Effects of irrigation interval and quantity on the yield and quality of confectionary pumpkin grown under field conditions

2015 ◽  
Vol 159 ◽  
pp. 290-298 ◽  
Author(s):  
Duran Yavuz ◽  
Musa Seymen ◽  
Nurcan Yavuz ◽  
Önder Türkmen
Keyword(s):  
Field Conditions ◽  
Yield And Quality ◽  
Irrigation Interval

scholarly journals Entomopathogenic fungi decrease Rhizoctonia disease in potato in field conditions

PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e9895
Author(s):  
Oksana G. Tomilova ◽  
Elena M. Shaldyaeva ◽  
Natalia A. Kryukova ◽  
Yulia V. Pilipova ◽  
Natalia S. Schmidt ◽  
...  
Keyword(s):  
Entomopathogenic Fungi ◽  
Complex Disease ◽  
Field Conditions ◽  
Metarhizium Robertsii ◽  
New Crops ◽  
Time Treatment ◽  
Yield And Quality ◽  
Rhizoctonia Disease ◽  
Tuber Crop

Rhizoctonia potato disease is widespread in the world and causes substantial yield and quality losses in potato. This study aimed to evaluate the efficacy of entomopathogenic fungi Metarhizium robertsii and Beauveria bassiana in the inhibition of potato Rhizoctonia complex disease. The efficacy of the entomopathogenic fungi M. robertsii and B. bassiana in the defense of potato against Rhizoctonia disease (stem cancer, black scrulf and other forms of manifestation on tubers) was estimated under field conditions in Western Siberia. Preplanting treatment of the tubers with B. bassiana decreased Rhizoctonia disease in the stems and stolons. At the same time, treatment with M. robertsii did not cause a decrease in Rhizoctonia disease in these organs. However, both fungi decreased the sclerotium index on the tubers of new crops. We demonstrated two mechanisms of inhibition of Rhizoctonia solani by M. robertsii and B. bassiana, including (1) direct effect, expressed as inhibition of R. solani sclerotium formation in cocultivation assays, and (2) indirect effect, which is associated with increased peroxidase activity in potato roots under the influence of colonization by entomopathogenic fungi. We suggest that the treatment of seed tubers with B. basiana can effectively manage Rhizoctonia disease during the plant vegetative season and that both fungi significantly improve the quality of the new tuber crop.

Influence of Peanut Stripe Virus on Growth, Yield, and Quality of Florunner Peanut1

1988 ◽  
Vol 15 (2) ◽  
pp. 47-52 ◽  
Author(s):  
R. E. Lynch ◽  
J. W. Demski ◽  
W. D. Branch ◽  
C. C. Holbrook ◽  
L. W. Morgan
Keyword(s):  
Growth Yield ◽  
Field Conditions ◽  
Seed Infection ◽  
Yield And Quality ◽  
Peanut Stripe Virus ◽  
Immunosorbent Assays

Abstract The influence of peanut stripe virus (PStV) on growth, yield, and grade of Florunner peanut and percent seed transmissions was determined under field conditions during 1985 and 1986. Plants were artificially inoculated with PStV and infection was confirmed by enzyme-linked immunosorbent assays. Under the conditions of these tests, PStV did not significantly influence growth, yield, or grade of Florunner peanut, and seed infection averaged less than 2 percent.

scholarly journals OPTIMIZING WATER PRODUCTIVITY, YIELD AND QUALITY OF GRAPEFRUIT IRRIGATED BY BUBBLER AND SURFACE IRRIGATION UNDER KHARTOUM STATE SUDAN CONDITIONS

AGROFOR ◽  
2018 ◽  
Vol 3 (1) ◽  
Author(s):  
Ahmed Al-KHALIFA B. AHMED ◽  
Shaker BABIKER AHMED ◽  
Mohamed A. ALI ◽  
Adil Y. YAGOUB
Keyword(s):  
Irrigation System ◽  
Water Productivity ◽  
Total Yield ◽  
Quality Parameters ◽  
Soluble Solids ◽  
Surface Irrigation ◽  
Marginal Rate ◽  
Yield And Quality ◽  
Irrigation Interval

The experiment was carried out in the private orchards at Tayba Alhasnab area ofsouth Khartoum State, in Sudan during 2012 and 2013 to evaluate the waterproductivity, yield and quality of foster grapefruit irrigated by bubbler and surfaceirrigation system. Irrigation interval was 5 days in bubbler irrigation system andevery 7 to12 days in surface irrigation system depending on the prevailing weatherconditions. The results revealed that higher yield and number of fruits was obtainedon bubbler irrigation system compared to surface irrigation system. Moreover,bubbler irrigation system increased the total yield of foster grapefruit by 28% and25%, respectively as compared to surface irrigation system. Applying irrigatedwater under bubbler irrigation system improved the quality parameters of fostergrapefruit such as fruit diameter recorded significant differences on bubblerirrigation system compared with surface irrigation system in both years, fruitweight and peel thickness recorded significant differences (P≤0.001) betweenbubbler irrigation system and surface irrigation system on finger weight, but ondifferences in peel thickness in both years, total soluble solids of foster grapefruitirrigated by bubbler irrigation system were significantly higher (P≤ 0.001)compared with surface irrigation system in both years.However, bubbler irrigation system saved irrigation water by 68% and 71% andhad highest water productivity (2.9 and 2.7 kg/m3) compared to surface irrigationsystem (0.67 and 0.68 kg/m3). Also highest marginal rate of return was obtainedwith bubbler irrigation system compared to surface irrigation.

Quantifying the boron demand of Pelargonium graveolens for optimum biomass yield and quality of essential oil under field conditions

2021 ◽  
pp. 1-14
Author(s):  
Pratibha Tripathi ◽  
Raghvendra Pratap Singh ◽  
Shubham Srivastava ◽  
B. Shivanna ◽  
Anil Kumar Singh ◽  
...  
Keyword(s):  
Essential Oil ◽  
Biomass Yield ◽  
Field Conditions ◽  
Pelargonium Graveolens ◽  
Yield And Quality

scholarly journals Field estimate with NDVI of grain yield and quality of wheat flour

2021 ◽  
Vol 25 (12) ◽  
pp. 801-806
Author(s):  
João P. K. Reznick ◽  
Volnei Pauletti ◽  
Gabriel Barth
Keyword(s):  
Grain Yield ◽  
Optical Sensors ◽  
Vegetation Index ◽  
Normalized Difference Vegetation Index ◽  
Wheat Yield ◽  
Field Conditions ◽  
Yield And Quality ◽  
Technological Quality ◽  
Grain Yield And Quality

ABSTRACT Nitrogen fertilization is essential for wheat yield and quality but needs more accuracy, and the use of proximal optical sensors in the field can assist in this goal. This study aimed to verify if it is possible to use the normalized difference vegetation index (NDVI) obtained throughout the wheat growth phase to estimate the grain yield and the technological quality of the flour from cultivars submitted to nitrogen doses. The experiment was conducted at field conditions in Ponta Grossa, PR, Southern Brazil. The experimental design was randomized blocks in a 4 × 6 factorial scheme with four replicates. The cultivars Quartzo, Gralha Azul, Sinuelo, and Toruk, combined with six doses of N (0, 40, 80, 120, 160, and 200 kg ha-1 of N), were evaluated. The NDVI values were sensitive to both nitrogen doses and the different cultivars. There was a relationship between NDVI and grain yield, protein, and gluten concentration of flour. The NDVI estimated the gluten strength, stability, tenacity, extensibility of the mass, and tenacity/extensibility ratio of the flour obtained at the beginning of the cycle, but not for all cultivars. The determinations of NDVI with active optical sensor GreenSeeker in wheat are efficient to estimate the grain yield and the flour quality under field conditions, allowing to generate models for estimation of these variables separately for each cultivar.

scholarly journals YIELD AND QUALITY OF ONION VARIETIES TO THREE SOIL MOISTURE REGIMES IN LYSIMETERS AND FIELD CONDITIONS IN NIGER, WEST AFRICA.

HortScience ◽  
1992 ◽  
Vol 27 (6) ◽  
pp. 587a-587
Author(s):  
CHIT RK PRASHAR ◽  
GOVIND C. SHARMA
Keyword(s):  
Soil Moisture ◽  
Sandy Loam ◽  
Soil Depth ◽  
Field Conditions ◽  
Medium Size ◽  
The Past ◽  
Yield And Quality ◽  
Moisture Regimes ◽  
The Mean

Yield and quality responses to Galmi Violet, Galmi White and Sumrana Violet were studied during 1990-91 and 1991-92 in Maradi region in Niger. Three regimes comprised of irrigating when the soil moisture depletion in 20 cm of soil depth was 40%, 60% and 80%. Investigations were carried out both under field conditions and in the lysimeters. The soil was sandy loam to loam. The lysimeters were 2m×2m×1m drainage type and well set over the past twenty years. The crop was raised during the dry season from October to March with no rainfall. Despite the low temperatures the radiation levels were high. Onion yield was higher under low irrigation regime. The mean yield was 32.5 tons/ha. However, the bulk density was higher under higher moisture regimes. The keeping quality over eight month period was not affected by soil moisture regimes. The bulbs of Sumrana Violet were of medium size whereas the bulbs of Galmi Violet and White were larger size. From a market acceptability standpoint violet onions were preferred over the white ones.

scholarly journals The Effect of Different Irrigation Interval on Tuber Yield and Quality of Potato (Solanum tuberosum L.)

2018 ◽  
Vol 3 (2) ◽  
pp. 27-31 ◽  
Author(s):  
Salah Abdulla Salih ◽  
Farhan Ahmad Abdulrahman ◽  
Yonis Abdulla Mahmood
Keyword(s):  
Solanum Tuberosum ◽  
Tuber Yield ◽  
Solanum Tuberosum L ◽  
Starch Content ◽  
High Yield ◽  
Yield And Quality ◽  
Irrigation Interval ◽  
Significant Difference ◽  
The Impact

Gaining high yield of potato is very crucial for farmer and quality also has a great impact on their production. Beside the quality and yield using the amount of irrigation also important to reduce water lose. The tuber yield and quality of potato (Solanum tuberosum L.) is impacted by irrigated water. This study was carried out in two respectively season (2017 and 2018) in Halabja province of Kurdistan regional of Iraq to evaluate the impact of irrigation interval on quality and tuber yield in potato cultivars. In this study there are  four irrigation intervals (3,5,7 and 9 days) used by furrow irrigation method which subjected in complete randomized design (CRD) with three replications. The potato tuber production in 3 day interval showed highest percentage also protein and starch content was recorded highest in both year of cultivation, but the abscisic acid was affected by more irrigation which in 3 day interval irrigation the rate was less than other. Also in 5 day interval irrigation the rate was acceptable because there is no significant difference in terms of tuber yield, protein and starch content if compare with 3 day interval irrigation in particular for those area faced restricted in using water irrigation.

Effect of Micronutrients on Pepper (Capsicum annum) Grown in Peat Soil under Greenhouse and Field Conditions

1976 ◽  
Vol 12 (2) ◽  
pp. 129-133 ◽  
Author(s):  
J. Navrot ◽  
I. Levin
Keyword(s):  
Peat Soil ◽  
Foliar Spray ◽  
Field Conditions ◽  
Red Pepper ◽  
Positive Effects ◽  
Capsicum Annum ◽  
Yield And Quality ◽  
Copper Zinc

SUMMARYA study was made of the effect of micronutrients such as boron, copper, zinc, manganese and iron, applied as foliar spray or directly to peat soil, on growth and yields of pepper under greenhouse and field conditions. Combinations of micronutrients were applied in two forms, as salts or as chelates. Results showed positive effects on yield and quality of red pepper, and soil chemical tests substantiated the results.

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