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Alfred Stefferud
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» Production of Seeds of Forest Trees
By Alfred Stefferud | Published 06/19/2007 | Agriculture | Unrated

TWO MILLION acres of forest land were planted with tree seedlings, for which about a thousand tons of seeds from a multitude of species had been collected, in the winter of 1959.



» Collecting and Handling Seeds of Forest Trees
By Alfred Stefferud | Published 06/17/2007 | Agriculture | Rating:

SOME 50 million acres in the United States (exclusive of Alaska and Hawaii) need to be planted to trees because they are not restocking naturally with desirable forest trees...



» The Commercial Production of Seeds of Flowers
By Alfred Stefferud | Published 06/15/2007 | Agriculture | Unrated

SEEDS OF some 1,500 varieties of flowers are available to amateur gardeners in the United States.



» Growing Vegetable Seeds for Sale
By Alfred Stefferud | Published 06/15/2007 | Agriculture | Unrated

MEN WHO grow vegetable seeds for sale engage in a specialized and highly competitive farming operation.



» Producing and Harvesting Tobacco Seed
By Alfred Stefferud | Published 06/14/2007 | Agriculture | Unrated

THE FIRST step in producing a satisfactory crop of tobacco is to use good seed that is true to type.



» New Ways With Seeds of Sugarbeets
By Alfred Stefferud | Published 06/14/2007 | Agriculture | Unrated

THE OLD method of producing seeds of sugarbeets was to grow vegetative plants one season, store them over winter in pits or field trenches, and reset them in the field the second year to let them seed.



» Producing and Harvesting Seeds of Oilseed Crops
By Alfred Stefferud | Published 06/13/2007 | Agriculture | Unrated

THE LEADING oilseed crops grown in the United States are soybeans, peanuts, flaxseed, safflower, castorbeans, and sesame.



» Producing Seeds of Cotton and Other Fiber Crops
By Alfred Stefferud | Published 06/13/2007 | Agriculture | Unrated

FOUR LARGE companies produce the cotton seed that is used on 90 percent of the planted acreage in the Southern and Southeastern States.



» Harvesting the Seeds of Grasses and Legumes
By Alfred Stefferud | Published 06/13/2007 | Agriculture | Unrated

IT IS NOT easy to harvest the seeds of grasses and legumes. Many methods and special machines are needed, and they get only a part of the seed.



» Producing Seeds of the Legumes
By Alfred Stefferud | Published 06/13/2007 | Agriculture | Unrated

SEVERAL botanical features are a bane and a boon in the production of seed of the legumes.



» The Production of Grass Seeds
By Alfred Stefferud | Published 06/13/2007 | Agriculture | Rating:

THE GROWERS of seed aim to grow good seed of species and varieties that are in demand and to achieve economical production.



» Our Sources of Seeds of Grasses and Legumes
By Alfred Stefferud | Published 06/13/2007 | Agriculture | Unrated

SEVERAL hundred varieties of grasses and legumes comprising more than 125 species have economic importance in the United States.



» Seeds of Oats, Barley, Wheat, and Rice
By Alfred Stefferud | Published 06/13/2007 | Agriculture | Unrated

THE GOOD farming practices that are needed for a successful cereal crop are the same whether the crop is grown for feed or seed.



» Producing Seed of Hybrid Corn and Grain Sorghum
By Alfred Stefferud | Published 06/13/2007 | Agriculture | Unrated

AFTER 26 years or so of research, the first commercial hybrid corn seed for sale to farmers in any quantity was produced in Iowa in 1926.



» Propagation of Crops Without True Seeds
By Alfred Stefferud | Published 05/29/2007 | Agriculture | Unrated

MOST of the plants in our fields and gardens usually are grown from true seeds.



» Fundamental Procedures in Breeding Crops
By Alfred Stefferud | Published 05/29/2007 | Agriculture | Rating:

THE IMPROVEMENT of farm and garden crops undoubtedly began in prehistoric times after man abandoned his nomadic habits and settled in more or less permanent quarters.



» Breeding for Food, Feed, and Industrial Uses
By Alfred Stefferud | Published 05/28/2007 | Agriculture | Unrated

MOST of the cultivated species of crop plants have been modified by breeding procedures to increase their usefulness as food, feed, and industrial products.



» Problems and Rewards in Improving Seeds
By Alfred Stefferud | Published 05/27/2007 | Agriculture | Unrated

THE NUMBER of acres that are planted to a variety of a crop may depend on the availability and cost of its seed.



» Afterripening, Rest Period, and Dormancy
By Alfred Stefferud | Published 05/27/2007 | Agriculture | Unrated

SEED MATURITY and seed germination follow in direct sequence in the life of a plant, but normally they are separated in time and space.



» Until Time and Place Are Suitable
By Alfred Stefferud | Published 05/26/2007 | Agriculture | Unrated

ONE MUST KEEP in mind the place of the seed in the life of the plant if he is to understand the processes of germination.



» How Long Can a Seed Remain Alive?
By Alfred Stefferud | Published 05/26/2007 | Agriculture | Rating:

PEOPLE USED to think that 150 years was about the maximum lifespan of the most durably viable seeds.



» Life Processes of the Living Seed
By Alfred Stefferud | Published 05/25/2007 | Agriculture | Unrated

THE EMBRYO in a seed draws on its endosperm for the nutrients it needs to germinate and grow.



» Plants Must Disperse Their Seeds
By Alfred Stefferud | Published 05/24/2007 | Agriculture | Rating:

NOT ALL SEEDS survive the struggle for existence. Any marked change in environment, moisture, temperature, amount of sunlight, or soil composition may create conditions...



» Unusual Events in Seed Development
By Alfred Stefferud | Published 05/24/2007 | Agriculture | Unrated

BEFORE CONSIDERING unusual nuclear phenomena in seed formation, let us review briefly the standard sequence of events leading to the formation of the embryo and endosperm.



» The Thread of Life Through Seeds
By Alfred Stefferud | Published 05/24/2007 | Agriculture | Rating:

THE ORIGIN of each new seed-bearing plant traces back to the time of flowering.



» Flowering Habit and Production of Seeds
By Alfred Stefferud | Published 05/23/2007 | Agriculture | Unrated

AMATEUR GARDENERS sometimes ask, "What should I do to get seeds of the plants that I grow in my garden?"



» Growth Regulators, Stimulants, and Seeds
By Alfred Stefferud | Published 05/23/2007 | Agriculture | Unrated

SOME KINDS of woody plants have been made to grow six times faster than normal by treating them with one of the chemicals we call plant-regulating compounds or plant regulators.



» Temperatures and Fruits and Seeds
By Alfred Stefferud | Published 05/22/2007 | Agriculture | Unrated

DURING the warm months nearly all deciduous trees and many other plants in the United States form leaves, manufacture their food, and grow actively.



» Light, Flowering, and the Production of Seed
By Alfred Stefferud | Published 05/22/2007 | Agriculture | Rating:

For countless generations people have known that external conditions influence the flowering of plants.



» Age-Old Uses of Seeds and Some New Ones
By Alfred Stefferud | Published 05/22/2007 | Agriculture | Unrated

Wheat is the world's bread grain. Rice is used almost entirely as food and is the main crop of southern Asia.



» The Greatest Service to Any Country
By Alfred Stefferud | Published 05/21/2007 | Agriculture | Unrated

Those who first imported seeds and plants sought crops that were known to be the best in the regions where they grew.



» How Seeds Are Formed
By Alfred Stefferud | Published 05/20/2007 | Agriculture | Unrated

The stamen produces pollen grains that later form the male cells, or sperms. The stamen has a stalk, or filament, at the tip of which is the pollen sac, or anther.



» What Seeds Are and Do: An Introduction
By Alfred Stefferud | Published 05/19/2007 | Agriculture | Unrated

Seeds protect and sustain life. They are highly organized fortresses, well stocked with special supplies of food against long siege.



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