scholarly journals Regulation of Photosynthesis and Water Use Efficiency in Relation to Stomatal Frequency and Interveinal Distance in C3- and C4-Grass Species.

2002 ◽  
Vol 40 (4) ◽  
pp. 365-374 ◽  
Author(s):  
Yoshinobu KAWAMITSU ◽  
Sin-ichi HIYANE ◽  
Yuichi TAMASHIRO ◽  
Susumu HAKOYAMA
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Grass Species ◽  
Stomatal Frequency ◽  
C4 Grass ◽  
Use Efficiency ◽  
Regulation Of Photosynthesis

scholarly journals Components of Water Use Efficiency Have Unique Genetic Signatures in the Model C4 Grass Setaria

2018 ◽  
Vol 178 (2) ◽  
pp. 699-715 ◽  
Author(s):  
Max J. Feldman ◽  
Patrick Z. Ellsworth ◽  
Noah Fahlgren ◽  
Malia A. Gehan ◽  
Asaph B. Cousins ◽  
...  
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
C4 Grass ◽  
Use Efficiency ◽  
Genetic Signatures

scholarly journals Productivity and water use of five pasture grasses in Canterbury

1992 ◽  
pp. 135-138
Author(s):  
F.J.Parry B.A. Mckenzie ◽  
R.J. Lucas
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Festuca Arundinacea ◽  
Dactylis Glomerata ◽  
Growth Conditions ◽  
Grass Species ◽  
Pasture Grass ◽  
Phalaris Aquatica ◽  
Pasture Grasses ◽  
Use Efficiency

An experiment was conducted on a fertile Wakanui silt loam in 1991/1992 examining yield and water use of five perennial pasture grass species, Grasslands Hakari mountain brome (Bromus sirchensis), Grasslands Wana cocksfoot (Dactylis glomerata), Grasslands Roa tall fescue (Festuca arundinacea), Grasslands Marsden perennial ryegrass (L&m perenne x L&urn hybridum), Grasslands Maru phalaris (Phalaris aquatica). From 8 November, 1991 until 31 March, 1992 the highest yields were from Hakari and Maru at 11370 and 10870 kg/ha. Marsden, Wana and Roa yielded 8960,875O and 8190 kg/ha respectively. From late January until the end of March growth conditions were not limited by water stress or nutrients. Pre-irrigation yields, when minfall limited growth were 3840,3570, 2720, 2520 and 2290 kg/ha for Hakari, Maru, Marsden, Wana and Roa respectively. Total water use was not significantly different between species and averaged 400 mm. Water use efficiency (WUE) was significantly higher for Hakari and Maru at 30.1 and 27.9 kg DM/ha/mm respectively. The other three species had WUE's less than 23 kg DM/ ha/mm of water. Neutron probe measurements showed all species extracted soil water from a depth of at least 110 cm. Keywords Bromus sitchensis, Dactylis glomerata, Festuca arundinacea, Lolium perenne x L&urn hybridum, Phalaris aquatica, root depth, water use, water use efficiency, yield

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

A comparative appraisal of urea super granule application in raised bed and prilled urea application in conventional planting for transplanted boro rice (Oryza sativa)

2016 ◽  
Vol 6 (1) ◽  
pp. 822-832
Author(s):  
Halim Mahmud Bhuyan ◽  
Most. Razina Ferdousi ◽  
Mohammad Toufiq Iqbal ◽  
Ahmed Khairul Hasan
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
N Fertilizer ◽  
Deep Placement ◽  
Prilled Urea ◽  
Planting Methods ◽  
Weed Infestation ◽  
Use Efficiency ◽  
Raised Bed ◽  
Boro Rice

Utilization of urea super granule (USG) with raised bed cultivation system for transplanted boro (winter, irrigated) rice production is a major concern now days. A field experiment was conducted in the chuadanga district of Bangladesh to compare the two cultivation methods: deep placement of USG on raised bed with boro rice, and prilled urea (PU) broadcasting in conventional planting. Results showed that USG in raised bed planting increased grain yields of transplanted boro rice by up to 18.18% over PU in conventional planting. Deep placement of USG in raised bed planting increased the number of panicle m-2, number of grains panicle-1 and 1000-grains weight of boro rice than the PU in conventional planting. Better plant growth was observed by deep placement of USG in raised bed planting compared to PU in conventional planting. Sterility percentage and weed infestation were lower on USG in raised bed planting compared to the PU in conventional planting methods. Forty seven percent irrigation water and application time could be saved by USG in raised bed planting than PU in conventional planting. Deep placement of USG in bed saved N fertilizer consumption over conventional planting. Water use efficiency for grain and biomass production was higher with deep placement of USG in bed planting than the PU broadcasting in conventional planting methods. Similarly, agronomic efficiency of N fertilizer by USG in bed planting was significantly higher than the PU broadcasting in conventional planting. This study concluded that deep placement of USG in raised bed planting for transplanted boro rice is a new approach to achieve fertilizer and water use efficiency as well as higher yield and less water input compared to existing agronomic practices in Bangladesh.

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