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dc:title "HTML Summary of #2066 \n\nTemperature Effects on Development and Reproduction of
\nHeterodera cajani on Pigeonpea\n\n";
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bibo:abstract "Effects of constant and fluctuating temperature on development and reproduction of\r\nHeterodera cajani were studied on pigeonpea cv. ICPL 87 in growth chambers at 10, 15, 20, 25, and\r\n30 C and in a greenhouse fluctuating between 22.2 and 37.8 C. Nematode penetration was greatest\r\n(P = 0.001) in roots at 25 C; there was no penetration at 10 C. The basal threshold temperature for\r\ndevelopment was calculated to be 11 C. Completion of one H. cajani generation required 17, 28, 35,\r\nand 66 days (323, 392, 315, and 264 degree-days) at 30, 25, 20, and 15 C, respectively, and 19 days\r\n(356 degree-days) at a fluctuating temperature. Survival was greater at 20 and 25 C than at 15 and\r\n30 C. The greatest (P = 0.05) number of females (17.9 females per root) were produced at 25 C,\r\ncompared with 13.2 at 20 C, 7.9 at 30 C, and 2.5 females at 15 C. Nematode reproduction was 1.6\r\nto 7.1 times greater at 25 C than at other temperatures. Emergence of juveniles from egg sacs and\r\ncysts was greater at 25 and 30 C than at 15 and 20 C. Equations were developed to predict nematode\r\ndevelopment rate, cumulative juvenile emergence from egg sacs and cysts, and population increases\r\nas influenced by temperature."^^xsd:string;
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dct:date "1994";
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skos:prefLabel "Pigeonpea"@en .
foaf:name "Society of Nematologists"^^xsd:string;
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foaf:familyName "Sharma"^^xsd:string;
foaf:givenName "S B"^^xsd:string;
foaf:name "S B Sharma"^^xsd:string;
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foaf:familyName "Singh"^^xsd:string;
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foaf:name "M Singh"^^xsd:string;
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bibo:issn "0022300X";
foaf:name "Journal of Nematology "^^xsd:string;
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