Growth, yield components and chemical constituents of Stevia rebaudiana bert. as affected by humic acid and NPK fertilization rates
Other Title(s)
تأثير معدلات حمض الهيوميك و التسميد بالنيتروجين و الفسفور و البوتاسيوم على النمو و مكونات المحصول و المحتوى الكيميائي لنبات الإستيفيا
Joint Authors
al-Muji, Isam al-Din Ahmad Muhammad
Abd al-Qadir, Muhammad Ahmad Ibrahim
Muawwad, Ali Abd al-Hamid
Muhammad, Muna Hasan Mahmud
Source
Zagazig Journal for Agricultural Researches
Issue
Vol. 46, Issue 1 (28 Feb. 2019), pp.13-26, 14 p.
Publisher
Zagazig University Faculty of Agriculture
Publication Date
2019-02-28
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Topics
Abstract EN
Two field experiments were carried out during 2016 and 2017 consecutive seasons ata Private Farm at Mit-Ghamr Distrect, Dakahlia Governorate, Egypt, to study the effect of humic acidrates (0.0, 325.60, 651.2 and 976.80 g/fad.
), NPK fertilization rates [0.0, 25, 50, 75 and 100% of therecommended rate (RR)] and their interactions on growth, leaves and herb yield and some chemicalconstituents as well as active ingredients of stevia plants.
The obtained results referred that themaximum value for each of plant height, branch and leaf number/plant, total dry weight/plant, dryweight of leaves and herb/fad.
, total N, P, K and total sugar percentages as well as total chlorophyllcontent (a+b) were detected when plants were applied with the highest rate of humic acid (976.80g/fad.
) and fertilized with 75% RR of NPK, in most cases.
The main constituents of Stevia rebaudianaleaves as detected by high performance liquid chromatography-mass spectrometry (LC-MS) wereRebaudioside A, Rebaudioside B, Rebaudioside C, Dulcoside and Steviolbioside which increased withtreatment of 100% RR of NPK fertilizers combined with the highest rate of humic acid (976.80 g/fad.
)compared to control.
American Psychological Association (APA)
Muhammad, Muna Hasan Mahmud& Muawwad, Ali Abd al-Hamid& al-Muji, Isam al-Din Ahmad Muhammad& Abd al-Qadir, Muhammad Ahmad Ibrahim. 2019. Growth, yield components and chemical constituents of Stevia rebaudiana bert. as affected by humic acid and NPK fertilization rates. Zagazig Journal for Agricultural Researches،Vol. 46, no. 1, pp.13-26.
https://search.emarefa.net/detail/BIM-1023771
Modern Language Association (MLA)
Muhammad, Muna Hasan Mahmud…[et al.]. Growth, yield components and chemical constituents of Stevia rebaudiana bert. as affected by humic acid and NPK fertilization rates. Zagazig Journal for Agricultural Researches Vol. 46, no. 1 (2019), pp.13-26.
https://search.emarefa.net/detail/BIM-1023771
American Medical Association (AMA)
Muhammad, Muna Hasan Mahmud& Muawwad, Ali Abd al-Hamid& al-Muji, Isam al-Din Ahmad Muhammad& Abd al-Qadir, Muhammad Ahmad Ibrahim. Growth, yield components and chemical constituents of Stevia rebaudiana bert. as affected by humic acid and NPK fertilization rates. Zagazig Journal for Agricultural Researches. 2019. Vol. 46, no. 1, pp.13-26.
https://search.emarefa.net/detail/BIM-1023771
Data Type
Journal Articles
Language
English
Notes
-
Record ID
BIM-1023771