scholarly journals Pruning Wastes From Fruit Trees as a Substrate for Pleurotus ostreatus

2021 ◽  
Vol 56 ◽  
Author(s):  
Angela Yaneth Landínez-Torres ◽  
Carmenza Pérez Fagua ◽  
Angie Coraima Sanabria López ◽  
Yuli Alexandra Deaquiz Oyola ◽  
Carolina Elena Girometta

Abstract Plant material obtained by pruning and production of deciduous fruit trees was evaluated as substrates for the production of the oyster mushroom, Pleurotus ostreatus . Lignified branches and stems from peach, apple, and pear trees were processed using a ripping machine to reduce the size of chips and to optimize disinfection. A completely randomized experimental design was proposed with six treatments (novel substrates) and one absolute control (100% hay substrate). Morphological variables such as thickness and diameter of the pileus, stipe length were assessed, as well as production variables (sprouting, fresh weight, and biological efficiency) and bromatological analysis (ash, ethereal extract, crude fiber, and crude protein). Apart from the 100%-hay substrate, biological efficiency ranged between 27% (100% apple tree as the substrate) and 140% (50% hay + 50% peach tree as the substrate). According to morphological analysis, the highest diameters were recorded from mixed substrates (50% hay + 50% wood), and a highly significant positive correlation was found between diameter and stipe length. Morphological parameters were not significantly correlated with biological efficiency. Analysis of biological efficiency confirmed that mixed substrates clustered together with 100%-wood substrates. Bromatological analysis showed that the mixed substrate (50% hay + 50% pear tree) had the highest protein content among the novel tested substrates. Bromatological parameters were not significantly correlated with biological efficiency. In conclusion, pruning residues from fruit trees can be valuable by using them as substrates for the cultivation of P. ostreatus . Production is quantitatively competitive with that using hay, on the condition that wood is mixed with hay.

Bio-Research ◽  
2020 ◽  
Vol 18 (1) ◽  
pp. 1085-1093
Author(s):  
OC Josephat ◽  
CC Onyeke ◽  
NV Chiejina

Four organic substrates; Mahogany Sawdust (MSD), Corn Cobs (CC), Oil Palm Fruit Fibre (OPFF) and Rice Bran (RB) were evaluated for their effects on growth and yield of Pleurotus ostreatus (Jacq.Fr.) Kumm. The completely randomized experimental design was adopted for the study with 4 treatments replicated 10 times. Results on mean number of days for spawn run, primordial formation and formation of fruit body were 19.90±0.28(CC)-25.20±0.29(MSD), 45.10±0.28(CC)-47.90±0.23(MSD) and 56.50±0.22(CC)-59.40±0.27(MSD), respectively. Similarly, height of stipe, diameter of stipe and diameter of pileus ranges were 3.28±0.13 (MSD)-3.51±0.06 (RB),1.26±0.06 (OPFF)-1.39±0.05(RB) and 4.08±0.05(CC)-4.70±0.04(OPFF), respectively. Fresh weights (g), dry weights (g) and biological efficiency were 10.20±0.31(OPFF)-11.05±0.14(MSD), 3.18±0.15(CC)-3.38±0.13(RB) and 4.14±0.14 (OPPF)-4.42±0.06(MSD), respectively. Results on mushroom growth showed that CC took the least duration for full mycelial colonization and the longest duration occurred on MSD. There were significant differences (P ≤ 0.05) between the durations required for primordia formation among the four organic substrates. The results on mushroom yield showed that mean fresh weights of harvested mushrooms varied from 10.20±0.31 g on OPFF to 11.05±0.14 g on MSD. There were no significant differences (P ≥ 0.05) in the biological efficiency of mushrooms grown on MSD, CC and OPFF substrates. Considering the growth and yield attributes RB was observed to be the best substrate and could be used for commercial production of P. ostreatus among the various organic substrates used in this study.


2021 ◽  
Vol 27 (01) ◽  
pp. 2225-2233
Author(s):  
M. O. Agba ◽  
◽  
A. A. Markson ◽  
J. O. Oni ◽  
G. A. Bassey ◽  
...  

Pleurotus ostreatus, an edible mushroom is an essential food product. Recognised as one of the cheapest sources of proteins, their high nutritional and anti-nutritional properties are of immense importance to humans. The present study evaluated the effect of sawdust and dried plantain leaves on the growth and yield of Pleurotus ostreatus. Sawdust and dried plantain leaves were composted into seven substrates; as single substrates and at different combinations. The composted substrates include sawdust 100 % (M0), Dry plantain leaves 100% (M1), Dry plantain leaves + sawdust at the ratio of 1:4 (M2), 2:3 (M3), 3:2 (M4), 1:1 (M5) and 4:1(M6). Growth parameters of interest assessed flush include mycelia running rate (MRR), area of pileus, length of the stipe, the girth of the stipe, fresh weight and dry weight, number of fruit body, total yield and biological efficiency. At the end of the three weeks spawn running period, M0 was overall best in supporting mycelia running rate with a mean MRR of 16.00 cm. M1 substrates produced mushroom with longer and bigger stipes (7.17 cm) at the first flush. A higher number of fruit bodies (82.66), total yield (130.35 g), and biological efficiency (43.45 g) were all seen in M0 substrates. Sawdust at 100 % (M0) proved to be the best substrate for the cultivation of Pleurotus ostreatus.


2016 ◽  
Vol 4 (4) ◽  
pp. 52 ◽  
Author(s):  
Funda Atila

AbstractThe aim of this paper is to estimate which of disinfection method is more effective in case of higher yield and fewer cost in cultivation of Pleurotus ostreatus in rural areas.  For this purpose, four different treatments; scalping in hot water (60, 80 and 100°C), and chemical disinfection (1% formaldehyde) were compared with sterilization by autoclave. It has been noticed that method of disinfection affects mycelium growing duration(day), yield(g/kg), biological efficiency (BE%), avarage weight of fruitbody(g), diameter of pileus(cm), stipe lenght(cm) and width(cm).  P. ostreatus took significantly much time to colonise the substrate (19.9 days) disinfected by chemical disinfection compared with others. Chemical disinfection (271.28 g/kg and 91.96%) and scalding hot water at 80oC (263.42 g/kg and 90.83%) had highest productivity in terms of yield and BE, respectively, while scalding hot water at 60oC (136.08 g/kg and 46.92%) had least productivity. The largest diameter of fruitbody was obtained by scalding in hot water at 80oC, while the longest stipes were harvested in disinfected substrate by chemicals.  In conclusion, cheaper and more easily applecable scalping in hot water 80°C and chemical disinfection may be use for the disinfection of growing substrates instead of sterilization with autoclave in rural areas.Keywords: mushroom growing substrate, disinfection methods, autoclaved, scalding, chemical disinfection, Pleurotus ostreatus


2020 ◽  
Vol 14 (3) ◽  
pp. 334-341
Author(s):  
Francisco Orduz-Ríos ◽  
Karen Victoria Suárez-Parra ◽  
Pablo Antonio Serrano-Cely ◽  
Pablo Cesar Serrano-Agudelo ◽  
Nicolás Forero-Pineda

Temperate fruit trees are a vital part of the economy of the Cundiboyacense highlands in Colombia. The nursery stage is important because it guarantees development at the final grow site. Little is known about the fertilization processes and nutritional dynamics of deciduous fruit trees in the early stages. This research aimed to evaluate the dynamics of N-P-K-Ca and Mg, along with SPAD units, in grafted plum (Prunus salicina) var. Horvin plants under the conditions of tropical highlands, which were evaluated at different growth points (cm), from grafting to transplant. The foliar N concentrations were the highest, followed by the K, P and Mg concentrations. Macronutrient concentrations in the first-stage of grafted nursery plants require nutritional balance for vegetative development and successful establishment at the definitive grow site.


2020 ◽  
Author(s):  
Chen Chen ◽  
Wanyu Xu ◽  
Ningning Gou ◽  
Lasu Bai ◽  
Lin Wang ◽  
...  

Abstract Background Bud dormancy in deciduous fruit trees enables plants to survive cold weather. The buds adopt dormant state and resume growth after satisfying the chilling requirements. Chilling requirements play a key role in flowering time. So far, several chilling models, including ≤ 7.2 °C model, the 0–7.2 °C model, Utah model, and Dynamic Model, have been developed; however, it is still time-consuming to determine the chilling requirements employing any model. This calls for efficient tools that can analyze data. Results In this study, we developed novel software Chilling and Heat Requirement (CHR), by flexibly integrating data conversions, model selection, calculations, statistical analysis, and plotting. Conclusion CHR is a tool for chilling requirements estimation, which will be very useful to researchers. It is very simple, easy, and user-friendly.


2016 ◽  
Vol 15 (4) ◽  
pp. 401-407 ◽  
Author(s):  
Kunihisa Morinaga ◽  
Kenichiro Koga ◽  
Hiroto Iga ◽  
Naoto Endo ◽  
Yuichiro Fujii ◽  
...  

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