This indicates that, at least in the current germplasm collection, hexaploids
occur at a low frequency, if at all.
Days to Phy- Days sio- Dis- to logi- ease An- cal 1000 score CIMMYT Pedigree the- Matu- Plant grain ([sec- designation [dagger]) sis rity height weight tions]) cm g % Synthetic hexaploids
Days to Pedigree Physio- CIMMYT ([double Days to logical Plant designation dagger]) Anthesis Maturity height cm Synthetic hexaploids
have been reported as having resistance to diseases such as karnal bunt, caused by Tilletia indica Mitra (Multani et al.
can be found throughout the Great Plains (Huff et al.
insularis Ladizinsky has been shown to have even greater pairing affinity with the hexaploid
and has been suggested as the most likely tetraploid ancestor of the hexaploids
are routinely crossed and backcrossed with common wheat (2n = 6x = 42, AABBDD) to achieve acceptable agronomic types.
The tetraploids produced as much dry matter as the hexaploids
and did not show a significant difference by Tritipyrum.
tetraploids, and hexaploids
, with traditionally recognized species
This idea supports the hypothesis of individualised origin; that is, an independent origin of the hexaploids
'continuous sclerenchyma' from a diploid ancestor in the different mountain ranges.
Cytology and reproductive behavior of pearl millet-napiergrass hexaploids
x Pennisetum squamulatum trispecific hybrids.
Somatic chromosome counts determined for these 11 accessions indicated two triploid (A12256 and A12260), three pentaploids (A12348, A12352, and A12365), and six hexaploids
(A12317, A12318, A12319, A12320, A12356, and A12358) (Table 1 and Fig.