نتایج جستجو برای: chlorosis

تعداد نتایج: 1302  

Journal: :Plant physiology 1943
F L Wynd

Introduction Sudan grass is one of the most important forage crops in the Rio Grande Valley, Texas. Growth is luxuriant and rapid, and the high yields suggest that the nutrients in the soil are eminently satisfactory for the growth of this species. Repeated cuttinigs may be made, often at intervals as short as 8 to 10 days, until 3 to 10 crops have been harvested. The leaves from the latter cro...

2016
Michail Iakovidis Paulo J. P. L. Teixeira Moises Exposito-Alonso Matthew G. Cowper Theresa F. Law Qingli Liu Minh Chau Vu Troy Minh Dang Jason A. Corwin Detlef Weigel Jeffery L. Dangl Sarah R. Grant

We identified loci responsible for natural variation in Arabidopsis thaliana (Arabidopsis) responses to a bacterial pathogen virulence factor, HopAM1. HopAM1 is a type III effector protein secreted by the virulent Pseudomonas syringae strain Pto DC3000. Delivery of HopAM1 from disarmed Pseudomonas strains leads to local cell death, meristem chlorosis, or both, with varying intensities in differ...

Journal: :Phytopathology 2010
Xiao-Chun Sun William Bockus Guihua Bai

Tan spot, caused by Pyrenophora tritici-repentis, is an economically important foliar disease of wheat worldwide. Eight races of the pathogen have been characterized on the basis of their ability to cause necrosis or chlorosis in a set of differential wheat lines. Race 1 produces two host-selective toxins, Ptr ToxA and Ptr ToxC, that induce necrosis and chlorosis, respectively, on leaves of sen...

Journal: :The American Journal of the Medical Sciences 1853

Journal: :The American Journal of the Medical Sciences 1845

Journal: :به نژادی نهال و بذر 0
پوریا همدانیان p. hamedanian university college of agriculture and natural resources, university of tehran, karaj, iranپردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج عبدالهادی حسین زاده a. hosseinzadeh university college of agriculture and natural resources, university of tehran, karaj, iranپردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج توحید نجفی میرک t. najafi mirak seed and plant improvement institute, karaj, iran، موسسه تحقیقات اصلاح و تهیه نهال و بذر، کرج امیرحسین نوربخش a. h. nourbakhsh seed and plant improvement institute, karaj, iranپردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج

twenty-two bread wheat cultivars along with susceptible (sholeh) and resistant (azadi) control cultivars were evaluated for resistance to russian wheat aphid of two growth stages including seedling and stem elongation in greenhouse. five adult aphids per plant were used for infestation. leaf chlorosis at seedling and stem elongation stages and leaf rolling at seedling stage were measured. other...

Journal: :DMW - Deutsche Medizinische Wochenschrift 1887

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