Rice Trait Ontology

ID	NAME	DEFINITION	IS_A
TO:0000450	grain yield per panicle	"Average weight of dehulled grains per panicle." [Gramene:pankaj_jaiswal]	TO:0000396 ! grain yield trait
TO:0000451	large vascular bundle number to spikelet number ratio	"A ratio of number of large vascular bundles present in the spikelets to the number of spikelets in a grass inflorescence." [Gramene:pankaj_jaiswal]	TO:0000456 ! spikelet numberTO:0000472 ! vascular bundle number
TO:0000452	leaf area to spikelet number ratio	"A ratio of leaf area to the number of spikelets in a grass inflorescence." [Gramene:pankaj_jaiswal]	TO:0000540 ! leaf area trait
TO:0000453	panicle to tiller ratio	"A ratio of number of tiller bearing the panicles to the total number of tillers in rice." [Gramene:pankaj_jaiswal]	TO:0000371 ! yield trait
TO:0000454	stem borer resistance	"Causal agents	TO:0000261 ! insect damage resistance
TO:0000455	seed set percent	"An infructescence morphology trait (TO:0000920) which is the percent of seeds (PO:0009010) set in an infructescence (PO:0006342)." []	TO:0000920 ! infructescence morphology trait
TO:0000456	spikelet number	"A spikelet morphology trait (TO:0000657) which is the average number of spikelets (PO:0009051) in one or more inflorescence (PO:0009049) (e.g. rice panicle) found in a plant or on all plants of a study." [Gramene:pankaj_jaiswal, PO:0009049, PO:0009051, TO:moorel]	TO:0000657 ! spikelet morphology traitTO:0000582 ! inflorescence numberTO:0000625 ! spikelet density
TO:0000457	total biomass yield	None	TO:0000371 ! yield trait
TO:0000458	drought recovery	"Scores are taken after 10 days following soaking rain or watering- Indicate the degree of stress before recovery." [IRRI:SES]	TO:0000394 ! drought related trait
TO:0000459	root epidermis cell length	"Length of the root epidermal cell length." [Gramene:pankaj_jaiswal37]	TO:0000227 ! root lengthTO:0020107 ! plant cell length
TO:0000460	light intensity sensitivity	None	TO:0000075 ! light sensitivity
TO:0000461	basic vegetative phase	None	TO:0000369 ! vegetative growth time
TO:0000462	gelatinization temperature	"Is an indication of gelatinization temperature. Observed by placing six milled-grains/kernels in 10ml 1.7% KOH in a shallow container and arrange them so that they do not touch. Let them stand for 23hrs at 30C temperature and score for spreading. Measure for Alkali digestion is inversely proportional to the gelatinization temperature, e.g. if alkali digestion is low, the gelatinization temperature is high." [Gramene:pankaj_jaiswal, IRRI:SES]	TO:0001069 ! cooking quality traitTO:0000489 ! carbohydrate composition related trait
TO:0000463	anthesis silking interval	"A difference of the average number of days between the maize tassel flowering and the first visible silk (stigma) on the maize ear." [Gramene:pankaj_jaiswal]	TO:0002616 ! flowering time trait
TO:0000464	albino plantlet differentiation frequency	None	TO:0000250 ! plant vigor trait
TO:0000465	mineral and ion content trait	"A biochemical trait (TO:0000277) that is the amount of a particular mineral or ion constituent occurring in a plant anatomical entity (PO:0025131)." [Gramene:pankaj_jaiswal]	TO:0000277 ! biochemical trait
TO:0000466	carbon content	"Amount of carbon present in the dry mass." [Gramene:pankaj_jaiswal]	TO:0000465 ! mineral and ion content trait
TO:0000467	cell membrane stability	"Stability of the cell membrane under the impact of temperature (heat) and water deficit stress." [Gramene:pankaj_jaiswal, http://www.plantstress.com/methods/CMS_method.htm]	TO:0000168 ! abiotic stress trait
TO:0000468	leaf blast disease resistance	"Causal agent	TO:0000074 ! blast disease resistance
TO:0000469	days to maturity	"A plant phenological trait (TO:0000933) which is the number of days from planting to the fruit ripening stage (PO:0025502) or seed maturation stage (PO:0007632)." [IRRI:SES, TO:cooperl]	TO:0000933 ! plant phenological trait