Question

Назовите один процесс жизни деятельности растений зависящих от фотопериодизма

Answer 1

Растение приспосабливается к условиям окружающей среды . Если все внешние факторы  способствуют благоприятному развитию данного растение , то оно начинает переходить к цветению, в благоприятное , для него, время года . Данный процесс называется Зацветание .

Answer 2

Process of Photoperiodism in Plants

One process in the life cycle of plants that is dependent on photoperiodism is flowering. Photoperiodism refers to the response of plants to the duration of light and darkness in a 24-hour period. It plays a crucial role in regulating various physiological and developmental processes in plants, including flowering.

Plants have evolved to sense changes in the length of day and night, which helps them determine the appropriate time to flower. This response is critical for the reproductive success of plants, as it ensures that flowering occurs under favorable conditions for pollination and seed production.

Different plants exhibit different responses to photoperiodism. There are three main categories based on the duration of light required for flowering:

1. Long-day plants: These plants require a period of light longer than a critical duration to initiate flowering. They typically flower when the days are longer than a specific threshold. Examples of long-day plants include spinach, lettuce, and radishes.

2. Short-day plants: These plants require a period of darkness longer than a critical duration to initiate flowering. They typically flower when the days are shorter than a specific threshold. Examples of short-day plants include chrysanthemums, poinsettias, and soybeans.

3. Day-neutral plants: These plants are not influenced by the duration of light or darkness and can flower regardless of the photoperiod. Examples of day-neutral plants include tomatoes, cucumbers, and roses.

The response of plants to photoperiodism is regulated by a complex network of genes and hormones. The perception of light and darkness triggers a series of molecular events that ultimately lead to the activation or suppression of flowering genes.

It is important to note that while photoperiodism is a significant factor in regulating flowering, it is not the only factor. Other environmental cues, such as temperature and nutrient availability, also play a role in determining the timing of flowering in plants.