ICAR Research Data Repository for Knowledge Management
DEVELOPMENT OF INTEGRATED FORMULATION/S OF EXTRACTS OF Tagetes patula AND MAGNESIUM FOR NEMATODE AND SECONDARY NUTRIENT MANAGEMENT IN HI-TECH CUCUMBER CULTIVATION
KrishiKosh
View Archive Info| Field | Value | |
| Title |
DEVELOPMENT OF INTEGRATED FORMULATION/S OF EXTRACTS OF Tagetes patula AND MAGNESIUM FOR NEMATODE AND SECONDARY NUTRIENT MANAGEMENT IN HI-TECH CUCUMBER CULTIVATION
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| Creator |
PRADEEP ADAKA
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| Contributor |
Anupama
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| Subject |
weeds, wheats, herbicides, control methods, crops, yields, land resources, broad leaf weeds, grain, planting
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| Description |
T-8469
Cucumber (Cucumis sativus) is an important high value vegetable grown under polyhouse conditions. Nematode and magnesium management are two most important aspects to realize higher productivity and superior quality in cucumber. Root-knot nematode, Meloidogyne incognita causes severe damage to the crop leading to dramatic yield losses. Marigolds (Tagetes species) established to possess toxic principles effective against nematode pests offer ecofriendly alternative to hazardous chemical nematicides. Besides nematodes, cucumber crop is highly sensitive to availability of magnesium in soil. The main objective of this thesis is to develop integrated formulation/s containing crude extracts of Tagetes patula and magnesium sulphate for nematode and magnesium management in polyhouse cultivated cucumber and to evaluate their performance under laboratory and field conditions. Integrated test formulations were prepared by incorporating hexane fraction of root extract of T. patula and magnesium sulphate in Pusa Hydrogel, a superabsorbent polymer used as carrier. Release study of extract and magnesium from test products in soil and water showed that release followed first order kinetics and test products containing extracts behaved as slow release formulations with T1/2 in water and soil 22.97 and 36.87 days respectively. Bioassay study showed that magnesium sulphate enhanced the nematicidal activity of extracts. Performance of test formulations vis-à-vis carbofuran and conventionally applied magnesium was evaluated in cucumber under polyhouse conditions. Leaf area, number of flowers per plant, percent magnesium in leaf tissue, leaf chlorophyll content and yield were determined. Integrated test formulations exhibited significant increase in yield over control. Similar trend was reflected in magnesium and chlorophyll content. The correlation between magnesium, yield, and chlorophyll was 83.2% and 85.3% respectively. In vivo bioefficacy evaluation of test products showed nematicidal activity (37.4%) comparable to carbofuran (47.83%). The findings indicate potential of hydrogel based integrated soil borne pest and nutrient management approach which needs to be further established under practical use situations. |
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| Date |
2016-11-23T10:58:23Z
2016-11-23T10:58:23Z 2011 |
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| Type |
Thesis
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| Identifier |
http://krishikosh.egranth.ac.in/handle/1/87181
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| Format |
application/pdf
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| Publisher |
IARI, DIVISION OF AGRICULTURAL CHEMICALS
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