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Correlation coefficients of morphological: Productive traits of species of Sorghum genus

Koeficijenti korelacije morfološko-produktivnih osobina vrsta roda Sorghum

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Authors
Janković, Snežana
Rakić, Sveto
Ikanović, Jela
Kuzevski, Janja
Živanović, Ljubiša
Lakić, Zeljko
Article (Published version)
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Abstract
Objective of the research were phenotypic and genetic correlation coefficients of three species of Sorghum genus - forage sorghum S. bicolor Moench. (genotype NS-Džin), Sudan grass S. sudanense L. (genotype Zora) and interspecies hybrid S. bicolor x S. sudanense (genotype Siloking). Studies were carried out on samples of plant material from the first cut. The following morphological-productive traits were studied: plant height, number of leaves per plant, mass of leaves on the stem, average stem mass and yield of green biomass. In the analysis of genetic and phenotypic coefficients, differences depending on the impact on studied morphological-productive traits are observed. The highest value of the stem height was recorded in Sudan grass (2.281 m), as well as number of leaves per plants (7.917). The greatest mass of leaves per plant was established in forage sorghum (49.05 g), and the highest average stem mass was recorded in interspecies hybrid plants (80.798 g). Variation of morpholo...gical-productive indicators per species was significant and very significant. Coefficients of simple correlations indicate the presence of very strong to almost complete, statistically very significant positive correlations, so these effects were expected. Plant height and number of leaves were not directly but indirectly statistically significant to yield of green biomass and varied from insignificant and very weak to sporadically medium strong and statistically significant.

Predmet istraživanja ove studije su fenotipski i genetički koeficijenti korelacije tri vrste roda Sorghum, i to krmni sirak S. bicolor Moench. (genotip NSDžin), sudanska trava S. sudanense L. (genotip Zora) i interspecies hibrid S. bicolor x S. sudanense (genotip Siloking). Ispitivanja su vršena na uzorcima biljnog materijala iz prvog otkosa, Proučavane su sledeće morfološko-produktivne osobine: visina biljke, broj listova po biljci, masa listova na stablu, prosečna masa stabla i prinos zelene biomase. Analizom genetičkih i fenotipskih koeficijenata uočavaju se razlike i zavisnosti u delovanju na ispitivane morfološko-produktivne osobine. Najveću vrednost visine stabla imala je sudanska trava (2,281 m), kao i broj listova po biljci (7,917). Najveća masa listova po biljci bila je u krmnog sirka (49,05 g), a najveću prosečnu masu stabla imale su biljke interspecies hibrida (80,798 g). Variranja ovih morfološko-produktivnih pokazatelja po vrstama bila su signifikantna i vrlo signifikantna.... Koeficijenti prostih korelacija ukazuju na postojanje vrlo jakih do skoro potpunih, statistički vrlo značajnih pozitivnih veza, ovakvi efekti su se mogli očekivati. Visina biljke i broj listova nisu bili direktno statistički značajni na prinos zelene biomase, ali indirektno jesu i varirali su od beznačajnih i jako slabih do sporadično srednje jakih i statistički značajnih.

Keywords:
forage sorghum / Sudan grass / interspecies hybrid / genotype / correlations
Source:
Biotechnology in Animal Husbandry, 2012, 28, 3, 585-593
Publisher:
  • Institut za stočarstvo, Beograd
Funding / projects:
  • Ecoremediation of degraded areas through agri-energy crops production (RS-31078)

DOI: 10.2298/BAH1203585J

ISSN: 1450-9156

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URI
http://aspace.agrif.bg.ac.rs/handle/123456789/2894
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