- Tytuł:
-
Zmienność ziaren pyłku u różnych typów odmian lnu zwyczajnego (Linum usitatissimum L.)
Pollen variability of selected cultivars of common flax (Linum usitatissimum L.) - Autorzy:
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Kluza-Wieloch, M.
Maciejewska-Rutkowska, I.
Sitek, M. - Powiązania:
- https://bibliotekanauki.pl/articles/833258.pdf
- Data publikacji:
- 2014
- Wydawca:
- Instytut Hodowli i Aklimatyzacji Roślin
- Opis:
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Celem pracy było zbadanie zmienności pyłku u czterech typów odmian lnu zwyczajnego. Zmierzono długość osi biegunowej i równikowej ziaren pyłku oraz określono ich kształt. Największe ziarna miała odmiana oleista, a najmniejsze – odmiany włókniste. Wartości współczynników zmienności cech były niskie. Analiza wariancji wykazała, że odmiany różniły się istotnie pod względem badanych cech. Cechy korelowały ze sobą istotnie. Najbardziej podobne były odmiany włókniste oraz jedna z odmian oleistych i pośrednia. Odrębną grupę stanowiły dwie odmiany oleiste i ozdobna. Ziarna pyłku były symetryczne, wielkości średniej, wydłużono-kuliste, z trzema bruzdami w płasz-czyźnie równikowej, o częściowo wykształconym daszku. Nie stwierdzono istotnych różnic w mikro-morfologii ziaren pyłku analizowanych 11 odmian.
The aim of this work was to investigate the variability of pollen morphology of four types of cultivars of common flax: oily, fibrous, intermediate and ornamental. In total, 11 cultivars were investigated. The biometry was performed for 30 pollen grains of each cultivar. Polar (P) and equatorial (E) axes were measured and on the basis of P/E ratio pollen shape was determined. Multivariate statistical analyses were carried out. The details of pollen morphology were studied with light and scanning electron microscopes. The largest pollen grains were found in oily cultivar. The smallest grains, with a high P/E ratio, were observed in fibrous types. Generally, the values of variation coefficients of analyzed traits were relatively low, whereas the lowest values were observed for oily cultivars and the largest ones – for fibrous and intermediate cultivars. Correlations based on cultivar averages were significantly different from zero for the length of the equatorial axis (E) and P/E ratio. In discriminant analysis, correlation between the measured characteristics and canonical variables showed that the first canonical variable was mostly of the correlated to the length of axis E and the second canonical variable to the relationship between both examined axes. The first canonical variable described reached up to 71.91% of the total variation, and the second variable – 20.43%. In total, the first two canonical variables explained 92.34% of the variation. Cluster analysis showed that the fibrous, oily and intermediate cultivars were similar. To each other to the largest extent. One factor analysis of variance the ANOVA (F-values) showed that the investigated traits differentiated all flax cultivars to a high degree. The length of the equatorial axis varied to the largest extent. All investigated pollen characters were significantly correlated with each other. The principal component analysis for 11 flax cultivars proved that PC1 explained 71.91% of the observed variability, whereas PC2 – 20.43%. Three major groups of grains were determined. Pollen grains were of large size, prolate-spheroidal in shape, with circular amb, trizonocolpate, semitectate, with LM gemmate sculpture visible, with SEM fossulate type of ornamentation. No significant differences were noted in pollen micromorphology among investigated flax cultivars. - Źródło:
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Rośliny Oleiste - Oilseed Crops; 2014, 35
1233-8273 - Pojawia się w:
- Rośliny Oleiste - Oilseed Crops
- Dostawca treści:
- Biblioteka Nauki
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