Population of rhizobacteria on roots of different sweet potato Ipomoea batatas.L varieties grown on different soils

Maira L, . and Radziah Othman, . (1998) Population of rhizobacteria on roots of different sweet potato Ipomoea batatas.L varieties grown on different soils. [Proceedings Paper]

Rhizobacteria are bacteria that aggressively colonise plant roots. Population of rhizobacteria is generally influenced by chemical and physical factors and types of plant Rhizobacteria that form colonies on root crops and stimulate the crop development is termed as Plant Growth Promoting Rhizobacteria PGPR. A study was conducted to determine the population of rhizobacteria from different varieties of sweet potato grown on different soils. Sweet potato root samples were taken from MARDI Serdang Serdang series Puchong Bungor series and Sepang peat. Nineteen varieties of sweet potato were studied. Fresh roots were washed cut and shaken vigorously with sterilized water. Results showed that there were differences ini populations and groups of rhizobacteria on different sweet potato varieties grown on different soils. The population of rhizobacteria from different varieties grown at MARDIs Farm range from 1.49 x 10 superscript 9 to 7.02 x 10 superscript 9 cfu/g fresh root. The highest population was on the Kaganesengan variety and the lowest population was on the Gendut variety grown on peat at Sepang. Rhizobacterial population of Gendut from Puchong was higher than that grown at MARDIs farm and Sepang. Rhizobacterial population in Puchong area was generally higher than that at MARDI and Sepang. Soil pH at MARDIs farm ranged from 4.03 and 5.85. The highest pH was from soil grown with Kaganesengan variety and the lowest was with Gendut variety. Generally rhizobacterial population decreased with a decrease in soil pH.

Full text available from:

Abstract

Rhizobacteria are bacteria that aggressively colonise plant roots. Population of rhizobacteria is generally influenced by chemical and physical factors and types of plant Rhizobacteria that form colonies on root crops and stimulate the crop development is termed as Plant Growth Promoting Rhizobacteria PGPR. A study was conducted to determine the population of rhizobacteria from different varieties of sweet potato grown on different soils. Sweet potato root samples were taken from MARDI Serdang Serdang series Puchong Bungor series and Sepang peat. Nineteen varieties of sweet potato were studied. Fresh roots were washed cut and shaken vigorously with sterilized water. Results showed that there were differences ini populations and groups of rhizobacteria on different sweet potato varieties grown on different soils. The population of rhizobacteria from different varieties grown at MARDIs Farm range from 1.49 x 10 superscript 9 to 7.02 x 10 superscript 9 cfu/g fresh root. The highest population was on the Kaganesengan variety and the lowest population was on the Gendut variety grown on peat at Sepang. Rhizobacterial population of Gendut from Puchong was higher than that grown at MARDIs farm and Sepang. Rhizobacterial population in Puchong area was generally higher than that at MARDI and Sepang. Soil pH at MARDIs farm ranged from 4.03 and 5.85. The highest pH was from soil grown with Kaganesengan variety and the lowest was with Gendut variety. Generally rhizobacterial population decreased with a decrease in soil pH.

[error in script]

Item Type:	Proceedings Paper
AGROVOC Term:	SWEET POTATOES
AGROVOC Term:	SOIL TYPES
AGROVOC Term:	RHIZOBACTERIA
AGROVOC Term:	ROOTS
AGROVOC Term:	STERILIZATION
AGROVOC Term:	VARIETIES
AGROVOC Term:	POPULATION DECREASE
AGROVOC Term:	MALAYSIA
Geographical Term:	MALAYSIA
Depositing User:	Ms. Norfaezah Khomsan
Last Modified:	24 Apr 2025 05:27
URI:	http://webagris.upm.edu.my/id/eprint/16260

Actions (login required)

View Item