Rice Trait Ontology

ID	NAME	DEFINITION	IS_A
TO:0000326	leaf color	"A leaf morphology trait (TO:0000748) which is the color of a leaf (PO:0025034)." [Gramene:pankaj_jaiswal, PO:0025034, TO:cooperl]	TO:0000748 ! leaf morphology trait
TO:0000327	shoot system yield trait	"A yield trait (TO	TO:0000371 ! yield trait
TO:0000328	sucrose content	"The amount of sucrose present in the plant or the plant part." [Gramene:pankaj_jaiswal]	TO:0006003 ! oligosaccharide contentTO:0006007 ! polysaccharide content
TO:0000329	tillering ability	"Degree of tillering is affected by variety, spacing of plants in the field, season of planting, and environmental conditions e.g. nitrogen levels." [Gramene:pankaj_jaiswal, ISBN:9712200299]	TO:0000654 ! shoot system growth and development trait
TO:0000330	outcrossing potential	"It is a measure of percent seed set on the out-pollinated primary panicle." [Gramene:pankaj_jaiswal, IRRI:SES]	TO:0000392 ! sterility or fertility trait
TO:0000331	sucrose phosphate synthase activity trait	"Catalysis of the reaction	TO:0000599 ! enzyme activity trait
TO:0000332	rice whorl maggot resistance	"Causal agent	TO:0000261 ! insect damage resistance
TO:0000333	sugar content	"Amount of sugar present in the plant or the plant part." [Gramene:pankaj_jaiswal]	TO:0000291 ! carbohydrate content
TO:0000334	hybrid evaluation	"OBSOLETE." []	None
TO:0000335	ligule shape	"A ligule morphology trait (TO:0002748) which is the actual shape of the ligule (PO:0020105)." [IRRI:SES, PO:0020105, TO:cooperl]	TO:0000492 ! leaf shapeTO:0002748 ! ligule morphology trait
TO:0000336	total amylase activity trait	"A combined activity of both the alpha and beta amylase enzymes." [EC:3.2.1.-, GO:0016160, Gramene:pankaj_jaiswal]	TO:0000703 ! amylase activity trait
TO:0000337	kneeing ability	"Represents the angle of the tiller in the submerged water fields (flash flooding)." [IRRI:SES]	TO:0000114 ! flooding related trait
TO:0000338	beta-amylase activity trait	"An amylase activity trait (TO:0000703) which is the quality of the hydrolysis of 1,4-alpha-glucosidic linkages in polysaccharides to remove successive maltose units from the non-reducing ends of the chains." [EC:3.2.1.2, GO:0016161]	TO:0000703 ! amylase activity trait
TO:0000339	stem thickness	"Thickness of the stem." [Gramene:pankaj_jaiswal]	TO:0000051 ! stem strengthTO:0000892 ! stem size
TO:0000340	total soluble sugar content	"Total amount of soluble sugar present in the plant or plant part." [Gramene:pankaj_jaiswal]	TO:0000333 ! sugar content
TO:0000341	plant genetic trait	"OBSOLETE. A plant genetic trait is a distinguishable feature or a characteristic or a quality of character or a phenotypic feature of a developing or developed plant species which is genetically linked to a physical or genetic marker" [Gramene:pankaj_jaiswal]	None
TO:0000342	panicle axis angle	"Represents the angle of panicle axis." [IRRI:SES]	TO:0000270 ! inflorescence axis angle
TO:0000343	grass weed	"A common grass weed Echinochloa glabbrescens or Echinochloa crus-galli (Barnyard grass), Typha spp. (Cattails), Leptochloa fascicularis (Bearded sprangletop) grows as a weed in the rice field. Can be distinguished from rice plant by the leaf shape, venation, stem cross-section and plant shape leaf shape." [Gramene:pankaj_jaiswal, http://www.ipm.ucdavis.edu/PMG/r682700999.html, ISBN:9712200299]	TO:0000347 ! weed damage
TO:0000344	days to flowering trait	"A flowering time trait (TO:0002616) which is the number of days required for an individual flower (PO:0009046), a whole plant (PO:0000003) or a plant population to reach flowering stage (PO:0007616) from a predetermined time point (e.g. the date of seed sowing, seedling transplant, or seedling emergence)." [Gramene:pankaj_jaiswal, TO:cooperl]	TO:0002616 ! flowering time trait
TO:0000345	seed viability	None	TO:0000931 ! seed quality traitTO:0000184 ! seed morphology trait