scholarly journals EVALUATION OF HEAT TOLERANCE INDEX, SUSCEPTIBILITY INDEX OF CANOPY TEMPERATURE AND LEAF CHLOROPHYLL CONTENT OF WHEAT (TRITICUM AESTIVUM L.)

2019 ◽  
Vol 17 (4) ◽  
Author(s):  
Q LI
Keyword(s):  
Triticum Aestivum ◽  
Chlorophyll Content ◽  
Heat Tolerance ◽  
Canopy Temperature ◽  
Triticum Aestivum L ◽  
Tolerance Index ◽  
Leaf Chlorophyll Content ◽  
Susceptibility Index ◽  
Leaf Chlorophyll ◽  
Heat Tolerance Index

scholarly journals Evaluation of exotic wheat (Triticum aestivum L.) genotypes for heat tolerance on the basis of physiological phenotyping

2018 ◽  
Vol 16 (3) ◽  
pp. 457-463
Author(s):  
Kaji Md. Wayaz Hossain ◽  
Sharif Ar Raffi
Keyword(s):  
Grain Yield ◽  
Chlorophyll Content ◽  
Heat Tolerance ◽  
Canopy Temperature ◽  
Grain Weight ◽  
Leaf Chlorophyll Content ◽  
Leaf Chlorophyll ◽  
Canopy Temperature Depression ◽  
Membrane Thermostability ◽  
Temperature Depression

Plant physiological parameters such as membrane thermostability, canopy temperature depression, leaf chlorophyll content and yield related traits like no. of spikelets per spike, no. of grains per spike, 200-grain weight and grain yield of 18 wheat genotypes were carried out to assess for heat tolerance. Performances of all the genotypes were found to have significant differences for all the traits except canopy temperature depression. But, canopy temperature depression with some other traits like leaf chlorophyll content, no. of grains per spike, 200-grain weight and grain yield per plant demonstrated significant differences when it grown in heat stress condition. In general, genotypes with higher leaf chlorophyll content and enhanced membrane thermostability demonstrated higher 200-grain weight or grain yield. Besides, in spite of having heat tolerant traits, several genotypes performed poor due to their poor genotypic potential. The present investigation has successfully isolated several genotypes viz. H024, H023, H022 and H018 with desirable traits related to heat tolerance based on overall performance while grown under heat stress. These genotypes can be used as gene source for future breeding program to improve heat tolerance of the local wheat cultivars. J. Bangladesh Agril. Univ. 16(3): 457–463, December 2018

scholarly journals Evaluation of bread wheat (Triticum aestivum L.) for terminal heat tolerance

2020 ◽  
Vol 80 (04) ◽  
Author(s):  
Stuti Krishna ◽  
Priyanka Upadhayay ◽  
Vinod Mishra ◽  
Shubhra Kujur ◽  
Monu Kumar ◽  
...  
Keyword(s):  
Cluster Analysis ◽  
Triticum Aestivum ◽  
Heat Tolerance ◽  
Canopy Temperature ◽  
Hierarchical Cluster ◽  
Triticum Aestivum L ◽  
Wheat Breeding ◽  
Plot Yield ◽  
Days To Heading ◽  
Heat Tolerant

Terminal heat tolerance of 34 wheat genotypes were analyzed for two years. Among 14 traits, canopy temperature, plot yield and days to heading were major components in clustering of genotypes. Three genotypes viz., DBW39, DBW16 and DBW14 had lowest HSI (0.34-0.36) for plot yield and were considered as heat tolerant genotypes by, both, HCA (Hierarchical Cluster Analysis) as well as DA (Discriminant Analysis). These genotypes may serve as potential donors in wheat breeding to improve the terminal heat tolerance.

scholarly journals RIL-StEp: epistasis analysis of rice recombinant inbred lines (RILs) reveals candidate interacting genes that control seed hull color and leaf chlorophyll content

2021 ◽  
Author(s):  
Toshiyuki Sakai ◽  
Akira Abe ◽  
Motoki Shimizu ◽  
Ryohei Terauchi
Keyword(s):  
Chlorophyll Content ◽  
Recombinant Inbred ◽  
Complex Traits ◽  
Genetic Architecture ◽  
Recombinant Inbred Lines ◽  
Inbred Lines ◽  
Gene Interactions ◽  
Leaf Chlorophyll Content ◽  
Leaf Chlorophyll ◽  
Seed Hull

Abstract Characterizing epistatic gene interactions is fundamental for understanding the genetic architecture of complex traits. However, due to the large number of potential gene combinations, detecting epistatic gene interactions is computationally demanding. A simple, easy-to-perform method for sensitive detection of epistasis is required. Due to their homozygous nature, use of recombinant inbred lines (RILs) excludes the dominance effect of alleles and interactions involving heterozygous genotypes, thereby allowing detection of epistasis in a simple and interpretable model. Here, we present an approach called RIL-StEp (recombinant inbred lines stepwise epistasis detection) to detect epistasis using single nucleotide polymorphisms in the genome. We applied the method to reveal epistasis affecting rice (Oryza sativa) seed hull color and leaf chlorophyll content and successfully identified pairs of genomic regions that presumably control these phenotypes. This method has the potential to improve our understanding of the genetic architecture of various traits of crops and other organisms.

Variability of Leaf Chlorophyll Content in a Population of Sassafras

1990 ◽  
Vol 117 (2) ◽  
pp. 167 ◽  
Author(s):  
Amrita G. de Soyza ◽  
Dwight T. Kincaid ◽  
Carlos R. Ramirez
Keyword(s):  
Chlorophyll Content ◽  
Leaf Chlorophyll Content ◽  
Leaf Chlorophyll
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