research centers


Search results: Found 2

Listing 1 - 2 of 2
Sort by

Article
Variation in concentrations of some elements in leaves and fruits of Guava (Psidium guajava L.) and soil irrigated with polluted water from Abu Al-Khaseeb River, Southern Iraq

Author: F.J. M. Al-Imaraha ; A.A. Mahmooda ; A.A. Abbasb and K.F. Abbas
Journal: Marsh Bulletin مجلة الاهوار ISSN: 18169848 Year: 2008 Volume: 3 Issue: 2 Pages: 104-113
Publisher: Basrah University جامعة البصرة

Loading...
Loading...
Abstract

During the cultivation period, growth and ripeness of Guava (Psidium guajava) plant in the fields of Abu Al-Khasseb, Southern Iraq were studied for estimation of chemical elements contents, Cd, Co, Cu , Fe, Mn and Zn in leaves and fruits of Guava irrigated by water from Abu Al-Khaseeb river polluted by crude oil spilled in Shatt Al-Arab River. Two sites were selected, Bab Debagh and Abu Mugherah. The study was conducted throughout two seasons, for the periods,Oct.2003-March 2004 and March 2004–August 2004. The first season is characterized by bud blooming and plants were irrigated with rain water, while the second season is characterized by growth of leaves and buds, bloom and ripeness, water used in this stage for irrigation was from Abu Al-Khaseeb River. Moreover a clear model was used during these seasons as a control irrigated with tab water. Some chemical elements were estimated by adopting the Atomic Absorption Spectrophotometry in the leaves and fruits of Guava plant. Highest differences in the concentrations of studied elements were recorded in leaves and fruits before and after ripeness during the first season and for both sites. While concentrations were increased for all studied elements except Cd in leaves after fruit ripeness in both sites, and all elements except Cd, Fe and Mg in fruits after ripeness in Bab Debagh site, while elements Cd, Cu and Mg decreased with no change in Co and Fe and increase in Zn only in fruits after ripeness for Abu Mugherah site. Guava fruit characterized by diameter, length in cm and weight in gm as 12.6, 5.4 and 30.36 respectively for Bab Debagh site and 15.5, 7.2 and 45.3 respectively for Abu Mugherah site during the first season. For the second season, elements showed decrease in leaves except Co after ripeness of fruits and increased in fruits except Co and Mn with no effect for Cd in Bab Debagh site and decreased in elements except Cd with no effect for Fe in leaves while in fruits, elements were decreased except an increase of Zn with no effect for Cd and Cu. Fruits characterized as 17.7, 8.1 and 59.8 respectively in Bab Debagh site and 19, 9.6 and 83.8 respectively in Abu Mugherah site. Statistical analysis showed non significant differences for Cd and Cu between leaves and fruits for both study sites. Significant differences were recorded for Co and Mn between leaves and fruits, while for Fe significant differences were recorded between leaves and fruits for Bab Debagh only, and for Zn there were significant differences between leaves before ripeness compared with after ripeness and both significantly different from fruits whether before or after ripeness. During the second period of study , Co didn't record any significant differences, but Cu and Fe reported significant differences between leaves before and after ripeness from fruits after ripeness, while Fe and Mn didn't show any significant differences for leaves before and after ripeness from fruits before and after ripeness. It is concluded that concentrations of chemical elements showedalteration levels in leaves and fruits of Guava plant during the cultivation period.


Article
Effect of Fertiliyzation by chelated iron (Fe-EDTA) on growth of guava seedlings c.v. Mahally
تأثير التسميد بالحديد المخلبي (Fe-EDTA) في نمو شتلات الجوافة Psidium guajava L. صنف المحلي

Loading...
Loading...
Abstract

This experiment was conducted to study the effect of three levels of Fe-EDTA (0 , 200 , 300) mg/seedling , and two times application of chelated iron and their interactions on physical, chemical properties of guava seedling.The results indicated that adding different levels of (Fe-EDTA) had significant effect in increasing of studied properties. The (200 mg Fe-EDTA/ seedling) treatment gave higher average highest of plant 135.3cm , number of branches 21.83 , length of branch 115.8cm number of leaf 135.30 , area of leaf 23.43cm2 , leaves content of chlorophyll 0.1733% and leaves content of carbohydrate 2.490%. Statistical analytical results showed that there were a significant differences between the time of Fe-EDTA application, the second time of application was significantly increased studied properties compared with first time of application. So the interactions between average of Fe-EDTA and time of application had significantly increased the studied properties and (200 mg Fe-EDTA/ seedling second time) treatment gave higher average of studied properties compared with other treatments.

نفذت الدراسة لدراسة تأثير ثلاث مستويات من الحديد المخلبي (0 و 200 و 300) ملغم/شتلة وموعدي إضافتها وتداخلاتهما في بعض الصفات الفيزوكيميائية لشتلات الجوافة صنف المحلي. بينت نتائج الدراسة أن لإضافة الحديد المخلبي (Fe-EDTA) تأثير معنوي في زيادة معدل الصفات الفيزيائية والكيميائية قيد الدراسة فقد حققت المعاملة (200 ملغم حديد مخلبي/شتلة) أعلى معدلات لارتفاع النبات 135.30سم ، لعدد الافراع 21.83 ، لطول الفرع 115.80سم ، لعدد الأوراق 135.30 ، لمساحة الورقة 23.43 سم2 ، للمحتوى الكلوروفيلي 0.1733% وللمحتوى الكاربوهيدراتي2.490%. أما بالنسبة لتأثير موعد التسميد فقد أوضحت الدراسة تفوق الموعد الثاني 1/3/2011 على موعد الإضافة الأول 1/2/2011 معنوياً في زيادة معدلات الصفات الفيزيوكيميائية قيد الدراسة. وقد أظهرت النتائج أن التداخل بين مستويات الحديد المخلبي ومواعيد الإضافة تأثير معنوي في زيادة معدلات الصفات الفيزوكيميائية قيد الدراسة، مقارنة بتأثير الحديد المخلبي لوحده أو مواعيد التسميد لوحدها. وقد حققت المعاملة 200 ملغم حديد مخلبي/شتلة/موعد الإضافة الثاني أعلى زيادة معنوية في بعض الصفات الفيزيائية والكيميائية وبواقع 144.3سم لارتفاع النبات، 24.33 لعدد الافرع، 131.30سم لطول الفرع، 141.30 ، لعدد الأوراق25.09سم2 ، لمساحة الورقة ، 0.1767% للمحتوى الكلوروفيلي و2.563% للمحتوى الكاربوهيدراتي مقارنة بالمعاملات الأخرى قيد الدراسة.

Listing 1 - 2 of 2
Sort by
Narrow your search

Resource type

article (2)


Language

Arabic (1)

English (1)


Year
From To Submit

2012 (1)

2008 (1)