Sokoine University of Agriculture

Effectiveness of reduced rates of n on productivity and economic returns of sorghum in Striga Infested Semi-Arid Areas of Tanzania

Show simple item record

dc.contributor.author Malima, M.
dc.date.accessioned 2018-04-26T10:35:11Z
dc.date.available 2018-04-26T10:35:11Z
dc.date.issued 2017
dc.identifier.uri https://www.suaire.sua.ac.tz/handle/123456789/2121
dc.description A DISSERTATION SUBMITTED IN PARTIAL FULFILMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTERS OF CROP SCIENCE OF SOKOINE UNIVERSITY OF AGRICULTURE. MOROGORO, TANZANIA. en_US
dc.description.abstract Performances of three sorghum (Sorghum bicolor L. Moench) genotypes (Wahi, Hakika and Pato) and inorganic soil amendments were studied under naturally Striga asiatica [L.] Kuntze infestation for one cropping season (2015/16) in two locations, using a split plot design laid out in a randomized complete block design with four replications. A susceptible sorghum (Pato cultivar) was used as a bioassay to evaluate the effectiveness of reduced rates of N under Striga infestation. At Hombolo, 40 Kg N/ha had significantly (P< 0.05) lower emerged Striga shoots count/m2 than all other rates of N, except at 11 WAP. Yields with 30 Kg N/ha (0.64t/ha) was significantly (P< 0.05) lower than yields from all other rates of nitrogen (1.08 - 1.52t/ha). At Ngamu, fertilization played no significantly (P< 0.05) role in Striga emergence and attachment. Yields with 10 Kg N/ha (4.89t/ha) was significantly (P< 0.05) lower than yields from all other rates of nitrogen (5.2 – 6.0t/ha). Across locations, variety Hakika had significantly (P< 0.05) fewer emerged Striga shoots count/m2 compared with varieties Wahi and Pato. At Hombolo, Yields on Hakika variety (0.96t/ha) was significantly (P< 0.05) lower than the yield in all other varieties (1.21 - 1.28t/ha). At Ngamu, variety Pato gave more yields (7.21t/ha than other varieties (2.81 – 5.95t/ha). This study showed that the most effective rates of nitrogen; 40 and 60 Kg N/ha (Hombolo) and 50 Kg N/ha (Ngamu) should be promoted in semi-arid areas of Tanzania where Striga poses a serious threat. Results also showed that varieties Hakika and Wahi proved their resistance/ tolerance to Stiga asiatica compared to variety Pato. en_US
dc.language.iso en en_US
dc.publisher Sokoine University of Agriculture en_US
dc.subject Economic returns en_US
dc.subject Striga Infested en_US
dc.subject Semi-Arid Areas en_US
dc.subject sorghum (Sorghum bicolor L. Moench) en_US
dc.subject Genotypes (Wahi, Hakika and Pato) en_US
dc.subject Inorganic soil en_US
dc.title Effectiveness of reduced rates of n on productivity and economic returns of sorghum in Striga Infested Semi-Arid Areas of Tanzania en_US
dc.type Thesis en_US


Files in this item

This item appears in the following Collection(s)

Show simple item record

Search SUA IR


Browse

My Account

Statistics