![](images/graphics/blank.gif)
Investigated pollen grains
-
In this study, three new hybrids from the genus Cirsium are described for the first time. Cirsium ×nezaketiae Yıldız, Dirmenci & Arabacı, C. ×kelkitensis Yıldız, Arabacı & Dirmenci, and C. ×erzincanicum Yıldız, Dirmenci & Arabacı are investigated in detail morphologically, palynologically, and molecularly. The hybrid individuals were detected on field trips due to their intermediate morphological characters. Their morphological properties were analyzed to compare with their parents.
21p
tudichquannguyet
29-11-2021
9
1
Download
-
Palynological characters of 20 taxa belonging to the Turkish subgenus Cyanus were studied in details using light and scanning electron microscopy. Pollen grains of the subgenus Cyanus were tricolporate or syncolporate, subprolate or prolate-spheroidal, 26.15 to 53 µm in polar size, 22.84 to 46.86 µm in equatorial size, isopolar, and radially symmetrical. The only type of pollen grain ornamentation observed was scabrate-perforate. Principal component analysis and cluster analysis were performed to investigate the relationships of the studied Cyanus taxa.
16p
tudichquannguyet
29-11-2021
12
1
Download
-
A study was conducted to investigate in vitro pollen germination of four mango varieties, viz. Kesar, Alphonso, Mallika and Dudhpendo. Pollen grains were stored in three different media (n-hexane, paraffin oil and without media) under four different storage temperature (-20⁰C, -4⁰C, 4⁰C and room temperature).
12p
chauchaungayxua10
18-03-2021
8
1
Download
-
The objective of this work was to study the reproductive biology in four nerium cultivars. Anthesis, anther dehiscence, stigma receptivity, flower and fruit morphology, pollen morphology and production, ovule production and pollen ovule ratio were studied. Anthesis in nerium cultivars started from 5.30 a.m. and reached the peak by 6.30 a.m. except in yellow cultivar (6.30 to 7.30 am). Nerium flowers are protandrous in nature and the anthers dehisced by longitudinal slit just before the anthesis. Anther dehiscence started at 5.30 a.m. and maximum anther dehisce was observed between 5.
16p
trinhthamhodang3
12-02-2020
10
1
Download
-
Pollen grains of 39 taxa of the genus Fritillaria L. in Turkey were examined by light and scanning electron microscopy. Detailed pollen morphological characteristics are given for these taxa. Our investigation shows that the sculpturing of the exine provides valuable characters for separating species.
20p
vibasque27
27-03-2019
23
1
Download
-
In this study, Sonchus erzincanicus Matthews (Asteraceae) collected from Erzincan (Turkey) has been investigated by its leaf and stem anatomical features, pollen grain characteristics and ecological features.
7p
vibasque27
29-03-2019
11
0
Download
-
Detailed cytological investigations performed in Anemone tetrasepala Royle from the Pangi Valley revealed the presence of various irregularities (spindle irregularities, chromatin transfer, chromatin stickiness, and nonsynchronous condensation of chromatin material) for the first time in the species that existed at diploid level (2n = 14).
10p
vi4mua
24-02-2019
12
2
Download
-
Atmospheric pollen grains of Kuşadası were captured using Durham samplers and investigated in 2005. The total number of pollen grains and the pollen grains/cm2 were calculated from slides that were changed weekly.
9p
vi4mua
24-02-2019
18
0
Download
-
Morphological characterization of pollen grains is very important in the identification of individual species and cultivars of fruit trees, including quince. As material for these studies, the pollen of eight quince cultivars, Leskovacka, Vranjska, Morava, Pazardzijska, Hemus, Asenica, Portugal and Triumph was used.
9p
danhdanh11
09-01-2019
33
2
Download
CHỦ ĐỀ BẠN MUỐN TÌM
![](images/graphics/blank.gif)