Gas exchange characteristics and chlorophyll pigment of oil palm seedlings under influence of bioinoculants

Suneetha V., . and Ramachandrudu K, . and Suresh K., . Gas exchange characteristics and chlorophyll pigment of oil palm seedlings under influence of bioinoculants. pp. 16-23. ISSN 1511-2780

The performance of bioinoculants and chemical fertilisers on net photosynthetic rate (Pn) transpiration rate (E) stomatal conductance (Gs) inter cellular CO‚‚ concentration (Ci) chlorophyll reducing sugars and total phenols in leaves and total seedling dry matter was assessed in oil palm seedlings grown in nursery for 12 months. Bioinoculants viz. Azotobacter chroococcum Azospirillum brasilense Bacillus megaterium Frateuria aurantia and Glomus aggregatum were used individually combindly and integrated with chemical fertilisers. There were significant differences among the treatments used in experiment for various physiological and biochemical characters. Of all the treatments integrated use of microbial fertilisers with 25 of recommended dose of chemical fertilisers (RDF) has emerged as the best promising treatment in influencing the above mentioned characters. The results of the study clearly indicated that minimal dose of chemical fertilisers (25 RDF) may be required for exploiting the best possible growth benefits from bioinoculants.

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Abstract

The performance of bioinoculants and chemical fertilisers on net photosynthetic rate (Pn) transpiration rate (E) stomatal conductance (Gs) inter cellular CO‚‚ concentration (Ci) chlorophyll reducing sugars and total phenols in leaves and total seedling dry matter was assessed in oil palm seedlings grown in nursery for 12 months. Bioinoculants viz. Azotobacter chroococcum Azospirillum brasilense Bacillus megaterium Frateuria aurantia and Glomus aggregatum were used individually combindly and integrated with chemical fertilisers. There were significant differences among the treatments used in experiment for various physiological and biochemical characters. Of all the treatments integrated use of microbial fertilisers with 25 of recommended dose of chemical fertilisers (RDF) has emerged as the best promising treatment in influencing the above mentioned characters. The results of the study clearly indicated that minimal dose of chemical fertilisers (25 RDF) may be required for exploiting the best possible growth benefits from bioinoculants.

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Item Type:	Article
AGROVOC Term:	Elaeis guineensis
AGROVOC Term:	Oil palm
AGROVOC Term:	Seedlings
AGROVOC Term:	Leaves
AGROVOC Term:	Inoculation
AGROVOC Term:	Fertilizer application
AGROVOC Term:	Inorganic fertilizers
AGROVOC Term:	Nursery grounds
AGROVOC Term:	Azotobacter
AGROVOC Term:	Azospirillum brasilense
Depositing User:	Mr. AFANDI ABDUL MALEK
Last Modified:	24 Apr 2025 00:54
URI:	http://webagris.upm.edu.my/id/eprint/8964

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