sterile
1. Barren. Refers to fern leaves that do not produce spores. 2. Unproductive, as a flower without a pistil, or a stamen without an anther.
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Sterile Lacking fertility or reproductive potential; said of a soil heated or treated to remove harmful organisms. Barren, not able to produce seed.
sterile (1) Material that is free of disease organisms (pathogens), as in potting medium. (2) A plant that is unable to produce viable seeds.
Sterile soil?
...instructions regarding gardening require "sterile soil". I may not be using the right word, but they usually are referring to a soil that doesn't have any germs.
A sterile stamen.
stigma
The knob on the end of the pistil, which recieves the pollen.
Using sterile shears or scissors, cut the branches into sections, each section containing exactly 2 leaf nodes. Carefully remove the lower set of leaves.
Use a sterile potting mix, or try this one from V. J. Billings, owner of Mountain Valley Growers, an organic nursery in Squaw Valley, California: Mix approximately 60 percent peat moss with 40 percent perlite, ...
Use a sterile potting mix, rather than soil from your garden. Outdoor soil can harbor fungus spores.
Start with clean pots. If reusing pots, sterilize in 1 part beach to 10 parts water.
Sharp, sterile pruning knife
Rootstock
Scion material
Grafting tape or plastic wrap
In whip and tongue grafting, fruit tree scions are grafted in the dormant season on rootstock whips of similar diameter that have been growing at least one season.
Using a sterile, soil-free potting mixture, start tomatoes indoors six to eight weeks before the frost-free date (May 15th in our area). Germination will take 7 to 14 days at 75° to 80° F.
2. Using sterile, sharp shears, cut just above a leaf axil. Note: A quick way to sterilize your cutting shears is to dip the blades in rubbing alcohol.
3.Remove the leaves along the base of the stem.
4. Make a diagonal cut at the base of the stem.
* Plant in sterile, well-drained potting soil.
* Planting depth need not be precise; just below the soil's surface is fine.
* After planting, store bulbs in a cool, dark place. Do not let the bulbs freeze, and do not let them dry out.
Use a sharp sterile knife to remove a 2 to 3 inch section of new growth at the end of a stem. Pull of the leaves on the bottom 1 inch of the cutting and insert it into peat moss or perlite. The cutting must always be moist but not soggy.
Fill a clean sterile vase with room temperature water then add a dash of bleach to keep the water clean. Too much bleach can fade or even kill the flowers.
Always use a sterile container.
Drink the tea as soon as it's ready; never let it sit at room temperature.
Refrigerate any extra and use it up within eight hours.
Perlite is a sterile material produced by heating volcanic rock to approximately 1800°F. The result is a very lightweight, porous material that is white in color. Its principal value in medium mixtures is aeration.
With a sharp, sterile knife, cut the stem at an slight angle (try to match the angle of the leaf), 1 - 1 1/2 inchs from the leaf.
Start seeds in a sterile, light, free-draining seed-starting mix (available at most garden centers). Do not use garden soil. Young seedlings are especially vulnerable.
Use good, quality, sterile potting soil and center your plant in the pot. Spread out the roots and make sure that they are completely covered with soil. Gently, firm down the soil.
Tiger lilies are sterile and do not produce seeds. If you want to create a bed of common wildflower tiger lilies, transfer some plants from another flourishing bed.
Mix your own soil or buy a sterile, premixed medium, but never use garden soil when growing container plants. Watering trees in containers is tricky.
Soil for seeds sown indoors should be porous, lightweight, and sterile. All three demands can be met if you purchase a seed-starting mixture from a garden store (to make your own seed-starting medium, see "Make & Bake").
Fill the egg with sterile seed-starting mix and a dash of vermicompost (aka worm poo). I was out of potting soil and too involved in the scientific process to go out for some, so I cheated and used soil from another pot. The soil wasn't sterile but.
A soilless potting mix -- purchased or homemade -- provides a nearly sterile environment for the plants. Three 40-quart bags of soilless potting mix are ample.
Perlite B This is a sterile material produced by heating volcanic rock to approximately 1,800 degrees Fahrenheit resulting in a very lightweight, porous material that is white in color. Its principal value in soil mixtures is aeration.
Unlike their invasive catmint cousins, nepeta hybrids are sterile and more restrained in their growth habits.
Spread seeds sparingly on top of a container of sterile, damp potting soil. Water with a fine mist to wash them into the potting material or press them in gently with your fingers before watering.
Rockwool is an inorganic, sterile, inert growing medium made from a combination of basalt rock, limestone, and silica. It's available in various-sized propagating blocks, wrapped cubes, and large slabs.
Plant seeds in a sterile, soilless potting mix or in seed flats. Start impatiens seeds well in advance of spring; you can plant seeds indoors 6 to 10 weeks before setting the seedlings outside.
Seeds should be sown in a sterile mixture often called a germinating mix or seed starting mix. This mixture usually consists of vermiculite, perlite and peat moss. Ready packaged mixes are available in garden centres and D.I.
Spanish (L Stoechas) lavender is the most popular variety and can be identified by the large, petal like sterile bracts (rabbit ears) at the top of the flower spike. Stoechas can be grown on it's own or used as a hedge.
Using sterile compost for indoor sowings and a seedling-strength mixture of seaweed fertiliser may also help. direct sown This just means to sow the seed in the final position where it is required.
While we make every effort to provide a sterile server environment, we also do not guarantee that the Site will be error free or that it or the servers that operate it are free of viruses or other harmful components.
Preferably use sterile soils that have been pasteurized with heat before planting. Maintain a soil pH at the low end of the average scale. A soil of 6.4 pH is less susceptible to root rot than a pH of 7.5.
To propagate orchids from seed, you must work in sterile conditions. The seeds must be grown in a gelatinous substance that contains nutrients and growth hormones. You must also be very patient.
Also needed are a pair of sharp, sterile scissors to cut your clipping and remove excess foliage, a glass of fresh, tepid, water, a pencil or chop stick, and a container(filled with the planting mix of your choice) in which to transfer your new clone.
Some hybrid cottonwoods sold in the nursery trade are listed as "sterile female hybrids". These are not "cottonless" because they are not male.
A sterile, store-bought mixture is usually the best bet. Use horticultural vermiculite or a mixture of equal amounts of vermiculite, milled sphagnum moss and perlite.
start seeds in a shady bed or in pots filled with sterile commercial seed-starting mix. Fresh seeds gathered from plants sprout in 10 days, but dried seeds from commercial seed packets can take several weeks.
To grow new African violets, use a sterile knife and cut off a healthy leaf as near the base as possible. Dip the stem in rooting hormone then push it through a piece of paper and place the stem in water until it develops roots.
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Sterilize - make sterile (super-clean) by removing dirt, germs and bacteria. A good sterilizer for hydroponic equipment is a 10 percent bleach to water solution.
Stroboscopic effect - a quick pulsating or flashing of a lamp.
Plant seeds in containers 1/2 inch deep, in sterile starting mix. Water thoroughly once, then lightly after the seeds have sprouted.
Whether direct seeding or transplanting, space plants 18 to 24 inches apart, in rows three feet apart.
1. Fill tray or pot with sterile medium, mist with water, then top with 1/4 inch of milled sphagnum moss. Press moss with book. Sprinkle seeds across moss surface or into shallow rows.
Step 2 ...
Agar - a gelatinous substance used for sterile propagation of plants most often orchids.
Aggregate fruit - Fruit that results from a single flower with many separate carpels. An example is the blackberry.
TISSUE CULTURE: A very sterile practice of propagating plants from the mother plant.
TOP-DRESSING: A process that means to apply on the top surface of the soil.
The best soil for starting seeds is loose, well-drained, fine textured, sterile, and low in nutrients. Many of the best starting "soils" are soil-less mixes. Various starter mixes are available in stores, as well as labor saving peat pellets.
Potting Soil - What makes a potting soil anyway? It should be light, loose and sterile. Of course it is rich in nutrients but differs from topsoil in density due to the presence of several non-binding elements like coarse sands and minerals.
In most cases, they are potted in sterile soils or soilless mixes, and are often grown closer at hand, so they are inspected more frequently. As a result, they tend to have fewer problems with insects and disease.
Let the stem cutting dry out for a few hours so that it can form a callus. Pre-moisten a sterile soil mix which should consist of 50% peat and 50% sand or 70% perlite and 30% peat. Vermiculite instead peat or perlite will also work.
MICRO-CUTTING: A plant produced by micropropagation - a modern technique using tiny pieces of the parent plant on a sterile nutrient jelly.
MICRO-ORGANISMS: Animals and plants that are too small to be seen clearly with the naked eye.
Commercial seed-starting mixes, usually composed of vermiculite and peat, without any true soil, are recommended for starting seeds. They're sterile, lightweight and free from weed seeds, ...
Some organic growers prefer to mix their seeds with peat and moisten them before putting the mixture back into the refrigerator in a sealed bag. Be sure the peat is sterile.
Compost helps to control diseases and insects that might otherwise overrun a more sterile soil lacking natural checks against their spread. Leaf based compost is showing promise suppressing nematodes.
Hybrids cross genetically-dissimilar parents for any number of characteristics, and are basically sterile in and of themselves. An open-pollinating plant naturally reproduces itself identically from its own seed.
Plants grown from the seed of a hybrid variety are often sterile, or else they revert to one of the "parent" varieties that created the original hybrid. Regardless, it will not reproduce true to the fruit or vegetable you started with.
Chemical fertilizers sterilize soil and plants don't like sterile soil very much. Oh you can fool some of the plants some of the time, but you can't fool all of the plants all of the time (Sorry, Abe.).
Dirt, plants love it, but it is one thing that Florida truly lacks. Sure, we have sand all over this state, but sand tends to be humus-less, sterile and quick draining. Not the preferred growing medium for plants.
Do not purchase seeds, as they are generally sterile. If potting up outdoor plants for indoor use, plant by mid-summer.
Dip cuttings in rooting hormone (this is entirely optional) and insert into damp vermiculite, coarse sand or other sterile medium.
Layer 3. Add a 1-2 inch layer of top soil or finished garden compost. This is done to introduce the microorganisms to the pile. Avoid using soil recently treated with insecticides and also avoid using sterile potting soil.
 See also: Plant, Soil, Water, Flower, Light
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