Life table for Heterodera cajani on pigeonpea (Cajanus cajan)

Singh, M. and Sharma, S.B. (1995) Life table for Heterodera cajani on pigeonpea (Cajanus cajan). Fundamental Applied Nematology, 18 (4). pp. 309-313.

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Abstract

Heterodera cajani is an important nematode pest of pigeonpea, Cajanus cajan. A life table for H. cajani was developed on pigeonpea at 25 oc. Mortality rates of H. cajani life stages were very high during egg and J2 stages prior to root penetration. Mortality of subsequent Iife stages was low and virtually constant. Egg laying began on the 23rd day and stopped on the 31 st day after the start of the cohort. Mean generation rime was 26.9 days and net reproductive rate 15.5 times per generation. The true intrinsic rate (rm ) was 0.102, and the first few days of egg laying contributed more to the value of rm than did other age intervals. Assuming a finite rate of natural increase, H. cajani popwation would mwtiply 1.107 times a day, and double itself in about 7 days

Item Type: Article
Author Affiliation: International Crops Research Institute for the Semi-Arid Tropies (ICRISAT), Patancheru P. o., Andhra Pradesh 502324, India
Subjects: Plant Protection
Plant Protection > Pests
Divisions: Pigeonpea
Depositing User: Mr T L Gautham
Date Deposited: 05 May 2011 03:21
Last Modified: 05 May 2011 03:21
URI: http://eprints.icrisat.ac.in/id/eprint/1961

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