نتایج جستجو برای: boll opening

تعداد نتایج: 50253  

Journal: :Journal of Agricultural and Applied Economics 1993

2002
G. R. Drevin L. Vincent

A number of subjective and objective methods have been proposed, and are in use, to determine the roundness of sedimentary rock particles. Roundness, which is one of three properties describing the shape of a particle, is a measure of the extent to which the corners and edges of a particle have been worn away. The objective roundness measures are mainly based on the Fourier transform. In this p...

Journal: :Indian journal of agricultural research 2022

Background: Gossypium hirsutum, the most widely cultivated crop in world has concurrent importance for both fibre quality and yield. Polygenes regulate cotton output a variety of factors affect characteristic. As result, it is essential to have thorough knowledge relationships between different component traits quality. Thus, aim study was framed know about correlation along with cause-and-effe...

Journal: :Anais da Academia Brasileira de Ciencias 2011
Francisco S Ramalho Paulo A Wanderley José B Malaquias Francisco S Fernandes Antônio R B Nascimento José C Zanuncio

This research studied the effect of temperature on the reproduction of Bracon vulgaris Ashmead, an ectoparasitoid of cotton boll weevil ( Anthonomus grandis Boheman) at constant temperatures of 20, 25 and 30ºC, 70 ± 10% RH and a photophase of 14 h. Females of the parasitoid produced a greater number of eggs when exposed to 25ºC (124.65 eggs) in relation to those exposed to 20 (43.40 eggs) and 3...

2017
Kyung Seok Kim Thomas W. Sappington KYUNG SEOK KIM THOMAS W. SAPPINGTON

An understanding of boll weevil (Anthonomus grandis Boheman) dispersal behavior is essential to characterizing and responding to the threat of migration into eradication zones. Genetic variation in boll weevil mitochondrial DNA (mtDNA) was sampled and analyzed to make inferences on the magnitude and geographic pattern of genetic differentiation among weevil populations from 20 locations across ...

In the present research, behavior of SPSPs with two rectangular openings and effect of strengthening different subpanels with various stiffener arrangements is investigated. In the next step, to investigate the effect of changing opening width on the trend of degradation shear stiffness and strength of the panel, the opening width is changed. In the third step, to study the effect of changing o...

Journal: :Annals of The Entomological Society of America 2021

Abstract The boll weevil, Anthonomus grandis Boheman (Coleoptera: Curculionidae), is an infamous pest of commercially cultivated cotton, Gossypium hirsutum L. (Malvales: Malvaceae). Once the most important agricultural in United States, weevil spurred unprecedented mobilization federal support and cooperation among stakeholders, culminating eventual eradication species from 98% its invasive ran...

2015
Rosemary A. L. Bayne Hazel L. Kinnell Shiona M. Coutts Jing He Andrew J. Childs Richard A. Anderson

During human fetal ovary development, the process of primordial follicle formation is immediately preceded by a highly dynamic period of germ cell and somatic cell reorganisation. This is regulated by germ-cell specific transcription regulators, by the conserved RNA binding proteins DAZL and BOLL and by secreted growth factors of the TGFβ family, including activin βA: these all show changing pa...

2015
Jie Chen Sibao Wan Huaihua Liu Shuli Fan Yujuan Zhang Wei Wang Minxuan Xia Rui Yuan Fenni Deng Fafu Shen

Soil salinity is a major environmental stress limiting plant growth and productivity. We have reported previously the isolation of an Apocynum venetum DEAD-box helicase 1 (AvDH1) that is expressed in response to salt exposure. Here, we report that the overexpression of AvDH1 driven by a constitutive cauliflower mosaic virus-35S promoter in cotton plants confers salinity tolerance. Southern and ...

2016
Charles P.-C. Suh Jose L. Perez Amy L. Berg John K. Westbrook

Two types of kill strips, Hercon Vaportape II and Plato Insecticide Strip, are used by boll weevil, Anthonomus grandis (Boheman), eradication programs in the United States (U.S.). Both types utilize dichlorvos as the killing agent and are typically replaced in traps on a four-week interval. However, published information on the duration of effectiveness of kill strips is not available and some ...

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