Effects of biochar amendment and reduced irrigation on growth, physiology, water-use efficiency and nutrients uptake of tobacco (Nicotiana tabacum L.) on two different soil types

2021 ◽  
Vol 770 ◽  
pp. 144769
Author(s):  
Xuezhi Liu ◽  
Zhenhua Wei ◽  
Yingying Ma ◽  
Jie Liu ◽  
Fulai Liu
Keyword(s):  
Nicotiana Tabacum ◽  
Water Use Efficiency ◽  
Water Use ◽  
Soil Types ◽  
Growth Physiology ◽  
Nicotiana Tabacum L ◽  
Nutrients Uptake ◽  
Use Efficiency ◽  
Biochar Amendment

scholarly journals Improved water use efficiency and shorter life cycle of Nicotiana tabacum due to modification of guard and vascular companion cells

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Gabriela L. Müller ◽  
María V. Lara ◽  
Pablo Oitaven ◽  
Carlos S. Andreo ◽  
Verónica G. Maurino ◽  
...  
Keyword(s):  
Life Cycle ◽  
Nicotiana Tabacum ◽  
Water Use Efficiency ◽  
Water Use ◽  
Companion Cells ◽  
Use Efficiency

Overexpression of an aquaglyceroporin gene from Trichoderma harzianum improves water-use efficiency and drought tolerance in Nicotiana tabacum

2017 ◽  
Vol 121 ◽  
pp. 38-47 ◽  
Author(s):  
Pabline Marinho Vieira ◽  
Mirella Pupo Santos ◽  
Cristiana Moura Andrade ◽  
Otacílio Antônio Souza-Neto ◽  
Cirano José Ulhoa ◽  
...  
Keyword(s):  
Nicotiana Tabacum ◽  
Drought Tolerance ◽  
Water Use Efficiency ◽  
Water Use ◽  
Trichoderma Harzianum ◽  
Use Efficiency

Row spacing fails to modify soil evaporation and grain yield in spring wheat in a dry Mediterranean environment

1993 ◽  
Vol 44 (4) ◽  
pp. 661 ◽  
Author(s):  
IAM Yunusa ◽  
RK Belford ◽  
D Tennant ◽  
RH Sedgley
Keyword(s):  
Solar Radiation ◽  
Grain Yield ◽  
Water Use Efficiency ◽  
Water Use ◽  
Ground Cover ◽  
Soil Types ◽  
Row Spacing ◽  
Crop Canopy ◽  
Mediterranean Environment ◽  
Use Efficiency

The loss of moisture by evaporation from soil under crop canopies (Esc) has been recognized as a major cause of poor water use efficiency (WUE), and hence poor grain yield, in crops grown in environments with limited rainfall. Agronomic approaches to restrain Esc aim to reduce the transmission of solar radiation to the soil beneath the crop by improving ground cover by the crop canopy. However, the sparse canopies produced in these environments have a limited effect on evaporation during the energy dependent first stage (Es1); much of the evaporation is independent of energy at the soilsurface (Es2), and therefore less sensitive to the influence of the crop canopy. Manipulating plant arrangement, primarily by changing row spacing, may provide a simple approach for improving ground cover and restraining E,, without changing GAI, and thus improving WUE and grain yield. To explore the potential benefit of variable row spacing on Esc and grain yield in the dry (300 mm) Mediterranean environment of the eastern wheatbelt of Western Australia, spring wheat was grown in 0.09, 0.18, 0.27 and 0.36 m row spacings on coarse textured and fine textured soil types at Merredin in 1989. Esc was determined with an empirical model and measured with microlysimeters. Row spacing had no significant effect on the development of green area index (GAI), dry matter (DM) accumulation and evapotranspiration (ET) throughout the season. However, in mid-season, the proportion of ground covered by the canopy was higher and transmission of solar radiation was reduced in the 0.09 m row spacing compared with the 0.36 m row spacing. These effects did not restrain E,,, which was similar in all treatments. Esc was not restrained even when the plant density was doubled in the 0.09 m row spacing treatment. Esc during the season averaged 88 mm across all row spacings on both soils; this accounted for 56% and 48% of the mean seasonal ET on the coarse textured and fine textured soils respectively. Consequently, neither water use efficiency nor grain yield were affected by variation in row spacing; water use efficiency averaged 25 kg DM ha-1 mm-1 on both soil types. For dry Mediterranean environments of Western Australia, it was concluded on the basis of these results, and yield data from other row spacing trials in the same districts, that there are no significant yield benefits to be obtained by reducing the row spacing from the current spacing of 0.18 m.

Increasing intrinsic water-use efficiency over the past 160 years does not stimulate tree growth in southeastern China

2018 ◽  
Vol 76 (2) ◽  
pp. 115-130 ◽  
Author(s):  
G Guo ◽  
K Fang ◽  
J Li ◽  
HW Linderholm ◽  
D Li ◽  
...  
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Tree Growth ◽  
Southeastern China ◽  
The Past ◽  
Intrinsic Water Use Efficiency ◽  
Use Efficiency
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