Stimulation of arbuscular mycorrhizal fungi symbiosis with soursop (Annona muricata L.) using rice husk bochar

Stimulation of arbuscular mycorrhizal fungi symbiosis with soursop (Annona muricata L.) using rice husk bochar

Soursop (Annona muricata L.) known for its medicinal and health benefits has been increasingly planted in Malaysia. However, there are limited information on soursop cultivation under Malaysian highly weathered soils. Cultivation of soursop can be further explored with in...

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Main Author: Harun, Nur Saidahtul Nadiah
Format: Thesis
Language:English
Published: 2019
Subjects:
Mycorrhizal fungi
Mycorrhizas in agriculture
Online Access:http://psasir.upm.edu.my/id/eprint/83984/1/FP%202019%2044%20-%20ir.pdf
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spelling my-upm-ir.839842022-01-04T06:51:26Z Stimulation of arbuscular mycorrhizal fungi symbiosis with soursop (Annona muricata L.) using rice husk bochar 2019-06 Harun, Nur Saidahtul Nadiah Soursop (Annona muricata L.) known for its medicinal and health benefits has been increasingly planted in Malaysia. However, there are limited information on soursop cultivation under Malaysian highly weathered soils. Cultivation of soursop can be further explored with incorporation of beneficial microorganism namely arbuscular mycorrhizal fungi (AMF) and organic matter such as rice husk biochar (RHB) as tools in soil management. Thus, local evaluation of AMF sources and RHB application rate on soursop seedlings under Malaysian soil is crucial to fill the knowledge gap. This study seek to stimulate arbuscular mycorrhizal fungi (AMF) symbiosis with soursop (Annona muricata L.) using rice husk biochar (RHB) while observing the RHB and AMF effects on soursop seedlings growth, soil physico-chemical as well as biological properties. This was done by growing 2 months old soursop seedlings in 2 separate glasshouse experiments. In the first experiment, 2 factors which are 4 RHB rates (0, 10, 15 and 20 t/ha RHB) with and without AMF inoculation were tested on soursop seedlings for 4 months. The study was arranged in Randomized Complete Block Design (RCBD) and with 4 replications. After 4 months of transplanting, soil treated with RHB and AMF significantly improved mycorrhizal colonisation and sporulation, soursop (Annona muricata) plant growth and plant nutrient uptake. Lower rate of RHB with AMF (+AMF + 10 t/ha RHB) promoted plant growth and gave similar effects to that at higher RHB rate (15 t/ha and 20 t/ha RHB) in stimulating AMF development. Soils treated with 10 t/ha RHB either with or without AMF, improved 4.33 % AMF sporulation, 9.30 % plant growth, 2.2 % root development, and 2.57 % plant P uptake compared to control While the first experiment suggested that AMF species inoculated in this study (Glomus mosseae) was able to form symbiotic association with soursop at lower application rate (<10 t/ha RHB), further determination on the AMF species compatibility, suitability and host performance at similar RHB rate. Thus, various AMF sources (AMFS 1, AMFS 2 and AMFS 3) in combination were carried out with or without 10 t/ha RHB were evaluated on soursop seedlings under glasshouse conditions. After 2 months of transplanting, all mycorhizal sources either individually (single species) or combination (mixed species) significantly increased AMF sporulation (31%) and improved growth of soursop seedlings compared to non-inoculated control. Mixed AMF species found in AMFS 2 was able to stimulate AMF and plant growth (15.5 % plant height, 0.32 % chlorophyll content as well as bacterial population (0.02%). In conclusion, RHB at lower rate (10 t/ha RHB) was optimal and did not have any detrimental effects to AMF or soursop seedlings. While locally isolated Glomus moassae (single species) and commercial inoculums were able to form symbiotic relationship with soursop roots, having more than one AMF species would result in better soursop growth. Inoculating soursop seedlings with AMF at nursery stage up to 6 months old may provide more chances for the plant to establish symbiotic relationship with AMF before transplanted to field. Mycorrhizal fungi Mycorrhizas in agriculture 2019-06 Thesis http://psasir.upm.edu.my/id/eprint/83984/ http://psasir.upm.edu.my/id/eprint/83984/1/FP%202019%2044%20-%20ir.pdf text en public masters Universiti Putra Malaysia Mycorrhizal fungi Mycorrhizas in agriculture Md. Jaafar, Noraini
institution Universiti Putra Malaysia
collection PSAS Institutional Repository
language English
advisor Md. Jaafar, Noraini
topic Mycorrhizal fungi
Mycorrhizas in agriculture
spellingShingle Mycorrhizal fungi
Mycorrhizas in agriculture

Harun, Nur Saidahtul Nadiah
Stimulation of arbuscular mycorrhizal fungi symbiosis with soursop (Annona muricata L.) using rice husk bochar
description Soursop (Annona muricata L.) known for its medicinal and health benefits has been increasingly planted in Malaysia. However, there are limited information on soursop cultivation under Malaysian highly weathered soils. Cultivation of soursop can be further explored with incorporation of beneficial microorganism namely arbuscular mycorrhizal fungi (AMF) and organic matter such as rice husk biochar (RHB) as tools in soil management. Thus, local evaluation of AMF sources and RHB application rate on soursop seedlings under Malaysian soil is crucial to fill the knowledge gap. This study seek to stimulate arbuscular mycorrhizal fungi (AMF) symbiosis with soursop (Annona muricata L.) using rice husk biochar (RHB) while observing the RHB and AMF effects on soursop seedlings growth, soil physico-chemical as well as biological properties. This was done by growing 2 months old soursop seedlings in 2 separate glasshouse experiments. In the first experiment, 2 factors which are 4 RHB rates (0, 10, 15 and 20 t/ha RHB) with and without AMF inoculation were tested on soursop seedlings for 4 months. The study was arranged in Randomized Complete Block Design (RCBD) and with 4 replications. After 4 months of transplanting, soil treated with RHB and AMF significantly improved mycorrhizal colonisation and sporulation, soursop (Annona muricata) plant growth and plant nutrient uptake. Lower rate of RHB with AMF (+AMF + 10 t/ha RHB) promoted plant growth and gave similar effects to that at higher RHB rate (15 t/ha and 20 t/ha RHB) in stimulating AMF development. Soils treated with 10 t/ha RHB either with or without AMF, improved 4.33 % AMF sporulation, 9.30 % plant growth, 2.2 % root development, and 2.57 % plant P uptake compared to control While the first experiment suggested that AMF species inoculated in this study (Glomus mosseae) was able to form symbiotic association with soursop at lower application rate (<10 t/ha RHB), further determination on the AMF species compatibility, suitability and host performance at similar RHB rate. Thus, various AMF sources (AMFS 1, AMFS 2 and AMFS 3) in combination were carried out with or without 10 t/ha RHB were evaluated on soursop seedlings under glasshouse conditions. After 2 months of transplanting, all mycorhizal sources either individually (single species) or combination (mixed species) significantly increased AMF sporulation (31%) and improved growth of soursop seedlings compared to non-inoculated control. Mixed AMF species found in AMFS 2 was able to stimulate AMF and plant growth (15.5 % plant height, 0.32 % chlorophyll content as well as bacterial population (0.02%). In conclusion, RHB at lower rate (10 t/ha RHB) was optimal and did not have any detrimental effects to AMF or soursop seedlings. While locally isolated Glomus moassae (single species) and commercial inoculums were able to form symbiotic relationship with soursop roots, having more than one AMF species would result in better soursop growth. Inoculating soursop seedlings with AMF at nursery stage up to 6 months old may provide more chances for the plant to establish symbiotic relationship with AMF before transplanted to field.
format Thesis
qualification_level Master's degree
author Harun, Nur Saidahtul Nadiah
author_facet Harun, Nur Saidahtul Nadiah
author_sort Harun, Nur Saidahtul Nadiah
title Stimulation of arbuscular mycorrhizal fungi symbiosis with soursop (Annona muricata L.) using rice husk bochar
title_short Stimulation of arbuscular mycorrhizal fungi symbiosis with soursop (Annona muricata L.) using rice husk bochar
title_full Stimulation of arbuscular mycorrhizal fungi symbiosis with soursop (Annona muricata L.) using rice husk bochar
title_fullStr Stimulation of arbuscular mycorrhizal fungi symbiosis with soursop (Annona muricata L.) using rice husk bochar
title_full_unstemmed Stimulation of arbuscular mycorrhizal fungi symbiosis with soursop (Annona muricata L.) using rice husk bochar
title_sort stimulation of arbuscular mycorrhizal fungi symbiosis with soursop (annona muricata l.) using rice husk bochar
granting_institution Universiti Putra Malaysia
publishDate 2019
url http://psasir.upm.edu.my/id/eprint/83984/1/FP%202019%2044%20-%20ir.pdf
_version_ 1747813430345072640

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