Foliar application of fungicides affects occurrence of potato tuber rots caused by four foliar pathogens

1994 ◽  
Vol 16 (4) ◽  
pp. 341-346 ◽  
Author(s):  
H.W. (Bud) Platt
Keyword(s):  
Potato Tuber ◽  
Foliar Application ◽  
Foliar Pathogens

scholarly journals Effect of Potassium on Potato Tuber Production in Acid Soils of Malepatan, Pokhara

1970 ◽  
Vol 7 ◽  
pp. 42-48 ◽  
Author(s):  
BH Adhikari ◽  
KB Karki
Keyword(s):  
Potato Tuber ◽  
Foliar Application ◽  
Acid Soil ◽  
Block Design ◽  
Acid Soils ◽  
Soil Condition ◽  
Soil Potassium ◽  
Research Journal ◽  
Tuber Production ◽  
Pokhara Valley

Soils of Pokhara valley, especially Malepatan, are fine textured silt loam, extremely acidic innature (3.7-4.0 pH) and are medium in soil potassium content. On-station experiments wereconducted to assess the response of potassium (K2O) and its application methods on potato tuberyield in an extremely acid soil condition. Six potassium levels (0, 50, 75, 100 kg ha-1 as basalapplication, 50 kg basal plus 50 kg top dressed, and 50 kg basal plus 50 kg foliar application)were tested in the experiment for three consecutive years (2000, 2001 and 2002). A randomizedcomplete block design (RCBD) with 3 replications was employed. Variety used was MS 42.Nitrogen (N), phosphorus (P2O5) and compost were applied as basal dose in each plots at the rateof 100 kg, 50 kg and 20 t ha-1, respectively. Three years mean result on the plant growthcharacters revealed that tallest plant height was recorded (33.22 cm) when 50 kg ha-1 potassiumwas applied basally and 50 kg ha-1 top-dressed. The trend was quite similar in tillers production(6.96 branches plant-1) and biomass production (168.66 g plant-1). Maximum of 473.33-g plant-1of tubers was produced when 100 kg of potassium was applied basal single dose. Highest tuberyield of 24.75 t ha-1 of tuber were produced when 50 kg potassium was applied basally and 50kg top- dressed, a total of 100 kg ha-1. Highly significant response of potassium levels on tuberproduction was observed in all the years. The results of this investigation suggested thatapplication of potassium (K2O) at the rate of 50 kg ha-1 basal and 50 kg ha-1 top-dressed in 45days could increase potato tuber yield satisfactorily in extremely acid soil condition.Key words: Basal application; potassium levels; Solanum tuberosum; tuber production; topdressingDOI: 10.3126/narj.v7i0.1867Nepal Agriculture Research Journal Vol.7 2006 pp.42-48

scholarly journals Foliar Application of Fungicides Registered Against Late Blight Influences Main Potato Tuber Diseases and Key Quantitative Characteristics of Tubers

2022 ◽  
Author(s):  
Petr Sedlák ◽  
Vladimíra Sedláková ◽  
Petr Doležal ◽  
Petra Baštová ◽  
Jakub Vašek ◽  
...  
Keyword(s):  
Late Blight ◽  
Potato Tuber ◽  
Structural Changes ◽  
Common Scab ◽  
Foliar Application ◽  
Negative Control ◽  
Black Scurf ◽  
Silver Scurf ◽  
Potato Leaf ◽  
Tuber Diseases

AbstractAdequate integrated management of potato leaf diseases can have an influence on pathogens which are challenging to control and cause main potato tuber diseases. Deriving from this hypothesis, an experiment was designed to evaluate the efficacy of foliar application of twelve fungicides on late blight in tubers, common scab, black scurf and silver scurf. In the period of 2013 to 2017, the fungicides were equally applied six times in registered doses during the growing seasons. Eight tuber disease indicators and eight yield characteristics were then evaluated in harvested tuber samples. Significant differences were found among the fungicides used. In comparison to the negative control (n. c.), the application of Infinito, Ranman Top and Revus Top reduced the quantity of tubers infected by late blight by 72% on average. The incidence of common scab increased by 65% of n. c. under the effect of copper oxychloride, while an average reduction by 19% of n. c. was observed with the use of Acrobat MZ WG, Curzate Gold and Consento. The occurrence of silver scurf was significantly enhanced by Curzate Gold and Consento (105% of n. c.), while it was suppressed by Revus Top and Revus (85% of n. c.). All fungicides were ineffective on black scurf yet had a positive influence on the potato yield and quality, with the choice of fungicide having a great impact on the quality of tubers. The application of any safe fungicide is important, especially in years similar to 2015, which was the most devastating recent year for potato production in terms of structural changes in yield of tubers.

Immunolocalization of extensin and potato tuber lectin in carrot, tomato and potato

1996 ◽  
Vol 97 (4) ◽  
pp. 708-718 ◽  
Author(s):  
Shu-xia Li ◽  
Allan M. Showalter
Keyword(s):  
Potato Tuber

Survey of Alcoholic Foliar Application on Reproductive Yield of Purple Coneflower (Echinacea purpurea L.)

Planta Medica ◽  
2013 ◽  
Vol 79 (05) ◽  
Author(s):  
MT Khosravi ◽  
A Mehrafarin ◽  
H Naghdibadi ◽  
E Khosravi
Keyword(s):  
Foliar Application ◽  
Echinacea Purpurea ◽  
Purple Coneflower

Effect of Urea and Nano-Nitrogen Fertigation and Foliar Application of Nano-Boron and Molybdenum on some Growth and Yield Parameters of Potato

2020 ◽  
Vol 10 (1) ◽  
pp. 253-263
Author(s):  
Hayyawi W.A. Al-juthery ◽  
Estabraq Hilal Obaid Al-Maamouri
Keyword(s):  
Foliar Application ◽  
Growth Traits ◽  
Solanum Tuberosum L ◽  
Block Design ◽  
Growth And Yield ◽  
Control Treatment ◽  
Acid Yield ◽  
Biological Yield ◽  
Starch Yield ◽  
Private Farm

Investigating the effect of urea and nano-nitrogen fertigation and foliar application of nano B and Mo on growth and yield of potato Solanum tuberosum L. [Rivera-A]. The study was conducted in a private farm located in the Al-Taleah area - Babylon governorate. The experiment consisted of (12) treatments consisting of separated fertigation of nano nitrogen (25% N) and urea (46% N), single treatments of leaf spraying of nano Mo (5%), Nano B (9%), nano-binary combinations (Mo+B) and (U+ Nano Mo), (U+Nano B), Nano (N+Mo), Nano (N+B), and tricombination treatments of (U+Mo+B), Nano (N+Mo+B) additional to the control treatment. Randomize Complete Block Design (RCBD) and one way simple experiment with three replicates. Fertilizers were applied at levels of 40 liters h-1 of Nano-N fertilizer (25% N) and 300 kg h-1 urea fertilizer (46% N). They were sprayed early in the morning after (40) days after planting four times. Two weeks is the period between an application and another according to the recommendation of (1) kg  h-1 nano-fertilizer of (B) and (500) g h-1 of  Mo. Fertilizers were injected and sprayed at (10, 20, 30 and 40)% of the total amount of the fertilizer were applied as the first, second, third and fourth applications, respectively. Some growth traits were tested including the chlorophyll content in the leaves, the total dry vegetative yild, the soft tubers yield, and the biological yield, proteins and ascorbic acid yield compared to the control (spray water only). The results of the Duncan test showed a significant increase in most of the studied traits of nano-tricombination (N+Mo+B) in the fresh tubers yield,  dry vegetative yield  , the biological yield, starch yield ,the total protein and ascorbic yield (37.53, 1.799, 8.138,4.152 , 481.3and 653.8 meg ha-1) respectively .compare to control (21.58 , 0.890, 4.463  ,2.323 , 366.1 and 215.5 meg ha-1) respectively.

Effect of algae Ecklonia maxima extract (Kelpak SL) on yields of common wheat, durum wheat and spelt wheat

2019 ◽  
Vol 74 (1) ◽  
pp. 5-14
Author(s):  
GRZEGORZ SZUMIŁO ◽  
LESZEK RACHOŃ ◽  
BARBARA KROCHMAL-MARCZAK
Keyword(s):  
Triticum Aestivum ◽  
Durum Wheat ◽  
Common Wheat ◽  
Yield Components ◽  
Grain Quality ◽  
Foliar Application ◽  
Control Treatment ◽  
Favourable Effect ◽  
Ecklonia Maxima ◽  
Spelt Wheat

The 3-year experiment was concerned with the response of spring forms of common wheat (Triticum aestivum L. subsp. aestivum), durum wheat (Triticum durum Desf.) and spelt wheat (Triticum aestivum subsp. spelta L. em. Thell.) to the foliar application of a plant growth stimulant (extract from marine algae Ecklonia maxima), with the commercial name of Kelpak SL (GS), as compared to control treatment (C). The following parameters were analysed: yield of grain, yield components (number of ears, weight of 1000 kernels, number and weight of kernels per ear) and physical indicators of grain quality (test weight, uniformity and vitreosity of grain). The study showed that the level of yielding and the yield components were related primarily with the wheat genotype, but they depended also on the agro-climatic conditions and on the algae extract and control experimental treatments. The application of algae extract, compared to the control, caused a significant increase in the yields of the spring wheat species under study, on average by 7.0%. Canopy spraying with algae extract had a favourable effect on the number of ears, on he number and weight of kernels per ear, but it had no effect on the weight of 1000 kernels. The grain quality of durum wheat, spelt wheat and common wheat was affected more strongly by the weather conditions in the successive years of the study and by the genotype than by the foliar application of algae extract. The spelt genotypes were characterised by lower yields and lower grain quality than common wheat and the durum wheat genotypes.

Sign in / Sign up

Export Citation Format

Share Document