Abstract
Global warming and consequent changes in climate will put intense pressure on crop production, undermining global food security. Adaptation strategies are needed to minimise the adverse impact of high temperature on crops, and physiological trait-based breeding is considered as a promising strategy in this regard. Identifying and assessing physiological traits associated with improved crop performance under warmer climatic conditions will assist physiological breeding programmes. In this context, it is vital to assess the role of transpiration in ameliorating leaf temperature as a potential heat avoidance strategy as the literature is limited and controversial. The complex relationship between transpiration, the physical environment, and plant anatomical and morpho-physiological attributes could explain the contrasting views on the role of transpiration in ameliorating leaf temperature. A comprehensive examination of transpiration and leaf cooling in relation to its controlling factors will assist in unravelling this complex relationship. This chapter discusses the different heat-dissipating mechanisms, the contribution of transpirational cooling as a heat avoidance strategy evidenced by previous research findings on different crops, the complex relationship of transpiration and leaf temperature with morpho-physiological attributes and environmental parameters, and the application of transpirational cooling in physiological breeding.
| Original language | English |
|---|---|
| Title of host publication | Translating Physiological Tools to Augment Crop Breeding |
| Editors | Harohalli Masthigowda Mamrutha, Gopalareddy Krishnappa, Rinki Khobra, Gyanendra Singh, Gyanendra Pratap Singh |
| Publisher | Springer Nature Singapore Pte Ltd |
| Chapter | 5 |
| Pages | 91-119 |
| Number of pages | 457 |
| Edition | 1 |
| ISBN (Electronic) | 978-981-19-7498-4 |
| ISBN (Print) | 9789811974977 |
| DOIs | |
| Publication status | Published - 19 Apr 2023 |
