Effect of regulated deficit irrigation during the vegetative growth period on shoot elongation and oil yield components in olive hedgerows (cv. Arbosana) pruned annually on alternate sides in San Juan, Argentina

2019 ◽  
Vol 37 (4) ◽  
pp. 533-546 ◽  
Author(s):  
Eduardo R. Trentacoste ◽  
Facundo J. Calderón ◽  
Octavio Contreras-Zanessi ◽  
Walter Galarza ◽  
Adriana P. Banco ◽  
...  
Keyword(s):  
Vegetative Growth ◽  
Yield Components ◽  
Deficit Irrigation ◽  
Growth Period ◽  
Shoot Elongation ◽  
Oil Yield ◽  
San Juan ◽  
Regulated Deficit Irrigation

scholarly journals Photosynthetic Characteristics and Yield Response of Isatis indigotica to Regulated Deficit Irrigation in a Cold and Arid Environment

Water ◽  
2021 ◽  
Vol 13 (24) ◽  
pp. 3510
Author(s):  
Chenli Zhou ◽  
Hengjia Zhang ◽  
Fuqiang Li ◽  
Zeyi Wang ◽  
Yucai Wang
Keyword(s):  
Root Growth ◽  
Water Use Efficiency ◽  
Water Deficit ◽  
Water Use ◽  
Vegetative Growth ◽  
Deficit Irrigation ◽  
Growth Stage ◽  
Growth Period ◽  
Regulated Deficit Irrigation ◽  
Use Efficiency

Water resource scarcity is an important factor restricting the sustainable development of agriculture in Northwest China. Regulated deficit irrigation can conserve water while maintaining high crop yields. A field experiment was conducted to evaluate the effect of regulated deficit irrigation on the photosynthetic characteristics, yield, and water use efficiency of woad (Isatis indigotica) under mulched drip irrigation from 2017 to 2019 in a cold and arid area of the Hexi Oasis irrigation region, China. Sufficient water was supplied during the seedling stage. The control consisted of adequate water supplied during the other growth stages, whereas mild, moderate, and severe water deficits were imposed during the vegetative growth period, and a mild and moderate water deficit was imposed during the fleshy root growth stage. A mild water deficit was imposed during the fleshy root maturity period. The results showed that the net photosynthetic rate, transpiration rate, and stomatal conductance under moderate and severe water deficit were significantly (p < 0.05) decreased compared with the control, respectively, during the vegetative growth period. The economic yield of mild water deficit during the vegetative growth and mild water deficit during the vegetative growth and fleshy root growth did not differ significantly (p > 0.05) from that of the control. Other treatments caused a 6.74–17.74% reduction in the economic yield of woad. The water use efficiency and irrigation water use efficiency were the highest in the mild water deficit during the vegetative growth period and the fleshy root growth period. Therefore, the application of a continuous mild deficit from the vegetative growth stage to the fleshy root growth stage with sufficient water supplied during other growth periods is recommended as the optimal irrigation regime for maximum yield, water use efficiency, and water-saving of woad.

scholarly journals Long-term Effects of Restricted Root Volume and Regulated Deficit Irrigation on Peach: I. Growth and Mineral Nutrition

2000 ◽  
Vol 125 (1) ◽  
pp. 135-142 ◽  
Author(s):  
A.M. Boland ◽  
P.H. Jerie ◽  
P.D. Mitchell ◽  
I. Goodwin ◽  
D.J. Connor
Keyword(s):  
Mineral Nutrition ◽  
Vegetative Growth ◽  
Deficit Irrigation ◽  
Prunus Persica ◽  
Root Length Density ◽  
Interactive Effects ◽  
Long Term Effects ◽  
Root Volume ◽  
Regulated Deficit Irrigation ◽  
Soil Volume

Individual and interactive effects of restricted root volume (RRV) and regulated deficit irrigation (RDI) on vegetative growth and mineral nutrition of peach trees [Prunus persica (L.) Batsch (Peach Group) `Golden Queen'] were studied over 3 years (1992-95). Trees were grown in lysimeters of five different volumes (0.025, 0.06, 0.15, 0.4, and 1.0 m3) with either full or deficit (RDI) irrigation. Increasing soil volume increased vegetative growth as measured by trunk cross-sectional area (TCA) (linear and quadratic, P < 0.011) and tree weight (linear, P < 0.001) with the final TCA ranging from 29.0 to 51.0 cm2 and tree weight ranging from 7.2 to 12.1 kg for the smallest to largest volumes. Root density measured at the completion of the experiment decreased with increasing soil volume (linear and quadratic, P < 0.001) with root length density declining from 24.0 to 2.0 cm·cm-3. RDI reduced vegetative growth by up to 70% as measured by weight of summer prunings. Root restriction was effective in controlling vegetative vigor and is a viable alternative for control of vegetative growth. Mineral nutrition did not limit tree growth.

Response of Navel Lane Late citrus trees to regulated deficit irrigation: yield components and fruit composition

2011 ◽  
Vol 31 (3) ◽  
pp. 333-341 ◽  
Author(s):  
C. Ballester ◽  
J. Castel ◽  
D. S. Intrigliolo ◽  
J. R. Castel
Keyword(s):  
Yield Components ◽  
Deficit Irrigation ◽  
Regulated Deficit Irrigation ◽  
Fruit Composition ◽  
Citrus Trees

Response of vegetative growth and fruit development to regulated deficit irrigation at different growth stages of pear-jujube tree

2009 ◽  
Vol 96 (8) ◽  
pp. 1237-1246 ◽  
Author(s):  
Ningbo Cui ◽  
Taisheng Du ◽  
Fusheng Li ◽  
Ling Tong ◽  
Shaozhong Kang ◽  
...  
Keyword(s):  
Fruit Development ◽  
Vegetative Growth ◽  
Deficit Irrigation ◽  
Growth Stages ◽  
Regulated Deficit Irrigation ◽  
Jujube Tree ◽  
Different Growth Stages

Genetics of post-drought recovery, persistence and summer dormancy in orchardgrass (Dactylis glomerata)

2018 ◽  
Vol 69 (11) ◽  
pp. 1140
Author(s):  
Fatemeh Pirnajmedin ◽  
Mohammad Mahdi Majidi ◽  
Fatemeh Saeidnia ◽  
Behnam Hoseini ◽  
Aghafakhr Mirlohi ◽  
...  
Keyword(s):  
Yield Components ◽  
Deficit Irrigation ◽  
Dactylis Glomerata ◽  
Phenotypic Selection ◽  
Forage Yield ◽  
Genetic Progress ◽  
Narrow Sense Heritability ◽  
Regulated Deficit Irrigation ◽  
Summer Dormancy ◽  
Drought Recovery

The genetic basis of post-drought recovery, summer dormancy and persistence under drought stress is little investigated in orchardgrass (Dactylis glomerata L.). In this study, polycross populations (half-sib genotypes) were evaluated under normal and regulated deficit irrigation for 3 years (2012–14) in the field. Irrigation was then withheld in 2015, and the genotypes were evaluated for post-drought recovery and persistence. The results showed that regulated deficit irrigation decreased forage yield, yield components, persistence and recovery. A broad range of general combining ability was observed for most of the measured traits. Moderate to high estimation of narrow-sense heritability for yield components, persistence, recovery and summer dormancy index indicated that phenotypic selection may be successful to attain genetic progress. Under deficit irrigation, flowering time was positively correlated with persistence and recovery, indicating that selection based on lateness would lead to improvement in these traits. Stable and superior families across environments were identified based on regression coefficients and principle component analysis that would be desirable in future breeding programs.

Vegetative structure and distribution of oil yield components and fruit characteristics within olive hedgerows (cv. Arbosana) mechanically pruned annually on alternating sides in San Juan, Argentina

2018 ◽  
Vol 240 ◽  
pp. 425-429 ◽  
Author(s):  
Eduardo R. Trentacoste ◽  
Facundo J. Calderón ◽  
Carlos M. Puertas ◽  
Adriana P. Banco ◽  
Octavio Contreras-Zanessi ◽  
...  
Keyword(s):  
Yield Components ◽  
Oil Yield ◽  
San Juan ◽  
Fruit Characteristics ◽  
Vegetative Structure

scholarly journals Influence of Regulated Deficit Irrigation and Environmental Conditions on Reproductive Response of Sweet Cherry Trees

Plants ◽  
2020 ◽  
Vol 9 (1) ◽  
pp. 94 ◽  
Author(s):  
Victor Blanco ◽  
Pedro José Blaya-Ros ◽  
Roque Torres-Sánchez ◽  
Rafael Domingo
Keyword(s):  
Leaf Area ◽  
Vegetative Growth ◽  
Deficit Irrigation ◽  
Sweet Cherry ◽  
Fruit Set ◽  
Irrigation Treatment ◽  
Regulated Deficit Irrigation ◽  
Reproductive Response ◽  
Floral Differentiation ◽  
Cherry Trees

The reproductive response of fifteen year old sweet cherry trees (Prunus avium L.) combination ‘Prime Giant’/SL64 under Mediterranean climate to deficit irrigation was studied in a commercial orchard in south-eastern Spain for four seasons. Three irrigation treatments were assayed: (i) control treatment, irrigated without restrictions at 110% of seasonal crop evapotranspiration; (ii) sustained deficit irrigation treatment, irrigated at 85% ETc during pre-harvest and post-harvest periods, and at 100% ETc during floral differentiation, and (iii) regulated deficit irrigation treatment, irrigated at 100% ETc during pre-harvest and floral differentiation and at 55% ETc during post-harvest. The duration and intensity of the phenological phases of sweet cherry trees, including cold accumulation, flowering, fruit set or fruit and vegetative growth, were assessed to ascertain whether the different irrigation strategies imposed affect the trees’ reproductive response (fruit yield, fruit size, leaf area, fruit physiological disturbances, and starch and soluble carbohydrates stock) in the same season or have a negative effect in the next season. Deficit irrigation did not advance, enhance or penalize flowering, fruit set or fruit growth. Neither did it diminish carbohydrate concentration in roots or cause an increase in the number of double fruits, which was more linked to high temperatures after harvest. However, deficit irrigation decreased vegetative growth and consequently the leaf area/fruit ratio, which, when it fell below 180 cm2 fruit−1, affected cherry size.

scholarly journals Effect of complementary irrigation on yield components and alternate bearing of a traditional olive orchard in semi-arid conditions

2016 ◽  
Vol 14 (2) ◽  
pp. e1203 ◽  
Author(s):  
Enrico M. Lodolini ◽  
Serena Polverigiani ◽  
Saed Ali ◽  
Mohammed Mutawea ◽  
Mayyada Qutub ◽  
...  
Keyword(s):  
Vegetative Growth ◽  
Yield Components ◽  
Fruit Size ◽  
Olive Tree ◽  
Residual Effects ◽  
Oil Yield ◽  
Alternate Bearing ◽  
Positive Effects ◽  
Arid Conditions ◽  
Semi Arid

Traditional olive orchards are usually not irrigated in the Mediterranean basin, but at those latitudes, the yearly rainfall is frequently insufficient to support equilibrated vegetative growth and high fruit and oil production. This three-year field study investigated the effect of complementary irrigation on olive tree vegetative growth, fruit and oil yield during a biennial alternate bearing cycle in a traditional grove under semi-arid conditions. Adult olive trees (Olea europaea L. cv. Nabali Baladi) were subjected to complementary irrigation in 2011 and 2012 ('on' and 'off' years, respectively) with 6, 10, 15 or 20 m3 of water per tree per season, which corresponded to 14.2%, 23.8%, 35.7% and 47.6% of the whole seasonal evapotranspiration (42 m3 of water per year), respectively. Rain-fed trees were used as control. In 2013, no complementary irrigation was supplied, and any residual effects on the yield components were determined. Results showed that none of the irrigation regimes affected vegetative growth, or olive fruit size (mesocarp and endocarp), as fresh and dry weights. The fruit and oil yield per tree increased compared to the rain-fed conditions only when the threshold of 15 m3 was exceeded, thus inducing a higher crop load compared to the rain-fed control during the 'off' and even further during the 'on' year. No residual effects were registered in 2013. The study showed that complementary irrigation of at least 35% of the seasonal water requirement can produce remarkable positive effects on fruit yield especially during 'on' bearing years.

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