Heat stress affects floral morphology, silique set and seed quality in chamber and field grown winter canola

2021 ◽  
Author(s):  
Meghnath Pokharel ◽  
Michael Stamm ◽  
Nathan T. Hein ◽  
Krishna S. V. Jagadish
Keyword(s):  
Heat Stress ◽  
Seed Quality ◽  
Floral Morphology ◽  
Winter Canola

Heat stress lowers yields, alters nutrient uptake and changes seed quality in quinoa grown under Mediterranean field conditions

2021 ◽  
Author(s):  
Javier Matías ◽  
María José Rodríguez ◽  
Verónica Cruz ◽  
Patricia Calvo ◽  
María Reguera
Keyword(s):  
Heat Stress ◽  
Nutrient Uptake ◽  
Seed Quality ◽  
Field Conditions

Heat stress during seed development affects forage brassica (Brassica napus L.) seed quality

2017 ◽  
Vol 204 (2) ◽  
pp. 147-154 ◽  
Author(s):  
M. Rashid ◽  
J. G. Hampton ◽  
M. P. Rolston ◽  
K. M. Khan ◽  
D. J. Saville
Keyword(s):  
Heat Stress ◽  
Brassica Napus ◽  
Seed Development ◽  
Seed Quality ◽  
Brassica Napus L

Impact of heat stress during seed filling on seed quality and seed yield in lentil (Lens culinaris Medikus) genotypes

2018 ◽  
Vol 98 (13) ◽  
pp. 5134-5141 ◽  
Author(s):  
Kumari Sita ◽  
Akanksha Sehgal ◽  
Kalpna Bhandari ◽  
Jitendra Kumar ◽  
Shiv Kumar ◽  
...  
Keyword(s):  
Heat Stress ◽  
Seed Yield ◽  
Lens Culinaris ◽  
Seed Quality ◽  
Seed Filling

Effect of heat stress during seed development and maturation on wheat (Triticum durum) seed quality. I. Seed germination and seedling vigor

1995 ◽  
Vol 75 (4) ◽  
pp. 821-829 ◽  
Author(s):  
L. Grass ◽  
J. S. Burris
Keyword(s):  
Heat Stress ◽  
High Temperature ◽  
Seed Germination ◽  
Oxygen Uptake ◽  
Seed Development ◽  
Seed Quality ◽  
Seed Vigor ◽  
Growth Potential ◽  
Cool Temperature ◽  
Temperature Conditions

Two wheat cultivars, Marzak and Oum-rabia, were subjected to three temperature regimes (20/15, 28/21, 36/29 °C) beginning 10 d after anthesis to maturity. As expected, high temperature resulted in low values of both seed yield and physical traits of seed quality. The effect of temperature on seed germination was not consistent among the two cultivars. High temperature during seed development and maturity had no effect on seed germination of Oum-rabia, whereas it decreased seed germination of Marzak. In contrast to seed germination, seed vigor was adversely affected by heat stress. This decline in seed vigor was reflected in reduced shoot and root dry weight, increased shoot/root ratio, reduced root length, low root number per seedling, and high seed conductivity. Excised embryo culture showed marked differences in the embryo growth potential. Although embryos from all treatments had germinated, a delay of 24–48 h was observed in the germination of embryos excised from seeds grown under high temperature conditions. Also, their shoot and radicle development over time lagged behind that of embryos isolated from seeds grown under cool temperature conditions. Exposing seeds to high temperature during development and maturity also resulted in low embryo oxygen uptake. Results presented in this study show that the growing conditions, in this instance temperature, of the parent plant affect the quality of its seed. Key words: Embryo, germination, oxygen uptake, vigor, wheat, high temperature

Forage rape (Brassica napus L) seed quality: Impact of heat stress in the field during seed development

2018 ◽  
Vol 217 ◽  
pp. 172-179 ◽  
Author(s):  
Muhammad Rashid ◽  
John G. Hampton ◽  
M. Phil Rolston ◽  
Jason A.K. Trethewey ◽  
David J. Saville
Keyword(s):  
Heat Stress ◽  
Brassica Napus ◽  
Seed Development ◽  
Seed Quality ◽  
Brassica Napus L ◽  
Forage Rape

scholarly journals Yield and seed quality parameters of common bean cultivars grown under water and heat stress field conditions

2019 ◽  
Vol 4 (2) ◽  
pp. 285-302 ◽  
Author(s):  
Panagiota Kazai ◽  
◽  
Christos Noulas ◽  
Ebrahim Khah ◽  
Dimitrios Vlachostergios ◽  
...  
Keyword(s):  
Heat Stress ◽  
Stress Field ◽  
Common Bean ◽  
Seed Quality ◽  
Quality Parameters ◽  
Field Conditions

scholarly journals Spermidine Induces Expression of Stress Associated Proteins (SAPs) Genes and Protects Rice Seed from Heat Stress-Induced Damage during Grain-Filling

Antioxidants ◽  
2021 ◽  
Vol 10 (10) ◽  
pp. 1544
Author(s):  
Min Chen ◽  
Yuying Fu ◽  
Qingshan Mou ◽  
Jianyu An ◽  
Xiaobo Zhu ◽  
...  
Keyword(s):  
Heat Stress ◽  
High Temperature ◽  
Seed Germination ◽  
Heat Resistance ◽  
Seed Quality ◽  
Grain Filling ◽  
Rice Seed ◽  
Associated Proteins ◽  
Mda Content ◽  
Grain Filling Stage

Heat stress during seed maturation significantly reduced seed size and quality. Polyamines, especially spermidine (Spd), were reported to be closely related to seed development and plant heat tolerance. Stress-associated proteins (SAPs) also played a critical role in plant heat resistance, but the relationship between Spd and SAPs in improving rice tolerance to heat stress during grain filling has not been reported. Our results showed that the external spraying Spd (1.5 mM) significantly increased seed germination rate, germination index, vigor index and 1000-grain weight, significantly increased endogenous Spd, spermine (Spm) content and peroxidase activity; significantly reduced MDA content; and greatly alleviated the impact of heat stress on rice seed quality during grain filling stage as compared with high temperature control. OsSAP5 was the most upregulated expression induced by Spd, and may be mainly involved in the Spd-mediated enhancement of high-temperature resistance during rice seed development. Overexpression of OsSAP5 in Arabidopsis enhanced 1000-grain weight and seed heat resistance. Exogenous Spd alleviated the survival rate and seedling length, reduced MDA content, and upregulated the expression levels of SPDS and SPMS in Atsap4 mutant under high temperature during seed germination. In all, exogenous Spd alleviated the heat damage on seed quality during the grain filling stage and seed germination stage by improving endogenous Spd and Spm. OsSAP5, a key gene induced by Spd, might be involved in the rice heat resistance and seed quality in coordination with Spd and Spm.

scholarly journals Impact of Late‐Season Herbicide Applications on Winter Canola Yield and Seed Quality

age ◽  
2019 ◽  
Vol 2 (1) ◽  
pp. 1-7
Author(s):  
Victor R. Bodnar ◽  
Josh Lofton ◽  
Misha R. Manuchehri ◽  
Anna D. Zander
Keyword(s):  
Seed Quality ◽  
Winter Canola ◽  
Late Season
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