scholarly journals Efectos del pretratamiento con Trichoderma y Bacillus en la germinación de semillas de Agave victoriae-reginae T. Moore

2022 ◽  
Vol 13 (69) ◽  
pp. 56-72
Author(s):  
Francisco Castillo Reyes ◽  
David Castillo Quiroz ◽  
Jesús Eduardo Sáenz Ceja ◽  
Agustín Rueda Sánchez ◽  
J. Trinidad Sáenz Reyes
Keyword(s):  
Peat Moss ◽  
Trichoderma Spp ◽  
Sphagnum Peat ◽  
Sphagnum Peat Moss ◽  
Bacillus Spp

La aplicación de tratamientos pregerminativos es fundamental para mejorar las tasas de germinación de las semillas de especies forestales, entre los cuales el uso de microorganismos es uno de ellos. En este estudio se evaluó el porcentaje de germinación de semillas de Agave victoriae-reginae tratadas con Trichoderma spp. y Bacillus spp. Se probaron tres tratamientos: T1 (Trichoderma), T2 (Bacillus) y T3 (Testigo), con tres repeticiones de 100 semillas cada una. Las semillas se sumergieron en una solución de 1 × 106 UFC (tratamientos T1 y T2), y en agua corriente (T3), luego se sembraron sobre Sphagnum peat moss y se registró el porcentaje de germinación diariamente. La germinación comenzó a los 5 días después de la siembra, lo que significa que las semillas no presentaron latencia. Entre el 8° y 12° día se registró un aumento acelerado de la germinación en los tres casos, hasta que la el proceso finalizó a los 26 días, con 85 % de germinación total para semillas tratadas con Trichoderma, 86.7 % con Bacillus y 74 % con el testigo. Se observó un efecto significativo del tratamiento sobre el porcentaje de germinación; incluso el uso de ambos microorganismos aceleró el proceso de germinación con respecto al testigo. Estos resultados sugieren que el uso de Trichoderma spp y Bacillus spp. como tratamientos pregerminativos puede mejorar la germinación de A. victoriae-reginae y su conservación a largo plazo, lo que contribuye a la permanencia de esta especie en peligro de extinción.

REMOVAL OF ZINC (II) FROM AQUEOUS SOLUTIONS BY ROMANIAN SPHAGNUM PEAT MOSS

2007 ◽  
Vol 6 (3) ◽  
pp. 205-209 ◽  
Author(s):  
Angelica Kicsi ◽  
Doina Bilba ◽  
Matei Macoveanu
Keyword(s):  
Aqueous Solutions ◽  
Peat Moss ◽  
Sphagnum Peat ◽  
Sphagnum Peat Moss

Effects of processing on peat moss microflora

1988 ◽  
Vol 34 (2) ◽  
pp. 131-133 ◽  
Author(s):  
Yvon Cormier ◽  
Anne Mériaux ◽  
Gilles Brochu
Keyword(s):  
Peat Soil ◽  
Dry Weight ◽  
Peat Moss ◽  
Processing Plant ◽  
Soil Drying ◽  
Sphagnum Peat ◽  
Plant Soil ◽  
Sphagnum Peat Moss ◽  
Large Numbers

We studied the microflora of Quebec sphagnum peat moss samples taken from five different locations in a peat moss processing plant: soil, drying stacks, sedimented dust (walls and floor), and in bagged peat moss. Large numbers of microorganisms were found; the predominant ones were of the genus Monocillium (up to 112 × 106 colonies/g of dry peat) and the genus Penicillium (320 × 104 colonies/g dry weight). These moulds were more abundant in the processed peat moss than in the peat soil (e.g., Monocillium: soil, 138 × 103; processed peat, 112 × 106). Aspergillus spp. were absent in all five sample sites. We conclude that Quebec peat moss contains large quantities of microorganisms and that moulds become more concentrated during the processing of the peat from the soil to the final product.

scholarly journals 819 PB 240 PERFORMANCE OF EVERGREEN AZALEAS AS AFFECTED BY SOIL AMENDMENTS AND LANDSCAPE EXPOSURE

HortScience ◽  
1994 ◽  
Vol 29 (5) ◽  
pp. 550f-550
Author(s):  
John C. Pair
Keyword(s):  
Soil Amendments ◽  
Peat Moss ◽  
Numerous Species ◽  
Sphagnum Peat ◽  
South Central ◽  
Sphagnum Peat Moss ◽  
Better Than

Since 1974, numerous species and cultivars of evergreen azaleas have been evaluated for hardiness and adaptability to south central Kansas (zone 6). Selections included Kurumes, Gable hybrids, Shammarello hybrids and others in various amended beds and in several landscape exposures. Hardiest cultivars include `Boudoir', `Caroline Gable', `Herbert', `Karens', `Pride's Pink', `Purple Splendor', and `Snowball' which flowered following -18F (-28C). Moderately hardy were `Elsie Lee', `Holland', `Girard Roberta' and `James Gable'. Best hardiness was found in cultivars and hybrids with Rhododendron kaempferi, and R. yedoense var. poukhanense parentage. Plants in soil amended with sphagnum peat moss or peat plus sulfur were superior to those in soil containing cotton burrs. Winter shade proved valuable in providing the best landscape site and northeast was generally better than a northwest exposure.

scholarly journals KENAF PITH AS A VERMICULITE SUBSTITUTE IN PEAT-BASED MEDIA.

HortScience ◽  
1992 ◽  
Vol 27 (6) ◽  
pp. 647g-647
Author(s):  
Brad B. Hawcroft ◽  
Steven E. Newman
Keyword(s):  
Pore Space ◽  
Hibiscus Cannabinus ◽  
Peat Moss ◽  
Kenaf Fiber ◽  
Fiber Core ◽  
Sphagnum Peat ◽  
Sphagnum Peat Moss ◽  
Celosia Argentea ◽  
The Media ◽  
Water Holding

Kenaf is an alternative fiber crop being evaluated in Mississippi. Kenaf, primarily grown in Asia, can be used in the manufacture of paper, fiber board, acoustical tiles and compost. The bark is the source of the fiber used, leaving the fiber core or pith for use as a paper additive, poultry litter, or is discarded. The objective of this study was to evaluate the potential use of kenaf fiber core as a vermiculite substitute in a sphagnum peat moss-based medium. Plugs of Celosia argentea, Viola × wittrockiana, and Impatiens wallerana were transplanted into 10 cm pots containing 5 different sphagnum peat moss-based media modified with the milled fiber core (pith) of kenaf (Hibiscus cannabinus) and/or vermiculite. The media were as follows: 5 peat: 0 kenaf : 5 vermiculite (v/v/v); 5 peat : 1 kenaf : 4 vermiculite (v/v/v); 5 peat : 2 kenaf : 3 vermiculite (v/v/v); 5 peat : 3 kenaf : 2 vermiculite (v/v/v); 5 peat : 4 kenaf : 1 vermiculite (v/v/v); and 5 peat : 5 kenaf: 0 vermiculite (v/v/v). Water holding capacity, pore space, pH and media shrinkage were monitored throughout the study along with plant growth and plant quality.

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