Effect of Fungicide Treatments on Seed Quality of Maize (Zea Mays L.) During Storage PDF Download
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Author: S. Sewak
Publisher:
ISBN:
Category :
Languages : en
Pages : 38
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Author: S. Sewak
Publisher:
ISBN:
Category :
Languages : en
Pages : 38
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Author: Sadiki Delphin Kandolo
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Category :
Languages : en
Pages :
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Fungicides have been developed to protect plants against diseases and pests, which cause serious problems such as the loss of germination and vigour. The aim of this study was to test the germination and vigour of maize (Zea mays L.) seeds treated with several fungicides Apron Star 42 WS (difenoconazole, thiamethoxam, and metalaxyl-m), Apron XL (mefenoxam), Celest XL (fludioxonil, mefenoxam) and thiram in the laboratory. In the greenhouse, the efficacy of fungicide treatment was evaluated in soil inoculated with Fusarium graminearum. The control consisted of untreated seeds. Germination and vigour were evaluated according to the International Seed Testing Association (1ST A) rules. The results from the standard gennination tests showed that all the fungicide treated seeds did not differ to the untreated control. The conductivity of solute leakage was read following slow and fast imbibition. Maize seeds treated with Apron Star 42 WS, Celest XL, Apron XL and thiram improved or maintain vigour, which was indicated by a reduced or equivalent solute leakage following fast imbibition when compared with the untreated control. The good performance of fungicide treated seed expressed during conductivity test after fast imbibition correlated with the tetrazolium. All the fungicide treated seeds maintained the same viability as the untreated control following fast imbibition. After 6 h after fast imbibition, Apron Star 42 WS, Celest XL and Apron XL treated seeds maintained similar germination percentages when compared to the untreated control with the exception of thiram treated seeds that exhibited a decline in seed viability. There was reduction in vigour in all the fungicide treated seeds fo llowing 24 and 40 h fast imbibition as illustrated by the reduction in germination percentage below the acceptable level (70%) when compared with the untreated control. The greenhouse study showed that all the fungicide treated seeds maintained the same emergence percentage in both inoculated and uninoculated soil with the exception of thiram treated seeds, where emergence improved in inoculated soil when compared to the untreated control. Apron Star 42 WS and Celest XL reduced the disease caused by F. graminearum in the inoculated soil. This study also revealed that the application of Apron Star 42 WS, Celest XL and thiram to seeds improved both the shoot and root dry mass of plants in the inoculated soil.
Author: H.S. Girisha
Publisher:
ISBN:
Category :
Languages : en
Pages : 83
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Author: Jose Luis Lozano
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Category :
Languages : en
Pages : 456
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Author: Auratai Tiewsomboonkit
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Category : Corn
Languages : en
Pages : 178
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Author: Mohammed Abdul Hakim Siddiquee
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Category : Sweet corn
Languages : en
Pages :
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Author: Alinke Heste Labuschagne
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Category :
Languages : en
Pages :
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Access to this dissertation is restricted until 2015-04-12.
Author: Isaka M. Mashauri
Publisher:
ISBN:
Category : Corn
Languages : en
Pages : 210
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Author: Zambwe Chinseu
Publisher:
ISBN:
Category : Corn
Languages : en
Pages : 224
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Author: Talat Parween
Publisher: Academic Press
ISBN: 0128176156
Category : Science
Languages : en
Pages : 332
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Book Description
Ecophysiology of Pesticides: Interface between Pesticide Chemistry and Plant Physiology is the first comprehensive overview of the physical impact of this increasingly complex environmental challenge. Designed to offer state-of-the-art knowledge, the book covers pesticide usage and its consequences on the ecophysiology of plants. It includes the challenge of policymaking in pesticide consumption and a risk analysis of conventional and modern approaches on standard usage. In addition, it summarizes research reports pertaining to the physio-ecological effects of pesticides, discusses the environmental risks associated with the over-utilization of pesticides, and covers pesticide usage on the micro-flora and rhizosphere. This book is a valuable reference for plant ecologists, plant biochemists and chemists who want to study pesticide consumption and its biochemical and physiological evaluation effects on plants. It will also be of immense help to university and college teachers and students of environmental biotechnology, environmental botany and plant ecophysiology. Contains comprehensive coverage of topics on pesticides, environmental ecology and strategies for pesticide control Presents all data available on the intensification of pesticide stress on non-target organisms Includes an appendix of products containing active ingredients
