Interactive effect of AM fungi with Trichoderma viride and Pseudomonas fluorescens on growth and yield of broccoli

Anju Tanwar, Ashok Aggarwal, Sunita Kaushish and Sonika Chauhan
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Anju Tanwar: Mycology and Plant Pathology Laboratory, Department of Botany, Kurukshetra University, Kurukshetra, Haryana, India
Ashok Aggarwal: Mycology and Plant Pathology Laboratory, Department of Botany, Kurukshetra University, Kurukshetra, Haryana, India
Sunita Kaushish: Department of Botany, D.A.V. College for Girls, Yamuna Nagar, Haryana, India
Sonika Chauhan: Mycology and Plant Pathology Laboratory, Department of Botany, Kurukshetra University, Kurukshetra, Haryana, India

Plant Protection Science, 2013, vol. 49, issue 3, 137-145

Abstract: Most of the vegetable crops are known to depend upon arbuscular mycorrhizal fungal (AM) symbiosis for growth and development, since AM fungi provide nutrients and water in exchange for photosynthates. The influences of AM fungi (Glomus intraradices (G) and Acaulospora laevis (A)) with Trichoderma viride (T) and Pseudomonas fluorescens (P) alone and in combinations on growth, mycorrhization, chlorophyll content, nutrient uptakes, and yield of broccoli plants were studied in pot culture under glasshouse conditions. The obtained results demonstrated that the single inoculation of broccoli plants with T. viride significantly increased the above ground fresh weight, root length, chlorophyll b, head diameter, root phosphorus, and shoot nitrogen in comparison to uninoculated control plants. On the other hand, consortium of G+A+T+P significantly increased plant height, above ground dry weight, root fresh weight, chlorophyll a, head fresh weight, and root nitrogen content. Similarly, G+T showed maximum leaf area, and P alone showed maximum uptake of shoot phosphorus. Whereas when P was supplied along with T, early flowering was recorded. AM fungal colonisation was negligible and only root tips were found infected in G or A treated plants which confirms low dependency of broccoli on AM fungi.

Keywords: Acaulospora laevis; Brassica oleracea L. var. italica; brassicaceae; Glomus intraradices; nutrient uptake; vegetable crop (search for similar items in EconPapers)
Date: 2013
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlpps:v:49:y:2013:i:3:id:54-2012-pps

DOI: 10.17221/54/2012-PPS

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