Journal of e-Science Letters - Feed https://scienceletters.researchfloor.org ScienceLetter & International journals Fri, 08 May 2026 11:53:41 +0000 hourly 1 https://wordpress.org/?v=6.9.4 https://scienceletters.researchfloor.org/wp-content/uploads/2024/12/cropped-logo-32x32.jpg Orientational Response of Trichogramma Japonicum to the Synomone from Rice Yellow Stem Borer-Damaged and Healthy Plants - Journal of e-Science Letters https://scienceletters.researchfloor.org 32 32 Orientational Response of Trichogramma Japonicum to the Synomone from Rice Yellow Stem Borer-Damaged and Healthy Plants https://scienceletters.researchfloor.org/orientational-response-of-trichogramma-japonicum-to-the-synomone-from-rice-yellow-stem-borer-damaged-and-healthy-plants/ Fri, 07 Aug 2020 11:35:00 +0000 admin S. Merrin Stephy* http://scienceletters.researchfloor.org/?p=694

Olfactometer studies on the attraction of the egg parasitoid, Trichogramma japonicum to the synomones extracted from the YSB-damaged rice plants revealed that attraction was maximum in the order of YSB-damaged TN 1, YSB-damaged TKM 6, healthy TN 1 and healthy TKM 6. YSB-damaged TN 1 attracted 21.50 numbers of adult egg parasitoid as compared to 17.50 numbers in YSB-damaged TKM 6. The GC-MS analysis of hydrocarbon profile showed that in healthy TKM 6, 16 hydrocarbon compounds were identified. The hydrocarbon compounds n-Hexadecanoic acid, 9,12,15-Octa decatrienoic acid and 9-Octadecenoic acid had more peak area. Eighteen hydrocarbon compounds have been identified in YSB-damaged TKM 6. Two compounds namely n-Hexadecanoic acid and 9,12-Octa decadienoic acid had more peak area. 2-Methoxy-4-vinylphenol, Tetradecanal, Hexadecanoicacid, 9, 12-Octa decadienoic acid and Octadecanoic acid were present only in the YSB-damaged TKM 6 and not in healthy TKM 6. Three compounds Decane, 9,12,15-Octa decatrienoic acid and 9-Octadecenoic acid were detected only in healthy TKM 6 and not in YSB-damaged TKM 6. Twenty three hydrocarbon compounds were detected in the YSB-damaged TN 1. Two compounds n-Hexadecanoic acid and 9, 12-Octadecadienoic acid had more peak area. Healthy TN 1 had 13 hydrocarbon compounds. Seven compounds viz., Decane, Dodecanoic acid, 9,12,15-Octa decatrienoic acid, 9-octadecenoic acid, Docosane and 2 methyl hexacosane were present in healthy TN 1 and not in YSB-damaged TN 1.

 https://scienceletters.researchfloor.org/orientational-response-of-trichogramma-japonicum-to-the-synomone-from-rice-yellow-stem-borer-damaged-and-healthy-plants/ Olfactometer studies on the attraction of the egg parasitoid, Trichogramma japonicum to the synomones extracted from the YSB-damaged rice plants revealed that attraction was maximum in the order of YSB-damaged TN 1, YSB-damaged TKM 6, healthy TN 1 and healthy TKM 6. YSB-damaged TN 1 attracted 21.50 numbers of adult egg parasitoid as compared to 17.50 numbers in YSB-damaged TKM 6. The GC-MS analysis of hydrocarbon profile showed that in healthy TKM 6, 16 hydrocarbon compounds were identified. The hydrocarbon compounds n-Hexadecanoic acid, 9,12,15-Octa decatrienoic acid and 9-Octadecenoic acid had more peak area. Eighteen hydrocarbon compounds have been identified in YSB-damaged TKM 6. Two compounds namely n-Hexadecanoic acid and 9,12-Octa decadienoic acid had more peak area. 2-Methoxy-4-vinylphenol, Tetradecanal, Hexadecanoicacid, 9, 12-Octa decadienoic acid and Octadecanoic acid were present only in the YSB-damaged TKM 6 and not in healthy TKM 6. Three compounds Decane, 9,12,15-Octa decatrienoic acid and 9-Octadecenoic acid were detected only in healthy TKM 6 and not in YSB-damaged TKM 6. Twenty three hydrocarbon compounds were detected in the YSB-damaged TN 1. Two compounds n-Hexadecanoic acid and 9, 12-Octadecadienoic acid had more peak area. Healthy TN 1 had 13 hydrocarbon compounds. Seven compounds viz., Decane, Dodecanoic acid, 9,12,15-Octa decatrienoic acid, 9-octadecenoic acid, Docosane and 2 methyl hexacosane were present in healthy TN 1 and not in YSB-damaged TN 1.

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