽  
pp. 199 ◽  
Author(s):  
RA Farrow

Unrealized natality and mortalities at successive development stages were measured during synchronized breeding by populations of the Australian plague locust. Studies were made over a 3-y period, covering nine generations, on small plots situated in pastures derived originally from savannah woodland in central western New South Wales. Variations in natality and mortalities were influenced more by variation in soil moisture, primarily through its effect on pasture conditions, than by the effects of natural enemies; these variations were closely correlated with seasonal rainfall. Unidentified losses, independent of known variables, were recorded in the hopper stage and were highest in the hatchling. Such losses invariably exceeded 60% even under the most favourable conditions encountered in the field during the study period. The quantitative relationships established in this study between the plague locust and its natural enemies and other environmental factors suggest that prospects for the biological control of this pest by either native or introduced species are poor.


1989 ◽  
Vol 21 (2) ◽  
pp. 141-145
Author(s):  
A. G. Bernard

The increasing popularity in the use of spa pools during the 1970's and 1980's and the accompanying incidents of folliculitis and ear infections caused by Pseudomonas aeruginosa associated with spa-pool use has necessitated the development of bacteriological and chemical guidelines for spa-pool water quality. The New South Wales (N.S.W.) Department of Health introduced a bacteriological standard for swimming pools and spa-pools in 1981 based on the findings of a series of surveys aimed at identifying the principal factors influencing the bacteriological quality of spa waters. Four surveys are summarised in this paper. The major findings described are the tenfold higher recovery of P. aeruginosa from spa-pools than from outdoor pools; the need for at least 2.0 milligrams per litre (mg/L) free chlorine residual in order to achieve reliable satisfactory water quality in spas compared with a requirement of 1.0mg/L to achieve the same quality in outdoor pools; the need to maintain pH below 8.0 in order to ensure efficient chlorine disinfection; the apparent inability of bromochlorodimethylhydantoin to adequately disinfect spas during heavy bather load periods; and the success of the Health Department's spa-pool operator education program which resulted in a 30% reduction in the incidence of bacteriologically unsatisfactory spa-pool waters in N.S.W. between 1980 and 1986.


1990 ◽  
Vol 6 (3) ◽  
pp. 174-181 ◽  
Author(s):  
Yvonne Larsson

This paper focuses on teacher attitudes to educational provisions for gifted and talented children in two countries. A questionnaire was distributed to 100 teachers in Sydney, New South Wales and to 100 teachers in Essex, England. Both groups represented a range of primary and secondary schools. Teachers had between 5 and 20 years experience and most were aged between 30 and 40 years. The common factor was acceptance of provisions within the comprehensive framework of education but rejection of any provisions that might be interpreted as elitist. It was also considered that there should be pre-service and in-service training in teaching methods for gifted education for all teachers so that the individual talents of children can be accommodated according to their needs within the comprehensive system.


Elem Sci Anth ◽  
2020 ◽  
Vol 8 ◽  
Author(s):  
Dylan Stinton ◽  
Larissa Schneider ◽  
Sara Beavis ◽  
Janelle Stevenson ◽  
William A. Maher ◽  
...  

Mercury (Hg) contamination is an environmental concern as a by-product of legacy mining in Australia. Here we investigate the spatial and temporal distribution of Hg in the Molonglo River system in New South Wales, Australia, and assess the physical and chemical factors influencing that distribution. Mercury concentrations in sediment cores were measured in conjunction with 210Pb and 137Cs dating to establish historical contamination. This was done at the source mine site of Captains Flat, New South Wales, and the system’s sink in Lake Burley Griffin, Australian Capital Territory. Additionally, surficial sediment Hg concentrations along the Molonglo River were analyzed to determine the spatial distribution of Hg. Analytical results showed the primary physical and chemical factors influencing Hg dispersion to be distance, total organic matter, and the presence of iron oxides and oxyhydroxides. The highest Hg concentrations were near the mine site at Captains Flat and decreased significantly with distance. Sediment core analyses in both Captains Flat and the lake showed reductions in Hg concentrations toward surficial sediment layers. It is suggested government-funded rehabilitation programs are playing a part in reducing the release of metal contamination.


1965 ◽  
Vol 5 (19) ◽  
pp. 487 ◽  
Author(s):  
AC Taylor

Three surveys in southern New South Wales assessed the importance of a number of agronomic factors on grain protein content. Grain from clover ley areas had an average of 1.3 per cent more protein than grain from crops without a clover ley background. Multiple regression analyses of the 1961 and 1963 data from clover ley crops showed that each year of ley was associated with an average increase of 0.14 per cent protein. Each week's delay of sowing beyond April 1, was associated with an average increase of 0.17 per cent grain protein. Amount of superphosphate applied to ley, intensity of cropping, and length of fallow had no effect or inconsistent effects on grain protein. With crops after natural leys only sowing time had a consistent effect on grain protein. The regression was the same as for crops with a clover ley background.


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