LAJU PERTUMBUHAN INTRINSIK Helopeltis antonii SIGN. PADA BUAH MENTIMUN SEBAGAI PAKAN ALTERNATIF

DJATNIKA K., I. WAYAN LABA, W. R. ATMADJA

Abstract


Intrinsic growth rate of Helopeltis antonii Sign. (Hemip- tera; Miridae) on cucumberfruit as an alternativefood

The study on the intinsic rate of natural increase of Helopeltis antonii Sign. On cucumber ruit as an alternative food was conducted in the pest and disease Laboratory, Research Institute for Spice and Medicinal Crops Bogor rom January o June 1998. Helopeltis antonii is well known as the pest of cashew, cacao and tea The objectives of the experiment wee to study the reproduction rate and fecundity of H antonii. The insects were collected from the field of cashew tees in Bogor. A pair of newly emerged adult was eleased into a plastic jar containing cucumber fruit. The fruit was changed daily until the insects died. A newly emerged nymph was eaed individually in a plastic cup containing a peace of cucumber ruit which was renew every 2 days. Birch exponential equation: N,=No.e" was used for analyzing data. The results showed that intrinsic rate (r) of//, antonii was 0.106. Net eproduction rate (Rn) was 18.952 times for each generation. The generation period was 27.747 days. The value of finite rate of increase was 1.1 12 times/day. After one month and two months a pair of insect would multiply to 24 and 578 pairs, espectively.


Keywords


Intinsic growth rate;Helopeltis antonii;Cucumis saiivus L.

Full Text:

PDF


DOI: http://dx.doi.org/10.21082/littri.v4n4.1998.115-118

Refbacks

  • There are currently no refbacks.




Copyright (c) 2017 Jurnal Penelitian Tanaman Industri

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.


Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.




P-ISSN: 0853-8212
E-ISSN: 2528-6870

Pusat Penelitian dan Pengembangan Perkebunan

(Indonesian Center for Estate Crops Research and Development)

Jln. Tentara Pelajar No 1, Kampus Penelitian Cimanggu

Bogor 16111 Indonesia

Phone: +62251-8313083

Fax: +62251-8336194

Email: littri_puslitbangbun@yahoo.co.id



View My Stats