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Effect of nitrogen rates on the whitefly (Bemisia tabaci) population infesting chilli (Capsicum annum L.)

Bemisia tabaci (Gennadius) is considered the most important whitefly species harmful to agriculture. Experiments were conducted at MARDI Station in Jalan Kebun, Klang, Selangor from 9 September 2006 to 11 November 2007. The objective of this study was to evaluate the population of whitefly on chilli...

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Main Authors: M. Zurina,, M.N. Mohamad Roff,, A.B. Idris,
Format: Article
Language:English
Published: Universiti Kebangsaan Malaysia 2010
Online Access:http://journalarticle.ukm.my/7433/1/26_Ayiesah.pdf
http://journalarticle.ukm.my/7433/
http://www.ukm.my/jsm/english_journals/vol39num6_2010/contentsVol39num6_2010.html
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spelling my-ukm.journal.74332016-12-14T06:44:04Z http://journalarticle.ukm.my/7433/ Effect of nitrogen rates on the whitefly (Bemisia tabaci) population infesting chilli (Capsicum annum L.) M. Zurina, M.N. Mohamad Roff, A.B. Idris, Bemisia tabaci (Gennadius) is considered the most important whitefly species harmful to agriculture. Experiments were conducted at MARDI Station in Jalan Kebun, Klang, Selangor from 9 September 2006 to 11 November 2007. The objective of this study was to evaluate the population of whitefly on chilli plants fertilised with different rates of nitrogen (0, 33, 43, 53 g/plant). The results showed that high rates of nitrogen treatment significantly (P<0.05) increased B. tabaci immature population as compared to lower rate treatments. The mean number of B. tabaci immature per plant stratum was significantly different (P<0.05) among plant strata as well as among the treatments. Generally, the mean number of B. tabaci eggs and larvae was significantly (P<0.05) greater in the upper strata than in the middle and lower plant strata. Whereas, the mean number of B. tabaci pupa was significantly greater in the lower strata than in the upper and middle plant strata. The mean number of B. tabaci immature was significantly different (P<0.05) among the sampling periods in all treatment. Generally, B. tabaci population was significantly greater during the early season and gradually declined as the season progressed except during the third and seventh week after transplanting. Universiti Kebangsaan Malaysia 2010-12 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/7433/1/26_Ayiesah.pdf M. Zurina, and M.N. Mohamad Roff, and A.B. Idris, (2010) Effect of nitrogen rates on the whitefly (Bemisia tabaci) population infesting chilli (Capsicum annum L.). Sains Malaysiana, 39 (6). pp. 913-920. ISSN 0126-6039 http://www.ukm.my/jsm/english_journals/vol39num6_2010/contentsVol39num6_2010.html
institution Universiti Kebangsaan Malaysia
building Perpustakaan Tun Sri Lanang Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Kebangsaan Malaysia
content_source UKM Journal Article Repository
url_provider http://journalarticle.ukm.my/
language English
description Bemisia tabaci (Gennadius) is considered the most important whitefly species harmful to agriculture. Experiments were conducted at MARDI Station in Jalan Kebun, Klang, Selangor from 9 September 2006 to 11 November 2007. The objective of this study was to evaluate the population of whitefly on chilli plants fertilised with different rates of nitrogen (0, 33, 43, 53 g/plant). The results showed that high rates of nitrogen treatment significantly (P<0.05) increased B. tabaci immature population as compared to lower rate treatments. The mean number of B. tabaci immature per plant stratum was significantly different (P<0.05) among plant strata as well as among the treatments. Generally, the mean number of B. tabaci eggs and larvae was significantly (P<0.05) greater in the upper strata than in the middle and lower plant strata. Whereas, the mean number of B. tabaci pupa was significantly greater in the lower strata than in the upper and middle plant strata. The mean number of B. tabaci immature was significantly different (P<0.05) among the sampling periods in all treatment. Generally, B. tabaci population was significantly greater during the early season and gradually declined as the season progressed except during the third and seventh week after transplanting.
format Article
author M. Zurina,
M.N. Mohamad Roff,
A.B. Idris,
spellingShingle M. Zurina,
M.N. Mohamad Roff,
A.B. Idris,
Effect of nitrogen rates on the whitefly (Bemisia tabaci) population infesting chilli (Capsicum annum L.)
author_facet M. Zurina,
M.N. Mohamad Roff,
A.B. Idris,
author_sort M. Zurina,
title Effect of nitrogen rates on the whitefly (Bemisia tabaci) population infesting chilli (Capsicum annum L.)
title_short Effect of nitrogen rates on the whitefly (Bemisia tabaci) population infesting chilli (Capsicum annum L.)
title_full Effect of nitrogen rates on the whitefly (Bemisia tabaci) population infesting chilli (Capsicum annum L.)
title_fullStr Effect of nitrogen rates on the whitefly (Bemisia tabaci) population infesting chilli (Capsicum annum L.)
title_full_unstemmed Effect of nitrogen rates on the whitefly (Bemisia tabaci) population infesting chilli (Capsicum annum L.)
title_sort effect of nitrogen rates on the whitefly (bemisia tabaci) population infesting chilli (capsicum annum l.)
publisher Universiti Kebangsaan Malaysia
publishDate 2010
url http://journalarticle.ukm.my/7433/1/26_Ayiesah.pdf
http://journalarticle.ukm.my/7433/
http://www.ukm.my/jsm/english_journals/vol39num6_2010/contentsVol39num6_2010.html
_version_ 1643737129261465600
score 13.211869

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