WATER USE EFFICIENCY, YIELD AND YIELD COMPONENTS OF SECOND CROP SUNFLOWER UNDER DEFICIT IRRIGATION

2016 ◽  
Vol 21 (2) ◽  
pp. 190 ◽  
Author(s):  
Selin AKCAY ◽  
Necdet DAGDELEN
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Yield Components ◽  
Deficit Irrigation ◽  
Yield And Yield Components ◽  
Use Efficiency

scholarly journals EFFECT OF DRIP IRRIGATION AND SUBSURFACE DRIP IRRIGATION SYSTEM ON YIELD AND YIELD COMPONENTS OF CORN

2016 ◽  
Vol 47 (1) ◽  
Author(s):  
Abdul-Razak & et al.
Keyword(s):  
Moisture Content ◽  
Water Use Efficiency ◽  
Water Use ◽  
Drip Irrigation ◽  
Yield Components ◽  
Subsurface Drip Irrigation ◽  
Yield And Yield Components ◽  
Use Efficiency ◽  
Subsurface Drip ◽  
Number Of Seeds

A field experiment was conducted at the experimental farm of Field Crops Sciences Department, College of Agriculture, University of Baghdad, during the spring season of 2013وto investigate the effect of Irrigation method {Drip Irrigation (DI) and subsurface Drip Irrigation (SDI)} and system operational pressure on yield and yield' components and on water use efficiency (WUE) of corn (Zea mays L.) Var. Buhoth 5018. The experiment was laid out as a split plot in randomized complete block design (RCBD) with three replication. The system operational pressure (P) of 3 levels ( 30,50, and 70 kpa) were used as main plots called as P1 , P2 and P3 respectively, and Irrigation methods (DI and SDI) were used as sub plots. Data showed that the use of SDI resulted in a highest yield rate per unit area (8.88m ton.ha-1) with 2.3% comparing with surface drip Irrigation (DI), It's also caused a significant increase in number of studied traits such as; soil volumetric moisture content by2%, ear length by 11.4%, ear high 7.9%, number of seeds per row by 11.7%, and wt. of 100 seeds by 3.5%. However, data showed a significant increase caused by rising the system Operational  pressure (P) on yield, as highest (P3) increase yield by 6.5% in comparison with 30 kpa, and on all of the following measured characteristics such as volumetric moisture content by 5.5%, water uniformity distribution 2.5%( reaching 97.62%), Ear length by 11.7%, Ear high by 41.6%, number of seed rows by 17.2%, number of seeds per row by 123.4%, and wt. of 100 seeds by 19.3%. Water Use Efficiency (WUE) was improved by 2.2% by using the SDI with 70 kpa by 6.8%, concluding that using SDI with 70Kpa in a system pipe lines pleased at 0.20m below soil surface can be recommended in corn fields at central

scholarly journals Effects of Irrigation and Nitrogen Fertilization on Seed Yield, Yield Components, and Water Use Efficiency of Cleistogenes songorica

Agronomy ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 466
Author(s):  
Qibo Tao ◽  
Mengjie Bai ◽  
Cunzhi Jia ◽  
Yunhua Han ◽  
Yanrong Wang
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Seed Yield ◽  
Yield Components ◽  
Perennial Grass ◽  
Yield Component ◽  
Path Coefficient ◽  
Grass Seed ◽  
Significant Difference ◽  
Use Efficiency

Irrigation and nitrogen (N) are two crucial factors affecting perennial grass seed production. To investigate the effects of irrigation and N rate on seed yield (SY), yield components, and water use efficiency (WUE) of Cleistogenes songorica (Roshevitz) Ohwi, an ecologically significant perennial grass, a four-year (2016–2019) field trial was conducted in an arid region of northwestern China. Two irrigation regimes (I1 treatment: irrigation at tillering stage; I2 treatment: irrigation at tillering, spikelet initiation, and early flowering stages) and four N rates (0, 60, 120, 180 kg ha−1) were arranged. Increasing amounts of both irrigation and N improved SY, evapotranspiration, WUE, and related yield components like fertile tillers m−2 (FTSM) and seeds spikelet−1. Meanwhile, no significant difference was observed between 120 and 180 kg N ha−1 treatments for most variables. The highest SY and WUE was obtained with treatment combination of I2 plus 120 kg N ha−1 with four-year average values of 507.3 kg ha−1 and 1.8 kg ha−1 mm−1, respectively. Path coefficient and contribution analysis indicated that FTSM was the most important yield component for SY, with direct path coefficient and contribution coefficient of 0.626 and 0.592. Overall, we recommend I2 treatment (three irrigations) together with 120 kg N ha−1 to both increase SY and WUE, especially in arid regions. Future agronomic managements and breeding programs for seed should mainly focus on FTSM. This study will enable grass seed producers, plant breeders, and government program directors to more effectively target higher SY of C. songorica.

scholarly journals Impact of Different Irrigation and Nitrogen Treatments on Barley Yield, Yield Components and Water Use Efficiency

2021 ◽  
Vol 15 (1) ◽  
pp. 7-19
Author(s):  
H.S. Al-Menaie ◽  
O. Al-Ragom ◽  
A. Al-Shatti ◽  
I. McCann ◽  
A. Naseeb ◽  
...  
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Yield Components ◽  
Use Efficiency ◽  
Nitrogen Treatments
Sign in / Sign up

Export Citation Format

Share Document