Sand culture studies of teak (Tectona grandis) in relation to nutritional deficiency symptoms growth and vigour

Varghese V., . and Gopikumar K., . Sand culture studies of teak (Tectona grandis) in relation to nutritional deficiency symptoms growth and vigour. pp. 46-61. ISSN 0128-1283

This study was conducted at the Kerala Agricultural University India. The objective was to induce symptoms of deficiency of various nutrient elements (N P K Mg S Zn and Mo) in seedlings of teak grown in sand culture. The effects of nutrients on the growth vigour and nutrient uptake pattern were also investigated. Symptoms in seedlings deficient of nutrients include leaf discoloration necrosis scorching defoliation and stunted growth. Seedlings that received complete nutrient solution were healthy and had dark green foliage. Shoot and root growth of the seedlings deficient of nutrients were affected. All the fractions of chlorophyll of treated seedlings particularly nitrogen-deficient seedlings reduced considerably. Visual symptoms of nitrogen-deficient seedlings also coincided with the reduction in foliar levels of the concerned element. There was a remarkable improvement in growth of seedlings and the visual symptoms when the deficient element was again supplied to the affected seedlings.

Full text available from: Official URL: http://www.frim.gov.my/v1/JTFSOnline/jtfs/v16n1/46...

Abstract

This study was conducted at the Kerala Agricultural University India. The objective was to induce symptoms of deficiency of various nutrient elements (N P K Mg S Zn and Mo) in seedlings of teak grown in sand culture. The effects of nutrients on the growth vigour and nutrient uptake pattern were also investigated. Symptoms in seedlings deficient of nutrients include leaf discoloration necrosis scorching defoliation and stunted growth. Seedlings that received complete nutrient solution were healthy and had dark green foliage. Shoot and root growth of the seedlings deficient of nutrients were affected. All the fractions of chlorophyll of treated seedlings particularly nitrogen-deficient seedlings reduced considerably. Visual symptoms of nitrogen-deficient seedlings also coincided with the reduction in foliar levels of the concerned element. There was a remarkable improvement in growth of seedlings and the visual symptoms when the deficient element was again supplied to the affected seedlings.

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Item Type:	Article
AGROVOC Term:	Teak
AGROVOC Term:	Tectona grandis
AGROVOC Term:	Nutrient deficiencies
AGROVOC Term:	Soil nutrient content
AGROVOC Term:	Defoliation
AGROVOC Term:	Discoloration
AGROVOC Term:	Necrosis
AGROVOC Term:	Scorch
AGROVOC Term:	Chlorophylls
AGROVOC Term:	Biomass
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 06:27
URI:	http://webagris.upm.edu.my/id/eprint/22180

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