Examples of varietal

Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0
Varietal relationships in available sugar content as aected by period of harvest.
Varietal characteristics aecting ratooning potential of sugar cane.
The spread and impact of a rice variety identified by participatory varietal selection.
Recommended safe limits were 24 h for maize and rice and 10 h for chickpea, with only minor varietal dierences.
The pattern of development is in part determined by weather, initial planting density, varietal characteristics, and soil conditions.
A statistical analysis of varietal yields of sugarcane obtained over a period of years.
Nitrogen fixation throughout growth, and varietal differences in nitrogen fixation by the rhizosphere of rice planted in pots.
The observed varietal background effects on the seedling growth response to low water potential indicate the participation of an unknown number of uncharacterized genes.
Although the notes on the cover mention varietal selection for early bearing, disease resistance, etc., there is no discussion of these subjects.
We agree, with the exception of the collaborative work that takes place during the on-farm selection of varieties - participatory varietal selection.
The range of control tactics available is well discussed, from cultural and varietal to biological and pesticidal.
They observed that while formal breeding programmes best address varietal development, informal (local) mechanisms are important in production, storage and exchange.
Four varietal characteristics favoured diffusion of this seed.
From the 1940s, there was a considerable expansion in the use of seeds of cultivated varieties and varietal improvement.
Therefore, varietal recommnedations based on their adaptability over diverse environments under far mer practices was different from that using recommended practices.
Developing varietal and management options for sorghum-groundnut intercropping remains a further challenge for research.
The indicator matrix of varietal exchange and matrix of parental exchange tracks international exchanges of varieties and is available for rice for selected countries.
We do not regard it as participatory varietal selection that involves trials on farmers' fields.
The horsegram farmers are doubly constrained by limited varietal choice and by the non-availability of seed of recommended varieties.
A ®nancial analysis revealed the very high internal rates of return that are possible from investment in participatory varietal selection.
However, varietal selection is often based primarily on grain yield (single trait).
The agronomic and varietal package of effects rolled up in to the sowing date treatment exerted an important effect on the dynamics of trophic relationships.
In the original project, there had been no plan for 'scaling up' of the new methods of participatory varietal selection and plant breeding.
On-farm varietal diversity was further enhanced by farmer-to-farmer dissemination of new rice varieties.
However, no signi®cant genotype 6 location interactions were detected suggesting that varietal dierences were reasonably uniform across all sites.
The contributors are scientists of international repute, with on-hand experience in interacting with far mers in participatory plant breeding and participatory varietal selection.
In 1995 constraints and opportunities in sorghum growing and farmers' varietal matching characteristics were identi®ed through an informal survey.
Exposing farmers to varietal choices will highlight the importance of increasing overall variability to cope with crop failure conditions.
Woods saw the cross-varietal similarities not as evidence of a similar source but as evidence of parallel and independent developments.
After 1973, the pace of varietal development quickened, with 14 new releases (eight durum, six bread wheat, by 1993).
Therefore, varietal differences observed at the end of storage may not necessarily reflect differences at sampling and hence the order of performance of the cultivars in storage may have changed.
Varietal choice between the locations varied greatly depending upon the biological and post-harvest qualities and utilization of chaite rice varieties, as well as a number of socio-economic factors.
The objective of the present study is to propose and illustrate a simple method of taking account of multi traits in varietal selection on a proper statistical basis.
Location differences observed in both seasons under recommended and far mer practices indicated that adequate variability among locations existed for the evaluation of varietal adaptability over diverse environments.
Varietal features have been described as belonging to a continuum, in which it is difficult to determine with exactitude where one level ends and another starts.
Varietal responses to storage and germination temperatures.
The rate of crop varietal replacement on farms: measures and empirical results for wheat.
There are many other examples of empowering farmers through participation in plant breeding and varietal selection and it is often a useful, additional product from our research.
Participatory scaling up of participatory varietal selection.
There are considerable varietal dierences in ratoon performance, and selection for this character is a major objective in any programme where ratoon crops are important commercially.
Varietal reactions of bananas and plantains to black leaf streak disease.
The rate of generation and adoption of improved varieties, and therefore the time lag from varietal release to widespread use, varies across regions.
Studies on the flooding tolerance of soybean seed: varietal differences.
Here we were most interested in identifying the appropriate collaborators who have special knowledge in varietal choice or responsibility for doing tasks related to rice production and post-harvest activities.
The challenge was to develop methodologies to include farmers' criteria in rice varietal selection and to include farmers in the early evaluation of new rice lines under their own management.
The spread and impact of a rice variety identi®ed by participatory varietal selection.
Varietal effects on the white speck phenomenon.
Varietal testing and popularization and research linkages.
Varietal performance and interaction with year.
Varietal release and notification procedures.
The need to supply the market with specific varietal characteristics has become commonplace.
From the
Hansard archive