Changes in leaf epicuticular wax load and its effect on leaf temperature and physiological traits in wheat cultivars (Triticum aestivumL.) exposed to high temperatures during anthesis

2017 ◽  
Vol 204 (1) ◽  
pp. 49-61 ◽  
Author(s):  
T. D. Huggins ◽  
S. Mohammed ◽  
P. Sengodon ◽  
A. M. H. Ibrahim ◽  
M. Tilley ◽  
...  
Keyword(s):  
High Temperatures ◽  
Epicuticular Wax ◽  
Leaf Temperature ◽  
Physiological Traits ◽  
Wheat Cultivars ◽  
Leaf Epicuticular Wax ◽  
Wax Load

The Role of Leaf Epicuticular Wax in the Adaptation of Wheat ( Triticum aestivum L.) to High Temperatures and Moisture Deficit Conditions

Crop Science ◽  
2018 ◽  
Vol 58 (2) ◽  
pp. 679-689 ◽  
Author(s):  
Suheb Mohammed ◽  
Trevis D. Huggins ◽  
Francis Beecher ◽  
Chris Chick ◽  
Padma Sengodon ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
High Temperatures ◽  
Triticum Aestivum L ◽  
Epicuticular Wax ◽  
Moisture Deficit ◽  
Leaf Epicuticular Wax

Role of Leaf Epicuticular Wax Load and Composition against Whitefly Population and Cotton Leaf Curl Virus in Different Cotton Varieties

2020 ◽  
Vol 54 (5) ◽  
pp. 472-486
Author(s):  
Muhammad Umair Majid ◽  
Zunaira Sher ◽  
Bushra Rashid ◽  
Qurban Ali ◽  
Muhammad Bilal Sarwar ◽  
...  
Keyword(s):  
Epicuticular Wax ◽  
Cotton Leaf ◽  
Whitefly Population ◽  
Cotton Leaf Curl Virus ◽  
Leaf Epicuticular Wax ◽  
Leaf Curl Virus ◽  
Wax Load ◽  
Leaf Curl

scholarly journals Effect of leaf temperature on the estimation of photosynthetic and other traits of wheat leaves from hyperspectral reflectance

2020 ◽  
Author(s):  
Hammad A Khan ◽  
Yukiko Nakamura ◽  
Robert T Furbank ◽  
John R Evans
Keyword(s):  
Leaf Traits ◽  
Leaf Temperature ◽  
Physiological Traits ◽  
Leaf Mass Per Area ◽  
Hyperspectral Reflectance ◽  
Wheat Varieties ◽  
Unit Leaf ◽  
Temperature Signal ◽  
Wheat Leaves ◽  
Nitrogen Contents

Abstract A growing number of leaf traits can be estimated from hyperspectral reflectance data. These include structural and compositional traits, such as leaf mass per area (LMA) and nitrogen and chlorophyll content, but also physiological traits such a Rubisco carboxylation activity, electron transport rate, and respiration rate. Since physiological traits vary with leaf temperature, how does this impact on predictions made from reflectance measurements? We investigated this with two wheat varieties, by repeatedly measuring each leaf through a sequence of temperatures imposed by varying the air temperature in a growth room. Leaf temperatures ranging from 20 °C to 35 °C did not alter the estimated Rubisco capacity normalized to 25 °C (Vcmax25), or chlorophyll or nitrogen contents per unit leaf area. Models estimating LMA and Vcmax25/N were both slightly influenced by leaf temperature: estimated LMA increased by 0.27% °C–1 and Vcmax25/N increased by 0.46% °C–1. A model estimating Rubisco activity closely followed variation associated with leaf temperature. Reflectance spectra change with leaf temperature and therefore contain a temperature signal.

Wheat flag leaf epicuticular wax morphology and composition in response to moderate drought stress are revealed by SEM, FTIR-ATR and synchrotron X-ray spectroscopy

2017 ◽  
Vol 162 (3) ◽  
pp. 316-332 ◽  
Author(s):  
Ian R. Willick ◽  
Rachid Lahlali ◽  
Perumal Vijayan ◽  
David Muir ◽  
Chithra Karunakaran ◽  
...  
Keyword(s):  
Drought Stress ◽  
Flag Leaf ◽  
Epicuticular Wax ◽  
X Ray ◽  
Moderate Drought ◽  
Leaf Epicuticular Wax

Leaf Epicuticular Wax

2020 ◽  
pp. 121-123
Author(s):  
Humberto Gonzaález Rodríguez ◽  
Ratikanta Maiti ◽  
Ch. Aruna Kumari
Keyword(s):  
Epicuticular Wax ◽  
Leaf Epicuticular Wax

Impact of Exogenous Plant Growth Regulators on Physiological Traits, Tendril and Flowering in Horsegram (Macrotyloma uniflorum Lam) under Kharif Season 

2021 ◽  
Author(s):  
R. Sivakumar
Keyword(s):  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Foliar Application ◽  
Leaf Temperature ◽  
Physiological Traits ◽  
Mepiquat Chloride ◽  
Kharif Season ◽  
Significant Difference ◽  
The Impact

Background: Horsegram is an important pulse crop grown as Rabi crop in Tamil Nadu. Kharif sown crop could not flowers may be because of more number of tendrils produced as compare to Rabi sown crop. Hence, an attempt was made to reduce the number of tendrils and induce flowering in horsegram during Kharif season by plant growth regulators. Methods: A field experiment was conducted to study the impact of plant growth regulators viz., salicylic acid (100 ppm), chlormequat chloride (CCC - 250 ppm), mepiquat chloride (250 ppm), tri iodo benzoic acid (TIBA - 200 ppm) and nitrobenzene (0.2%) on physiological traits and tendril growth associated with flowering in horsegram during Kharif. Different treatments were applied through foliar application at 25 Days after sowing. Result: Among the PGRs, foliar application of TIBA registered the lowest number of tendrils (2.3) followed by CCC (3.0) compared to other treatments. Higher root length of 16.8 cm and RWC of 82.3% was found in CCC treatment. CCC also registered the highest photosynthetic rate (27.15 µmol m-2 s-1), transpiration rate (18.06 mmol m-2 s-1) and lowest leaf temperature (26°C) compared to other treatments. The highest soluble protein content of 13.1 mg g-1 was also estimated in CCC treatment followed by mepiquat chloride (12.51 mg g-1). Sucrose phosphate synthase (SPS) activity did not show any significant difference between the treatments. Number of flowers buds formed per plant was zero and hence the flowering did not take place in any treatments. Among the plant growth regulators used, TIBA and CCC registered its positive action on reduced the number of tendrils and leaf temperature, but not enough to induce flowering under Kharif season.

Sign in / Sign up

Export Citation Format

Share Document