Effects of initial spacing and species mix on stand developmental patterns in two field trials in central Oregon

2021 ◽  
Vol 491 ◽  
pp. 119153
Author(s):  
Douglas A. Maguire ◽  
Douglas B. Mainwaring
Keyword(s):  
Field Trials ◽  
Developmental Patterns ◽  
Initial Spacing

Early sowing with wheat cultivars of suitable maturity increases grain yield of spring wheat in a short season environment

1992 ◽  
Vol 32 (6) ◽  
pp. 717 ◽  
Author(s):  
NJ Kerr ◽  
KHM Siddique ◽  
RJ Delane
Keyword(s):  
Dry Matter ◽  
Current Practice ◽  
Field Trials ◽  
Kernel Weight ◽  
Wheat Cultivars ◽  
Kernel Number ◽  
Developmental Patterns ◽  
Grain Yields ◽  
Wide Range ◽  
Short Season

Eleven field trials were sown in the northeastern wheatbelt of Western Australia to test the hypothesis that if wheat cultivars with suitable maturity are sown earlier than current practice, then higher grain yields will be achieved. The experiments included time of sowing treatments that ranged from early May to late June in 1988, 1989 and 1990. Seven commercial cultivars with a wide range of developmental patterns and maturities were used. Sowing between mid May and early June produced the highest grain yields. For plantings after early June, yields declined by approximately 250 kg/ha (15%) per week. Delayed sowing caused a decrease in dry matter and kernel number (per m2). In general this reduction in kernel number was not compensated by an improvement in kernel weight. At early times of sowing, the medium-long season cultivars generally had higher yields than short season cultivars. The short season cultivars were the highest yielding cultivars at the late times of sowing. These results suggest that cultivars should be chosen to suit the seasonal break, which may vary from late April to mid June. As a consequence, farmers should be encouraged to retain a number of cultivars with differing maturities suited to a range of planting times.

Do Children With Developmental Language Disorder (DLD) Have Difficulties With Interference Control, Visuospatial Working Memory, and Selective Attention? Developmental Patterns and the Role of Severity and Persistence of DLD

2020 ◽  
Vol 63 (9) ◽  
pp. 3036-3050
Author(s):  
Elma Blom ◽  
Tessel Boerma
Keyword(s):  
Working Memory ◽  
Selective Attention ◽  
Language Disorder ◽  
Typically Developing ◽  
Developmental Language Disorder ◽  
Visuospatial Working Memory ◽  
Interference Control ◽  
Developmental Patterns ◽  
Search Tasks ◽  
The Impact

Purpose Many children with developmental language disorder (DLD) have weaknesses in executive functioning (EF), specifically in tasks testing interference control and working memory. It is unknown how EF develops in children with DLD, if EF abilities are related to DLD severity and persistence, and if EF weaknesses expand to selective attention. This study aimed to address these gaps. Method Data from 78 children with DLD and 39 typically developing (TD) children were collected at three times with 1-year intervals. At Time 1, the children were 5 or 6 years old. Flanker, Dot Matrix, and Sky Search tasks tested interference control, visuospatial working memory, and selective attention, respectively. DLD severity was based on children's language ability. DLD persistence was based on stability of the DLD diagnosis. Results Performance on all tasks improved in both groups. TD children outperformed children with DLD on interference control. No differences were found for visuospatial working memory and selective attention. An interference control gap between the DLD and TD groups emerged between Time 1 and Time 2. Severity and persistence of DLD were related to interference control and working memory; the impact on working memory was stronger. Selective attention was unrelated to DLD severity and persistence. Conclusions Age and DLD severity and persistence determine whether or not children with DLD show EF weaknesses. Interference control is most clearly impaired in children with DLD who are 6 years and older. Visuospatial working memory is impaired in children with severe and persistent DLD. Selective attention is spared.

Subtypes of Attention Deficit Hyperactivity Disorder: Evidence From DSM-IV Field Trials

1995 ◽  
Author(s):  
B. B. Lahey ◽  
B. Applegate ◽  
K. McBurnett ◽  
J. Biederman ◽  
L. Greenhill ◽  
...  
Keyword(s):  
Attention Deficit Hyperactivity Disorder ◽  
Attention Deficit ◽  
Field Trials ◽  
Hyperactivity Disorder ◽  
Dsm Iv

Designing and Implementing Randomized Field Trials of Interventions in Schools

2007 ◽  
Author(s):  
George Bohrnstedt ◽  
Jeanne Poduska ◽  
Mike Garet ◽  
Sheppard Kellam ◽  
David Myers
Keyword(s):  
Field Trials ◽  
Randomized Field Trials

Primary Health Care and the ICD-11

2013 ◽  
Vol 10 (01) ◽  
pp. 33-37 ◽  
Author(s):  
M. Klinkman ◽  
D. Goldberg
Keyword(s):  
Health Care ◽  
Primary Health Care ◽  
Mental Disorders ◽  
Medical Care ◽  
Special Needs ◽  
Field Trials ◽  
Primary Medical Care ◽  
Dsm 5 ◽  
Primary Health ◽  
Icd 10

SummaryThis paper describes the necessity of adapting the major classifications of mental disorders exemplified by the ICD-11 and the DSM-5 for the special needs of primary medical care. An earlier version of the classification – the ICD-10-PHC – is described, and the process of adapting it is described in detail. The new 28 item version of the classification is described, and the procedures to be adopted in the Field Trials to be held during 2013 are set out, together with the specific problems these field trials will address.

Pengembangan Media Pembelajaran Berbasis Ispring Suite 8 Pada Materi Perwasitan Matakuliah Teori dan Praktek Bola Voli 1 Tahun Akademik 2018/2019

2019 ◽  
Vol 25 (2) ◽  
pp. 18-26
Author(s):  
Antonius Prasetyo Hadi
Keyword(s):  
Learning Process ◽  
Success Factors ◽  
Field Trials ◽  
Theory And Practice ◽  
Research Subjects ◽  
Study Program ◽  
Expert Review ◽  
Critical Success ◽  
Media Learning ◽  
Academic Year

: The use of learning media is one of the critical success factors in higher education, therefore an educator must have innovation to use of learning media. The purpose of this research is to develop learning media based on the Inspiring Suit 8 on arbitration material courses of theoretical and practice for Volleyball 1 academic year 2018/2019 at IKIP Budi Utomo Malang. The existence of media will be a big successful support in learning process, so that students do not feel boredom because of the weaknesses of the lecturers, in which they are unable to provided good learning variation or even have difficulty in conveying or transferring knowledge. The research was descriptive qualitative design. The research subjects were students of Physical Education, Health, and Recreation Study Program who took volleyball theory and practice courses in the even semester academic year 2018/2019. The instruments used were the media expert review questionnaire, the learning expert questionnaire, and the trial analysis questionnaire. The questionnaire will be analyzed to see the feasibility of the developed media. Based on the data results review by media expert volleyball, media learning expert and field trials, it can be concluded that media developed is useful in learning process. In addition, it is used to provide independent motivation, which can be used in lesson for students.

Responses of soybean genotypes to intercropping with maize in the Southern Guinea Savanna, Nigeria

2004 ◽  
Vol 52 (2) ◽  
pp. 157-163
Author(s):  
C. U. Egbo ◽  
M. A. Adagba ◽  
D. K. Adedzwa
Keyword(s):  
Seed Yield ◽  
Block Design ◽  
Field Trials ◽  
Yield Response ◽  
Ecological Zone ◽  
Land Equivalent Ratio ◽  
Guinea Savanna ◽  
Days To Maturity ◽  
Soybean Genotypes ◽  
Location Interaction

Field trials were conducted in the wet seasons of 1997 and 1998 at Makurdi, Otukpo and Yandev in the Southern Guinea Savanna ecological zone of Nigeria to study the responses of ten soybean genotypes to intercropping. The experiment was laid out in a randomised complete block design. The genotypes TGX 1807-19F, NCRI-Soy2, Cameroon Late and TGX 1485-1D had the highest grain yield. All the Land Equivalent Ratio (LER) values were higher than unity, indicating that there is great advantage in intercropping maize with soybean. The yield of soybean was positively correlated with the days to 50% flowering, days to maturity, plant height, pods/plant and leaf area, indicating that an improvement in any of these traits will be reflected in an increase in seed yield. There was a significant genotype × yield × location interaction for all traits. This suggests that none of these factors acted independently. Similarly, the genotype × location interaction was more important than the genotype × year interaction for seed yield, indicating that the yield response of the ten soybean genotypes varied across locations rather than across years. Therefore, using more testing sites for evaluation may be more important than the number of years.

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