Combined effects of Stylosanthes guianensis fallow and tillage management on upland rice yield, weeds and soils in southern Benin

Saito, Kazuki; Azoma, K.; Oikeh, Sylvester O.

doi:10.1016/j.still.2010.03.001

Cited by 27 publications

(24 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…5 in Koné et al (2009); Table 3 in Oikeh et al (2009); Table 2 in Saito and Futakuchi (2009); Table 3 in Kamara et al (2010); Fig. 1 in Koné et al (2010); Saito et al, 2010c; Table 5 in Saito et al (2010a); Sokei et al (2010); Y. Sokei., unpublished data, 2010.…”

Section: Performance Of Upland Nerica Cultivars and Their Parentsmentioning

confidence: 97%

“…Recently, the AfricaRice and partners extensively compared growth and yield performance of upland NERICA cultivars, especially NERICA 1, 2, and 4, with that of their O. sativa (WAB56‐104) and O. glaberrima (CG 14) parents (Ekeleme et al, 2009; Koné et al, 2009, 2010; Oikeh et al, 2009; Saito and Futakuchi, 2009; Kamara et al, 2010; Saito et al, 2010a, b, c; Sokei et al, 2010; Y. Sokei, unpublished data, 2010). These studies assessed cultivar differences in responsiveness to N and P fertilizer applications, weed competitiveness, and yield performance under different management practices (e.g., plant density, fallow system).…”

Section: Performance Of Upland Nerica Cultivars and Their Parentsmentioning

confidence: 99%

See 1 more Smart Citation

Enhancing Rice Productivity in West Africa through Genetic Improvement

2012

Self Cite

View full text Add to dashboard Cite

Rice yields have stagnated in West Africa at 1 to 2 Mg ha"^ because of unfavorable rice environments and poor management practices. Interspecific rice cultivars, the New Rice for Africa (NERICA), were developed by crossing Asian rice {Oryza sativa L.) and African rice (O. glaberrima Steud.) to improve upland and lowland rice productivity in resource-poor farmers' fields. This paper provides an overview of recent studies, performed by the Africa Rice Center and its partners, on evaluation of growth and yield performance of upland and lowland NERICA cultivars and modern Asian rice cultivars including the improved upland indica cultivars often termed aerobic rice. Upland NERICA cultivars were found to lack the expected combination of superior yield potential with weed suppressive ability (WSA) and adaptation to low soil fertility, instead sharing similarity in these characteristics with their O. sativa parent WAB56-104 but remaining inferior to their O. glaberrima parent CG 14 in terms of tillering ability and WSA. Some aerobic rice cultivars were identified for high yielding ability, strong WSA, and superior adaptation to low-fertility uplands and waterlimited lowlands. Some lowland NERICA cultivars outyielded improved lowland O. sativa checks and aerobic rice cultivars in favorable lowlands, whereas they did not perform well in water-limited lowlands. The implications of these findings for future challenges for genetic improvement in West Africa are discussed.

show abstract

Section: Performance Of Upland Nerica Cultivars and Their Parentsmentioning

confidence: 97%

Section: Performance Of Upland Nerica Cultivars and Their Parentsmentioning

confidence: 99%

Enhancing Rice Productivity in West Africa through Genetic Improvement

2012

Self Cite

View full text Add to dashboard Cite

show abstract

“…In the past few years, several authors have recommended that the weed management should integrate the different control methods in order to decrease weed population in the soil seedbank [45][46][47][48].…”

Section: Weed Seedbank Management In Rice Fieldsmentioning

confidence: 99%

Weed Seedbank in Rice Fields

Mesquita¹

2017

Advances in International Rice Research

View full text Add to dashboard Cite

The weed seedbank in the soil is the major source of weeds in rice fields. Therefore, information on ecological aspects of weeds occurring in rice, including their potential seed production, is crucial for weed management. The size of the weed seedbank in rice fields is highly variable depending on the climate, relief position, soil moisture content, depth of sampling, history of the areas and management practices used by farmers. As a survival strategy, colonization and persistence in the communities, most common weeds in rice fields produce huge number of seeds and vegetative propagules with physical and physiological dormancy mechanisms, insuring seed viability in the soil for long periods. A large proportion of weed seedbank remains generally on or close to the soil surface after seed rain. Sampling protocols involve the use soil cores at variable soil depths. Determination of the size of the weed seedbank can be made by seed direct extraction and germination methods. The latter is more precise with respect to enumeration of viable seeds in the soil. Weed management in rice fields should focus on methods suitable to decrease the weed population in the soil seedbank.

show abstract

“…Rice is typically grown under intensive tillage in slash-and-burn systems, and farmers have relied on extended fallow periods to restore soil fertility. However, rapid population growth and increased demand for land have led to shortened fallow periods, which in turn have resulted in declining soil organic carbon and rice yield (Saito et al, 2010).…”

Section: Introductionmentioning

confidence: 99%