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%20%20%20%20Effect%20of%20Thinning%20and%20Polling%20on%20the%20Yield%20of%20Cassava%20(Manihot%20Esculenta%20Crantz)%20Tubers%20under%20Agroecological%20Conditions%20of%20Yangambi%20City,%20Democratic%20Republic%20of%20the%20Congo
Research article
  

Effect of Thinning and Polling on the Yield of Cassava (Manihot Esculenta Crantz) Tubers under Agroecological Conditions of Yangambi City, Democratic Republic of the Congo


Mondonga G, Koto-te-Nyiwa Ngbolua,⃰ Molongo M, Monde G, Engbabona J, Bongo G, Mwanza FB, Pambu LA, Falanga MC

1Ubangi Protestant University, Faculty of Agricultural Sciences, Gemena, Democratic Republic of the Congo
2University of Kinshasa, Faculty of Science, Department of Biology, P.O. Box 190, Kinshasa XI, Democratic Republic of the Congo
3University of Gbadolite, Faculty of Agricultural Sciences, P.O. Box 111, Gbadolite, Democratic Republic of the Congo
4Yangambi Institute of Agricultural Sciences, P.O. Box 1232, Kisangani, Democratic Republic of the Congo
5Sokoine University of Agriculture, Faculty of Veterinary Medicine, B.P. 3000, Morogoro, Tanzania


Corresponding author :

Dr. Koto-te-Nyiwa Ngbolua,
Tel.: (+243) 81 68 79 527,
Email:

Received: June 2, 2015,   Accepted: July 15, 2015,   Published:


Abstract:

A study on the cultivation techniques on cassava has been carried out in Yangambi. Four cultivation practices: polling, thinning, combination of polling and thinning and the control (neither thinning nor polling), have been applied on four selected varieties of cassava namely: N’sansi, Zizila, Butamu and a local one called Mbongo. The results obtained revealed that there is no significant differences between these techniques precisely on the tuber production of these varieties which are differently produced. These yields have been of 21.7 t/ha for Butamu; 28.6 t/ha for N’sansi; 20.2 t/ha for Zizila and 13.5 t/ha for Mbongo (the local variety). The overall results of this study show that polling and thinning combined techniques can be used for the improvement of the cassava productivity in Yangambi city.


Keywords: Manihot esculenta Crantz Yield, Cultural techniques, Yangambi city, Democratic Republic of the Congo.


Citation:

Koto-te-Nyiwa Ngbolua et al. (2015). Effect of Thinning and Polling on the Yield of Cassava (Manihot Esculenta Crantz) Tubers under Agroecological Conditions of Yangambi City, Democratic Republic of the Congo. J. of Advanced Botany and Zoology, V3I2. DOI: 10.15297/JABZ.V3I2.06.


Copyright:

© 2015 Koto-te-Nyiwa Ngbolua,. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


      
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      Journal of Advanced Botany and Zoology