eprintid: 51753
rev_number: 18
eprint_status: archive
userid: 5867
dir: disk0/00/05/17/53
datestamp: 2023-10-04 15:21:15
lastmod: 2023-11-23 13:57:18
status_changed: 2023-10-04 15:21:15
type: journalp
metadata_visibility: show
doclang: en
projects: ch-fibl-cotton
projects: ch-fibl-crop-protection
projects: ch-fibl-crops-plant-breeding
projects: in
refereed: yes
budget: 0
docurl: https://www.mdpi.com/2077-0472/13/7/1402
altloc: https://www.fibl.org/en/themes/projectdatabase/projectitem/project/1449
publicfulltext: TRUE
creators_name: Aherkar, Shradha S.
creators_name: Deshmukh, Surendra B.
creators_name: Konde, Nitin M.
creators_name: Paslawar, Adinath N.
creators_name: Joshi, Tanay
creators_name: Messmer, Monika M.
creators_name: Riar, Amritbir
title: Studies on Morphophysiological and Biochemical Parameters for Sucking Pest Tolerance in Organic Cotton
ispublished: pub
subjects: 1plantprod
subjects: 8planthealth
keywords: organic, cotton, sucking pests, trichome density, gossypol glands, total sugar, total nitrogen, crude protein, Abacus, FiBL65141, India-SGF cotton
abstract: The demand for organic cotton is primarily driven by manufacturers and brands with a corporate focus on environmental and social responsibility. These entities strive to be responsible stewards by seeking organic cotton, which not only offers environmental benefits but also provides softer, more durable, and longer-lasting clothing. Unlike conventional cotton, organic cotton is processed without the use of harsh chemicals, making it more comfortable for individuals with sensitive skin. A study was conducted at the Center of Organic Agriculture Research and Training Center, Department of Agronomy, Dr. PDKV, Akola, Maharashtra, India to evaluate 22 cotton genotypes, including control samples, using a randomized block design with three replications during the kharif (June–October) season in the years 2019–2020 and 2020–2021, under complete organic conditions. During the initial year of the study (2019–2020), visual observations were made to assess the incidence of sucking pests on the cotton genotypes’ leaves, including the top, middle, and bottom portions. The observations indicated promising results, leading to a more detailed study in the subsequent year (2020–2021). This extended study identified several tolerant genotypes to sucking pests, such as AV-G11, PA-255, GA-8004, AV-C14, and AV-G13 from the arboreum species, as well as AKH-09-5, a hirsutum cultivar. Among the recorded data, it was found that the lowest mean aphid population occurred at 90 days after sowing (DAS), with only 1.53 aphids per leaf. Similarly, the lowest mean populations of Cicadellidae, thrips, and whitefly were recorded at 0.75, 0.97, and 0.63 per leaf, respectively, all at 30 DAS. Microscopic analysis of trichome density and gossypol glands revealed a negative and significant correlation with Aphis gossypi (aphids), Cicadellidae sp. (Cicadellidae), and Thrips tabaci (thrips). However, a positive and significant correlation was found with Bemesia tabaci (whitefly). Furthermore, the estimation of total soluble sugar using the Anthrone method, total nitrogen, and crude protein showed positive and significant correlations with aphids, Cicadellidae, and thrips, but negative, significant correlations with whitefly. The findings indicate that higher trichome density provides greater resistance to sucking pest infestation. It was concluded that G. arboreum genotypes exhibit greater tolerance to sucking pests compared to G. hirsutum varieties. This implies that G. arboreum varieties may require less intensive pest management, aligning with organic farming principles. The discovery of these genotypes opens up possibilities for utilizing them as sustainable and pest-resistant options in cotton cultivation, promoting environmentally friendly and organic farming practices in cotton fiber production.
date: 2023
date_type: published
publication: Agriculture
volume: 13
number: 7
full_text_status: public
pagerange: 1-18
id_number: https://doi.org/10.3390/agriculture13071402
contact_email: info.suisse@fibl.org
conf_subm: not_subm
voa3r_agrovoc_lang: en
voa3r_agrovoc_value_string: cotton
voa3r_agrovoc_value_uri: http://aims.fao.org/aos/agrovoc/c_1926
fp7_project: no
access_rights: info:eu-repo/semantics/openAccess
citation:    Aherkar, Shradha S.; Deshmukh, Surendra B.; Konde, Nitin M.; Paslawar, Adinath N.; Joshi, Tanay; Messmer, Monika M. and Riar, Amritbir   (2023) Studies on Morphophysiological and Biochemical Parameters for Sucking Pest Tolerance in Organic Cotton.   Agriculture, 13 (7), pp. 1-18.        
document_url: /id/eprint/51753/1/aherkar-etal-2023-agriculture-Vol13-Issue7-No01402-p1-18.pdf