Search Result of "Noppol Kateprasard"

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ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Field Plot Screening of Antagonistic fungi Used for Biocontrol of Tomato Root and Stem Rot Caused by Sclerotium rolfsii)

ผู้เขียน:Imgดร.จิระเดช แจ่มสว่าง, รองศาสตราจารย์, Imgนางกณิษฐา สังคะหะ, ImgNoppol Kateprasard

สื่อสิ่งพิมพ์:pdf

Abstract

Thirteen isolates of Trichoderma spp. and a single isolate of Penicillium sp. capable to control tomato stem rot caused by Sclerotium rolfsii under lath house test were screened for antagonistic activity against S. rolfsii under field plot condition. All test fungi were cultured on autoclaved sorghum seeds and prepared in powder formulation by using diatomite as a carrier. Mixture of fungal powder preparation, rice bran and organic compost in the ratio of 1:5:25 by weight was applied around the basal stem of 68-day-old tomato plants grown in natural field plots. All treated and non-treated (control) plants were inoculated with S. rolfsii-colonized sorghum seeds supplemented with rice bran. Ten isolates of Trichoderma spp. and a single isolate of Peinciilium sp. significantly (P=0.05) reduced disease incidence as compared to the control. Surviving plants of ten Trichoderma and single Penicillium treatments ranged from 26 to 63% over a control. Yields (fruit weight) of tomato plants treated with Trichoderma isolates T-21, T-23, T-31 and T-34 were significantly higher than the control.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 026, Issue 5, Jan 92 - Dec 92, Page 25 - 29 |  PDF |  Page 

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ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : In Vivo Screening of Antagonistic Fungi Used for Biocontrol of Sclerotium Stem Rot of Tomato)

ผู้เขียน:Imgนางกณิษฐา สังคะหะ, Imgดร.จิระเดช แจ่มสว่าง, รองศาสตราจารย์, ImgNoppol Kateprasard

สื่อสิ่งพิมพ์:pdf

Abstract

Thirty-eight isolates of fungi antagonistic to Sclerotium rolfsii on potato dextrose agar were screened for the isolates capable to control tomato stem rot under lath house condition. The test fungi were cultured on autoclaved sorghum seeds and prepared in powder formulation by using diatomite as a carrier. Mixture of fungal powder preparation, rice bran and organic compost in the ratio of 1:5:25 by weight was applied around the base of 70-day-old tomato plant grown in 6-inch-clay pot. Fungal treated plants were inoculated with S. rolfsii colonized sorghum seeds supplemented with rice bran. Twenty-four fungal isolates including Trichoderma Gliocladium group (23 isolates) and single isolate of Penicillium sp. could control disease effectively by enhancing significant (P=0.05) number of surviving plants over the control. Many effective isolates reduced the numbers of sclerotia produced in soil by 13.2 to 95.9% when compared to the control. Average percent colonization of sclerotia with Trichoderma-Gliocladium group ranged from 5.7 to 26.8 at 10 days after incubation.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 025, Issue 5, Jan 91 - Dec 91, Page 26 - 32 |  PDF |  Page