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  1. Article: Registration of Six Grain Sorghum Pollinator (R) Lines

    Perumal, R. / Tesso, T. / Kofoid, K. D. / Aiken, R. M. / Prasad, P. V. V. / Bean, S. R. / Wilson, J. D. / Herald, T. J. / Little, C. R.

    Journal of plant registrations. 2019 Jan., v. 13, no. 1

    2019  

    Abstract: Six sorghum [Sorghum bicolor (L.) Moench] pollinators—KS142R (Reg. No. PL‐307, PI 687867), KS143R (Reg. No. PL‐308, PI 687868), KS144R (Reg. No. PL‐309, PI 687869), KS145R (Reg. No. PL‐310, PI 687870), KS146R (Reg. No. PL‐311, PI 687871), and KS147R (Reg. ...

    Abstract Six sorghum [Sorghum bicolor (L.) Moench] pollinators—KS142R (Reg. No. PL‐307, PI 687867), KS143R (Reg. No. PL‐308, PI 687868), KS144R (Reg. No. PL‐309, PI 687869), KS145R (Reg. No. PL‐310, PI 687870), KS146R (Reg. No. PL‐311, PI 687871), and KS147R (Reg. No. PL‐312, PI 687872)—were developed from random mating using a recurrent selection followed by pedigree methods and released by the Kansas State University Agricultural Research Center, Hays, KS, in August 2017. The released pollinator (R) lines were evaluated in hybrid combinations over several environments for agronomic and yield traits. These lines were selected for release based on their agronomic desirability and unique combination of drought and stalk rots tolerance, grain quality traits, and high yield potential in hybrid combinations of importance to sorghum breeders. All six R lines can be used as male parents to develop potential high‐yielding drought‐tolerant hybrids with seed parents having A1 cytoplasmic male sterility background.
    Keywords Sorghum bicolor ; agricultural research ; cytoplasmic male sterility ; drought ; drought tolerance ; grain quality ; grain sorghum ; hybrids ; males ; pedigree ; pollinators ; recurrent selection ; Kansas
    Language English
    Dates of publication 2019-01
    Size p. 113-117.
    Publishing place The Crop Science Society of America, Inc.
    Document type Article
    Note JOURNAL ARTICLE ; epub
    ZDB-ID 2381569-3
    ISSN 1940-3496 ; 1936-5209
    ISSN (online) 1940-3496
    ISSN 1936-5209
    DOI 10.3198/jpr2017.12.0087crp
    Database NAL-Catalogue (AGRICOLA)

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    Z 7757: Show issues

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  2. Article: Chloroplast DNA polymorphism in fertile and male-sterile cytoplasms of sorghum (Sorghum bicolor (L.) Moench).

    Chen, Z / Liang, G H / Muthukrishnan, S / Kofoid, K D

    TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik

    2013  Volume 80, Issue 6, Page(s) 727–731

    Abstract: Restriction endonuclease patterns of chloroplast DNA (cpDNA) were consistently distinguishable between fertile and male-sterile cytoplasms of sorghum [Sorghum bicolor (L.) Moench], whereas no differences in restriction patterns of cpDNA among male- ... ...

    Abstract Restriction endonuclease patterns of chloroplast DNA (cpDNA) were consistently distinguishable between fertile and male-sterile cytoplasms of sorghum [Sorghum bicolor (L.) Moench], whereas no differences in restriction patterns of cpDNA among male-sterile (A1) lines, including six isocytoplasmic strains, were revealed in this study. It is suggested that chloroplast DNA may contribute to the male sterility of A1 lines used currently in hybrid sorghum production.
    Language English
    Publishing date 2013-11-11
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2170-2
    ISSN 1432-2242 ; 0040-5752
    ISSN (online) 1432-2242
    ISSN 0040-5752
    DOI 10.1007/BF00224184
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  3. Article: Registration of greenbug resistant sorghum germplasm lines KS 116 A/B through KS 120 A/B

    Kofoid, K.D / Harvey, T.L

    Crop science. 2005 Mar-Apr, v. 45, no. 2

    2005  

    Keywords Sorghum bicolor ; germplasm releases ; lines ; pest resistance ; Schizaphis graminum ; agronomic traits ; grain yield
    Language English
    Dates of publication 2005-03
    Size p. 802-803.
    Document type Article
    ZDB-ID 410209-5
    ISSN 0011-183X
    ISSN 0011-183X
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  4. Article: Characterization of sorghum genotypes for traits related to drought tolerance

    Mutava, R.N / Prasad, P.V.V / Tuinstra, M.R / Kofoid, K.D / Yu, J

    Field crops research. 2011 July 18, v. 123, no. 1

    2011  

    Abstract: Grain sorghum (Sorghum bicolor L. Moench) is a genetically diverse cereal crop grown in many semiarid regions of the world. Improving drought tolerance in sorghum is of prime importance. An association panel of about 300 sorghum genotypes from different ... ...

    Abstract Grain sorghum (Sorghum bicolor L. Moench) is a genetically diverse cereal crop grown in many semiarid regions of the world. Improving drought tolerance in sorghum is of prime importance. An association panel of about 300 sorghum genotypes from different races, representative of sorghum globally, was assembled for genetic studies. The objectives of this research were to (i) quantify the performance of the association panel under field conditions in Kansas, (ii) characterize the association panel for phenological, physiological and yield traits that might be associated with tolerance to limited moisture (drought), and (iii) identify genotypes with higher yield potential and stability under different environments that may be used in the sorghum breeding program. Results show large diversity for physiological and yield traits such as chlorophyll content, leaf temperature, grain numbers and grain weight per panicle, harvest index and yield. Significant differences were found for plant height, grain weight and numbers per panicle, harvest index, and grain yield among and within races. The US elite lines had the highest number of grains and grain weight per panicle while the guinea and bicolor races recorded the lowest. Harvest index and yield was highest for the US elite lines and the caudatum genotypes. Overall, there was a negative correlation between plant height and grain weight, grain numbers and yield. Harvest index and grain numbers were negatively affected by moisture limitation for all the races. Among the races, the caudatum genotypes were more stable in grain yield across the different environments. Overall, there was a wide variability within the association panel for physiological and yield traits that may prove to be useful for improving drought tolerance in sorghum.
    Keywords Sorghum bicolor ; chlorophyll ; drought ; drought tolerance ; genotype ; grain crops ; grain sorghum ; grain yield ; harvest index ; inflorescences ; leaves ; races ; semiarid zones ; temperature ; Kansas
    Language English
    Dates of publication 2011-0718
    Size p. 10-18.
    Publishing place [Amsterdam]: Elsevier
    Document type Article
    ZDB-ID 435684-6
    ISSN 0378-4290
    ISSN 0378-4290
    DOI 10.1016/j.fcr.2011.04.006
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  5. Article: Variability and relationships among 12-hour IVDMD, starch, oil, protein, and physical characteristics of 16 sorghum conversion lines

    Pedersen, J.F / Kofoid, K.D

    Euphytica : Netherlands journal of plant breeding. 2003. v. 130 (2)

    2003  

    Abstract: A factor frequently identified as a key to understanding sorghum [Sorghum bicolor (L.) Moench feed value to ruminant animals is rate of starch digestion. Recent research in corn (Zea mays L.) has established a strong ability to predict rumen starch ... ...

    Abstract A factor frequently identified as a key to understanding sorghum [Sorghum bicolor (L.) Moench feed value to ruminant animals is rate of starch digestion. Recent research in corn (Zea mays L.) has established a strong ability to predict rumen starch degradation from grain physical and chemical parameters. It was therefore important to determine whether similar relationships could be established in sorghum. The objectives of this study were to determine: 1) range of variation for12-hour in vitro dry matter disappearance (IVDMD), chemical, and physical grain quality parameters among 16sorghum conversion lines; and 2) to establish the strength of the relationships of these characters. Entries were grown at Ithaca, Nebraska in 1991 and 1992 in a randomized complete block with four replications. Line effects were significant for 12-hour IVMVD, crude protein, oil, starch, individual seed weight, and hardness. The only traits significantly correlated with 12-hour IVDMD were crude protein and hardness, with r<or=-0.32 for testa and non-testa-containing lines. Stepwise regression similarly revealed poor predictive ability for any of the traits on12-hour IVDMD. Unlike corn, prediction of digestibility from simply measured physical parameters was not possible in this set of16 sorghum lines. However, the lack of strong relationships provides opportunity to select lines with unique combinations of traits for individual targeted needs or markets.<br />
    Keywords Sorghum bicolor ; lines ; line differences ; in vitro digestibility ; prediction ; nutritive value ; feed grains ; crude protein ; protein content ; seed oils ; starch ; chemical composition ; diameter
    Language English
    Size p. 261-266.
    Document type Article
    ZDB-ID 216568-5
    ISSN 0014-2336
    ISSN 0014-2336
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  6. Article: Selection for Seed Set in a Wheat Population Treated with a Chemical Hybridizing Agent

    Kofoid, K. D

    Crop science. 1991 Mar., v. 31, no. 2

    1991  

    Abstract: Production of hybrid seed is an important component of hybrid wheat (L.) utilization. A recurrent selection program was initiated using gridded mass selection to select for increased seed set on individual plants that had been treated with a chemical ... ...

    Abstract Production of hybrid seed is an important component of hybrid wheat (L.) utilization. A recurrent selection program was initiated using gridded mass selection to select for increased seed set on individual plants that had been treated with a chemical hybridizing agent (CHA). Four cycles of selection with recombination were completed using the spring wheat random-mating population NDPI. To determine the effectiveness of this selection procedure, 32 random half-sib selfed families from both the CO and the C4 cycles of selection, 32 random inbreds from the original NDP1 population, and 32 inbred lines from several wheat breeding programs were compared for both fertile seed yield (no CHA) and hybrid seed yield (0.6 kg ha CHA) in replicated tests at two locations in 1986. Differences were found among entries for all traits when averaged across treatments. A significant rate ✕ entry interaction was found only among the inbred lines for grain yield, test weight, grain protein concentration, kernel weight, and kernels per spike. The families from the mass-selected population had a 20% greater seed set than the families from the original population and a 73% greater seed set than the inbred lines when treated with the CHA. Inbreds developed from the population had a 45% greater seed set than the conventional inbreds when treated. The increased hybrid seed production was associated with longer spikes and an increase in the number of spikelets per spike. When not treated with the CHA, the mass-selected group also had grain yield greater than the original population. The results indicate that outcrossing ability can be improved in wheat either directly through selection or indirectly through the use of random-mating populations.
    Keywords Triticum aestivum ; hybridization ; hybrids ; seed set ; crop yield ; recurrent selection ; inbred lines ; cross pollination ; outcrossing ; line differences ; artificial selection ; genetic recombination ; selection response
    Language English
    Dates of publication 1991-03
    Size p. 277-281.
    Publishing place Crop Science Society of America
    Document type Article
    Note epub
    ZDB-ID 410209-5
    ISSN 0011-183X
    ISSN 0011-183X
    DOI 10.2135/cropsci1991.0011183X003100020008x
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  7. Article: Registration of seven biotype I greenbug resistant restorer germplasm lines of sorghum

    Kofoid, K.D / Harvey, T.L

    Crop science. Sept/Oct 2000. v. 40 (5)

    2000  

    Keywords Sorghum bicolor ; pest resistance ; cytoplasmic male sterility ; fecundity ; germplasm ; crop yield ; agronomic traits ; Kansas
    Language English
    Dates of publication 2000-09
    Size p. 1510-1511.
    Document type Article
    ZDB-ID 410209-5
    ISSN 0011-183X
    ISSN 0011-183X
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  8. Article: Registration of biotype E greenbug resistant grain sorghum germplasm

    Kofoid, K.D / Harvey, T.L

    Crop science. Sept/Oct 2000. v. 40 (5)

    2000  

    Keywords Sorghum bicolor ; genetic resistance ; germplasm ; crop yield ; genotype ; Kansas
    Language English
    Dates of publication 2000-09
    Size p. 1509-1510.
    Document type Article
    ZDB-ID 410209-5
    ISSN 0011-183X
    ISSN 0011-183X
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  9. Article: Sorghum germplasm tolerant to greenbug (Homoptera: Aphididae) feeding damage as measured by reduced chlorophyll loss

    Girma, M / Kofoid, K.D / Reese, J.C

    Journal of the Kansas Entomological Society. Apr 1998. v. 71 (2)

    1998  

    Keywords plant nutrition ; Sorghum bicolor ; Schizaphis graminum ; germplasm ; cultivars ; chlorophyll ; biotypes ; chemical constituents of plants
    Language English
    Dates of publication 1998-04
    Size p. 108-115.
    Document type Article
    ZDB-ID 2210268-1
    ISSN 0022-8567
    ISSN 0022-8567
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  10. Article: Genetic analysis of feed quality and seed weight of sorghum inbred lines and hybrids using analytical methods and NIRS

    Hicks, C / Tuinstra, M.R / Pedersen, J.F / Dowell, F.E / Kofoid, K.D

    Euphytica : Netherlands journal of plant breeding. 2002. v. 127 (1)

    2002  

    Abstract: Eight lines of grain sorghum and their F1hybrids were evaluated for contents of crude protein (CP), fat (FAT), and starch(STA); protein digestibility (PD); and in vitro dry matter disappearance (IVDMD).The effect of seed weight (SW) on these traits and ... ...

    Abstract Eight lines of grain sorghum and their F1hybrids were evaluated for contents of crude protein (CP), fat (FAT), and starch(STA); protein digestibility (PD); and in vitro dry matter disappearance (IVDMD).The effect of seed weight (SW) on these traits and the potential use of near infrared reflectance spectroscopy (NIRS) to predict them also were investigated. The male lines included three normal-seeded lines (TX2737, TX435, and P954063) and two large-seeded lines (PL-1 and Eastin1). The female lines included common U.S. seed parent lines (Wheatland, Redlan, andSA3042). The lines and their hybrids were grown under dry land conditions at Kansas State University experiment fields in Ashland and Belleville, Kansas, in 1999.The experiments were conducted using a randomized complete block design with four replications at each location. The effect of genotype was significant for all measured traits. The male parent lines were highly variable and expressed high levels of genetic variation in combining ability for CP, PD, STA, and SW. The female parents were genetically more uniform; however, significant general combining ability effects were noted for PD and SW. Significant negative correlations were noted between CP and STA and between SW and STA. Significant positive correlations were found between CP and SW and between FAT and IVDMD. Crude protein content was predicted accurately by NIRS. Fat content and IVDMD could not be predicted by NIRS. The NIRS equations based on ground samples were more accurate than those based on whole-seed samples.
    Keywords Sorghum bicolor ; inbred lines ; feeds ; nutritive value ; genetic techniques and protocols ; infrared spectroscopy ; dietary protein ; crude protein ; protein content ; starch ; digestible protein ; in vitro digestibility ; prediction ; hybrids ; Kansas
    Language English
    Size p. 31-40.
    Document type Article
    ZDB-ID 216568-5
    ISSN 0014-2336
    ISSN 0014-2336
    DOI 10.1023/A:1019943805514
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