Morphobiological Features and Selection Value of Sterile Sorghum Lines

Kapustin, S.I.; Volodin, A.B.; Kapustin, A.S.

doi:10.31563/1684-7628-2018-48-4-29-33

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“…Leaf formation. Leaf width of the sweet sorghum hybrids F 1 tends to reduce while leaf length and leaf formation (foliage) tends to increse [12,13]. Leaf formation (foliage) is closely connected with green mass productivity [14,15].…”

Section: Resultsmentioning

confidence: 99%

Inheritance of the main quantitative traits in sweet sorghum hybrids F₁

et al. 2020

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Sweet sorghum hybrids F1 in productivity can surpass the parental forms on 50-60%. Thus the breeding process is aimed to develop first generation hybrids with a strong potential of productivity and quality of green mass and silage. The purpose of the work is to study heritability and heterosis of the quantitative traits of sweet sorghum hybrids F1 obtained on a sterile basis. The study was conducted in 2013-2015 on the lines with cytoplasmic male sterility (‘A-63’, ‘Knyazhna’, ‘APV-1115), the varieties (‘Listvenit’, ‘Severnoe 44’, ‘Zernogradskoe 454’, ‘Stavropolskoe 36’, ‘Galiya’ and ‘Larets’) and the hybrids. The inheritance of green mass productivity and absolutely dry matter, the length of a vegetation period, plant height and leaf formation (foliage), protein content in dry matter of the hybrids occurred according to the type of dominance and overdominance. It has been determined that while choosing the parental forms for hybridization it’s essential to select the forms with differences in the vegetation period of 4-6 days to avoid the dominance of late maturity. The height pollinator increase results in the hybrid height increase and large heterosis. It’s necessary to select the parental forms with maximum foliage to improve leaf formation in the hybrids.

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Section: Resultsmentioning

confidence: 99%