scholarly journals Impact of Foliar Application with Iron, Zinc, Silicon Nano Particles and Yeast on Growth, Yield and Water Use Efficiency of Tomato Plants under Water Stress Conditions تأثیر الرش الورقی بجزیئات نانو الحدید والزنک والسیلیکون والخمیرة على النمو والمحصول وکفاءة الاستهلاک المائى لنباتات الطماطم تحت ظروف الإجهاد المائى

2020 ◽  
Vol 11 (6) ◽  
pp. 523-530
Author(s):  
K. Dawa, ◽  
M. Zaghloul ◽  
H. I. Ahmed ◽  
KH. Hamad
Keyword(s):  
Water Stress ◽  
Water Use Efficiency ◽  
Water Use ◽  
Foliar Application ◽  
Growth Yield ◽  
Stress Conditions ◽  
Nano Particles ◽  
Tomato Plants ◽  
Use Efficiency

Water Stress Effects on Growth, Yield and Water Use Efficiency of Hemarthria Compressa

2012 ◽  
Vol 212-213 ◽  
pp. 578-585
Author(s):  
Zhong Wen Yang ◽  
Jun Ying Jin ◽  
Xin Yi Xu
Keyword(s):  
Water Stress ◽  
Water Use Efficiency ◽  
Water Use ◽  
Control Period ◽  
Growth Yield ◽  
Control Treatment ◽  
Sensitive Period ◽  
Total Biomass ◽  
Use Efficiency ◽  
Hemarthria Compressa

Water stress is an important approach to use water resources efficiently and remit the agricultural water shortage. Hemarthria compressa is one of perennial grasses, a pasture of high quality, which has abundant species resources in China. To explore the response of the growth, yield and water use efficiency(WUE) of Hemarthria compressa under water stress, this study, adapting pot experiment, imposed three water stress degree (LD, MD and SD) treatments and a control treatment on Hemarthria compressa. The data of growth indicators during control period, yield and total water consumption were obtained. The results show a noticeable inhibitory action of water stress on the growth of Hemarthria compressa. Along with the intensifying of water stress, plant height increment, leaf area, total biomass, dry matter of each organ and yield decreased, and the root-shoot ratio increased firstly and inclined to slump finally. Plants under the middle water stress treatment achieved the greatest WUE of 38.25 kg/m3. The first 10d in the water control period was the most sensitive period of the pasture responding to water stress.

scholarly journals Yield, Mineral Composition, Water Relations, and Water Use Efficiency of Grafted Mini-watermelon Plants Under Deficit Irrigation

HortScience ◽  
2008 ◽  
Vol 43 (3) ◽  
pp. 730-736 ◽  
Author(s):  
Youssef Rouphael ◽  
Mariateresa Cardarelli ◽  
Giuseppe Colla ◽  
Elvira Rea
Keyword(s):  
Water Stress ◽  
Plant Growth ◽  
Water Use Efficiency ◽  
Water Use ◽  
Water Relations ◽  
Fruit Quality ◽  
Stress Conditions ◽  
Irrigated Agriculture ◽  
Marketable Yield ◽  
Use Efficiency

Limited water supply in the Mediterranean region is a major problem in irrigated agriculture. Grafting may enhance drought resistance, plant water use efficiency, and plant growth. An experiment was conducted in two consecutive growing seasons to determine yield, plant growth, fruit quality, leaf gas exchange, water relations, macroelements content in fruits and leaves, and water use efficiency of mini-watermelon plants [Citrullus lanatus (Thunb.) Matsum. and Nakai cv. Ingrid], either ungrafted or grafted onto the commercial rootstock ‘PS 1313’ (Cucurbita maxima Duchesne × Cucurbita moschata Duchesne), under open field conditions. Irrigation treatments were 1.0, 0.75, and 0.5 evapotranspiration rates. In both years (2006 and 2007), marketable yield decreased linearly in response to an increase in water stress. When averaged over year and irrigation rate, the total and marketable yields were higher by 115% and 61% in grafted than in ungrafted plants, respectively. The fruit quality parameters of grafted mini-watermelons such as fruit dry matter and total soluble solids content were similar in comparison with those of ungrafted plants, whereas titratable acidity, K, and Mg concentrations improved significantly. In both grafting combinations, yield water use efficiency (WUEy) increased under water stress conditions with higher WUE values recorded in grafted than ungrafted plants. The concentration of N, K, and Mg in leaves was higher by 7.4%, 25.6%, and 38.8%, respectively, in grafted than in ungrafted plants. The net assimilation of CO2, stomatal conductance, relative water content, leaf, and osmotic potential decreased under water stress conditions. The sensitivity to water stress was similar between grafted and ungrafted plants, and the higher marketable yield from grafted plants was mainly the result of an improvement in nutritional status and higher CO2 assimilation and water uptake from the soil.

scholarly journals FOLIAR APPLICATION OF TECAMIN MAX® TO ALLEVIATE WATER DEFICIT EFFECTS ON YIELD AND WATER-USE EFFICIENCY (WUE) OF OKRA

2019 ◽  
Vol 18 (2) ◽  
pp. 15-20
Author(s):  
Mohammed Ali Abood ◽  
Aziz Mahdi Abd Al-Shammari ◽  
Ghassan Jaafar Hamdi
Keyword(s):  
Water Use Efficiency ◽  
Chlorophyll Content ◽  
Water Deficit ◽  
Water Use ◽  
Foliar Application ◽  
Total Yield ◽  
Growth Yield ◽  
Fruit Weight ◽  
Weight Yield ◽  
Use Efficiency

This study was designed to observe the effects of different rates of foliar application of Tecamin max® on growth, yield and water use efficiency (WUE) of okra under water deficit. The field experiment was conducted from April till July 2016 at the teaching and research farm of University of Diyala, Iraq. Performance of okra genotype ‘Samara’ and ‘Ptira’ was assessed by foliar application of Tecamin max® at (0, 2.5 and 5.0 mL L–1) and two irrigation levels (50 and 100% based on field capacity). The results showed that chlorophyll content, fruit weight, yield per plant, total yield and WUE were significantly affected by genotype and irrigations levels and application of Tecamin max®. ‘Samara’ genotype had the highest chlorophyll content, fruit weight, yield per plant, total yield and water use efficiency. Foliar application of Tecamin max® at the rates of 2.5 mL L–1 showed the highest fruit weight, yield performance and WUE. It was followed by foliar application of 5.0 mL L–1. No application of Tecamin max® showed the worst results in all the studied traits.

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