TERMINAL DROUGHT AND SUBSOIL BORON ON BARLEY ROOT GROWTH AND WATER USE—AN EXAMINATION OF POSSIBLE INTERACTIONS

2001 ◽  
Vol 32 (3-4) ◽  
pp. 379-387 ◽  
Author(s):  
Sui-Kwong Yau
Keyword(s):  
Root Growth ◽  
Water Use ◽  
Barley Root ◽  
Terminal Drought

The causes for barley root growth retardation in the presence of ammonium and glutamate

2011 ◽  
Vol 58 (2) ◽  
pp. 307-315 ◽  
Author(s):  
O. V. Skobeleva ◽  
I. N. Ktitorova ◽  
K. G. Agal’tsov
Keyword(s):  
Root Growth ◽  
Growth Retardation ◽  
Barley Root

Plant population studies on peanut (Arachis hypogaea L.) in subtropical Australia. 3. Growth and water use during a terminal drought stress

1992 ◽  
Vol 32 (2) ◽  
pp. 197 ◽  
Author(s):  
GC Wright ◽  
MJ Bell
Keyword(s):  
Water Use ◽  
Reproductive Potential ◽  
Plant Population ◽  
High Density ◽  
Low Density ◽  
Crop Water ◽  
Water Deficits ◽  
Pod Yield ◽  
Terminal Drought ◽  
Terminal Drought Stress

Two peanut cultivars of different botanical type (Virginia and Spanish) were grown at 3 plant population densities (40000, 120000 and 240000 plants/ha) and relied solely on stored soil water in a deep kraznozem soil for water requirements. Protracted crop water deficits occurred from flowering to maturity. Plant population influenced both the temporal and spatial patterns of water use, with high density crops extracting water from lower depths sooner than low density crops. Higher water use prior to early podfilling in high density crops was associated with more rapid leaf area development. Reproductive development was strongly influenced by plant population density, with more pods per m2 in low than in high density crops. Lower leaf water potential and individual leaf photosynthetic rates in the middle of the day during the pegging and early podding phase suggested that high crop water deficits had lowered assimilate availability and reduced reproductive potential in high, compared with low, density crops. The results indicate that there is scope for increasing pod yield when peanut is growing solely on stored water, by reducing plant population. The timing of water use, as distinct from the amount of water used, was the major determinant of pod yield.

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