A COMPARISON OF SEED TESTING METHODS IN RELATION TO THE STEM-BREAK- AND BROWNING DISEASE OF FLAX, CAUSED BY POLYSPORA LINI LAFF.

1951 ◽  
Vol 29 (2) ◽  
pp. 138-142 ◽  
Author(s):  
V. R. Wallen ◽  
A. J. Skolko

A comparison of the Ulster, New Zealand, and Ottawa methods of seed examination for the presence of Polyspora lini Laff., the cause of stem-break and browning disease of flax, showed great variation in the percentage of infection obtained, depending upon the method used. The Ulster method, in which the seed is not treated before it is plated, does not differentiate deep-seated infection from superficial infection of the seed, but has proved satisfactory in actual practice with seed samples that are not contaminated seriously by saprophytic fungi. The New Zealand method, by which surface contamination is supposedly removed by washing the seed in running water, has not been found reliable. The Ottawa method, by which the seed is surface sterilized before it is plated, does not indicate the degree of superficial infection, but does give the percentage of deep-seated infection, and hence it indicates the suitability of the seed for planting purposes if the seed is treated with a fungicide. It is suggested that a centrifuge test combined with the Ottawa plating method would provide a better index of the health condition of flax seed as far as disease caused by. P. lini is concerned.

2021 ◽  
Author(s):  
◽  
Lisa Thompson

<p>Provision for adolescent mental health in New Zealand is in its infancy. CRHS-City is the first Ministry of Education funded initiative that addresses adolescent mental health and transition back to school in New Zealand. This thesis examines the experiences of students and their families attending CRHS-City and how they were supported to transition back to school or further education. This research is important as it focuses on a growing need and documents Central Regional Health School’s attempt to address it. The methodological approach was a multiple case study underpinned by a constructivist paradigm. A qualitative approach was appropriate for this study as the research wanted to capture the impact attending CRHS-City had on a specific group of students and their transition back to a regular school or further education. Three students and their families identified they would be willing to be interviewed as part of this study. Eight overarching themes emerged from the research. Participants described positive outcomes from their experience of attending CRHS-City. This study has found being at CRHS-City helped the participants explore different ways of managing their mental health condition and gain confidence in their abilities to do so, which in turn supported the overall goal of a return to school or further education. However this was not an easy process for either the students or their parents. The findings from this research identified recommendations specific to CRHS-City and for the education sector in general to support students who have a mental health condition continue with their education goals. Support for the student’s family and the regular school is an essential part of this process. Research into effective interventions within mainstream schools to support students who have mental health needs is seen as a logical next step.</p>


1980 ◽  
Vol 1 ◽  
pp. 103-109
Author(s):  
D.J. Scott

An account is given of the place of seed testing in New Zealand agriculture. The functions of the Government Seed Testing Station are outlined, including sections on the role of testing in the Government seed certification scheme, testing seed for export, seed importation. noxious plants, Rhizobium testing, surveys and research. Also discussed are the procedures and aspects of seed quality testing relevant to New Zealand pasture seeds, including sampling, purity, germination, seed health. seed vigour, cultivar and tolerances. Key words: Seed testing, New Zealand, noxious plants, Rhizobium.


Author(s):  
Basave Gowda ◽  
A. Krishna Naik ◽  
Rakesh . ◽  
C. Mathad ◽  
B.S. Ganiger ◽  
...  

An experiment was conducted during 2014-2015 to standardize the seed testing method in Kabuli chickpea MNK-1 by number of seeds and number of germination papers. Among the different testing methods 25 seeds per replication recorded highest seed germination percentage (91.58%), less number of fresh un-germinated seeds (1.91%), abnormal seedlings (4.00%), diseased seeds (2.33%) and significantly higher seedling vigour index-I and II (2215 and 6863), among the number of germination papers used 2+1 as in between paper method(Bottom 2 and one paper above) recorded significantly higher germination percentage (92.12%), less number of fresh un-germinated seeds (1.41%), abnormal seedlings (3.66%), diseased seeds (2.33%) and significantly higher seedling vigour index-I and II (2463 and 6900), when compared to other. Irrespective of number of germination paper and seeds used however, interaction of 25 seeds per replication and 2+1 between paper method of seed germination testing showed significantly germination percentage (96.50%), less number of fresh un-germinated seeds (0.00%), abnormal seedlings (1.00%), diseased seeds (1.00%) and significantly higher seedling vigour index-I and II (2844 and 7792) followed by 50 seeds per replication. 


2021 ◽  
Author(s):  
◽  
Lisa Thompson

<p>Provision for adolescent mental health in New Zealand is in its infancy. CRHS-City is the first Ministry of Education funded initiative that addresses adolescent mental health and transition back to school in New Zealand. This thesis examines the experiences of students and their families attending CRHS-City and how they were supported to transition back to school or further education. This research is important as it focuses on a growing need and documents Central Regional Health School’s attempt to address it. The methodological approach was a multiple case study underpinned by a constructivist paradigm. A qualitative approach was appropriate for this study as the research wanted to capture the impact attending CRHS-City had on a specific group of students and their transition back to a regular school or further education. Three students and their families identified they would be willing to be interviewed as part of this study. Eight overarching themes emerged from the research. Participants described positive outcomes from their experience of attending CRHS-City. This study has found being at CRHS-City helped the participants explore different ways of managing their mental health condition and gain confidence in their abilities to do so, which in turn supported the overall goal of a return to school or further education. However this was not an easy process for either the students or their parents. The findings from this research identified recommendations specific to CRHS-City and for the education sector in general to support students who have a mental health condition continue with their education goals. Support for the student’s family and the regular school is an essential part of this process. Research into effective interventions within mainstream schools to support students who have mental health needs is seen as a logical next step.</p>


2003 ◽  
Vol 9 (1) ◽  
pp. 26-39
Author(s):  
Elinor Seville ◽  
Fiona M. Alpass ◽  
Nancy Pachana

As the proportion of the population over age 65 in many countries continues to grow, it becomes increasingly important for health care professionals to have well-grounded knowledge of ageing processes and positive attitudes towards their older clients. In New Zealand the third most limiting chronic health condition for older adults is hearing impairment. In this study, audiologists and hearing therapists in New Zealand were asked to complete measures of knowledge and attitudes towards older adults as well as a vignette measuring treatment options. While it was hypothesised that, due to audiologists' higher overall levels of academic qualifications gained, audiologists would have more knowledge and therefore better attitudes towards older adults, there was no difference between the groups' knowledge levels. Further analyses suggested that attitudes held were in part a function of gender and possibly education, with less educated females having more positive attitudes. While all participants had positive attitudes these did not always result in the most appropriate treatment. It was concluded that a lack of specific gerontological knowledge rather than negative attitudes resulted in less appropriate treatment recommendations for older adults.


2020 ◽  
Vol 30 (Supplement_5) ◽  
Author(s):  
B Wamamili ◽  
M Wallace-Bell ◽  
A Richardson ◽  
R C Grace ◽  
P Coope

Abstract Background People with mental illness have higher smoking prevalence, and vaping is generally higher among smokers than non-smokers. However, data on associations of mental illness with smoking and vaping in New Zealand (NZ) is lacking. This study examines associations of history of mental illness (HMI) with smoking and vaping in NZ university students. Methods Data came from a March 2018 national cross-sectional study. χ2 tests compared patterns of smoking and vaping in students with and without HMI. An HMI was defined as a diagnosis, or treatment for depression, anxiety or nervous disorder, or other mental health condition in the previous 12 months. Logistic regression model assessed the association of an HMI with smoking and vaping. Results 1622 students were included: 82.7% aged &lt;25 years, 17.3% ≥25 years; 38.6% male, 61.4% female; 7.8% Māori, 92.2% non-Māori; 18.1% reported an HMI. Of respondents, 50.5% (95% CI 48.0-53.0) reported ever, 10.0% (8.6-11.6) current and 5.0% (4.0-6.2) daily smoking. Students with HMI were significantly more likely to report ever (p&lt;.001), current (p=.008) and daily smoking (p=.014) than those without HMI. 36.7% (34.3-39.1) of students reported ever, 6.7% (5.5-8.0) current and 2.5% (1.8-3.4) daily vaping. Students with HMI were significantly more likely to report ever (p&lt;.001), current (p=.002) and daily vaping (p=.022) than those without HMI. The full model containing all predictors was statistically significant, χ2 (5, N = 1621) = 34.843, p &lt; .001. Female gender: OR 0.55 (0.41-0.73); current smoking: OR 1.76 (1.19-2.60), and current vaping: OR 2.07 (1.32-3.25) were significantly associated with an HMI. Conclusions There were strong associations between an HMI and smoking and vaping (controlling for age, gender, ethnicity). These findings extend earlier work on the relationship between smoking and mental illness by demonstrating similar associations in university students, and generate new information on HMI and vaping. Key messages Significant numbers of students may have an HMI. Students with an HMI have higher prevalence of smoking and vaping than students without an HMI.


1958 ◽  
Vol 95 (2) ◽  
pp. 125-136 ◽  
Author(s):  
C. A. Cotton

AbstractAlternation of morphogenetic systems conditioned by wide swinging of climatic belts equatorward and poleward has been used to explain otherwise puzzling relict forms in many regions. A characteristic finely dissected landscape relief prevalent in some middle-latitude regions is in strong contrast with smoothed, coarse-textured, whalebacked, relatively featureless relief in others, notably western Europe, which are now in the humid-temperate zone. This latter is believed to be relict from the periglacial regimes of Pleistocene ice ages. In New Zealand where the former landscape type is typically developed, there has also been quite strong “periglaciation”, and in Europe running-water erosion cannot but have operated to some extent in interglacial ages. It appears that the periglacial smoothing has been pushed to the extreme limit in Europe but that its effects have been neutralized in New Zealand by the vigour of dissection in the alternating warm ages. Periglacial smothering, or “fossilization”, of fine-textured relief, which has been followed by renewed fine dissection, is very common at Wellington, New Zealand. The reasons are not clear why running water should have been (and should still be) more efficient in dissecting the New Zealand landscape than that of Europe, so that the relict periglacial landscape remains intact in the latter region.


PLoS ONE ◽  
2021 ◽  
Vol 16 (8) ◽  
pp. e0256623
Author(s):  
Jesse M. Rubenstein ◽  
Philip E. Hulme ◽  
Christopher E. Buddenhagen ◽  
M. Philip Rolston ◽  
John G. Hampton

Imports of seeds for sowing are a major pathway for the introduction of contaminant seeds, and many agricultural weeds globally naturalised originally have entered through this pathway. Effective management of this pathway is a significant means of reducing future plant introductions and helps minimise agricultural losses. Using a national border inspection database, we examined the frequency, origin and identity of contaminant seeds within seed for sowing shipments entering New Zealand between 2014–2018. Our analysis looked at 41,610 seed lots across 1,420 crop seed species from over 90 countries. Overall, contamination was rare, occurring in 1.9% of all seed lots. Among the different crop types, the arable category had the lowest percentage of seed lots contaminated (0.5%) and the forage category had the highest (12.6%). Crop seeds Capsicum, Phaseolus and Solanum had the lowest contamination rates (0.0%). Forage crops Medicago (27.3%) and Trifolium (19.8%) had the highest contamination rates. Out of 191 genera recorded as contaminants, Chenopodium was the most common. Regulated quarantine weeds were the rarest contaminant type, only occurring in 0.06% of seed lots. Sorghum halepense was the most common quarantine species and was only found in vegetable seed lots. Vegetable crop seed lots accounted for approximately half of all quarantine species detections, Raphanus sativus being the most contaminated vegetable crop. Larger seed lots were significantly more contaminated and more likely to contain a quarantine species than smaller seed lots. These findings support International Seed Testing Association rules on maximum seed lot weights. Low contamination rates suggest industry practices are effective in minimising contaminant seeds. Considering New Zealand inspects every imported seed lot, utilises a working sample size 5 times larger than International Seed Testing Association rules require, trades crop seed with approximately half of the world’s countries and imports thousands of crop seed species, our study provides a unique overview of contaminant seeds that move throughout the seed for sowing system.


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