THE USE OF SOME ORGANIC AND BIO-FERTILIZERS FOR EARLIGRANDE PEACH TREES FERTILIZATION UNDER NORTH SINAI CONDITIONS A: VEGETATIVE GROWTH AND LEAF CHEMICAL CONTENT

2018 ◽  
Vol 7 (2) ◽  
pp. 99-114
Author(s):  
Abdaallah El-Kharafen ◽  
Hany El-Alakmy ◽  
Roqia Ahmed ◽  
Mohamed Sourour ◽  
Mohamed ElDeep
Keyword(s):  
Vegetative Growth ◽  
Chemical Content ◽  
Peach Trees ◽  
North Sinai

The growth of young peach trees following infection by the viruses of peach rosette and decline disease

1977 ◽  
Vol 28 (3) ◽  
pp. 441 ◽  
Author(s):  
PR Smith ◽  
TF Neales
Keyword(s):  
Leaf Area ◽  
Vegetative Growth ◽  
Virus Disease ◽  
Dry Weight ◽  
Growing Season ◽  
Dual Infection ◽  
Bud Burst ◽  
Decline Disease ◽  
Peach Trees

The vegetative growth of young peach trees was reduced greatly in the growing season following a dual infection with Prunus necrotic ringspot and prune dwarf viruses which caused the disease known as 'peach rosette and decline'. Ninety-two days after bud burst, the dry weight and leaf area of cv. Elberta scions were reduced by c. 60% as a result of infection, while the reduction in cv. Golden Queen was about 93%. The latter cultivar thus appears to be the less tolerant of infection by this virus disease.

Effects of Limb Girdling on Growth and Development of Competing Fruit and Vegetative Tissues of Peach Trees

1984 ◽  
Vol 11 (2) ◽  
pp. 49 ◽  
Author(s):  
IR Dann ◽  
RA Wildes ◽  
DJ Chalmers
Keyword(s):  
Growth Regulators ◽  
Vegetative Growth ◽  
Aging Process ◽  
Prunus Persica ◽  
Soluble Sugars ◽  
Reproductive Development ◽  
Reproductive Growth ◽  
Potential Growth ◽  
Vegetative Tissues ◽  
Peach Trees

The distribution of current assimilates between competing zones of potential growth in the peach tree (Prunus persica (L.) Batsch) was studied using limb girdling, which altered the balance between reproductive growth and vegetative growth in a similar manner to the aging process. Fruit matured earlier, and leaf senescence and abscission were advanced in girdled limbs. which supported normal fruit loads but had only half the leaf area. Lateral growth and secondary thickening were reduced by 50% but vegetative growth approached normal rates at times when fruit growth was minimal, indicating that girdling reduced the ability of vegetative growth to compete with reproductive growth for assimilates. Starch and soluble sugars did not accumulate above the girdles. The data are consistent with the hypothesis that girdling alters the balance between endogenous growth regulators which favour either vegetative or reproductive development. We suggest that the initial effects on the girdled limb are attributable to accumulation of growth regulators produced above the girdle. The reduced flow of growth regulators to the roots eventually results in lowered levels of root-produced hormones which subsequently causes effects throughout the tree.

scholarly journals Enhancing Cucurbita pepo Growth, Productivity, and Fruit Quality using Bacilli Strains and Cyanobacteria Treatments

2021 ◽  
pp. 1-11
Author(s):  
Ashmawi Elsayed Ashmawi ◽  
Amira M El-Emshaty ◽  
Gehan Mohamed Salem ◽  
Mona Fekry Ghazal
Keyword(s):  
Vegetative Growth ◽  
Cucurbita Pepo ◽  
Field Experiments ◽  
Growth Parameters ◽  
Available Phosphorus ◽  
Growing Seasons ◽  
Plant Chemical ◽  
Chemical Content ◽  
Soil Rhizosphere ◽  
Chemical Contents

Two successful field experiments were carried out during 2020and 2021 growing seasons to evaluate the effect of bio fertilizers; Bacillus amyloliquifaciens (BA), Bacillus megaterium (BM) and cyanobacteria inoculation on the vegetative growth, growth parameters and plant chemical content of Cucurbita pepo (Squash) crop. The study of mixed inoculation with both Bacillus strains, and cyanobacteria was found to improve vegetative growth, plant chemical contents and positive microbial activity in the soil Rhizosphere in comparison to un-inoculated plants. Soil available nutrients (N and K) increased significantly with BA and BM combined with cyanobacteria while available phosphorus gave most increase with BM.

scholarly journals HE USE OF SOME ORGANIC AND BIO-FERTILIZERS FOR EARLIGRANDE PEACH TREES FERTILIZATION UNDER NORTH SINAI CONDITIONS b: Fruiting and fruit quality

2018 ◽  
Vol 7 (2) ◽  
pp. 115-130
Author(s):  
Abdaallah El-Kharafen ◽  
Hany El-Alakmy ◽  
Roqia Ahmed ◽  
Mohamed Sourour ◽  
Mohamed ElDeep
Keyword(s):  
Fruit Quality ◽  
Peach Trees ◽  
North Sinai

scholarly journals Overcoming Iron Chlorosis in Olive and Peach Trees Using a Low-pressure Trunk-injection Method

HortScience ◽  
1993 ◽  
Vol 28 (3) ◽  
pp. 192-194 ◽  
Author(s):  
R. Fernández-Escobar ◽  
D. Barranco ◽  
M. Benlloch
Keyword(s):  
Chlorophyll Content ◽  
Vegetative Growth ◽  
Ferrous Sulfate ◽  
Olea Europaea ◽  
Low Pressure ◽  
Iron Chlorosis ◽  
Injection Method ◽  
Latex Tube ◽  
Trunk Injection ◽  
Peach Trees

Chlorotic `Manzanillo' olive (Olea europaea L.) trees and `Maycrest' peach [Prunus persica (L.) Batsch] trees were injected with Fe solutions using an apparatus that consisted of a plastic injector and a pressurized latex tube containing the solution to be injected. Injections were made on various dates from Sept. 1987 to July 1988. All treatments increased chlorophyll content compared to that of the control. Ferrous sulfate was the most effective Fe compound in alleviating chlorosis; its effect lasted for two seasons in peach and for at least three seasons in olive. Also, ferrous sulfate increased vegetative growth and affected cropping the year following injections. Ferrous sulfate at 0.5% to 1% is recommended to reduce the risk of foliar burning. The injection method effectively introduced Fe compounds into olive and peach trees.

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