Morphological characterization of rice accessions - off planting season 2014

2014

Accessions of Malaysian rice germplasm conserved at MARDI possess a wide genetic diversity useful for the development of new rice varieties. Morphological characterization data plays an important role to identify potential rice accessions for plant breeding. MARDI conducts the morphological characterization of its accessions during regeneration. This dataset contains information collected during the regeneration of rice accessions in the off planting season of 2014.

Partner
Crop name
Rice
Number of accessions
30
Number of traits
42
Start of evaluation
1 April 2014
End of evaluation
31 August 2014
Dataset metadata

Dataset creators

Data curator
Mohd Shukri Mat Ali MARDI
Data manager
Site Noorzuraini Abd. Rahman MARDI
Data collector
Mohd Ramdzan Othman MARDI
Data collector
Nur Idayu Abd. Rahim MARDI
Data digitizer
Muhammad Izzat Farid Musaddin MARDI
Data digitizer
Azuan Amron MARDI

Dataset use and licensing


Data and resources

Rice characterization data

Morphological Dataset OS2014.xlsx

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Dataset metadata

Metadata.xlsx

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MCPD passport data

MCPD - e91792d2-2e98-4d54-b620-69fa4fe9ebc8.xlsx

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Data provider contact information

Phone number
+603-89536991
Address
MyGeneBank, Malaysian Agricultural Research and Development Institute (MARDI), Persiaran MARDI-UPM, 43400 Serdang, Selangor, Malaysia

Other Metadata

Date of dataset
2 December 2016
Related resources

http://agrobis.mardi.gov.my/agrobis_v2/

Metadata create date
22 October 2018
Metadata updated date
22 October 2018
Published in Genesys
22 October 2018
Locations
Location
Seberang Perai, Penang, Malaysia
Date of evaluation
1 April 201431 August 2014
Traits observed

Awn color is determined by eye inspection. Time: at maturity

The presence of awn recorded based on awning characters. Time: after full heading

To observed the secondary branching bearing the spikelets. Time: near maturity

Maturity is recorded as the duration in days from seeding to the time when more than 80% of the grains on the panicles are fully ripened. When that information is not available, maturity is estimated by adding 30 days to the duration from seeding to full heading. Time: at maturity

The leaves below the flag leaf are observed at the time of harvest for their retention of greenness.

Length of panicle is measured in centimeters from the base to the tip of the panicle. Time: near maturity

Panicles are classified according to their mode of branching, angle of primary branches, and spikelets density. Time: near maturity

To observed lodging resistance. Culm strength is first rated after panicle emergence by gently pushing the tillers bank and forth a few times. The test gives some indicators of culm stiffness and resilience. Final observation at maturity is made to record standing position of plants. Time: after flowering up to maturity

The extent to which grains have shattered from the panicle. Time: at maturity

The matured panicle is grasped by hand and a slight rolling pressure is applied with the palm and fingers. The observation is based on the extend of grain removal. Time: at maturity

The exsertion of the panicle above the flag leaf sheath after anthesis. Time: near maturity

The axis of the panicle is observed by position of the panicle in the entire plot. Time: at maturity

Apiculus color is determined by eye inspection. Time: at maturity

Leaf length is measured in centimeters from the topmost leaf blade below the flag leaf on the main culm. Time: late vegetative stage

Width is measured at the widest portion of the blade on the leaf below the flag leaf on the main culm. Time: late vegetative stage

Ligule length is measured in milimeters from the base of the collar to the tip. Its absence is denoted by a blank. Time: late vegetative stage

Ligule color is determined by eye inspection. Time: late vegetative stage

Blade color is determined by eye inspection and using green color code by IRRI. Time: late vegetative stage

Color of the outer surface of the leaf sheath done by eye inspection. Time: early to late vegetative stage

Auricle color is determined by eye inspection. Time: late vegetative stage

The days are counted from the date on which sowing on the wet seedbed was made to 50% panicle heading averaged from the whole plot

Width is measured at the widest portion of the blade on the flag leaf on the main culm. Time: late vegetative stage

Leaf angle is measured near the collar as the angle of attachment between the flag leaf blade and the main panicle axis. Time: after heading

Flag leaf length is measured in centimeters on the main culm. Time: late vegetative stage

The angle of openness of the blade tip is measured against the culm on the leaf below the flag leaf. Time: prior to heading

Blade pubescence is measured by touching on the leaf surface area. Time: late vegetative stage

Pebescence of the hull. Time: at maturity

Determined when the terminal spikelets are ripened. Observed by eye inspection. Time: at maturity

Stigma color is determined from blooming spikelets (between 9 a.m. and 2 p.m.) with the aid of a hand lens. Time: at maturity

Grain length is measured in milimeter as the distance from the base of the lowermost sterile lemma to the tip (apiculus) of the fertile lemma or palea, whichever is longer. In the case of awned varieties, the grain is measured to a point comparable to the tip of the apiculus. Time: at maturity

A random sample of 100 well-developed, whole grains dried to 13% moisture content is weighed on a precision balance to give the 100-grain weight. Time: at maturity

Spikelet sterility readings are obtained from counts of well-developed spikelets in proportion to total number of spikelets on five panicles. Time: at maturity

Measurement is made on each of the sterile lemmas.

Width of grain is measured in milimeters as the distance across the fertile lemma and the palea at the widest point. Time: at maturity

The shape is measured by eye inspection and based on the diagram given in the Rice Descriptors List. Time: late vegetative stage

Collar color is determined by eye inspection. Time: late vegetative stage

Culm angle readings are based on plants grown in the entire plot. Time: after flowering

Data are taken in milimmeeters from the outer diameter of the culms measured at the midportion of the culm. Time: around flowering period

Culm length is measured in centimeters from ground level to the base of the panicle of the main culm. Time: after heading

Culm number is recorded after full heading as the total number of grain-bearing and non-bearing tillers. Time: after heading

The color of the outer surface of the internodes on the culm. Observed by eye inspection. Time: after flowering

When the terminal spikelets are approaching maturity. The color detemined by eye inspection. Time: at maturity

Accessions

List of accessions included in the dataset

MYS005MARDI Seberang Perai, Malaysia • DOI: N/A
MYS005MARDI Seberang Perai, Malaysia • DOI: N/A
MYS005MARDI Seberang Perai, Malaysia • DOI: N/A
MYS005MARDI Seberang Perai, Malaysia • DOI: N/A
MYS005MARDI Seberang Perai, Malaysia • DOI: N/A
MYS005MARDI Seberang Perai, Malaysia • DOI: N/A
MYS005MARDI Seberang Perai, Malaysia • DOI: N/A
MYS005MARDI Seberang Perai, Malaysia • DOI: N/A
MYS005MARDI Seberang Perai, Malaysia • DOI: N/A
MYS005MARDI Seberang Perai, Malaysia • DOI: N/A
MYS005MARDI Seberang Perai, Malaysia • DOI: N/A
MYS005MARDI Seberang Perai, Malaysia • DOI: N/A
MYS005MARDI Seberang Perai, Malaysia • DOI: N/A
MYS005MARDI Seberang Perai, Malaysia • DOI: N/A
MYS005MARDI Seberang Perai, Malaysia • DOI: N/A
MYS005MARDI Seberang Perai, Malaysia • DOI: N/A
MYS005MARDI Seberang Perai, Malaysia • DOI: N/A
MYS005MARDI Seberang Perai, Malaysia • DOI: N/A
MYS005MARDI Seberang Perai, Malaysia • DOI: N/A
MYS005MARDI Seberang Perai, Malaysia • DOI: N/A
MYS005MARDI Seberang Perai, Malaysia • DOI: N/A
MYS005MARDI Seberang Perai, Malaysia • DOI: N/A
MYS005MARDI Seberang Perai, Malaysia • DOI: N/A
MYS005MARDI Seberang Perai, Malaysia • DOI: N/A
MYS005MARDI Seberang Perai, Malaysia • DOI: N/A
MYS005MARDI Seberang Perai, Malaysia • DOI: N/A
MYS005MARDI Seberang Perai, Malaysia • DOI: N/A
MYS005MARDI Seberang Perai, Malaysia • DOI: N/A
MYS005MARDI Seberang Perai, Malaysia • DOI: N/A
MYS005MARDI Seberang Perai, Malaysia • DOI: N/A