A plant hormone that promotes female flowers in cucumber is: (2024)

FAQs

A plant hormone that promotes female flowers in cucumber is:? ›

It is well established that ethylene promotes female flower development in cucumber.

Application of Ethylene increases the number of female flowers in cucumber plants, thereby increasing the final yield. Hence, Ethylene can be applied by the farmer to increase the number of female flowers in the cucumber plants.

Use of Gibberellic Acid

Gibberellic acid is a plant hormone that can promote male flower development in Cucumbers.

The application of Ethrel (2-chloroethane phosphonic acid), an ethylene-releasing compound, to monoecious cultivars of cucumber and squash and an andromonoecious cultivar of muskmelon, caused a shift towards femaleness in all three species.

Florigen, a proteinaceous hormone, functions as a universal long-range promoter of flowering and concurrently as a generic growth-attenuating hormone across leaf and stem meristems.

Other stresses, such as damage from insects or blowing soil, low light intensities, or water stress, can result in the production of fewer female flowers.

Ethylene is a simple gaseous natural plant growth hormone. Cucumber has separate male and female flowers. Ethylene increases the number of female flowers in cucumber and thereby enhances the yield.

Florigen is known as the flowering hormone which is responsible for controlling the flowering in plants.

(2010), together with previous studies published in the last decade, have provided evidence suggesting a link between ethylene signaling and primordial anther specific DNA damage in female cucumber flowers. These findings explained ethylene promotion of female flower by ethylene inhibition of stamen development.

Florigen, or flowering hormone, is thought to be a protein insulin particle that controls or enhances the flower initiation process in plants. These florigens are made in the leaf and are found in the bud's stem and root apical meristems and growing tips.

What stimulates a plant to flower? ›

At specific times of year, flowering plants produce a protein known as Flowering Locus T in their leaves that induces flowering. Once this protein is made, it travels from the leaves to the shoot apex, a part of the plant where cells are undifferentiated, meaning they can either become leaves or flowers.

Ethylene also encourages flowering and synchronizes fruit set in pineapples. A class of plant growth regulators known as ethylene is frequently employed to speed up the ripening of fruits and increase the number of blossoms and fruits that are produced.

Auxin and cytokinin are critical growth hormones in plant development and are naturally present within the plant at variable concentrations throughout the season. Their presence and activity are different from other hormones which act more in an on-off manner and are present only at specific times.

Ethylene, auxins, and gibberellins have all been shown to influence flower sex expression in cucurbits. Ethylene, which promotes femaleness, plays a predominant role.

Cucumbers will start flowering anywhere from 40 to 55 days after planting. If you look closely, you will notice that your plant produces two different types of flowers. The female flowers have a tiny unfertilized cucumber under them, while male flowers emerge directly from the stem.

Gynoecious cucumber plants produce only female flowers. These breeds have large numbers of female flowers but over a shorter period of growing time.

Most modern F1 cucumbers are all female (or at least mostly female) while older traditional varieties bear male and female flowers. If you are growing a traditional M/F variety (referred to as gynoecious), the male flowers need to removed to prevent pollination and bitter tasting fruits.