Related Experiment Video
Updated: Jul 18, 2025

Forced Flowering in Mandarin Trees under Phytotron Conditions
Published on: March 6, 2019
Flower heterochrony and crop yield.
Marina M Strelin1, Pamela K Diggle2, Marcelo A Aizen1
1Grupo de Investigación en Ecología de la Polinización, Laboratorio Ecotono, INIBIOMA (CONICET - Universidad Nacional del Comahue), San Carlos de Bariloche, Río Negro, Argentina.
Understanding flower development timing (heterochrony) in crops and relatives can improve crop yield and hybrid variety creation. This approach considers plants as integrated systems for better food production.
Area of Science:
- Plant Science
- Developmental Biology
- Agriculture
Background:
- Traditional crop improvement uses a trait-centered approach, often overlooking plant developmental integration.
- This reductionist strategy may negatively impact food production by ignoring coordinated responses to genetic and environmental factors.
Purpose of the Study:
- To highlight the importance of flower heterochrony in crop improvement.
- To advocate for understanding the genetic and environmental factors influencing flower development timing, morphology, and sex.
Main Methods:
- The study is primarily a conceptual review and argument.
- It synthesizes existing knowledge on plant development, genetics, and environmental influences on floral traits.
Main Results:
- Crop yield and hybrid variety potential are significantly linked to flower morphology and sex.
- Flower heterochrony, shifts in developmental timing, profoundly impacts these floral characteristics.
Conclusions:
- A holistic approach, focusing on flower heterochrony, can enhance crop improvement strategies.
- Investigating flower development in crops and wild relatives offers new avenues for increasing food production.
Related Concept Videos
Chi-square Analysis
The chi-square test was developed by Pearson in 1990.
The first step of performing a Chi-square analysis is to establish a null hypothesis, which assumes that there is no real...
Trihybrid Crosses
Some of Mendel’s crosses examined three pairs of contrasting characteristics. Such a cross is called a trihybrid cross. A trihybrid cross is a combination of three individual monohybrid crosses. For example, plant height (tall vs. short), seed shape (round vs. wrinkled), and seed color (yellow vs. green).
The F1 generation plants of a trihybrid cross are heterozygous for all three traits and produce eight gametes. Upon self-fertilization, these gametes have an equal...
Monohybrid Crosses
Dihybrid Crosses
Incomplete Dominance
Biological Clocks and Seasonal Responses

