Producing High Quality Seed

2015 ◽  
pp. 425-441
Author(s):  
J. Ritchie Cowan
Keyword(s):  
High Quality ◽  
High Quality Seed

scholarly journals Seed research for improved technologies

1998 ◽  
Vol 55 (spe) ◽  
pp. 19-26 ◽  
Author(s):  
R.J. Bino ◽  
H. Jalink ◽  
M.O. Oluoch ◽  
S.P.C. Groot
Keyword(s):  
Cell Cycle ◽  
Cell Proliferation ◽  
Quality Assurance ◽  
Seed Germination ◽  
Seed Quality ◽  
Molecular Level ◽  
Control Mechanisms ◽  
High Quality ◽  
Production Chain ◽  
High Quality Seed

The production of high-quality seed is the basis for a durable a profitable agriculture. After production, seed is processed, conditioned, stored, shipped and germinated. For quality assurance, seed quality has to be controlled at all steps of the production chain. Seed functioning is accompanied by programmed transitions from cell proliferation to quiescence upon maturation and from quiescence to reinitiation of cellular metabolism upon imbibition. Despite the obvious importance of these control mechanisms, very little information is available at the molecular level concerning those elements that regulate seed germination. In the present study, the induction of cell cycle activity and the regulation of ß-tubulin expression is related to the water content and other physical properties of the seed.

scholarly journals Improving the Mechanization of High-Quality Seed Production

2018 ◽  
Author(s):  
Vladimir Ivanovich Orobinsky ◽  
Alexander Pavlovich Tarasenko ◽  
Aleksey Mikhailovich Gievsky ◽  
Aleksey Viktorovich Chernyshov ◽  
Ivan Vasilyevich Baskhakov
Keyword(s):  
Seed Production ◽  
High Quality ◽  
High Quality Seed

scholarly journals DEVELOPMENT OF FIELD CROP SEED PRODUCTION IN RUSSIA

2020 ◽  
Vol 8 (3) ◽  
pp. 81-85
Author(s):  
Artem Lukomec
Keyword(s):  
Food Security ◽  
Seed Production ◽  
Production System ◽  
Selection Process ◽  
Biological Properties ◽  
Field Crop ◽  
High Quality ◽  
Main Condition ◽  
Field Crops ◽  
High Quality Seed

Seed production of field crops plays a key role in ensuring food security of the country and is a continuation of the selection process, a necessary link for the development and maintenance of the variety. In seed production, the main object is a variety that is genetically close to each other a certain group of plants, homogeneous in morphological and biological properties. The finish of high-quality seed production is seeds with good varietal and sowing qualities. The main condition for effective production of field crops is a well-established seed production system, which is a set of functionally interconnected structures engaged in the production of elite and reproductive seeds. Seed production of field crops solves two main tasks: variety exchange and variety renewal. When a variety is changed, one zoned variety is replaced by another with more valuable economic characteristics. During variety renewal, varietal seeds in farms are replaced with seeds of the same varieties, but of higher reproductions. Usually, seeds for cereals and legumes are updated every 3-4 years, for millet - every 2 years, for sunflower - annually. The main goal of seed production of field crops is to maintain a set of characteristics of the variety, its most valuable qualities and economic indicators.

Evaluation of spring soft wheat varieties and zonal features of seed production in the Altai Territory

2021 ◽  
pp. 54-71
Author(s):  
S. V. Zharkova ◽  
E. I. Dvornikova
Keyword(s):  
Seed Production ◽  
Field Studies ◽  
Quality Parameters ◽  
Scientific Data ◽  
Soft Wheat ◽  
Forage Crops ◽  
High Quality ◽  
Wheat Varieties ◽  
Spring Soft Wheat ◽  
High Quality Seed

One of the leading grain crops in Russia is spring wheat. This is a strategic food crop of our country; it is also an important component in the structure of forage crops for monogastric animals, such as pigs and poultry. The purpose of the research was to evaluate spring soft wheat varieties of different maturity groups in order to identify genotypes as the starting material for obtaining varieties adapted to the cultivation zones, and to determine the areas optimal for the production of grain for seed purposes with high quality indicators. Field studies have been carried out in three ecologically different zones: the Priobskaya zone, the Prialtaiskaya zone, and the Prisalairskaya zone. Under the conditions of the Altai Territory, genetic sources of spring soft wheat have been identifi ed for different soil and climatic parameters of the study zones, the use of which will allow obtaining high-yielding varieties with high quality grain for specific cultivation conditions. The variability of the indicators of the characteristics of varieties in three ecologically different zones has been determined. The indicators of adaptability and stability of spring soft wheat varieties in different zones of cultivation have been determined. The optimal zones for conducting breeding work and seed production of varieties have been identifi ed. New scientific data on the quality parameters of seed grain in various agro-climatic zones of the Altai Territory have been obtained. The share of the contribution of the factors “variety”, “year”, “environment” to the variability of grain quality characteristics has been established. The economic efficiency of cultivating varieties of spring soft wheat for the production of high-quality seed grain has been determined.

scholarly journals A SUMMER FIELD GRAFTING TECHNIQUE FOR PINE

1959 ◽  
Vol 35 (1) ◽  
pp. 30-35
Author(s):  
D. P. Fowler
Keyword(s):  
Growing Season ◽  
Early Summer ◽  
High Quality ◽  
Grafting Technique ◽  
High Quality Seed ◽  
Pine Species

Field grafting is an important tool of tree breeders and other foresters concerned with the production of high quality seed for forestry purposes. Field grafting of many pines is carried out in the early summer during a period which is usually crowded with pollination and nursery work. This paper describes a summer grafting technique by which it is possible to successfully field graft pine species late in the growing season using current year's growth for scion and stock material.

scholarly journals The potential for production of high quality seed potatoes in Tierra del Fuego Island, Argentina

1999 ◽  
Vol 42 (1) ◽  
pp. 9-23 ◽  
Author(s):  
D. O. Caldiz ◽  
O. H. Caso ◽  
G. Vater ◽  
L. V. Fernandez
Keyword(s):  
Tierra Del Fuego ◽  
High Quality ◽  
Seed Potatoes ◽  
High Quality Seed

scholarly journals Helping Reforestation in Southeast Asia – The ASEAN-Canada Forest Tree Seed Centre Project

1990 ◽  
Vol 66 (3) ◽  
pp. 246-249 ◽  
Author(s):  
A. B. Case ◽  
B. S. P. Wang
Keyword(s):  
Southeast Asia ◽  
Forest Tree ◽  
Second Phase ◽  
High Quality ◽  
Tropical Regions ◽  
Planting Material ◽  
High Quality Seed ◽  
Operational Quantities ◽  
Cooperative Venture ◽  
Tree Seed

The ASEAN-Canada Forest Tree Seed Centre Project is a key development initiative by Canada in addressing the growing deforestation problems in tropical regions. The Centre was established in 1981 as a cooperative venture between Canada and the Association of Southeast Asian Nations to help overcome difficulties in acquiring and producing operational quantities of high quality seed and planting material for regional reforestation programs. The Project entered its second phase in 1989 under the direction of Forestry Canada, Petawawa National Forestry Institute. Phase II of the Project is described in terms of Canada's inputs and the anticipated outputs over the 6-year period, 1989–1995.

scholarly journals Feeding different cultivars and quality levels of faba bean to broiler chickens

2021 ◽  
Author(s):  
Miranda N Smit ◽  
Liangfei He ◽  
Eduardo Beltranena
Keyword(s):  
Faba Bean ◽  
Broiler Chickens ◽  
Frost Damage ◽  
Daily Weight Gain ◽  
Quality Level ◽  
High Quality ◽  
Dressing Percentage ◽  
D 12 ◽  
High Quality Seed

Abstract A concern of both pulse growers and poultry producers is how frost damage around harvest time affects the nutritional quality of faba bean for broiler chickens. To investigate, 2 zero-tannin cultivars (Snowbird, Snowdrop) and 1 low vicine and convicine cultivar (Fabelle) sourced from seed growers were spring planted 3 weeks later than recommended (mid-May) and harvested late October to purposely increase frost damage. Parent, certified seed (high quality) and harvested frost damaged beans (low quality) of the 3 cultivars were fed to 740 chickens housed in 64 floor pens in a 2 x 3 factorial plus control (9 pens of 11 or 12 birds per treatment). Starter (d 0 to 11), grower (d 12 to 24) and finisher (d 25 to 40) diets included 15, 30, and 45% faba bean in partial (starter, grower) or total replacement of soybean meal (SBM; control). Harvested Snowbird, Snowdrop, Fabelle averaged 52, 62, 17% blackened hull and 35, 43, 51% immature beans, respectively. There was a cultivar x quality interaction (P < 0.05) on daily feed disappearance (ADFI) and gain-to-feed (G:F). Broilers fed low quality Snowdrop consumed 10 g/d more finisher and 6 g/d more feed overall than those fed low quality Snowbird or Fabelle; broilers fed parent seed were intermediate. Feeding low quality Fabelle resulted in best overall G:F (0.646) vs. high quality Snowbird (0.611), high quality Fabelle (0.624), or low quality Snowdrop (0.624). Average daily weight gain (ADG) and bird body weight (BW) at the end of each growth phase were not affected by cultivar or quality level. Controls fed SBM only grew 2.75 g/d faster overall and were 113.5 g heavier at the end of the trial than broilers fed faba bean (P < 0.05). Controls fed SBM only had 0.024 g/g better overall G:F than broilers fed faba bean (P < 0.05). Feeding low quality beans or high quality seed had no effect on antemortem BW, chilled carcass weight (WT), dressing percentage or yield of saleable cuts except that broilers fed Snowbird or Snowdrop had 0.8%-unit larger thighs than those fed Fabelle. Controls fed SBM only were 110 g heavier at slaughter, had 72 g heavier chilled carcass WT, and 0.5%-unit greater dressing percentage than broilers fed faba bean (P < 0.05). These results indicate that feeding frost damaged and(or) immature faba bean, to the extent observed in this trial, did not negatively affect growth performance or carcass attributes of broiler chickens compared to feeding parent, certified, high quality seed of these cultivars.

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