Journal of Agriculture Science and Technology, ( ISI ), Volume (17), No (6), Year (2015-10) , Pages (1517-1528)

Title : ( Effect of Nitrogen Fertilizer on Biological Parameters of the Cowpea Aphid and Associated Productivity Losses in Common Globe Amaranth )

Authors: Sayyede Afsane Hosseini , Mojtaba Hosseini , morteza goldani , Javad Karimi , hossein Madadi ,

Citation: BibTeX | EndNote

Reducing nitrogen fertility of floriculture plants is an effective tactic to pest management with decreasing host plant quality. Life table parameters and population growth rate of Aphis craccivora, as well as cosmetic and qualitative parameters losses associated with aphid infestation were evaluated in relation to N fertilization levels on Gomphrena globosa, under greenhouse condition. Four N fertilization levels (0, 30, 60 and 100 % of recommended 2 Kg/m3) were used. The results indicated that aphid’s intrinsic rate of natural increase on plants fertilized with 100% of the recommended N level was the highest. Abundance and population growth rate of aphid also positively correlated with N fertilization levels. The interactive effect of aphid population and N fertility significantly affected growth parameters of plants. In the absence of aphid, plant yield improved linearly with increasing N levels. However, aphid population highly decreased shoot to root ratio and the number of flowers in plants fertilized with 100% of the recommended N level. According to our findings, fine-tuning fertility to reduce A. craccivora population is a steadfast tactic to produce marketable globe amaranth ornamental plant.

Keywords

, Nitrogen fertilization, Aphid performance, Population growth, Plant yield, Aphis
برای دانلود از شناسه و رمز عبور پرتال پویا استفاده کنید.

@article{paperid:1044549,
author = {Hosseini, Sayyede Afsane and Hosseini, Mojtaba and Goldani, Morteza and Karimi, Javad and Hossein Madadi},
title = {Effect of Nitrogen Fertilizer on Biological Parameters of the Cowpea Aphid and Associated Productivity Losses in Common Globe Amaranth},
journal = {Journal of Agriculture Science and Technology},
year = {2015},
volume = {17},
number = {6},
month = {October},
issn = {1680-7073},
pages = {1517--1528},
numpages = {11},
keywords = {Nitrogen fertilization; Aphid performance; Population growth; Plant yield; Aphis craccivora},
}

[Download]

%0 Journal Article
%T Effect of Nitrogen Fertilizer on Biological Parameters of the Cowpea Aphid and Associated Productivity Losses in Common Globe Amaranth
%A Hosseini, Sayyede Afsane
%A Hosseini, Mojtaba
%A Goldani, Morteza
%A Karimi, Javad
%A Hossein Madadi
%J Journal of Agriculture Science and Technology
%@ 1680-7073
%D 2015

[Download]