%0 Journal Article
%@ 2231-3443
%A Rana, D K
%A Mishra, S P
%A Vishal, A
%A Katlam, B P
%A Jaba, J
%A Sathish, K
%D 2020
%F icrisat:11758
%I Science Domain
%J International Research Journal of Pure and Applied Chemistry
%K Fecundity,  Growth  and  development,  Longevity,   Azuki bean  weevil, Bruchids and Cicer arietinum (L.)
%N 23
%P 161-165
%T Biology and Morphometrics of Pulse Beetle, Callosobruchus chinensis (L.) on Chickpea
%U http://oar.icrisat.org/11758/
%V 21
%X The  biology  and  morphometrics  of  pulse  beetle, Callosobruchus  chinensis  were  studied on chickpea cultivar  ICCV 2 under  laboratory  conditions at ICRISAT, Patancheru, Telangana, India   during  2018-19  and  2019-2020.  The  experiments  were  carried  out  in  the   BOD  incubator  at temperature of 28 ± 2ºC and relative humidity of 65 to 70%. The life cyc  le of C. chinensis   included four stages  egg, grub, pupae and adult. The data revealed that eggs   incubation period   in 4-5 days, the grub  stage consisted  of four instars and  its development ranged from 20  -25 days, pupation lasted  for  6-  7  days,  whereas,  female  adult longevity  ranged  from  9  -12  days.  The  morphometric   measurements revealed that the average length and breadth of eggs were   0.62 ± 0.03mm and 0.34   ± 0.02 mm respectively.  The length and breadth (mm) of four grub  instars G1, G2, G3 and G4    were 0.58 ±   0.02 and 0.30 ± 0.01, 1.53 ± 0.06 and 0.92 ± 0.04, 2.71 ± 0.10 and 1.47 ± 0.06, 3.59 ±   0.14 and 1.96 ± 0.08 respectively. The average length and breadth of pupa were 3.72 ± 0.12 mm,  2.15 ± 0.09 mm. Whereas, the length and breadth (mm) of    adult male and female bruchids were   3.87  ±  0.08, 2.07  ±  0.05  and  4.23  ±  0.14  , 2.31  ±  0.07  respectively.  The  total  life  cycle  of   C.chinensis  ranged from 33  -42 days
%Z Laboratory  assistance  of  Mr.  Rajender  Kumar   and   Rajendra   and   Venkatramana   during   experiments  is  gratefully  acknowledged.  Partial   Funding for research was provided by CGIAR_  -  Grain  Legume  and  Dry  land  Cereals  (CGIAR  -  GLDC).