Nutritional imbalance in wheat (Triticum aestivum L.) genotypes grown at soil water stress

1998 ◽  
Vol 20 (3) ◽  
pp. 307-311 ◽  
Author(s):  
M. Yasin Ashraf ◽  
S. A. Ala ◽  
A. Saeed Bhatti
Keyword(s):  
Triticum Aestivum ◽  
Water Stress ◽  
Soil Water ◽  
Triticum Aestivum L ◽  
Soil Water Stress ◽  
Nutritional Imbalance

EFFECTS OF MOISTURE STRESS AT EARLY HEADING AND OF NITROGEN FERTILIZER ON THREE SPRING WHEAT CULTIVARS

1973 ◽  
Vol 53 (1) ◽  
pp. 1-5 ◽  
Author(s):  
S. DUBETZ ◽  
J. B. BOLE
Keyword(s):  
Water Stress ◽  
Soil Water ◽  
Spring Wheat ◽  
High Stress ◽  
Moisture Stress ◽  
Triticum Aestivum L ◽  
Kernel Weight ◽  
Soil Water Stress ◽  
Boot Stage ◽  
Four Levels

Three cultivars of spring wheat (Triticum aestivum L.) were grown at four levels of N fertilizer in metal lysimeters protected from rain by an automatic rain shelter. A soil water stress of 8 bars was developed in one-half of the lysimeters at the early boot stage. Water stress reduced yield by severely decreasing the number of kernels per spike. Tillering was not affected and kernel weight was increased. Pitic 62 withstood the high stress better than Manitou or Kenhi. N enhanced yield by increasing tillering. Kernel weight was unaffected by N, and the number of kernels per spike was decreased. Pitic, which had a higher number of kernels per spike, outyielded Manitou and Kenhi. The protein content of Manitou was higher than that of the other two cultivars. The cultivars differed in their reaction to soil water stress and N.

Effect of Soil Water Stress and Soil Temperature on Translocation of Diuron

Weed Science ◽  
1969 ◽  
Vol 17 (3) ◽  
pp. 304-306 ◽  
Author(s):  
R. H. Sedgley ◽  
L. Boersma
Keyword(s):  
Triticum Aestivum ◽  
Water Stress ◽  
Relative Humidity ◽  
Light Intensity ◽  
Soil Temperature ◽  
Soil Water ◽  
Air Temperature ◽  
Soil Water Stress ◽  
Air Movement ◽  
Rate Of Photosynthesis

Rates of photosynthesis, respiration, and transpiration of wheat (Triticum aestivum L., var. Gaines) were determined as functions of time, under controlled conditions of moderate soil water stress and soil temperature, after treatment of the roots with 3-(3,4-dichlorophenyl)-1,1-dimethylurea (diuron). Air temperature, relative humidity, light intensity, and air movement were maintained constant. The rate of photosynthesis declined with time for all plants treated with diuron but not for the controls. No change in the rate of respiration was detected. The rate of transpiration decreased slightly immediately upon application of the diuron and then remained constant. The data indicate that soil temperature and soil water stress play important roles in the herbicidal action of diuron applied to the soil.

scholarly journals Potassium Application Positively Modulates Physiological Responses of Cocoa Seedlings to Drought Stress

Agronomy ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 563
Author(s):  
Esther Anokye ◽  
Samuel T. Lowor ◽  
Jerome A. Dogbatse ◽  
Francis K. Padi
Keyword(s):  
Water Stress ◽  
Soil Water ◽  
Chlorophyll Content ◽  
Electrolyte Leakage ◽  
Seedling Survival ◽  
Biomass Accumulation ◽  
Biomass Partitioning ◽  
Chlorophyll Content And Fluorescence ◽  
Physiological Functions ◽  
Soil Water Stress

With increasing frequency and intensity of dry spells in the cocoa production zones of West Africa, strategies for mitigating impact of water stress on cocoa seedling survival are urgently required. We investigated the effects of applied potassium on biomass accumulation, physiological processes and survival of cocoa varieties subjected to water stress in pot experiments in a gauzehouse facility. Four levels of potassium (0, 1, 2, or 3 g/plant as muriate of potash) were used. Soil water stress reduced plant biomass accumulation (shoot and roots), relative water content (RWC), chlorophyll content and fluorescence. Leaf phenol and proline contents were increased under water stress. Additionally, compared to the well-watered conditions, soils under water stress treatments had higher contents of exchangeable potassium and available phosphorus at the end of the experimental period. Potassium applied under well-watered conditions reduced leaf chlorophyll content and fluorescence and increased leaf electrolyte leakage, but improved the growth and integrity of physiological functions under soil water stress. Potassium addition increased biomass partitioning to roots, improved RWC and leaf membrane stability, and significantly improved cocoa seedling survival under water stress. Under water stress, the variety with the highest seedling mortality accumulated the highest contents of phenol and proline. A significant effect of variety on plant physiological functions was observed. Generally, varieties with PA 7 parentage had higher biomass partitioning to roots and better seedling survival under soil moisture stress. Proportion of biomass partitioned to roots, RWC, chlorophyll fluorescence and leaf electrolyte leakage appear to be the most reliable indicators of cocoa seedling tolerance to drought.

Comparative analysis of water stress-responsive transcriptomes in drought-susceptible and -tolerant wheat (Triticum aestivum L.)

2012 ◽  
Vol 55 (5) ◽  
pp. 349-360 ◽  
Author(s):  
Yong Chun Li ◽  
Fan Rong Meng ◽  
Chun Yan Zhang ◽  
Ning Zhang ◽  
Ming Shan Sun ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Comparative Analysis ◽  
Water Stress ◽  
Triticum Aestivum L
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