@article{moll_jackson_mikkelsen_1994, title={RECURRENT SELECTION FOR MAIZE GRAIN-YIELD - DRY-MATTER AND NITROGEN ACCUMULATION AND PARTITIONING CHANGES}, volume={34}, ISSN={["0011-183X"]}, DOI={10.2135/cropsci1994.0011183X003400040009x}, abstractNote={Recurrent full‐sib family and reciprocal recurrent selection have resulted in significant increases in grain weight of crosses between the varieties of maize (Zea mays L.) Jarvis Golden Prolific and Indian Chief. The objectives of this study were to (i) compare increases due to 14 cycles of recurrent full‐sib family selection, and reciprocal recurrent selection for yield in maize and (ii) determine whether increased grain weights were accompanied by parallel increases in total dry matter and total N accumulation. Unless total dry matter acquisition increases in parallel with grain weight during selection, sustained root and shoot functions would be restricted by excessive diversion of carbohydrates to grain. After 14 selection cycles on sandy soils of the North Carolina coastal plain, grain weight, dry matter accumulation, and N accumulation in the population hybrid increased 23, 12, and 4%, respectively, with full‐sib family selection and 27, 21, and I0%, respectively, with reciprocal recurrent selection. Greater proportions of the dry matter and N accumulated were partitioned to grain after full‐sib family selection than after reciprocal recurrent selection. Therefore, photosynthate production after full‐sib family selection was not sufficient to fully satisfy both the demand by grain and the requirements for root and shoot processes. Reciprocal recurrent selection resulted in a greater increase in photosynthate production, so that the hybrid population was able to meet the demand for carbohydrate by higher grain yield and still sustain N acquisition by roots. The conclusions were also supported by heterosis for grain weight, total dry matter, and total N accumulation, which was greater after reciprocal recurrent selection than after full‐sib family selection. Selection to increase grain weight will result in efficient N acquisition only when the greater grain weight is supported by an adequate increase in photosynthate production.}, number={4}, journal={CROP SCIENCE}, author={MOLL, RH and JACKSON, WA and MIKKELSEN, RL}, year={1994}, pages={874–881} }
 @article{moll_1991, title={16 CYCLES OF RECURRENT FULL-SIB FAMILY SELECTION FOR GRAIN WEIGHT IN 2 MAIZE POPULATIONS}, volume={31}, ISSN={["1435-0653"]}, DOI={10.2135/cropsci1991.0011183X003100040024x}, abstractNote={Full‐sib family selection for greater grain weight per plant is expected to increase the frequency of favorable alleles for this trait in random‐mating populations of maize (Zea mays L.). This study was undertaken to assess responses to selection and changes in genetic variances accumulated during 16 cycles in (i) the open‐pollinated population Jarvis Golden Prolific, and (ii) the population descended from the F2 generation of the single cross NC7 ✕ CI21. Selection responses were measured in replicated experiments that included Cycle 0 and several advanced selection cycles, and by estimates of accumulated gains through all 16 cycles of the selection experiments per se. In addition to increases in mean grain weight, changes in responsiveness to environmental effects were evaluated by regression analysis. The selection experiments were designed to provide estimates of genetic variances from progeny test data of each selection cycle. Gains due to selection were linear for 16 cycles at a rate of 2.4% cycle−1 for the Jarvis population and 4.5% cycle−1 for the NC7 ✕ CI21 population. Advanced selection cycles were more responsive to environments than the original populations. Additive genetic variance showed no trend associated with selection in the Jarvis population, but declined with selection in the NC7 ✕ CI21 population. Accumulated gains were greater in the NC7 ✕ CI21 population, even though the genetic variance in that population was smaller initially and has decreased in later selection cycles.}, number={4}, journal={CROP SCIENCE}, author={MOLL, RH}, year={1991}, pages={959–964} }
 @article{moll_kamprath_jackson_1991, title={REGISTRATION OF NC201 PARENTAL LINE OF MAIZE}, volume={31}, ISSN={["0011-183X"]}, DOI={10.2135/cropsci1991.0011183X003100030078x}, abstractNote={Crop ScienceVolume 31, Issue 3 cropsci1991.0011183X003100030078x p. 857-857 Registration of Parental Lines Registration of NC201 Parental Line of Maize R. H. Moll, Corresponding Author R. H. Moll n/a@.dne Dep. of GeneticsCorresponding author.Search for more papers by this authorE. J. Kamprath, E. J. Kamprath Dep. of GeneticsSearch for more papers by this authorW. A. Jackson, W. A. Jackson Dep. of Soil Science, North Carolina State Univ., Raleigh, NC, 27695-7614Search for more papers by this author R. H. Moll, Corresponding Author R. H. Moll n/a@.dne Dep. of GeneticsCorresponding author.Search for more papers by this authorE. J. Kamprath, E. J. Kamprath Dep. of GeneticsSearch for more papers by this authorW. A. Jackson, W. A. Jackson Dep. of Soil Science, North Carolina State Univ., Raleigh, NC, 27695-7614Search for more papers by this author First published: 01 May 1991 https://doi.org/10.2135/cropsci1991.0011183X003100030078xAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat No abstract is available for this article. Volume31, Issue3May-June 1991Pages 857-857 RelatedInformation}, number={3}, journal={CROP SCIENCE}, author={MOLL, RH and KAMPRATH, EJ and JACKSON, WA}, year={1991}, pages={857–857} }