Line × Tester Analysis Involving Diverse Cytoplasmic Systems in Sorghum

Kishan, A. G.; Borikar, S. T.

doi:10.1111/j.1439-0523.1989.tb00329.x

Cited by 6 publications

(10 citation statements)

References 5 publications

(1 reference statement)

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“…These results are slightly different from other cytoplasm studies in sorghum wherein differences in grain yield were detected between different cytoplasms [23,25]. In these studies, the A3 cytoplasm was the poorest performing cytoplasm [24,32].…”

Section: Resultscontrasting

confidence: 55%

“…In grain sorghum hybrids the effect of cytoplasm on performance of grain sorghum hybrids has varied, depending on study. Maves and Atkins [22] reported a reduction in grain yield in A2 hybrids compared to A1 hybrids while Kishan and Borikar [23] reported that A2 was superior to A1 for grain size and yield. Secrist and Atkins [24] found no significant differences in grain yield between A1 and A2 hybrid, but they reported a 6% reduction in grain yield in A3 hybrids compared to A1 hybrids.…”

Section: Introductionmentioning

confidence: 99%

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Cytoplasm Has No Effect on the Yield and Quality of Biomass Sorghum Hybrids

Hoffmann¹,

Rooney²

2013

JSBS

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The development of the biomass sorghum hybrid seed industry is contingent on the use of cytoplasmic male sterility. Within sorghum, there are several different cytoplasmic male sterility systems and it is important to determine early in development if cytoplasm will affect agronomic performance or composition characters. Thus, if there is a difference, then the best system can be deployed. The purpose of this study was to determine if cytoplasm per se influences agronomic performance of biomass sorghum using a set of iso-cytoplasmic hybrids. Three hybrid genotypes were produced in three different cytoplasms (A1, A2, and A3) for a total of nine hybrids. These hybrids were evaluated for plant height, biomass yield, and biomass composition in three Texas environments (Weslaco, College Station, and Halfway) in 2010. Across environments, significant differences existed among hybrids for both agronomic and compositional traits, but cytoplasm per se had no effect on any measured trait. Since cytoplasm did not effect on hybrid performance, any of the tested cytoplasms (A1, A2, and A3) can be deployed in hybrid biomass sorghums.

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Section: Resultscontrasting

confidence: 55%

Section: Introductionmentioning

confidence: 99%

Cytoplasm Has No Effect on the Yield and Quality of Biomass Sorghum Hybrids

Hoffmann¹,

Rooney²

2013

JSBS

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“…Mahdy et al (1987) realized an increase in grain yield with significant heterosis by crossing among the superior families. Kishan and Borikar (1989) evaluated isosterile (A 1 , A 2 , and A 4 ) females and a set of five fertility restorers. Chen (1988) produced five homo-cytoplasmic and five heterocytoplasmic lines using 6-grain sorghum varieties with four types of cytoplasm.…”

Section: Extent Of Heterosis For Agronomic Physiological and Biochementioning

confidence: 99%

Breeding Methods for Winter Sorghum Improvement

Reddy

Patil²

2015

Genetic Enhancement of Rabi Sorghum

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“…However, studies evaluating the agronomic potential of different CMS systems are inconsistent in their results. Kishan and Borikar (1988) reported that A2 is superior to A1 for grain size and yield while Maves and Atkins (1988) observed a yield decrease in A2 hybrids compared with A1 hybrids. Secrist and Atkins (1989) who found no significant differences ( P > 0.05) in grain yield between A1 and A2 hybrid, but they reported a 6% reduction in grain yield in A3 hybrids compared to A1 hybrids.…”

mentioning

confidence: 99%

Effect of Cytoplasm on the Agronomic Performance of Grain Sorghum Hybrids

Moran

Rooney

2003

Crop Science

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but the research to classify and characterize these systems has not been completed (Schertz et al., 1997). Hybrid sorghum [Sorghum bicolor (L.) Moench] seed productionFrom these systems, sorghum breeders have released relies exclusively on cytoplasmic male sterility (CMS) systems and improved lines for use in sorghum breeding programs. almost all hybrid sorghum seed is produced using the A1 CMS system. Miller (1986) released A2Tx632, followed soon after by However, the reliance on a single CMS system increases the vulnerability of the crop to diseases and stresses that may attack that particular A2Tx636 and A2Tx637 (Miller et al., 1992a). These A/B CMS system. Alternative CMS systems have been described and even lines are agronomically adapted male steriles that posused on a limited basis for hybrid seed production, but a direct comparsess the A2 CMS system. Miller (1984b) released ison of the agronomic effects of different cytoplasms has not been RTx432 and this line is a fertility restorer for the A2 possible because male-sterile lines with a common genetic background sterility system. In addition, several researchers have (and different cytoplasm) were not available. The recent development released male sterile lines using the A3 CMS system for of isocytoplasmic A-lines allows more direct comparison of cytouse in breeding programs (Pederson, 1997; Pederson et plasmic effect on agronomic performance. The purpose of this study al., 1997; Schertz et al., 1997), but the utilization of A3 was to determine by means of a set of isocytoplasmic hybrids if cyto-CMS has been limited because of the paucity of elite plasm per se influences agronomic performance. Twelve hybrid genomale restorers for this system. types were created in three different cytoplasms (A1, A2, and A3 for Concurrent with the development of this germplasm, a total of 36 hybrids), and they were evaluated for plant height, daysit was necessary to determine the effect of cytoplasm to anthesis, and grain yield at Weslaco and College Station, TX, in 1998 and 1999. As expected, significant differences existed among

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Line × Tester Analysis Involving Diverse Cytoplasmic Systems in Sorghum

Cited by 6 publications

References 5 publications

Cytoplasm Has No Effect on the Yield and Quality of Biomass Sorghum Hybrids

Cytoplasm Has No Effect on the Yield and Quality of Biomass Sorghum Hybrids

Breeding Methods for Winter Sorghum Improvement

Effect of Cytoplasm on the Agronomic Performance of Grain Sorghum Hybrids

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