scholarly journals Rooting Response of Boxwood Cultivars to Hot Water Treatment and Thermal Sensitivity ofCalonectria henricotiaeandC. pseudonaviculatain Diseased Boxwood (Buxusspp.)1

2021 ◽  
Vol 39 (1) ◽  
pp. 1-10
Author(s):  
Nina Shishkoff ◽  
Megan E. Miller ◽  
Marc. A. Cubeta
Keyword(s):  
Water Treatment ◽  
Thermal Sensitivity ◽  
Hot Water ◽  
Root Production ◽  
Similar Response ◽  
Hot Water Treatment ◽  
Minute Exposure ◽  
Buxus Sempervirens ◽  
C 50 ◽  
Rooting Response

AbstractBoxwood blight is caused by Calonectria henricotiae (Che) and C. pseudonaviculata (Cps). Unrecognized symptoms on Buxus cuttings used for propagation could potentially serve as a source of inoculum and result in pathogen spread. In this study, cuttings of boxwood (Buxus spp.) cultivars ‘Justin Brouwers', ‘Nana', ‘Green Beauty', and ‘Green Velvet' were assessed for root production after exposure to 45 C (113 F) or 47.5 C (118 F) water for 0 to 60 minutes in 5 minute increments. The number of roots greater than 1 cm (0.4 in) in length produced by cuttings of all cultivars three months after treatment in 45 C water for up to 60 minutes was not statistically different from the non-immersed control. A similar response was observed for cuttings of all cultivars treated in 47.5 C water for up to 60 minutes, except for cv. ‘Nana,' which produced fewer roots than the non-immersed control after 35 minutes of exposure to heated water. Experiments conducted on diseased, detached boxwood leaves of susceptible cultivar ‘Justin Brouwers' at 47.5 C, 50 C (122 F) or 52.5 C (127 F) showed significantly reduced production of conidia and viability of Che and Cps after 25 to 30 minute exposure to 47.5 C water (44%) or 12 minute exposure to 50 C water (22%). After 8 minutes of exposure to 52.5 C water, little or no sporulation was observed for either pathogen.Index words: Boxwood blight, Calonectria pseudonaviculata, Calonectria henricotiae, Buxus, hot water treatment, rooting, cuttings, plant propagation.Species used in this study: Boxwood blight [Calonectria henricotiae Gehesquière, Heungens and J.A. Crouch and C. pseudonaviculata (Crous J.Z. Groenewald & C.F. Hill) L. Lombard, M.J. Wingf & Crous] Boxwood [Buxus sempervirens L. ‘Justin Brouwers'; Buxus sinica (Rehder & E. H. Wilson) M. Cheng var. insularis (Nakai) M. Cheng ‘Nana'; B. sempervirens ‘Suffruticosa'×B. sinica var. insularis ‘Green Beauty', and B. sempervirens ‘Suffruticosa' × B. sinica var. insularis ‘Green Velvet'].

scholarly journals PENGARUH HOT WATER TREATMENT (HWT) DAN PERLAKUAN PELILINAN DENGAN EKSTRAK JAHE TERHADAP UMUR SIMPAN CABAI MERAH (CAPSICUM ANNUUM L.)

2018 ◽  
Vol 12 (1) ◽  
Author(s):  
Cicih Sugianti ◽  
Dwi Dian Novita ◽  
Diana Mustika
Keyword(s):  
Water Treatment ◽  
Capsicum Annuum ◽  
Hot Water ◽  
Hot Water Treatment ◽  
Colletotrichum Capsici ◽  
Capsicum Annuum L ◽  
C 50

Penyakit antraknosa salah satu penyakit penting pada tanaman cabai yang disebabkan oleh jamur Colletotrichum capsici. Hot water treatment (HWT) merupakan salah satu teknologi yang dapat diterapkan dalam penanganan pascapanen untuk menekan perkembangan penyakit antraknosa pada cabai merah. Tujuan penelitian ini adalah mempelajari perlakuan pelilinan dengan ekstrak jahe terhadap umur simpan cebe merah. Faktor pertama adalah suhu HWT dengan 3 taraf (45°C, 50°C, dan 55°C) selama 15 menit, dan faktor yang kedua adalah pelilinan menggunakan ekstrak jahe dengan 2 taraf (30% v/v dan 40%v/v). Hasil penelitian menunjukkan analisis sidik ragam dengan taraf 5% perlakuan suhu pencelupan berpengaruh nyata terhadap susut bobot, kekerasan, dan kadar air. Faktor konsentrasi ekstrak jahe berpengaruh nyata terhadap kekerasan dan kadar air. Sedangkan interaksi faktor suhu pencelupan dan konsentrasi jahe berpengaruh nyata terhadap kekerasan dan kadar air. Hasil uji lanjut Duncan menunjukkan bahwa perlakuan interaksi terhadap parameter kekerasan, kadar air, dan penampakan cabai merah pada hari ke-18 penyimpanan didapatkan perlakuan terbaik yaitu perlakuan dengan temperatur 45°C dan konsentrasi ekstrak jahe 30%.Kata kunci: cabai merah, antraknosa, hot water treatment, pelilinan antimikroba.

Silver nanoparticles eliminate Xanthomonas campestris pv. campestris in cabbage seeds more efficiently than hot water treatment

2021 ◽  
Vol 27 ◽  
pp. 102284
Author(s):  
Jakub Pečenka ◽  
Zuzana Bytešníková ◽  
Tomáš Kiss ◽  
Eliška Peňázová ◽  
Miroslav Baránek ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Water Treatment ◽  
Xanthomonas Campestris ◽  
Hot Water ◽  
Hot Water Treatment ◽  
Xanthomonas Campestris Pv Campestris

Nanostructured antibacterial aluminum foil produced by hot water treatment against E. coli in meat

MRS Advances ◽  
2021 ◽  
Author(s):  
Quinshell Smith ◽  
Kenneth Burnett ◽  
Nawzat Saadi ◽  
Khulud Alotaibi ◽  
Atikur Rahman ◽  
...  
Keyword(s):  
Water Treatment ◽  
Aluminum Foil ◽  
Hot Water ◽  
Hot Water Treatment ◽  
E Coli

scholarly journals Morphological Study of Zinc-Oxide Nanorods Grown by Hot Water Treatment Suitable for Solar Cells Conversion Efficiency Enhancement

2020 ◽  
Author(s):  
Mohammad Khairul Basher ◽  
S. M. Shah Riyadh ◽  
Md. Khalid Hossain ◽  
Mahmudul Hassan ◽  
Md. Abdur Rafiq Akand ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Solar Cells ◽  
Water Treatment ◽  
Conversion Efficiency ◽  
Zno Nanorods ◽  
Hot Water ◽  
Zinc Oxide Nanorods ◽  
Hot Water Treatment ◽  
Time Duration ◽  
Zinc Surface

Zinc-oxide (ZnO) nanostructures including nanorods are currently considered as a pioneer research of interest world-wide due to their excellent application potentials in various applied fields especially for the improvement of energy harvesting photovoltaic solar cells (PSC). We report on the growth and morphological properties of zinc-oxide (ZnO) nanorods grown on the surface of plain zinc (non-etched and chemically etched) plates by using a simple, economical, and environment-friendly technique. We apply hot water treatment (HWT) technique to grow the ZnO nanorods and varies the process parameters, such as temperature and the process time duration. The morphological, and elemental analysis confirm the agglomeration of multiple ZnO nanorods with its proper stoichiometry. The obtained nanostructures for different temperatures with different time duration showed the variation in uniformity, density, thickness and nanonorods size. The ZnO nanorods produced on the etched zinc surface were found thicker and uniform as compared to those grown on the non-etched zinc surface. This chemically etched Zinc plates preparation can be an easy solution to grow ZnO nanorods with high density and uniformity suitable for PSC applications such as to enhance the energy conversion efficiency of the photovoltaic (PV) solar cells towards the future sustainable green earth.

scholarly journals Susceptibility of Some Sugarcane Varieties to the Heat Treatment Used in the Control of Chlorotic Streak

1969 ◽  
Vol 40 (1) ◽  
pp. 67-69
Author(s):  
José Adsuar
Keyword(s):  
Heat Treatment ◽  
Puerto Rico ◽  
Water Treatment ◽  
Virus Disease ◽  
Germination Percentage ◽  
Hot Water ◽  
Hot Water Treatment ◽  
Agricultural Experiment Station ◽  
Sugarcane Varieties ◽  
Agricultural Experiment

Chlorotic streak, a virus disease of sugarcane, is known to occur in Puerto Rico and to cause a reduction in germination, tillering, and yield of sugarcane per acre. Immersion of the infected cane in hot water at 52° C. for 20 minutes inactivated the virus and increased the yield of cane and sugar. It is also known that the hot-water treatment may adversely affect the germination of the different varieties. Thirteen of the best sugarcane varieties as recommended by this Agricultural Experiment Station were tested for susceptibility to the hot-water treatment. The treatment adversely affected the germination percentage of M. 336, B. 41227, and Co. 281. It stimulated the germination of varieties H. 328560, P.R. 1000, B. 37161, B. 40105, B. 37172, B. 371933, P.R. 907, and P.R. 902. It had no significant effect on the germination of P.R. 905 and P.R. 980.

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