{"id":{"repo_id":"vt","oai_identifier":"oai:vtechworks.lib.vt.edu:10919/70495"},"canonical_url":"https://search.dev.ndltd.org/etd/vt/oai:vtechworks.lib.vt.edu:10919/70495","repository":{"repo_id":"vt","name":"Virginia Tech","base_url":"https://vtechworks.lib.vt.edu/oai/request"},"display":{"title":"Regrowth analysis of alfalfa (Medicago sativa, L.) during three seasons in 1966","abstract":"The rate of alfalfa regrowth during three seasons was associated with different parameters with the objective of finding a most suitable date of cutting in each season. The rate and total dry matter produced was higher during spring and early summer seasons than in late summer. The higher L.A.I. during spring than for the other two seasons may be attributed to production of new leaves because of weevil and frost damage. The greatest efficiency in L.A.I. occurred during early summer and the lowest in late summer; the same trend was observed in N.A.R. Interception of 95% of the light required different L.A.I. values during the three seasons, and these values were reached at different dates of regrowth and stages of maturity. Maximum growth rates were not associated with 95% light interception. Height was the best criteria for cutting date. However, the optimum heights were not related to days of regrowth. The status of carbohydrate reserves differed within each season. These reserves generally declined immediately after defoliation, indicating that they furnish energy for regrowth. The nutritive value of the forage generally declined as stage of maturity advanced.","abstract_html":"The rate of alfalfa regrowth during three seasons was associated with different parameters with the objective of finding a most suitable date of cutting in each season. The rate and total dry matter produced was higher during spring and early summer seasons than in late summer. The higher L.A.I. during spring than for the other two seasons may be attributed to production of new leaves because of weevil and frost damage. The greatest efficiency in L.A.I. occurred during early summer and the lowest in late summer; the same trend was observed in N.A.R. Interception of 95% of the light required different L.A.I. values during the three seasons, and these values were reached at different dates of regrowth and stages of maturity. Maximum growth rates were not associated with 95% light interception. Height was the best criteria for cutting date. However, the optimum heights were not related to days of regrowth. The status of carbohydrate reserves differed within each season. These reserves generally declined immediately after defoliation, indicating that they furnish energy for regrowth. The nutritive value of the forage generally declined as stage of maturity advanced.","abstract_has_math":false,"creators":["Davila Suarez, Vicente"],"institution":"Virginia Polytechnic Institute","degree_name":"Master of Science","degree_level":"masters","degree_discipline":"Agronomy","degree_department":"Agronomy","school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1967,"date_issued":"1967","date_published":"1967","updated_at":"2026-07-22T22:19:49Z","subjects":[],"languages":["en"],"rights":["In Copyright"],"rights_urls":["http://rightsstatements.org/vocab/InC/1.0/"],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/10919/70495","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.department","label":"Department","values":["Agronomy"]},{"key":"dc:creator","label":"Author","values":["Davila Suarez, Vicente"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2016-04-21T15:34:49Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2016-04-21T15:34:49Z"]},{"key":"dc:date.issued","label":"Date","values":["1967"]},{"key":"dc:publisher","label":"Institution","values":["Virginia Polytechnic Institute"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"dc:type.dcmitype","label":"Dc Type Dcmitype","values":["Text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Agronomy"]},{"key":"thesis:degree_level","label":"Degree Level","values":["masters"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science"]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["Virginia Polytechnic Institute"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["In Copyright"]},{"key":"dc:rights.uri","label":"Rights URI","values":["http://rightsstatements.org/vocab/InC/1.0/"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/10919/70495"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["The rate of alfalfa regrowth during three seasons was associated with different parameters with the objective of finding a most suitable date of cutting in each season. The rate and total dry matter produced was higher during spring and early summer seasons than in late summer. The higher L.A.I. during spring than for the other two seasons may be attributed to production of new leaves because of weevil and frost damage. The greatest efficiency in L.A.I. occurred during early summer and the lowest in late summer; the same trend was observed in N.A.R. Interception of 95% of the light required different L.A.I. values during the three seasons, and these values were reached at different dates of regrowth and stages of maturity. Maximum growth rates were not associated with 95% light interception. Height was the best criteria for cutting date. However, the optimum heights were not related to days of regrowth. The status of carbohydrate reserves differed within each season. These reserves generally declined immediately after defoliation, indicating that they furnish energy for regrowth. The nutritive value of the forage generally declined as stage of maturity advanced."]},{"key":"dc:description.degree","label":"Dc Description Degree","values":["Master of Science"]},{"key":"dc:format.mimetype","label":"Dc Format Mimetype","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Regrowth analysis of alfalfa (Medicago sativa, L.) during three seasons in 1966"]}]}],"canonical_facts":{"dc:contributor.department":["Agronomy"],"dc:creator":["Davila Suarez, Vicente"],"dc:date.accessioned":["2016-04-21T15:34:49Z"],"dc:date.available":["2016-04-21T15:34:49Z"],"dc:date.issued":["1967"],"dc:description.abstract":["The rate of alfalfa regrowth during three seasons was associated with different parameters with the objective of finding a most suitable date of cutting in each season. The rate and total dry matter produced was higher during spring and early summer seasons than in late summer. The higher L.A.I. during spring than for the other two seasons may be attributed to production of new leaves because of weevil and frost damage. The greatest efficiency in L.A.I. occurred during early summer and the lowest in late summer; the same trend was observed in N.A.R. Interception of 95% of the light required different L.A.I. values during the three seasons, and these values were reached at different dates of regrowth and stages of maturity. Maximum growth rates were not associated with 95% light interception. Height was the best criteria for cutting date. However, the optimum heights were not related to days of regrowth. The status of carbohydrate reserves differed within each season. These reserves generally declined immediately after defoliation, indicating that they furnish energy for regrowth. The nutritive value of the forage generally declined as stage of maturity advanced."],"dc:description.degree":["Master of Science"],"dc:format.mimetype":["application/pdf"],"dc:identifier.uri":["http://hdl.handle.net/10919/70495"],"dc:language.iso":["en"],"dc:publisher":["Virginia Polytechnic Institute"],"dc:rights":["In Copyright"],"dc:rights.uri":["http://rightsstatements.org/vocab/InC/1.0/"],"dc:title":["Regrowth analysis of alfalfa (Medicago sativa, L.) during three seasons in 1966"],"dc:type":["Thesis"],"dc:type.dcmitype":["Text"],"thesis:degree_discipline":["Agronomy"],"thesis:degree_level":["masters"],"thesis:degree_name":["Master of Science"],"thesis:institution_name":["Virginia Polytechnic Institute"]},"updated_at":"2026-07-22T22:19:49Z"}