A plant breeder wants to obtain a superior quality maize crop . what are the sequence of events he must follow to pollination the maize flowers with chosen pollen ?

Options

A. Bagging `rarr` Dusting of pollen `rarr` Rebagging
B. Bagging `rarr` Emasculation `rarr` Dusting of pollen `rarr` Rebagging
C. Emasculation `rarr` Bagging `rarr` Dusting of pollen `rarr` Rebagging
D. Bagging `rarr` Dusting of pollen `rarr` Emasculation `rarr` Rebagging

Answer

To achieve superior quality maize crops through controlled pollination, a plant breeder must follow a specific sequence of events. Here’s a step-by-step solution:

### Step-by-Step Solution:

1. **Selection of Parent Plants**:
- The breeder must first select the superior quality maize plants that exhibit desirable traits, such as high yield, disease resistance, or better nutritional quality.

**Hint**: Choose parent plants based on the traits you want to enhance in the offspring.

2. **Bagging the Female Flowers**:
- The next step is to cover the flowers of the selected female parent with a bag (usually made of a breathable material). This prevents any unwanted pollen from other plants from contaminating the stigma.

**Hint**: Bagging is crucial to ensure that only the desired pollen will fertilize the flower.

3. **Collecting Pollen from Male Parent**:
- Once the female flowers are bagged, the breeder collects pollen from the chosen male parent plant. This pollen is what will be used for fertilization.

**Hint**: Ensure that the pollen is fresh and viable for successful fertilization.

4. **Dusting the Pollen onto the Stigma**:
- After collecting the pollen, the breeder carefully dusts the pollen from the selected male parent onto the stigma of the bagged female flower. This step is critical as it introduces the desired genetic material.

**Hint**: Be gentle while dusting to avoid damaging the flower.

5. **Re-bagging the Female Flowers**:
- After pollination, the breeder re-bags the female flowers to protect them as they develop into fruit. This helps ensure that no foreign pollen can interfere with the fertilization process.

**Hint**: Re-bagging helps in maintaining the integrity of the breeding experiment.

6. **Harvesting and Evaluating Offspring**:
- Once the fruits develop and mature, the breeder can harvest the seeds and evaluate the offspring for the desired traits. This evaluation will determine if the breeding was successful.

**Hint**: Assess the traits of the offspring to see if they meet the desired improvements.

### Summary:
The sequence of events for pollinating maize flowers with chosen pollen involves selecting superior parent plants, bagging the female flowers, collecting pollen from the male parent, dusting the pollen onto the stigma, re-bagging the flowers, and finally harvesting and evaluating the offspring.