diagnose foliar da gravioleira (annona muricata l.): efeito da posição de ramos e folhas part of plant to sample leaves for nutritional status evaluation in soursop (annona muricata l.)
التشخيص الورقي لشجرة القشطة الشائكة (*Annona muricata* L.): تأثير موضع الأفرع والأوراق؛ جزء النبات المخصص لأخذ عينات الأوراق لتقييم الحالة التغذوية في القشطة الشائكة (*Annona muricata* L.)
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Abstract
The lack of information in literature about leaf sampling soursop plant in particular, the definition of the leaf position at the tree top and leaves on the branches is still a limiting factor for the diagnosis of this cultivation. Aiming to determine which is the suitable part of the plant for leaf sampling and evaluate the nutritional status of the soursop plants, an experiment was developed on the experimental farm Embrapa - CNPAT, at Pacajus-CE, in the period from March to April, 2003. One collected leaves from three positions at the top (upper third, medium third and lower third) and three positions on the branches (apical part leaves, basal and medium) and one determined the tenor of P, K, Ca, Mg, S, Fe, Cu, Zn and Mn. The results allow to suggest that the mineral levels of the medium part of leaves at the top of the trees on the medium position of the branch, reflect best nutritional status of the plant.
ما زال نقص المعلومات في الأدبيات العلمية حول أخذ عينات أوراق نبات القشطة الشائكة، وبخاصة تحديد موضع الورقة في تاج الشجرة والأوراق على الأفرع، يشكل عاملاً مقيداً للتشخيص التغذوي لهذا المحصول. بهدف تحديد الجزء الملائم من النبات لأخذ عينات الأوراق وتقييم الحالة التغذوية لنباتات القشطة الشائكة، نُفِّذت تجربة في المزرعة التجريبية التابعة لـ Embrapa - CNPAT في باكاجوس-سيارا، في الفترة الممتدة من مارس إلى أبريل 2003. جُمعت عينات أوراق من ثلاثة مواضع في التاج (الثلث العلوي، والثلث الأوسط، والثلث السفلي) وثلاثة مواضع على الأفرع (أوراق الجزء القمي، والقاعدي، والأوسط)، وتَمّ تقدير محتوى عناصر P وK وCa وMg وS وFe وCu وZn وMn. وتسمح النتائج باقتراح أن المستويات المعدنية في أوراق الجزء الأوسط من تاج الأشجار في الموضع الأوسط من الفرع، تعكس الحالة التغذوية للنبات بأفضل شكل.
| Reference Key |
lima2007cinciadiagnose
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|---|---|
| Authors | ;Rosiane de Lourdes Silva de Lima;Gilvan Barbosa Ferreira;Olmar Baller Weber;Jairo Osvaldo Cazetta |
| Journal | information and software technology |
| Year | 2007 |
| DOI |
10.1590/S1413-70542007000500007
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| URL | |
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