REACTION OF BARLEY VARIETIES TO SOIL WATER STRESS

1966 ◽  
Vol 46 (5) ◽  
pp. 507-512 ◽  
Author(s):  
S. A. Wells ◽  
S. Dubetz
Keyword(s):  
Water Stress ◽  
Protein Content ◽  
Soil Water ◽  
Soil Types ◽  
Soil Water Stress ◽  
Boot Stage ◽  
Ripening Stages ◽  
Stage Yield ◽  
Dough Stage ◽  
Number Of Seeds

Varietal differences in reaction to soil water stress of 8 bars were demonstrated in the greenhouse on each of two different soil types. The effects of stress on grain yield and protein content were greater at the early boot stage than at the soft dough stage and they were greater at the soft dough stage than at the onset of tillering or ripening stages. The lower yields of Betzes and Hannchen resulting from stress at the early boot stage were due mainly to a decrease in number of seeds per spike. Protein content of the two varieties was increased by stress at this stage. Yield and protein content of Compana were not appreciably affected. The ratio of water used to grain produced was essentially the same for each variety but was higher on Cavendish than on Lethbridge soil and was directly related to stage of stress.

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.

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.

Simulating the Influences of Soil Water Stress on Leaf Expansion and Senescence of Winter Wheat

2020 ◽  
Vol 291 ◽  
pp. 108061 ◽  
Author(s):  
Tengcong Jiang ◽  
Zihe Dou ◽  
Jian Liu ◽  
Yujing Gao ◽  
Robert W. Malone ◽  
...  
Keyword(s):  
Water Stress ◽  
Winter Wheat ◽  
Soil Water ◽  
Leaf Expansion ◽  
Soil Water Stress

Nutrient shift in Parthenocissus tricuspidata seedling in response to soil water stress

2009 ◽  
Vol 123 (2) ◽  
pp. 253-257 ◽  
Author(s):  
Zhong Qiang Wang ◽  
Liang Huan Wu ◽  
Sarkar Animesh
Keyword(s):  
Water Stress ◽  
Soil Water ◽  
Soil Water Stress ◽  
Parthenocissus Tricuspidata

Effects of soil water stress on fruit yield, quality and their relationship with sugar metabolism in ‘Gala’ apple

2019 ◽  
Vol 258 ◽  
pp. 108753 ◽  
Author(s):  
Yuanji Wang ◽  
Li Liu ◽  
Ying Wang ◽  
Hongxia Tao ◽  
Junliang Fan ◽  
...  
Keyword(s):  
Water Stress ◽  
Soil Water ◽  
Sugar Metabolism ◽  
Fruit Yield ◽  
Soil Water Stress ◽  
Yield Quality
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