ethylene.
It is well established that ethylene promotes female flower development in cucumber.
Which of the following plant hormones promotes growth of the female flowers in cucumber ABA Ethylene IAA Zeatin?
So, the correct answer is ‘Ethylene(C2H4)’.
Why does my cucumber only have female flowers?
Cucumber varieties are either monoecious or gynoecious in their flowering patterns. Gynoecious varieties produce only female flowers and have a more concentrated period of fruit production. There are also parthenocarpic varieties that do not need to be pollinated to produce fruit.
Which hormone increases male flowers in cucumber?
Solution : Gibberellins promotes the production of male flowers in Cucurbits.
Is cucumber male or female flower?
Cucumbers, like most cucurbit plants, produce separate male and female flowers on the same plant (Figure 1). In botanical terms, these plants are said to be monoecious (translation, one-house).
How does ethylene promote female flowers in cucumbers?
(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.
How do auxin and cytokinin work together?
The cross-talk between cytokinin and auxin in the shoot and root meristem is highlighted in Figure 2. In the root meristem, auxin induces the meristematic cell division, whereas cytokinin promotes the cell to switch from the meristematic to differentiated state through inhibiting auxin signaling.
Can a cucumber plant have all female flowers?
Cucumber plants are not simply male or female. They can be seven different sexes, depending on a complex mix of genetic and environmental factors. Some high-yield cucumber varieties produce only female flowers, and a new study identifies the gene duplication that causes this unusual trait.
What is an all female cucumber?
Parthenocarpic cucumbers are cucumber varieties which don’t require pollination to produce cucumbers. Sometimes described as self-pollinating, this is technically not true; as unpollinated female flowers will still produce fruit, and because they are not pollinated, you also get seedless cucumbers.
How do cucumber plants encourage male flowers?
Cucumbers will fail to bloom when they lack energy. The leaves need to be green for photosynthesis, and the soil must be rich in nutrients. Adding blood meal to the soil boosts nitrogen and phosphorous. It needs high temperatures for male flowers and cooler temperatures for female flowers.
How do you turn a male flower into a female?
The stamens are the male reporeductive organs which must be removed in order to get the flower converted into female. Stamens are femoved on after the other wit hte help of a pair of forceps.
How will you increase the female flower production in cucurbits?
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.
Which hormone causes production of male flowers on female plants?
gibberellin
Gibberellic acid induce male flowers on female plants of Cannabis sativa. When exogenous gibberellin was induced in genetically female plants of Cannabis, there was marked stem elongation and production of male (staminate) flowers in gibberellin treated female plants of Cannabis.
How do you tell the difference between a male and female cucumber?
Inspect the bright yellow flowers growing on the cucumber plant. Look behind each flower for a small immature cucumber growing behind it. Female flowers have this immature bloom, known as an ovary, growing behind it, while male flowers do not. Male flowers grow on a thinner-looking stem.
How does ethylene increases productivity 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.
Which hormone induces Parthenocarpy in tomatoes?
auxin
Plant hormones such as auxin can induce parthenocarpy in various plants, including cucumber, tomato, and muskmelon (Mariotti et al., 2011). According to our results, exogenous MT can also induce parthenocarpy in pear.
How does ethephon increase the yield of cucumber?
By increasing the number of female flowers. By increasing the number of both male and female flowers.
What is the function of cytokinin?
Cytokinins are a group of plant growth regulators which are primarily involved in performing cell division in plant roots, shoot system. This hormone helps in promoting the cell’s growth, development, differentiation, affecting apical dominance and delay in leaf senescence.
What is the work of gibberellin?
The plant hormone gibberellin (GA) controls major aspects of plant growth such as germination, elongation growth, flower development, and flowering time.
What is common function of auxin and gibberellin?
Auxin and Gibberellin – Differences
| Auxin | Gibberellin |
|---|---|
| Auxin does not help in breaking seed and bud dormancy. | Gibberellin plays a major role in seed germination, breaking seed and bud dormancy. |
| Root Formation | |
| It promotes root formation. | It does not promote rooting. |
| Hormonal Effects |
What fertilizer is good for cucumbers?
When grown in pots, a 2-3-6 can provide all that your cucumbers need in their limited environment. In the ground, cucumbers would benefit from a 5-10-10 fertilizer. Or perhaps a 20-20-20, if your soil needs a little boost too.