distant hybridization
2.Compatibility of Distant Hybridization between Different Sterile Lines of Rapeseed and Vegetable Varieties of Cruciferae
3.Compatibility of distant hybridization was studied by crossing 5 different rapeseed sterile lines with different vegetable varieties of Cruciferae. This is aimed at selecting rapeseed sterile lines and vegetable varieties with high hybridization compability.
4.Based our previous studies, this current investigation is to breed novel tobacco germplam with medical value by distant hybridization between tobacco (Nicotiana tabacum L.) and medicinal plants such as Coimum bailicm L , Montha haplacaly brig and Tolinum paniolatume (jaog) coorin .
5.However,only did a few pollen germinate in inter-specific hybridization between Cerasus fruticosa and C. avian and many pollen tubes are crosswise on stigma and couldn"t penetrated into style.Although a few pollen tubes entered,they couldn"t continue to grow due to accumulation of callosity in pollen tubes.In view of above-mentioned results,the irregular growth of pollen was the main reason to cause the incompatibility of distant hybridization between Cerasus fruticosa and C.avium.
6.The astronomical palaeoecology is the product of distant hybridization between the astronomy and the palaeoecology. Applying the theory,method and observa- tional data of the astronomy,it undertakes the study on palaeoecology,essen- tially approaching the mutual relationships between the astronomical environme- ntal factors and ancient organisms and especially paying attention to exploration on palaeoecological effects of astronomical factors,for examples,(1)the relationships between the rhythmicity of growth of fossil organisms and the rotation of the earth (palaeontological clocks);
