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Influence of Pinching and Potassium Sources on Growth and Flowers Yield of Calendula officinalis

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Last updated: 01 Jan 2025

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Abstract

 THIS study was planned to increase natural colors of Calendula officinalis using natural treatments. Two field experiments were carried out during the two successive seasons of 2010/2011 and 2011/2012, to study the effect of different Potassium sources (Potassium sulphate, 50% K2SO4+K-Mag, 50% K2SO4 + Salicylic Acid (SA) , 50% K2SO4 +K-Mag +SA, Flespar +K-mag or Potassein) and pinching (at 0.0,7.5,10.0 and 12.5 cm) on Calendula officinalis. Data indicated that, all Potassium sources had positive effects in increasing growth characters and flower yield. The treatments of 50% Potassium sulphate with K-Mag and Salicylic Acid were the most effective treatments for growth and carotenoids content of flowers petals. On the other hand, pinching at 10 cm from the soil surface of the main stem was the best for different growth parameters and flowers yield. The best interaction treatments were treatments of 50% Potassium sulphate with K-Mag + SA, and pinching at 10 cm achieved improving growth, flowers yield with 60% over than the control (average of two seasons), obtaining the highest content of natural pigment and saving 50% of Potassium sulphate fertilizer and its negative impacts on both human health and environment.

DOI

10.21608/ejoh.2015.1321

Keywords

Calendula officinalis, potassium, pinching, Carotenoids

Volume

42

Article Issue

Issue 1 The 2nd International Conference on Horticultural Crops, 15-18 March ( ICHC- Egypt 2015)

Related Issue

260

Issue Date

2015-06-01

Receive Date

2014-10-15

Publish Date

2015-06-30

Page Start

639

Page End

654

Print ISSN

1110-0206

Online ISSN

2357-0903

Article File

EJOH_Volume 42_Issue Issue 1 The 2nd International Conference on Horticultural Crops, 15-18 March ( ICHC- Egypt 2015)_Pages 639-654.pdf

PDF . 602.4kB

Link

https://ejoh.journals.ekb.eg/article_1321.html

Detail API

https://ejoh.journals.ekb.eg/service?article_code=1321

Order

42

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Original Article

Type Code

137

Publication Type

Journal

Publication Title

Egyptian Journal of Horticulture

Publication Link

https://ejoh.journals.ekb.eg/

MainTitle

Influence of Pinching and Potassium Sources on Growth and Flowers Yield of Calendula officinalis

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Type

Article

Created At

22 Jan 2023