COLEOPTILE LENGTH, GIBBERELLIN SENSITIVITY AND CONCENTRATIONS IN 5 NON-ALLELIC DWARF MUTANTS OF PEARL-MILLET - PENNISETUM-GLAUCUM (L) R BR

K U  DEVI; M K  RAO; S J  CROKER; P  HEDDEN; S A  RAO

COLEOPTILE LENGTH, GIBBERELLIN SENSITIVITY AND CONCENTRATIONS IN 5 NON-ALLELIC DWARF MUTANTS OF PEARL-MILLET - PENNISETUM-GLAUCUM (L) R BR

K U DEVI, M K RAO, S J CROKER, P HEDDEN, S A RAO

Research output: Contribution to journal › Article (Academic Journal) › peer-review

Abstract

The concentrations of endogenous gibberellins (GAs) were determined by combined gas chromatography-mass spectrometry in shoots of five non-allelic dwarfs of pearl millet Pennisetum glaucum (L.) R. Br. One mutant (d3), with an extreme dwarf phenotype, was found to be deficient in all GAs measured; the others (d1, d2, d4 and the quantitatively inherited dwarf) had similar levels of GAs to the tall genotype. Only the GA-deficient dwarf recovered the tall phenotype in response to applying GA(3) up to the adult stage, while the others showed slight to moderate responses at the seedling stage, depending on the season, and no response at later stages. The dl, d3 and d4 dwarfs had short coleoptiles. A wide range of coleoptile lengths with a normal distribution pattern was observed in the tall, d2 and the quantitatively inherited dwarf, suggesting that there is polygenic control of this trait.

Original language	English
Pages (from-to)	215-221
Number of pages	7
Journal	Plant Growth Regulation
Volume	15
Issue number	3
Publication status	Published - Nov 1994

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@article{16d1997f6c274f348b38a08517120234,

title = "COLEOPTILE LENGTH, GIBBERELLIN SENSITIVITY AND CONCENTRATIONS IN 5 NON-ALLELIC DWARF MUTANTS OF PEARL-MILLET - PENNISETUM-GLAUCUM (L) R BR",

abstract = "The concentrations of endogenous gibberellins (GAs) were determined by combined gas chromatography-mass spectrometry in shoots of five non-allelic dwarfs of pearl millet Pennisetum glaucum (L.) R. Br. One mutant (d3), with an extreme dwarf phenotype, was found to be deficient in all GAs measured; the others (d1, d2, d4 and the quantitatively inherited dwarf) had similar levels of GAs to the tall genotype. Only the GA-deficient dwarf recovered the tall phenotype in response to applying GA(3) up to the adult stage, while the others showed slight to moderate responses at the seedling stage, depending on the season, and no response at later stages. The dl, d3 and d4 dwarfs had short coleoptiles. A wide range of coleoptile lengths with a normal distribution pattern was observed in the tall, d2 and the quantitatively inherited dwarf, suggesting that there is polygenic control of this trait.",

author = "DEVI, \{K U\} and RAO, \{M K\} and CROKER, \{S J\} and P HEDDEN and RAO, \{S A\}",

year = "1994",

month = nov,

language = "English",

volume = "15",

pages = "215--221",

journal = "Plant Growth Regulation",

issn = "0167-6903",

publisher = "Springer Science and Business Media B.V.",

number = "3",

}

TY - JOUR

T1 - COLEOPTILE LENGTH, GIBBERELLIN SENSITIVITY AND CONCENTRATIONS IN 5 NON-ALLELIC DWARF MUTANTS OF PEARL-MILLET - PENNISETUM-GLAUCUM (L) R BR

AU - DEVI, K U

AU - RAO, M K

AU - CROKER, S J

AU - HEDDEN, P

AU - RAO, S A

PY - 1994/11

Y1 - 1994/11

N2 - The concentrations of endogenous gibberellins (GAs) were determined by combined gas chromatography-mass spectrometry in shoots of five non-allelic dwarfs of pearl millet Pennisetum glaucum (L.) R. Br. One mutant (d3), with an extreme dwarf phenotype, was found to be deficient in all GAs measured; the others (d1, d2, d4 and the quantitatively inherited dwarf) had similar levels of GAs to the tall genotype. Only the GA-deficient dwarf recovered the tall phenotype in response to applying GA(3) up to the adult stage, while the others showed slight to moderate responses at the seedling stage, depending on the season, and no response at later stages. The dl, d3 and d4 dwarfs had short coleoptiles. A wide range of coleoptile lengths with a normal distribution pattern was observed in the tall, d2 and the quantitatively inherited dwarf, suggesting that there is polygenic control of this trait.

AB - The concentrations of endogenous gibberellins (GAs) were determined by combined gas chromatography-mass spectrometry in shoots of five non-allelic dwarfs of pearl millet Pennisetum glaucum (L.) R. Br. One mutant (d3), with an extreme dwarf phenotype, was found to be deficient in all GAs measured; the others (d1, d2, d4 and the quantitatively inherited dwarf) had similar levels of GAs to the tall genotype. Only the GA-deficient dwarf recovered the tall phenotype in response to applying GA(3) up to the adult stage, while the others showed slight to moderate responses at the seedling stage, depending on the season, and no response at later stages. The dl, d3 and d4 dwarfs had short coleoptiles. A wide range of coleoptile lengths with a normal distribution pattern was observed in the tall, d2 and the quantitatively inherited dwarf, suggesting that there is polygenic control of this trait.

M3 - Article (Academic Journal)

SN - 0167-6903

VL - 15

SP - 215

EP - 221

JO - Plant Growth Regulation

JF - Plant Growth Regulation

IS - 3

ER -

COLEOPTILE LENGTH, GIBBERELLIN SENSITIVITY AND CONCENTRATIONS IN 5 NON-ALLELIC DWARF MUTANTS OF PEARL-MILLET - PENNISETUM-GLAUCUM (L) R BR

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