Resource Productivity in the Irrigated
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Volume 41 Number 4 ISSN 0258 - 7122 (Print) 2408 - 8293 (Online) Volume 41 Number 4 December 2016 BANGLADESH JOURNAL OF AGRICULTURAL RESEARCH AGRICULTURAL OF BANGLADESH JOURNAL December 2016 Please visit our website : www.bari.gov.bd Bangladesh Journal of AGRICULTURAL RESEARCH Volume 41 Number 4 December 2016 Editorial Board Contributors To Note Bangladesh Journal of Agricultural Research (BJAR) is a quarterly journal highlighting Editor-in Chief original contributions on all disciplines of M. Rafiqul Islam Mondal, Ph. D agricultural research (crop agriculture) conducted in any part of the globe. The 1st Associate Editors issue of a volume comes out in March, the 2nd Mohammod Jalal Uddin, Ph. D one in June, the 3rd one in September, and the 4th one in December. The full text of the Biresh Kumar Goswami, Ph. D journal is visible in www.banglajol.info. Md. Amjad Hossain, Ph. D Contributors, while preparing papers for the M. Zinnatul Alam, Ph. 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Bangladesh Agricultural Research Institute (BARI) Joydebpur, Gazipur 1701 Bangladesh BANGLADESH JOURNAL OF AGRICULTURAL RESEARCH Vol. 41 December 2016 No. 4 C O N T E N T S M. M. Alam, M. N. Islam, M. Z. Haque, R. Humayun and K. M. 583 Khalequzzaman Bio-rational management of whitefly (Bemisia tabaci) for suppressing tomato yellow leaf curl virus M. Khatun, Tanvir M. B. Hossain, M. A. Monayem Miah, S. Khandoker 599 and M. A. Rashid Profitability of sunflower cultivation in some selected sites of Bangladesh M. A. Mannan and N. Tarannum Infestation of four mustard varieties 625 by Lipaphis erysimi (Kalt) in relation to different levels of irrigation A. A. Begum, M. S. U. Bhuiya, S. M. A. Hossain, Amina Khatun and S. 633 K. Das Effect of fertilizer management on productivity of potato-hybrid maize intercropping system N. Ara, M. Moniruzzaman, Ferdousi Begum, M. Moniruzzaman and R. 647 Khatoon Genetic divergence analysis in papaya (Carica papaya L.) Genotypes M. A. Mazed, M. Z. Alam, M. R. U. Miah, M. S. Hossain and M. I. H. 657 Mian Identification of okra shoot and fruit borer infesting okra and their distribution in Bangladesh M. N. Islam, M. I. U. Sarkar, M. H. Ali, A. Islam and P. K. Saha IPNS 667 based fertilizer management for rice in coastal zone of Bangladesh L. Yasmin and M. A. Ali Use of organic amendment for management of 675 fusarium wilt of gladiolus Afroza Begum, M. W. Akon, M. S. Ahmed and S. N. Alam Purity 685 analysis of nine pesticides collected from eight locations in Bangladesh M. S. Hoq, Q. M. S. Islam, S. Khandoker and M. A. Matin 695 Opportunities of groundnut cultivation and marketing system in char lands of Bangladesh S. Akther, F. Ahmed, M. R. Islam, M. A. Hossen and A. H. M. M. 713 Rahman Talukder Effect of spacing and fertilizer management on the yield and yield attributes of mukhikachu (Colocasia esculenta Schott.) N. K. Dutta, S. N. Alam, M. Mahmudunnabi, M. F. Khatun and Y. J. 725 Kwon Efficacy of some new genearation insecticides and a botanical against mustard aphid and their toxicity to coccinellid predators and foraging honeybees N. C. Shil, M. A. Saleque, M. R. Islam and M. Jahiruddin Soil fertility 735 status of some of the intensive crop growing areas under major agro- ecological zones of Bangladesh S. S. Kakon, M. S. U. Bhuiya, S. M. A. Hossain, Q. Naher and Md. D. H. 759 Bhuiyan Effect of nitrogen and phosphorus on growth and seed yield of French bean Short communication K. S. Rahman, N. Mohammad, S. Nasrin, S. Kundu and M. M. Rahman 773 ICT management tool uses in agricultural extension services in Bangladesh ISSN 0258-7122 (Print), 2408-8293 (Online) Bangladesh J. Agril. Res. 41(4): 583-597, December 2016 BIO-RATIONAL MANAGEMENT OF WHITEFLY (Bemisia tabaci) FOR SUPPRESSING TOMATO YELLOW LEAF CURL VIRUS M. M. ALAM1, M. N. ISLAM2, M. Z. HAQUE3 R. HUMAYUN4 AND K. M. KHALEQUZZAMAN5 Abstract Whitefly (Bemisia tabaci) is the vector of tomato yellow leaf curl virus (TYLCV), is a serious pest of vegetables and other crops worldwide. The experiment was conducted at Bangladesh Agricultural Research institute (BARI) during two consecutive years of 2009 and 2010 to select a suitable bio-rational management practice against white fly, transmitting TYLCV. Treatments comprising tomato variety Ratan with diseased plant uprooting, spraying admire, applying admire on trap crop (marigold), spraying neem, sesame and mustard oil with trix and the untreated control were used in this experiment. The variety Opurba with similar materials as described above was used. Percent virus infected tomato plants ranged from 1.33 to 19.00 in two consecutive years, where the highest infection was recorded in control plot with variety Opurba and the lowest was recorded in variety Ratan treated with Admire. Consequently, the highest yield (47.70 and 52.36 t ha-1 in 1st and 2nd year, respectively) in the plots of variety Ratan treated with admire and the lowest yield was recorded in untreated control plots with variety Opurba (14.75 and 30.30 t ha-1) for the two consecutive years. A strong positive correlation was observed between whitefly population and % TYLCV infection for both the years and both varieties of tomato. While a negative correlation was observed between % TYLCV infection with number of fruits plants-1 and yield (t ha-1) for both the years and in both varieties of tomato. These results are consistent with the occurrences of TYLCV, which have been associated with the percent virus infection in relation to yield and yield contributing characters of tomato. Keywords: Disease, management, tomato, tomato yellow leaf curl virus (TYLCV) and white fly Introduction Tomato (Lycopersicon esculentum Mill.) is one of the most popular and widely grown vegetable crops of both tropics and subtropics of the world, belonging to the family Solanaceae. Tomato fruit is considered to be fairly high in vitamins A and C, having high cash value with potential for value-added processing. 1&2Senior Scientific Officer & Scientific Officer, Plant Pathology Division, Bangladesh Agricultural Research Institute (BARI), Joydebpur, Gazipur-1701, 3Senior Scientific Officer, Tuber Crop Research Centre (TCRC), BARI, Joydebpur, Gazipur-1701, 4Scientific Officer, Plant Pathology Section, RARS, BARI, Ishurdi, Pabna, 5Senior Scientific Officer, Spices Research Centre (SRC), BARI, Shibgonj, Bogra, Bangladesh. 584 ALAM et al. Recently, more emphasis has been given on tomato production not only as a source of vitamins, but also as a source of income and food security. The low yields of tomato are owing to (1) lack of improved varieties; (2) poor fruit set due to excessive rains and temperatures, and (3) insect pest and disease incidence. Viral diseases have been the most important constraint among tomato diseases (Varela, 1995). Its production is seriously hampered by tomato yellow leaf curl virus (TYLCV) with recorded yield loss of 93.95% (Gupta, 2000). The TYLCV is a disease that threatens both commercial tomato production in the field and kitchen gardens (Polston et al., 1999). Management techniques are dependent upon the ecology of the virus. The TYLCV is transmitted in a persistent manner by adult whiteflies (Bemisia tabaci) of the Family Aleyrodidae (Brown and Bird, 1995.). This virus has one of the largest described host ranges for Begomovirus and is capable of infecting more than 30 species in over 12 plant families. TYLCV can produce severe symptoms in tomato, it is also able to establish symptomless infections in both wild and non tomato crop species. Despite the lack of TYLCV-induced disease symptoms whiteflies were able to acquire TYLCV from infected pepper plants and transmit it to tomato (Polston et al., 2006). The symptomless but infected pepper plants can serve as virus reservoir for the acquisition and transmission of TYLCV. Other asymptomatic hosts of TYLCV may act as reservoirs in a similar manner.