BREEDING BANANAS FOR NEMATODE RESISTANCE
India is the largest producer of banana. It is liable to attack by different pathogens, especially nematodes. Taking into account the yield loss of 40%, caused by nematodes, a breeding programme was taken up at Horticultural College & Research Institute, TNAU, Coimbatore to produce hybrids resistant to banana nematodes, Radoplrolrrs similis, Pmlyienclrus cuﬂeue and Helicolylertcls nurllicirrcltrs. It involved screening and identification of sources of resistance and hybridization with susceptible cultivars which otherwise have better horticultural traits. Totally, 3506 crosses were made using resistant and susceptible cultivars, synthetic hybrids of all ploidy levels and also with connncrcial diploids. Among the successful crosses obtained seven hybrids H 203 (H 59 x Arnbalakadali), H 205 (H 65 x Pisang Lilin), H 207 (H 89 x Anaikomban), H 213 (H 20l x Ambalakadali), H 230 (H 20] x H H0), H 235 (H 66 x Anaikomban) and H 237 (H 6 x Ambalakadali) were found to be tolerant to nematodes. The level of tolerance was assessed from soil and root population of nematodes at different stages of crop growth and the percentage of lesion on root and corm of the newly developed hybrids.
- There are currently no refbacks.
PMHE, Pest Management in Horticultural Ecosystem. 2013 © Association for Advancement of Pest Management in Horticultural Ecosystems, all right reserved.
Concept Conceived By: Chief Editor and Online Team,AAPMHE
Executed By: Thippeswamy S, Asst. Chief Technical Officer
Proudly powered by OJS