Interaction of a fly ash and root-knot nematode pathogens on Pumpkin (Cucurbita moschata Duch. ex Lam.)

Abstract

Abstract:In the present investigation it was tried to find out the interactive effect of various level of fly ash (abiotic) and root-knot nematode, Meloidogyne incognita (biotic) on plant growth, yield and some biochemical contents in pumpkin (Cucurbita moschata). The experiments were conducted in pots with different level of fly ash and soil mixture in the green house at Department of Botany, Aligarh Muslim University, Aligarh, India. Seeds of pumpkin (F1 hybrid-Nutan) were grown in pots filled with different level of fly ash (5, 10, 20, 30, 40 and 50%). At four leaves stage, seedlings were inoculated with 2000 larvae (J2 stage) of M. incognita. Plants grown in soil (uninoculated and inoculated stes) serve as control for comparing with different level of fly ashamended soil. Plant growth and yield parameters were increased significantly in 10 to 30% fly ash amended soils. However, at higher level of fly ash (40% and 50%), plant growth and yield were reduced significantly. The suppression in plant growth and yield were maximum at 50% fly ash level. Similarly the chlorophyll, carotenoids, carbohydrate and proline contents were also increased at 10-30% levels, then increased in 40 and 50% of fly ash level compared to control (uninoculated set). All the parameters; growth, yield, chlorophyll, carotenoids, carbohydrate and proline content of plants were better for all the fly ash level as compared to nematode inoculated sets.

The potential of thermal power plant fly ash to promote the growth of Indian mustard (Brassica juncea) in agricultural soils

“…Therefore, higher levels of FA adversely affect the growth, yield and pigment content of Indian mustard. Similar results have been observed on several crops such as wheat [8], potato [23] and pumpkin [1]. In the present study, the 30% FA was found best which shows that available nutrients in FA are beneficial at certain levels for utilization of a specific plant species.…”

“…The improvement in chlorophyll content could be due to the presence of Mg in FA, which is the main component of chlorophyll and is required for the structural integrity of chloroplast. The beneficial effect of FA at lower levels (10-30%) has already been observed on many crops such as tomato [15], wheat [8], chickpea [9], potato [23], pumpkin [1].…”

Management of root-knot nematode infection by using fly ash and Trichoderma harzianum in Capsicum annum plants by modulating growth, yield, photosynthetic pigments, biochemical substances, and secondary metabolite profiles

“…In the present investigation, chili plant growth and production increased significantly at the lower levels of fly ash (T6 = 10% FA + 2 g T. harzianum + 2000J2 of M. incognita). There have been similar beneficial effects on various crops such as pumpkins and carrots (Ahmad et al, 2017;Haris et al, 2019). Due to its high K, Mg, and S content, fly ash is a valuable source of essential plant nutrients and is used as fertilizer to boost crop growth (Ahmed et al, 2021a).…”

Journal of Plant Protection Research

“…This reaction of Fayrouz may be due to it carrying Mi-1.1 and Mi-1.2 genes (Heikal et al 2008). Therefore, as a result of an irregular supply of water, nutrients, photosynthates and energy, the growth and development of leaf tissue and its constituents especially chlorophyll pigments are severely affected (Khan and Khan 1997;Strajnar et al 2012;Ahmad et al 2017). These effects were clearly seen on all susceptible genotypes compared to resistant genotypes.…”