Effects of preharvest drip-irrigation scheduling on strawberry yield, quality and growth

2003 ◽  
Vol 43 (1) ◽  
pp. 105 ◽  
Author(s):  
H. Kirnak ◽  
C. Kaya ◽  
D. Higgs ◽  
I. Bolat ◽  
M. Simsek ◽  
...  

Strawberry (Fragaria × ananassa Duch) cultivars, Oso Grande and Camarosa were grown in the field from July 1999 to May 2000 in order to investigate the effectiveness of preharvest drip-irrigation management on fruit yield, quality (i.e. soluble dry matter, fruit size), leaf macro-nutrient composition and normal growth parameters. All plots were irrigated uniformly until 2 weeks before harvest. Differential treatments were then imposed ranging from a complete cut-off of irrigation to full irrigation through the harvest period. Preharvest drip-irrigation management treatments were (i) complete irrigation cut-off, dry (D), (ii) normal irrigation based on class A pan and percentage cover (C), (iii) 75% of normal irrigation, C (IR1), (iv) 50% of normal irrigation, C (IR2), and (v) 25% of normal irrigation, C (IR3). Normal irrigation (control, C) was created by irrigating plants once every 2 days at 100% A pan (Epan) evaporation. No irrigation (D) and IR3 treatments caused reductions in most parameters measured, except water-soluble dry matter concentrations (SDM) in fruit compared with other treatments. There were no significant differences between C, IR1, and IR2 treatments in normal growth parameters or leaf nutrient composition. Fruit size and SDM were both significantly affected by late-season irrigation management; individual fruit weight was significantly reduced and SDM increased even in the IR2 and IR3 treatments compared with control values. Fruit yield was not affected significantly by reduced water application except in the D treatment. These results clearly indicate that reduced preharvest irrigation was partially detrimental; a small reduction in irrigation (IR1) had little or no effect but 50% or less of normal irrigation, while not reducing overall fruit yield, resulted in smaller fruits.

EDIS ◽  
2017 ◽  
Vol 2017 (5) ◽  
Author(s):  
Davie Mayeso Kadyampakeni ◽  
Kelly T. Morgan ◽  
Mongi Zekri ◽  
Rhuanito Ferrarezi ◽  
Arnold Schumann ◽  
...  

Water is a limiting factor in Florida citrus production during the majority of the year because of the low water holding capacity of sandy soils resulting from low clay and the non-uniform distribution of the rainfall. In Florida, the major portion of rainfall comes in June through September. However, rainfall is scarce during the dry period from February through May, which coincides with the critical stages of bloom, leaf expansion, fruit set, and fruit enlargement. Irrigation is practiced to provide water when rainfall is not sufficient or timely to meet water needs. Proper irrigation scheduling is the application of water to crops only when needed and only in the amounts needed; that is, determining when to irrigate and how much water to apply. With proper irrigation scheduling, yield will not be limited by water stress. With citrus greening (HLB), irrigation scheduling is becoming more important and critical and growers cannot afford water stress or water excess. Any degree of water stress or imbalance can produce a deleterious change in physiological activity of growth and production of citrus trees.  The number of fruit, fruit size, and tree canopy are reduced and premature fruit drop is increased with water stress.  Extension growth in shoots and roots and leaf expansion are all negatively impacted by water stress. Other benefits of proper irrigation scheduling include reduced loss of nutrients from leaching as a result of excess water applications and reduced pollution of groundwater or surface waters from the leaching of nutrients. Recent studies have shown that for HLB-affected trees, irrigation frequency should increase and irrigation amounts should decrease to minimize water stress from drought stress or water excess, while ensuring optimal water availability in the rootzone at all times.


1993 ◽  
Vol 73 (1) ◽  
pp. 273-279 ◽  
Author(s):  
V. Poysa

Advanced lines and backcrosses from interspecific hybridization of processing tomato (Lycopersicon esculentum Mill.) with six L. chmielewskii (Rick, Kesicki, Fobes and Holle) and L. cheesmanii (Riley) accessions were evaluated in the field over 2 yr for soluble solids content (SSC), total solids content (TSC), fruit yield and fruit size to determine the effectiveness of combining elevated solids levels with high fruit yield and size following early generation selection. More than a quarter of the lines had significantly higher SSC levels than the recurrent tomato parent, Purdue 812 (P812). Several lines combined high SSC and TSC with high fruit yield and large fruit size to produce more dry matter yield per hectare or per fruit than P812. Two backcrosses were optimal for combining high SSC and high yield. SSC and TSC were negatively correlated with fruit size and, to a lesser degree, with fruit yield. Key words: Lycopersicon esculentum, soluble solids, total solids


2014 ◽  
Vol 10 (2) ◽  
pp. 71-82 ◽  
Author(s):  
VK Choudhary ◽  
MC Bhambri ◽  
N Pandey

A field experiment was conducted during 2006-07 and 2007-08 at Precision Farming Development Centre, Horticulture Farm, Indira Gandhi Agricultural University, Raipur, Chhattisgarh, India to evaluate the weed dynamics, yield, quality, organoleptic parameters and root growth of Capsicum as influenced by drip irrigation and mulches. The black polythene mulch being at par with paddy straw mulch gave the least weed population, dry weight and highest weed control efficiency over other mulches. Drip irrigation at 0.6 Epan obtained the least value of weed growth and highest weed control efficiency. Drip irrigation at 1.0 Epan showed highest fruit yield (32.02 t ha-1), total soluble solid (5.72), ascorbic acid (120.25 mg 100g-1) and organoleptic parameters but root growth registered maximum in flood irrigation at 1.0 IW/CPE. Black polythene followed by paddy straw mulch showed maximum fruit yield and other parameters. Pungent test scored maximum with flood irrigation at 1.0 IW/CPE and no mulch. Drip irrigation at 1.0 Epan along with black polythene as well as paddy straw mulch restrict weed growth, harvested quality fruit with higher fruit yield of capsicum. DOI: http://dx.doi.org/10.3329/sja.v10i2.18325 SAARC J. Agri., 10(2): 71-82 (2012)


2019 ◽  
Author(s):  
Yuan Li ◽  
Wenquan Niu ◽  
Xiaoshu Cao ◽  
Mingzhi Zhang ◽  
Jingwei Wang ◽  
...  

Abstract Background: Hypoxia causes injury and yield loss. Soil aeration has been reported to accelerate the growth of plants and increase crop yield. The aim of this study was to examine growth response of greenhouse-produced muskmelon to 3 levels of sub-surface drip irrigation (I), 3 different installation depths of drip laterals in the soil (D), and 4 levels of supplemental soil aeration frequency (A). A fractional factorial experiment was designed to examine these treatment effects on marketable fresh fruit yield, leaf area index during 3 growth stages, and dry matter partitioning at harvest. In addition, we studied the response of fruit yield and dry matter of tomato to 2 levels of burial depths of subsurface tubing in combination with 3 frequency levels of soil aeration. Results: Results showed that soil aeration can positively influence the yield, leaf area index, dry matter and irrigation use efficiency of the muskmelon (p<0.05). The fruit yield of muskmelon and tomato were increased by 21.5% and 30.8% respectively with 1-d and 2-d aeration intervals compared with the no aeration treatment. Conclusions: The results suggest that soil aeration can positively impact the plant root zone environment and more benefits can be obtained with aeration for both muskmelon and tomato plants.


Author(s):  
Anna Figas ◽  
Anetta Siwik-Ziomek ◽  
Roman Rolbiecki

Abstract Effect of irrigation on some growth parameters of cup plant and dehydrogenase activity in soil. A field experiment carried out in two vegetation seasons in the years 2012 and 2013 on very light soil at Kruszyn Krajeński, in the vicinity of Bydgoszcz (Poland). Investigation of the influence of drip irrigation on some growth parameters of three- and four-year-old cup plant (Silphium perfoliatum L.) and on the activity of dehydrogenase participating at cycling in soil was examined. The cup plants were cultivated from the micropropagation seedlings. Experiments were performed as one factorial in four replications. The factor of the experiment was the following variants: O - without irrigation (control plots), D - with drip irrigation. Drip irrigation was scheduled according to tensiometers indications. Irrigation significantly increase the height of the plants, the length of internode, the thickness of the stalk, the fresh weight of the shoots, and the number of the leaves and flowers. Irrigation also increased the transpiration leaf area and the dry matter content. In the soil sampled under cup plant in 2012 there was found a greater activity of dehydrogenases in soil derived from non-irrigated objects.


2012 ◽  
Vol 4 (2) ◽  
pp. 111-114
Author(s):  
MIK Rana ◽  
MMA Mondal ◽  
AKMA Prodhan ◽  
MG Azam

Miyobi solution sprayed on chili plants at 30 days after transplanting. Application of Miyobi increased plant height, branch and leaf number, root length, root number, root weight, stem weight, total dry matter, chlorophyll content and photosynthesis in leaves, fruits plant-1 and fruit yield over control. Reverse trend was also observed in fruit size. Most of the morphological, biochemical, yield attributes were increased with increasing Miyobi concentration up to 0.8 mgL-1 followed by a decline. These results indicate that application of Miyobi @ 1.1 mgL-1 may be toxic for plant growth and development. Control, where only water was sprayed, showed the lowest of the above parameters. The higher fruit yield was recorded in 0.5 and 0.8 mgL-1 with being the highest in 0.5 mgL-1 (369.8 g plant-1) due to increased number of fruits plant-1. The lowest fruit yield was recorded in control (260.3 g plant-1) due to inferiority in yield attributes. However, application of Miyobi at 0.8 mgL-1 was more costly than 0.5 mgL-1. Therefore, Miyobi with 0.5 mgL-1 may be applied for increased fruit yield of chili for further recommendation few more field trials will require.DOI: http://dx.doi.org/10.3329/jesnr.v4i2.10158J. Environ. Sci. & Natural Resources, 4(2): 111-114, 2011  


2020 ◽  
Vol 15 (2) ◽  
pp. 136-146
Author(s):  
O T Adeniji ◽  
A V Tenebe ◽  
A Ishaka ◽  
E Jandong ◽  
J T Adamu ◽  
...  

In Sudan's agro-ecological zone, tomato production is constrained by a dearth of high fruit yielding and quality (Solanum lycopersicum [L.]) varieties for cultivation in polyhouse. Exotic and indeterminate tomato genotypes with high fruit yield and quality were evaluated to gain information on variation for fruit yield, quality, shape, and interdependence between traits in Sudan agroecology. The seed was sown during 2018 and 2019. Fruit yield, quality, and phenomic traits were measured. Development, °Brix, and fruit yield responded to microclimate factors in the polyhouse over years. ‘Bruno’ was the best for fruit size and ‘Tofi’ for fruit number. Vine length at flowering, fruits/cluster, days to 50% flowering, and days to first flowering and fruit brix are heritable. The genotype responses suggest the need for stable and to develop high-yielding and quality tomato varieties for protected cultivation in the Sudan agro-ecological zone. Testing stable genotypes in locations could enhance breeding efficiency with respect to genotypic stability. The yield data gained under tropical conditions identified traits of superior genotypes for multiple environment studies and to encourage tomato growers to consider protected cultivation in the tropics.


EDIS ◽  
1969 ◽  
Vol 2004 (10) ◽  
Author(s):  
Eric Simonne ◽  
David Studstill ◽  
Michael Dukes ◽  
John Duval ◽  
Robert Hochmuth ◽  
...  

Improving irrigation management in vegetable crop production reduces production costs, saves water, and reduces the risk of nutrient leaching. As water movement in the root zone below mulched beds is difficult to see, injecting soluble dye through the drip irrigation system provides a simple and practical method to visualize water movement in the soil. Understanding water movement in raised beds is essential for improving irrigation scheduling and nutrient delivery. This document is HS980 one of a series of the Horticultural Sciences Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Publication date: July 2004. HS980/HS222: How to Conduct an On-Farm Dye Test and Use the Results to Improve Drip Irrigation Management in Vegetable Production (ufl.edu)


2012 ◽  
Vol 22 (6) ◽  
pp. 731-737 ◽  
Author(s):  
Esmaeil Fallahi

The increasing trend in the world population and decreasing trend in the suitable land for fruit production, combined with a shortage of water, mandate the use of efficient methods of irrigation and establishment of high-density orchards that require size-controlling rootstocks. Method of irrigation and vigor of rootstock are among the most important factors affecting uptake of mineral nutrients, and thus tree growth and fruit yield and quality attributes of apple (Malus domestica). In a long-term experiment, effects of two irrigation methods and four rootstocks on water use, tree growth, fruit quality, and leaf mineral nutrients were studied in ‘Pacific Gala’ apple. The experiment was conducted in southwestern Idaho, which represents the high desert conditions of the Intermountain West region of the United States. Evapotranspiration-based irrigation scheduling (ETc), adjusted by percentage of ground shading, was used for sprinkler and drip systems. Significantly lower volume of water was applied to the trees with drip irrigation than those with sprinkler irrigation system. Leaf calcium (Ca) decreased but leaf potassium (K) increased with rootstock vigor, resulting in the greatest leaf Ca but lowest leaf K in trees on ‘Budagovsky 9’ (B.9). Fruit weight and yield per tree in ‘Pacific Gala’ on ‘Nic 29’ (RN29) rootstock was higher than those on B.9 and ‘Geneva 30’ (G.30) rootstocks. ‘Pacific Gala’ on B.9 rootstock had smaller trees and fruit size but higher fruit starch degradation pattern (SDP), suggesting earlier fruit maturity on this rootstock. On average, ‘Pacific Gala’ trees with drip irrigation had larger fruit and higher leaf magnesium (Mg) and manganese (Mn) but less fruit color and firmness and lower leaf Ca, K, zinc (Zn), and copper (Cu) than those with sprinkler system.


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