Effect of NH4+-N and NO3--N Ratio on the Growth and Quality of Bunching Onion under High Temperature Stress

2011 ◽  
Vol 366 ◽  
pp. 132-135
Author(s):  
Guang Wen Sun ◽  
Cai Yong Jiang ◽  
Hou Cheng Liu ◽  
Shi Wei Song ◽  
Ri Yuan Chen
Keyword(s):  
High Temperature ◽  
Vitamin C ◽  
Temperature Stress ◽  
Nitrate Concentration ◽  
Soluble Sugar ◽  
High Temperature Stress ◽  
Allium Fistulosum ◽  
Plant Weight ◽  
Bunching Onion

The effects of different NH4+-N to NO3--N ratio (NH4+ /NO3-) (0, 1/8, 1/4 and 1/2) on growth and quality of bunching onion (Allium fistulosum L. var. caespitosum Makino) under high temperature stress (34°C/26°C, day/night) were studied in growth chamber by hydroponics. The results showed that the growth and quality of bunching onion were affected by NH4+ /NO3-. Plant weight and height, leaf number per plant were the highest in the treatment which NH4+ /NO3- was 1/8, and those in treatment without NH4+-N were higher than in other 2 treatments. With the NH4+ /NO3- increasing, nitrate concentration in bunching onion decreased. The concentration of vitamin C was the highest in the treatment which NH4+ /NO3- was 1/8, while concentration of soluble sugar, soluble protein and allicin were the highest in the treatment which NH4+ /NO3-was 1/2. Thus the growth and quality of bunching onion were better in the NH4+ /NO3- range of 1/8 to 1/4.

Effect of high temperature stress on seed filling and nutritional quality of rice (Oryza sativa L.)

2020 ◽  
Vol 16 (2) ◽  
pp. 18-23
Author(s):  
K. PRAVALLIKA ◽  
C. ARUNKUMAR ◽  
A. VIJAYKUMAR ◽  
R. BEENA ◽  
V. G. JAYALEKSHMI
Keyword(s):  
Oryza Sativa ◽  
High Temperature ◽  
Temperature Stress ◽  
Nutritional Quality ◽  
High Temperature Stress ◽  
Seed Filling

scholarly journals The Effect of High-Temperature Stress Applied to the Root on Grain Quality of Rice

2012 ◽  
Vol 15 (4) ◽  
pp. 274-277 ◽  
Author(s):  
Ichiro Nagaoka ◽  
Hideki Sasahara ◽  
Akiko Shigemune ◽  
Akitoshi Goto ◽  
Kiyoyuki Miura
Keyword(s):  
High Temperature ◽  
Temperature Stress ◽  
Grain Quality ◽  
High Temperature Stress

Effect of Water Stress Induced by PEG on Growth and Quality of Bunching Onion

2011 ◽  
Vol 142 ◽  
pp. 116-119
Author(s):  
De Zhong Dong ◽  
Hou Cheng Liu ◽  
Shi Wei Song ◽  
Guang Wen Sun ◽  
Ri Yuan Chen
Keyword(s):  
Water Stress ◽  
Pyruvic Acid ◽  
Allium Fistulosum ◽  
Plant Weight ◽  
Effect Of Water ◽  
Shoot Ratio ◽  
Root Shoot Ratio ◽  
Total Plant ◽  
Bunching Onion

The effect of water stress on growth and quality of bunching onion（Allium fistulosum L. var. caespitosum Makino）was studied in hydroponics by PEG treatments (10%, 15%, 20%). The results showed that the growth of bunching onion was significantly affected by water stress induced by PEG. Plant height, pseudo-stem weight, total plant weight decreased with PEG concentration increased, the inhibitions in 10% PEG and 20% PEG were greater than in 15% PEG. The root/shoot ratio increased in PEG treatments. Concentrations of allicin and pyruvic acid significantly increased at 10, 17 days after PEG treatments. With PEG concentration increased, concentrations of soluble protein increased.

Effect of Nitrogen and Sulphur on the Growth and Qualities of Bunching Onion

2011 ◽  
Vol 366 ◽  
pp. 127-131 ◽  
Author(s):  
Hou Cheng Liu ◽  
Jun Ling Li ◽  
Shi Wei Song ◽  
Guang Wen Sun ◽  
Ri Yuan Chen
Keyword(s):  
Chlorophyll A ◽  
Soluble Protein ◽  
Soluble Sugar ◽  
Nitrogen Level ◽  
Allium Fistulosum ◽  
Total Chlorophyll ◽  
Bunching Onion ◽  
Better Than

Effects of nitrogen and sulphur [N3.75S0.35 (N 3.75 mmol/L, S 0.35mmol/L), N3.75S4.2(N 3.75 mmol/L, S 4.2mmol/L), N7.5S1.4(N 7.5 mmol/L, S 1.4mmol/L), N22.5S0.35(N 22.5 mmol/L, S 0.35mmol/L)] on the growth and quality of in bunching onion (Allium fistulosum L. var. caespeitosum Makino) were studied in hydroponics, in which the solution was Hoagland's. The results showed that the growth of bunching onion in N7.5S1.4 treatment was better than in other treatments. With nitrogen increasing, the growth of bunching onion enhanced at the same sulphur level, and the growth of bunching onion enhanced by sulphur increase at the same nitrogen level. Concentrations of chlorophyll a, b, total chlorophyll and carotenoid in N7.5S1.4 treatment were highest. With nitrogen and sulphur increasing, concentration of soluble protein and nitrate in bunching onion increased. While concentration of soluble sugar decreased with nitrogen increased.

scholarly journals Identification of a novel gene (Apq1) from the indica rice cultivar ‘Habataki’ that improves the quality of grains produced under high temperature stress

2014 ◽  
Vol 64 (4) ◽  
pp. 273-281 ◽  
Author(s):  
Kazumasa Murata ◽  
Yukihide Iyama ◽  
Takuya Yamaguchi ◽  
Hidenobu Ozaki ◽  
Yoshinori Kidani ◽  
...  
Keyword(s):  
High Temperature ◽  
Temperature Stress ◽  
Indica Rice ◽  
Rice Cultivar ◽  
High Temperature Stress ◽  
Novel Gene ◽  
Indica Rice Cultivar

scholarly journals Compensatory growth in Microcystis aeruginosa after moderate high-temperature exposure

2015 ◽  
Author(s):  
Wei Han ◽  
Yuanshu Jing ◽  
Ting Li
Keyword(s):  
High Temperature ◽  
Antioxidant Enzyme ◽  
Chlorophyll A ◽  
Temperature Stress ◽  
Enzyme Activities ◽  
Compensatory Growth ◽  
Soluble Sugar ◽  
Recovery Phase ◽  
High Temperature Stress ◽  
Antioxidant Enzyme Activities

<p align="left">This study aimed to investigate the mechanisms involved in <em>Microcystis aeruginosa</em> (<em>M. aeruginosa</em>) compensatory growth after moderate high-temperature stress. In the experiment, <em>M. aeruginosa</em> were cultured for 3, 6, and 12 d at 35°C before being transferred to normal conditions (25°C), and then cultured for 30 days for recovery. The algae that were cultured constantly at 25°C were set as control. The results showed that the growth of <em>M. aeruginosa</em> was inhibited significantly by the moderate high-temperature stress. During the recovery phase, the <em>M. aeruginosa</em> cultured at 35°C for 3, 6, and 12 days exhibited under-compensation, over-compensation, and equal-compensation, respectively. To cope with moderate high-temperature stress, <em>M. aeruginosa</em> implement various mechanisms, including increasing antioxidant enzyme activities and chlorophyll a content; adjusting compatible solutes (soluble protein and sugar). The <em>M. aeruginosa</em> cultured at 35°C for 6 days has higher antioxidant enzyme activities, relatively low malondialdehyde content, and higher soluble sugar content during the recovery phase; therefore, <em>M. aeruginosa</em> cultured at 35°C for 6 days exhibited over-compensation growth. Grey correlation analysis revealed that the increase of chlorophyll a, soluble sugar, and superoxide dismutase activity play key roles in the compensatory growth of <em>M. aeruginosa</em>.</p>

scholarly journals Metabolomics Profiling of Brassinolide and Abscisic Acid In Response to High Temperature Stress

2021 ◽  
Author(s):  
Jinhua Lv ◽  
Tianyu Dong ◽  
Yanping Zhang ◽  
Yu Ku ◽  
Ting Zheng ◽  
...  
Keyword(s):  
Amino Acids ◽  
Abscisic Acid ◽  
High Temperature ◽  
Temperature Stress ◽  
Sugar Content ◽  
Soluble Sugar ◽  
Middle Lamella ◽  
High Temperature Stress ◽  
Grape Quality ◽  
Temperature Damage

Abstract To determine the effect of abscisic acid (ABA), brassinolide (BR) and ABA+BR on grape quality under high temperature stress (HTS), various metabolites were analyzed. Compared with the control (CK), DL-tryptophan, D-raffinose, geniposidic acid, dodecanedioic acid and polyphenols were found to be higher after ABA treatment. After BR treatment, amino acids and poricoic acid B were higher than in CK. And carbohydrates and amino acids were upregulated after ABA+BR treatment. BR and ABA+BR treatment also induced higher endogenous ABA and epibrassinolide (EBR) contents. In addition, treated grape had higher soluble solid concentrations (SSC) and soluble sugar content, and delayed the degradation of middle lamella and microfibrils. Antioxidant and heat shock related genes were examined, which significantly increased in treated grape. The finding of this study suggested that ABA, BR and ABA+BR are very useful for alleviating high temperature damage by increasing the accumulation of osmotic adjustment substances, and endogenous hormones content.

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