نتایج جستجو برای: cotton plant

تعداد نتایج: 413095  

2011
Yunhe Li Jörg Romeis Ping Wang Yufa Peng Anthony M. Shelton

The ladybird beetle, Coleomegilla maculata (DeGeer), is a common and abundant predator in many cropping systems. Its larvae and adults are predaceous, feeding on aphids, thrips, lepidopteran larvae and plant tissues, such as pollen. Therefore, this species is exposed to insecticidal proteins expressed in insect-resistant, genetically engineered cotton expressing Cry proteins derived from Bacill...

2013
R. M. Esmail J. F. Zhang

The field experiments of the plant materials used in this investigation was carried out in Egypt during (2002-2005) while, 21 cotton genotypes were subjected to RAPD analysis using 53 UBC 10-mer RAPD primers in (2006) in Lab of Cotton Genetics and Breeding (Department of Agronomy and Horticulture) New Mexico State University, USA. Twenty three primers showed good amplification of cotton genome ...

Journal: :Journal of economic entomology 2012
J Gore A Catchot F Musser J Greene B R Leonard D R Cook G L Snodgrass R Jackson

The tarnished plant bug, Lygus lineolaris (Palisot de Beauvois), is an important pest of cotton, Gossypium hirsutum L., in the mid-southern United States. It is exclusively controlled with foliar insecticide applications, and sampling methods and thresholds need to be revisited. The current experiment was designed to establish a plant-based threshold during the flowering period of cotton develo...

Journal: :Molecular plant-microbe interactions : MPMI 2006
Slavica Djonović Maria J Pozo Lawrence J Dangott Charles R Howell Charles M Kenerley

The soilborne filamentous fungus Trichoderma virens is a biocontrol agent with a well-known ability to produce antibiotics, parasitize pathogenic fungi, and induce systemic resistance in plants. Even though a plant-mediated response has been confirmed as a component of bioprotection by Trichoderma spp., the molecular mechanisms involved remain largely unknown. Here, we report the identification...

2013
Steffen Hagenbucher Jörg Romeis

Introduction Cotton plants from the genus Gossypium are well defended against arthropod herbivores by a broad range of resistance mechanisms. These include direct mechanisms like trichomes and the production of toxins and indirect mechanisms like the emission of volatiles or extra-floral nectaries to attract and retain natural enemies1. One of the best understood resistance trait of cotton is t...

2017
Matthew Burrows Tolulope Morawo Henry Fadamiro John Trumble

Parasitoids utilize various sugar resources in nature, and rely on odor cues from plants to locate their food and hosts. However, lack of sugar in the diet may negatively impact odor reception in parasitoids, thus affecting foraging efficiency. We used Microplitis croceipes (Cresson) (Hymenoptera: Braconidae), a larval endoparasitoid of Heliothis virescens (F.) (Lepidoptera: Noctuidae), as a mo...

2010
FRANCIS E. CLARK

Search for methods of control or eUmination of the cotton root rot fungus (Phymatotrichum omnivorum (Shear) Dug.) in the alkahne soils of the Southwest has already continued for half a century. The literature involved has recently been reviewed by Rea (16)^ and by Streets (17). Nearly all of these discussions have been from the viewpoint of plant pathology or agronomy. Garrett (7) included this...

Journal: :Genetics 2003
D T Killough W R Horlacher

Deficiencies in the amount of chlorophyll in the cotton plant have been reported in relatively few instances. BALLS (1908) made a cross between an upland cotton with light green leaves and a dark green Egyptian cotton. He states that in the Fz generation, plants with light green leaves and plants with dark green leaves appeared in a 3 : 1 ratio. STROMAN and MAHONEY (1925) recovered two chloroph...

مرادی, روح اله, نصیری محلاتی, مهدی, کوچکی, علیرضا,

In order to study the potential of maize-cotton intercropping for improving radiation use efficiency (RUE), an experiment was conducted as a factorial arrangement based on completely randomized block design with three replications at experimental filed of Ferdowsi University of Mashhad. The experimental treatments were nitrogen in four levels (0, 50, 100 and 150 Kg N ha-1) and planting pattern ...

2014
Vivek Chaudhari C. Y. Patil

In this research, identification and classification of cotton diseases is done. The pattern of disease is important part where some features like the colour of actual infected image are extracted from image. There are so many diseases occurred on cotton leaf so the leaf color is different for different diseases. This paper uses k-mean clustering with Discrete Wavelet Transform for efficient pla...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید