Proportion of the medium large round seed fraction of maize inbred lines in dependence on the cytoplasm type
Authors
Jovanović V., SnežanaTodorović, Goran
Kresović, Branka
Tolimir, Miodrag
Crevar, Miloš
Štrbanović, Ratibor
Stanisavljević, Rade
Article (Published version)
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The aim of the present study was to determine the proportion of the medium large round seed
fraction of the maize inbred lines depending on the cytoplasm type. The studies encompassed 12
inbred lines with different types of cytoplasm (cms-C, cms-S and fertile) that were tested in two
locations (Selection Field and Školsko dobro) during 2015 and 2016. The three-replicate trials were
set up according to randomised complete-block design within each type of cytoplasm. The analysis
of variance indicated that the cytoplasm type was a decisive factor in the expression of the seed
fraction - medium large round (MLR).. The highest, i.e. lowest value of this trait, on average, was
recorded in the inbred line L1 (47.9%), i.e. L7 (1.4%), respectively. The average percent of the MLR
seed fraction significantly varied (P≤5%) in respect of the observed cytoplasm type. The highest
and the lowest values of this trait were established in sterile cytoplasm cms-C (13.8%), and fertile
c...ytoplasm (12.8%), respectively. The medium values of the MLR seed fraction very significantly
(P≤1%) varied in dependence on the year and location of investigation. The greater proportion of
the MLR seed fraction was determined in maize inbred in 2015 (19.4%) than in 2016 (7.5%), as
well as in the location of Selection Field (14.4%) than in Školsko dobro (12.5%). The analysis of
obtained results point out to a significant effect of the cytoplasm type on the medium large round
seed fraction
Keywords:
cytoplasmic male sterility / inbred lines / seed fractionsSource:
54. Croatian and 14. International symposium on agriculture, Croatia - Vodice, 17–22. February 2019. - Book of abstracts, 2019, 76-76Publisher:
- Zagreb : University of Zagreb, Faculty of Agriculture