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Scarification is often done mechanically, thermally, and chemically. The seeds of many plant species are often impervious to water and gases, thus preventing or delaying germination. Any process designed to make the testa (seed coat) more permeable to water and gases is known as scarification.
True dormancy or inherent (or innate) dormancy is caused by conditions within the seed that prevent germination even if the conditions are favorable. [7] Imposed dormancy is caused by the external conditions that remain unsuitable for germination [8] Seed dormancy can be divided into two major categories based on what part of the seed produces dormancy: exogenous and endogenous. [9]
A late summer- to autumn-blooming plant, [6] A. tuberosum is one of several Allium species known as wild onion and/or wild garlic that, in various parts of the world, such as Australia, are listed as noxious weeds or as invasive "serious high impact environmental and/or agricultural weeds that spread rapidly and often create monocultures".
Chive seeds Chive seedlings sprouting. Chives, scientific name Allium schoenoprasum, is a species of flowering plant in the family Amaryllidaceae.. A perennial plant, A. schoenoprasum is widespread in nature across much of Eurasia and North America.
Also, many desert plants have evolved the ability to produce a fraction of their seeds to not germinate at the same time as the rest of the plant's seeds as a safe guard known as bet hedging in which if the majority of a plant's seeds germinate at one time and then die due to rain followed by drought, the potential for the plant to have ...
The flowers have one style and six epipetalous stamens; the anthers and pollen can vary in color depending on the species. The ovaries are superior, and three-lobed with three locules. The fruits are capsules that open longitudinally along the capsule wall between the partitions of the locule. [21] [22] The seeds are black, and have a rounded ...
Erosion control: Because plant materials (stems, crowns, etc.) can remain in place year-round, topsoil erosion due to wind and rainfall/irrigation is reduced [11]; Water-use efficiency: Because these crops tend to be deeper and more fibrously-rooted than their annual counterparts, they are able to hold onto soil moisture more efficiently, [12] while filtering pollutants (e.g. excess nitrogen ...
Allium monanthum, the Korean wild chive, [2] is a spring vegetable with minuscule bulbous roots that have a mild onion flavor and found in the woodlands of Korea, Japan, northeastern Russia , and northeastern China (Hebei, Heilongjiang, Jilin, Liaoning).