Malaysian Applied Biology Journal

  • Increase font size
  • Default font size
  • Decrease font size

37-1-05

E-mail Print PDF
Malays. Appl. Biol. (2008) 37(1): 37–39

EFFECT OF HUMIDITY IN THE SURVIVAL AND WEIGHT OF BOMBYX MORI LINN. LARVAE

PANDEY, P. and TRIPATHI, S.P.*

Entomology Research Lab, Department of Zoology, M. G. P. G. College, Gorakhpur - 273 001 INDIA
*E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it

ABSTRACT

The weight and survival of larvae of Bombyx mori was observed to significantly (P < 0.01) influenced by the variation in relative humidity between 55% to 80 % RH. The larval weight and survival of larvae were noticed to be minimum at 55% RH. Maximum larval weight and survival of larvae were recorded at 75% RH. Decrease in humidity from 80% to 75% RH caused increase in the larval weight and survival of larvae but further decreased below 75% RH caused gradual decline in larval performance of Bombyx mori.


Key words: Relative humidity, larval weight, survival of larvae, Bombyx mori

REFERRENCES

Anonymous 1987. Annual report (1986-87) Central Seri cultural search and Training Institute, Mysore 40 pp.

Buresell, E. 1970. An introduction to insect physiology, Academic Press, London and New Yark 241-250 pp.

Das, P.K. & Vijayraghavan, K. 1990. Studies on the effect of different mulberry varieties and season on the larval development and cocoon characters of silkworm Bombyx mori (L). Indian J. Seric., 29 (1): 44-53.

Krishmaswamy, S., Narsimhanan, M.N. & Suryanarayana, S.K. 1973. Sericulture Manual 2. Silkworm Rearing, erves F.A.O. Agric. Serves Bull. Rome., 15(2): 1-131.

Mazeed, Q. & Aziz, S.A. 1985. Influence of temperature and relative humidity on survival and development of hooper of Garstrimargus transversus. Thunb. (Orthoptera: Acrididae). Journal of Entomological Research, 9(1): 46-49.

Mutswmura 1975. Silkworm rearing. Text book of Tropical Sericulture, Japan Oversease Co- operative Volunteeres. Tokyo, Japan. 457 pp.

Rocsteen, M. 1974. The physiology of insect, Vol. 2, 2nd edition. Academic press, New Yark and London, 47-49 pp.

Sarkar, A.A., Haque, M.R., Rab, M.A. & Absar, N. 1995. Effect of feeding mulberry (Morus sp.) Lear’s supplemented with different nutrients to silkworm (Bombyx mori L.) Current Sciences, 69(2): 185-188.

Shan-Zang Ren, Yun-gen Miao, Zhi-wei Chen & Bharathi, D. 2005. Comperative studies of PGE1 and PGF2A on some enzyme activities and metabolism of silkworm, Bombyx mori L. Journal of Advanced Zoology, 26(1): 1-6.

Sharma, D.K., Dutta, S.K., Khanikar, D.P. & Dutta, L.C. 1988. Effect of larval food plant on certain life parameters of Eri silkworm Philosamia ricini. Hult. Journal of Agricultural Sciences. Society of North East India, 11(1): 5- 9.

Singh, S.P. & Das, A.B. 1980. Seasonal variation and acclimation of respiratory metabolism of Periplaneta americana. Comparative Physiology and Ecology, 2(3): 133-138.

Sokal, R. & Rohlf, J. 1973. Introduction to Biostatistics, W.H. Freeman & Co., San Fransisco. 161 pp.

Tanaka, Y. 1964. Sericology, Central Silk Board, Bombay, 206-208 pp.

Upadhyay, V.B. & Gaur, K.P. 2002. Effect of ecological factors on the performance of Bombyx mori L. larvae. Zoology Society of India, 91-104.

Upadhyay, V.B. & Mishra, A.B. 2002. Influence of relative humidity on the nutritive potential of mulberry silkworm Bombyx mori L. larvae. Journal of Advanced Zoology, 23(1): 54-58.

Vishwanth, G.K., Jayaramaiah, M. & Shankar, M.A. 1987. Feeding of the mulberry Lear’s supplemented with secondary and micro- nutrient through foliage on the rearing performance of the silkworm, Bombyx mori L. Mysore Journal of Agricultural Sciences, 37(2): 175-179.

Wu Pang-Chuan & Cheu Da-Chaung 1983. Silkworm Rearing, F.A.O.Agricultural Services Bulletin 73\2 Rome, Italy. 8-12 pp.

Yakoyama 1962. Synthesised Science of Sericulture, Central Silk Board, Bombay, India, 210-223 pp.

Zaman, A., Qader, M.A., Islam, S., Baeman, A.C., Alam, M.S. & Islam, M. 1996. Effect of feeding tukra affected mulberry leaves economic characters of silkworm Bombyx mori L. Pakistan Journal of Zoology, 28(2): 169-171.
 

Latest MABJ Issue

Vol 50(1) June 2021

 

Table of content

Latest news!

Malaysian Applied Biology is listed in the databases and indexed in Web of Science Master Journal List, Elsevier, Mycite, Biosis, Zoological Records, UDLedge Life Science Index, CNKI, J-Gate and CABI.

Malaysian Applied Biology is indexed in Scopus since issue 41(1) 2012.

According to Scopus CiteScore 2020, MABJ ranks 165 out of 203 Malaysian journals in terms of yearly impact factor.


Scopus Citescore