نتایج جستجو برای: among pome fruit trees

تعداد نتایج: 1294725  

In calcareous and alkaline soils, which include most of Iran soils, iron deficiency is prevalent. The main cause of iron deficiency chlorosis is high pH of soil. Among fruit trees, peach shows high sensitivity to iron deficiency. Chelated iron fertilizers with a great ability to make iron soluble and readily absorbed by the plant are used for iron deficiency. For this purpose, an experiment bas...

Journal: :Revista de biologia tropical 2006
Oscar J Rocha Braulio Vílchez Ana L Araya Anchetta

The existence of mast fruiting has not been well documented in the Neotropics. The occurrence of a mast fruiting episode in the population of the tree Peltogyne purpurea in the Osa Peninsula of Costa Rica is described. In February and March of 2000 most of the trees of this species produced a large fruit crop, compared with 1995-1999, when the number of fruit producing trees was very low or zer...

Journal: :فقه و اصول 0

the person, who, on his way, encounters a fruit-bearing tree belonging to others, can eat from its fruit as much as fulfilling his need, provided that his reaching to that tree has been accidental rather than on purpose; and that he should not take away any fruit with him and damage a tree or a fruit. in this respect, the owner’s consent is not considered a sine qua non. the reason for this rul...

2015
Ana I. de Castro Reza Ehsani Randy C. Ploetz Jonathan H. Crane Sherrie Buchanon

Laurel wilt is a lethal disease of plants in the Lauraceae plant family, including avocado (Persea americana). This devastating disease has spread rapidly along the southeastern seaboard of the United States and has begun to affect commercial avocado production in Florida. The main objective of this study was to evaluate the potential to discriminate laurel wilt-affected avocado trees using aer...

Journal: :علوم باغبانی ایران 0
حسن حاج نجاری دانشیار بخش تحقیقات باغبانی، مؤسسه تحقیقات اصلاح و تهیه نهال و بذر مصطفی مرادی دانشجوی سابق کارشناسی ارشد، دانشکده کشاورزی دانشگاه آزاد اسلامی واحد کرج

the level of self-compatibility of the 48 pre-selected apple cultivars, using their own pollen, the genetic capacity of flowering, flower-fruit conversion ratio, multiple fruit fall and bearing preservation during 4 successive biological growth stages were examined through two main treatments of self and cross pollination, in horticulture research station of kamalshahr in karaj (iran). the frui...

Journal: :journal of ornamental plants 2015
ahmad dadashpour sasan sadegh hasani seyed fazel mirahmadi

orchard intensification is motivated by the desire to produce fruit early in the life of the orchard to rapidly recover establishment costs. intensification is possible using dwarfing rootstocks that control tree size, induce early cropping and produce large quantities of fruit compared to the amount of wood produced. therefore, this study attempts to compare some yield and fruit properties of ...

Journal: :Monthly Weather Review 1919

Journal: :Emirates Journal of Food and Agriculture 1993

Journal: :Phytopathology 2010
Steven A Lee Henry K Ngugi Noemi O Halbrendt Grace O'Keefe Brian Lehman James W Travis Judith P Sinn Timothy W McNellis

The gram-negative bacterium Erwinia amylovora is the causal agent of fire blight, the most destructive bacterial disease of rosaceous plants, including apple and pear. Here, we compared the virulence levels of six E. amylovora strains (Ea273, CFBP1367, Ea581a, E2002a, E4001a, and HKN06P1) on apple trees and seedlings. The strains produced a range of disease severity, with HKN06P1 producing the ...

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