Artificial hybrids in Cryptocoryne (Araceae) 6. Hybridization between various species

 

Niels Jacobsen, Jan D. Bastmeijer, Takashige Idei, Suwidji Wongso & Marian Orgaard

 

ABSTRACT

We performed interspecific crossings between Cryptocoryne species from various geographical regions: India and Sri Lanka, Vietnam and Borneo, within the Philippines and within New Guinea. The success rate (11%) for these crossings is comparable to those found in similar crossings between

species from Malay Peninsula, Borneo, and Sumatera and other regions. The success rate drops to 4% when the combinations include species from geographical distant areas and with different chromosome groups.

 

KEYWORDS

Araceae, chromosome numbers, Cryptocoryne, natural and artificial hybridization, New Guinea, Philippines, SE Asia, Vietnam,