Rice Trait Ontology

ID	NAME	DEFINITION	IS_A
TO:0001006	adventitious root number	"Average sum of number of adventitious roots in a plant derived per experiment." [Gramene:pankaj_jaiswal]	TO:0000084 ! root number
TO:0001007	coleoptile length	"A coleoptile morphology trait (TO:0000753) which is the length of a coleoptile (PO:0020033)." [Gramene:pankaj_jaiswal, PO:0020033, TO:cooperl]	TO:0000753 ! coleoptile morphology traitWTO:0000044 ! morphology
TO:0001008	days to flag leaf emergence	"In grass plants the number of days required for the full emergence of the flag leaf in a field or study. It can be counted from date of seed sowing or the transplant (in case of rice)." [Gramene:pankaj_jaiswal]	TO:0000655 ! leaf growth and development trait
TO:0001009	deep root number	"A count of number of roots present below a given depth from the soil surface." [Gramene:pankaj_jaiswal]	TO:0000084 ! root number
TO:0001010	senesced leaf number	"Number of leaves in a plant that have undergone leaf senescence stage or are considered dead." [Gramene:pankaj_jaiswal]	TO:0000241 ! leaf number
TO:0001011	deep root weight ratio	"A ration of the deep root dry weight to total root dry weight per plant." [Gramene:pankaj_jaiswal]	TO:0000279 ! root weight
TO:0001012	lateral root length	"A root length (TO:0000227) that is the length of one or more lateral roots (PO:0020121)." [Gramene:pankaj_jaiswal, TO:austin_meier, TO:seymour_megan]	TO:0000227 ! root length
TO:0001013	lateral root number	"Average sum of number of lateral roots in a plant derived per experiment." [Gramene:pankaj_jaiswal]	TO:0000084 ! root number
TO:0001014	leaf dry weight	"A leaf weight trait (TO:0000505) which is the dry weight of a leaf (PO:0025034)." [Gramene:pankaj_jaiswal, PO:0025034, TO:moorel]	TO:0000505 ! leaf weight
TO:0001015	photosynthetic rate	"The total amount of carbon fixed by the plant per unit time and is measured by determining the changes in CO2 concentration over a plant leaf in a glass enclosure." [Gramene:pankaj_jaiswal]	TO:0000283 ! biological process trait
TO:0001016	relative chlorophyll content	"A chlorophyll content trait (TO:0000495) which is the relative chlorophyll content of a plant structure (PO:0009011) after a treatment, as compared to that determined under normal growth conditions." [Gramene:pankaj_jaiswal, TO:cooperl]	TO:0000495 ! chlorophyll content
TO:0001017	water use efficiency	"As determined by the ratio of photosynthetic rate to transpiration rate." [Gramene:pankaj_jaiswal]	TO:0000237 ! water stress trait
TO:0001018	transpiration rate	"The rate of transpiration." [Gramene:pankaj_jaiswal]	TO:0000283 ! biological process trait
TO:0001019	root to total biomass ratio	"A ratio of root dry weight to total plant dry weight." [Gramene:pankaj_jaiswal]	TO:0001041 ! root yield
TO:0001020	exudate sap volume	"Volume of the sap exudate collected from the cut parts of a plant." [Gramene:pankaj_jaiswal]	TO:0000327 ! shoot system yield trait
TO:0001021	days to inflorescence exsertion	"Number of days required for the emergence of inflorescence to become visible on the plant." [Gramene:pankaj_jaiswal]	TO:0002616 ! flowering time trait
TO:0001022	days to tassel emergence	"Number of days required for the tassel to emerge from the flag leaf in a maize plant or a group of plants in a study." [Gramene:pankaj_jaiswal]	TO:0001021 ! days to inflorescence exsertion
TO:0001023	days to ear shoot emergence	"Number of days required for the ear shoot to emerge from the given leaf sheath in a maize plant or a group of plants in a study." [Gramene:pankaj_jaiswal]	TO:0001021 ! days to inflorescence exsertion
TO:0001024	phosphorus content	"A mineral and ion content trait (TO:0000465) which is the phosphorus cation (CHEBI:33467) composition in a plant structure (PO:0009011)." [Gramene:pankaj_jaiswal, TO:cooperl]	TO:0000465 ! mineral and ion content trait
TO:0001025	leaf phosphorus content	"Amount of phosphorus in the leaf." [Gramene:pankaj_jaiswal]	TO:0020114 ! shoot system phosphorus contentTO:0000493 ! leaf composition trait