How to choose good quality flower seeds
In general, the open field or greenhouse flowers of a year or two are mainly depended on sowing for breeding. How to keep offspring to maintain the fine traits of flowers and select the seeds for harvesting good quality is the most crucial part.
First, select the period:
According to the actual needs of different types of flowers and production, consideration can be given to selecting several times in the following periods.
1. Selection of seedling stage: At the time of transplantation or colonization, one selection is made according to the correlation of the traits.
2. Early flowering period selection: The breeding of early flowering varieties in the previous period was inferior and could effectively maintain early flowering.
3. Full Flowering Period Selection: Choose the typical nature of the flowers during this period. Generally, a method of mixed selection is adopted, that is, according to the ornamental characteristics and economic characteristics of certain flowers, a plant with excellent flower color or fine traits is selected from an original hybrid group or variety, and is differentiated from the standard variety one year after planting. In comparison, after one or more selections, the superior plants that are no longer separated are selected. However, some flowers, such as cockscomb, snapdragon, carnation, cineraria, pansy, etc., are highly susceptible to natural hybridization, causing mixed and degraded varieties, and attention should be paid to species isolation. In addition, for some Asteraceae flowers, such as cineraria, cosmos, etc., the flower consists of two parts: ray flowers and tubular flowers. When selecting individual plants of such flowers, special attention should be paid to the color of unobtrusive tubular flowers. If the individual plants are selected based on the color of the striking florets, they tend to degrade gradually.
Second, the selection of parts: the same plant inflorescence or small flowers from different parts of the seed, the degree of typicality of the retained varieties are also different. Flowers that are usually the first to open on the seedlings can produce better offspring than those that bloom later, such as larger flowers and earlier flowering periods. For example, in the middle and lower parts of the central inflorescence, the cockscomb flower has a high rate of seed setting, as well as zinnia, amaranth, violet jasmine and half-branch. (If the late flowering variety is selected, early flowering should be removed, and late flowering should be reserved). For some flower species that grow on the main branches and lateral branches, such as petunias, cosmos, snapdragon, etc., the weight of the seeds in each fruit generally decreases from bottom to top, and the germination rate is also the same. On the decline, the offspring produced by them have significant differences in growth. This will select the seed from the lower flower. However, when it is too early to sow, or when it is cold in spring, there is often a case where the seed weight of the lowermost fruit is smaller. At this time, the largest fruit and the heaviest seed are born in the middle of the stem. To retain the buds on the main branch, remove the buds on the side branches. Seeds must be fully matured. It can be harvested one or more times.
Even though seeds of different positions in the same inflorescence differ, the degree of typicality of their descendants remains different. For example, in asteraceae flowers such as aster, marigold, cornflower, etc., seed born at the edge of the flower disk can best maintain its good traits. .
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