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ACCESSIONPLANT NAMETAXONOMYORIGINGENEBANKIMAGEAVAILABILITYRECEIVEDSOURCE TYPESOURCE DATECOLLECTION SITECOORDINATESELEVATIONHABITATIMPROVEMENT LEVELNARRATIVE
0PI 681593CA 4005Gossypium hirsutum L. Texas, United StatesCOTNot Available2017DEVELOPEDBreeding materialCA 4005 is an upland cotton germplasm line originally developed for cold tolerance at Texas AandM Agrilife Research in Lubbock, and subsequently evaluated for potential resistance to thrips feeding injury in replicated trials at four field locations and in three separate greenhouse tests from 2012 to 2014. CA 4005 was not directly selected for thrips tolerance at the field level, but indirectly selected during the time period each year when thrips populations, and their subsequent effects on seedling cotton, are greatest on the Texas High Plains. CA 4005 consistently displayed greater resistance to thrips feeding injury than commercial and susceptible checks at the field level. Greenhouse evaluations revealed CA 4005 to have only partial resistance that can be overcome at high enough thrips densities. Yield potential and other agronomic characteristics of CA 4005 are comparable to evaluated commercial checks. HVI fiber quality is also comparable and, in some cases, superior to that of the checks. CA 4005 could be valuable source of partial thrips resistance in adapted upland cotton germplasm.1947458PI 681593
1PI 681594CA 4006Gossypium hirsutum L. Texas, United StatesCOTNot Available2017DEVELOPEDBreeding materialCA 4006 is an upland cotton germplasm line originally developed for cold tolerance at Texas AandM Agrilife Research in Lubbock, and subsequently evaluated for potential resistance to thrips feeding injury in replicated trials at four field locations and in three separate greenhouse tests from 2012 to 2014. CA 4006 was not directly selected for thrips tolerance at the field level, but indirectly selected during the time period each year when thrips populations, and their subsequent effects on seedling cotton, are greatest on the Texas High Plains. CA 4006 consistently displayed greater resistance to thrips feeding injury than commercial and susceptiblechecks at the field level. Greenhouse evaluations revealed CA 4006 to have only partial resistance that can be overcome at high enough thrips densities. Yield potential and other agronomic characteristics of CA 4006 are comparable to evaluated commercial checks. HVI fiber quality is also comparable and, in some cases, superior to that of the checks. CA 4006 could be valuable source of partial thrips resistance in adapted upland cotton germplasm.1947460PI 681594