Water Response of Upland Rice Varieties Adopted in Sub-Saharan Africa: A Water Application Experiment

Matsumoto, Sayuri; Tsuboi, Tatsushi; Asea, Godfrey; Maruyama, Atsushi; Kikuchi, Masao; Takagaki, Michiko

doi:10.4172/jrr.1000121

Cited by 11 publications

(14 citation statements)

References 25 publications

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“…These trends corroborated the spatial analyses of temperature and rainfall across as reported in Figures 5 and 6 which further justified the diverse influences of temperature and rainfall on rice yields from each of the regions in Nigeria. Matsumoto et al (2014)) reported a strong correlation between water and upland rice yield during their studies in a research institute in Namulonge, Uganda although under a controlled environment. Table 3 Table 3.…”

Section: Rainfall In Ikejamentioning

confidence: 99%

Trends and spatial analysis of temperature and rainfall patterns on rice yields in Nigeria

Akinbile

Ogunmola

Abolude

et al. 2020

Atmospheric Science Letters

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Trends and spatial analysis of temperature and rainfall on rice yield in Nigeria was carried out. Forty year of past trends (1970–2010) was conducted with climate data obtained from the International Institute of Tropical Agriculture, Ibadan, Nigeria while upland rice yield data were obtained from the Food and Agriculture Organization. Six cities, one in each of the six agro‐ecological zones which were Calabar, Enugu, Ikeja, Ilorin, Kaduna, and Maiduguri were selected. Geographic information systems mapping for spatial analysis of temperature and rainfall over Nigeria was carried out. Mann–Kendall, Sens' tests, Pettitt's, and Buishand's tests and multiple linear regressions were used as statistical tools for analysis. Increasing rainfall trends in Enugu, Calabar, and Ikeja but decreasing trends were observed in Ilorin Kaduna and Maiduguri while temperature showed increasing trends in all the cities in the last four decades. Statistically significant positive trends of rice yield, rainfall, and temperature were observed in Ikeja and Maiduguri in the last four decades. Mann–Kendall tests showed that rice yield and temperature had generally statistically significant positive trends in Calabar Ilorin Kaduna, and Enugu while rainfall and yield were significant in Calabar Enugu but not significant in Ilorin and Maiduguri adaptation strategies to genetically modify rice varieties and effective water use strategies in areas of rainfall deficit are recommended to ensure food security.

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Section: Rainfall In Ikejamentioning

confidence: 99%

Trends and spatial analysis of temperature and rainfall patterns on rice yields in Nigeria

Akinbile

Ogunmola

Abolude

et al. 2020

Atmospheric Science Letters

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“…There are currently 18 varieties suited for upland growth conditions (NERICA 1 to NERICA 18) (Wainaina et al, 2015). The use of these improved rice varieties is expected to achieve remarkable yield improvements (Kijima et al, 2006) and therefore catalyze a rice green revolution in sub-Saharan Africa (Matsumoto et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Drought-induced root plasticity of two upland NERICA varieties under conditions with contrasting soil depth characteristics

Menge

Kameoka

Kano‐Nakata

et al. 2016

Plant Production Science

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To identify differences in root plasticity patterns of two upland New Rice for Africa (NERICA) varieties, NERICA 1 and 4, in response to drought under conditions with contrasting soil profile characteristics, soil moisture gradients were imposed using a sloping bed system with depths ranging 30-65 cm and a line-source sprinkler system with a uniformly shallow soil layer of 20 cm depth. Varietal differences in shoot and root growths were identified only under moderate drought conditions, 11-18% v/v soil moisture content. Further, under moderate drought soil conditions where roots could penetrate into the deep soil layer, deep root development was greater in NERICA 4 than in NERICA 1, which contributed to maintaining dry matter production. However, under soil conditions with underground impediment to deep root development, higher shoot dry weight was noted for NERICA 1 than for NERICA 4 at 11-18% v/v soil moisture content, which was attributed to increased lateral root development in the shallow soil layer in NERICA 1. Enhanced lateral root development in the 0-20-cm soil layer was identified in NERICA 1 even under soil conditions without an impediment to deep root development; however, this did not contribute to maintaining dry matter production in upland rice. Thus, we show different root developmental traits associated with drought avoidance in the two NERICA varieties, and that desirable root traits for upland rice cultivation vary depending on the target soil environment, such as the distribution of soil moisture and root penetration resistance.

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“…The differences in plant height may be attributed to genetic characteristics for the cultivars. Matsumoto et al [21], reported taller NERICA 4 than NERICA 1 at harvest. The expressed high vegetative growth rate for NERICAs, leads to early maturity, which is a useful trait to escape drought, compete with weeds and gives the cultivar possible diversification as intercrops or in crop rotation.…”

Section: Growth Parameters and Yield Attributes During 2018mentioning

confidence: 95%

“…The results also relate to differences in plant traits since NERICA 6 matures late (100 DAE) and had only 35 percent panicles filled at harvest (75 DAE). Water stress at the grain filling stage was reported as most critical to yield components and yield by [21]. Matsumoto et al [24], recorded higher yields of NERICA 1 and NERICA 4 (5,501kg ) under lower rainfall.…”

Section: Yield Attributes and Rice Grain Yield During 2018mentioning

confidence: 99%

Productivity and Economic Performance of NERICA Varieties under Two Harvest Modes and Rainfall Intensities in Uganda

Kaiira¹,

Owere²,

Kagoda³

et al. 2020

IJPSS

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The productivity of upland rice is highly determined by the available soil moisture and nutrients. Droughts highly influence yields especially in the second 30 days growth period. A field experiment was conducted at the Uganda National Agricultural Research Institute, Ikulwe station during 2018B and 2019B seasons to determine the productivity and economic returns of four rice varieties under two harvest modes and rainfall intensities. The treatments included NERICA 1, 4 & 6 and NAMCHE 2 given 80 kg N and 30 kg P ha-1. Treatments were replicated three times under a randomised complete block design. Data was collected on plant height, leaf number, leaf length, leaf width and number of tillers during vegetative stages in all treatments. The panicles m-2, sink size, panicle filling percentage and grain yields were determined at harvest. All the yield attributes and grain yield reduced during the droughty 2018B relative to the rainy 2019B. On the contrary, the number of tillers reduced in 2019. Correlation coefficient (r) for spikelets per m-2 were significant (>8.0) and positive (0.86) to grain yield during 2018 but were lower (0.13) in 2019. The r values were also positive, but not significant, for panicles m-2 (0.76) and for percent filled panicles (0.23) with respect to grain yield during 2018 and 2019 respectively. NERICA 4 & 6 produced higher grain yield under both moisture stress and high rainfall conditions. The results indicate that NERICA 4 and 6 varieties could be adopted and harvested at 75 days after rice emergence (DAE) for NERICA 4 and at 75 DAE and 90 DAE for NERICA 6 under low (630 mm) rainfall or harvested once at 90 DAE given high (1,500 mm) rainfall to get higher yields and Returns on Investment.

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Water Response of Upland Rice Varieties Adopted in Sub-Saharan Africa: A Water Application Experiment

Cited by 11 publications

References 25 publications

Trends and spatial analysis of temperature and rainfall patterns on rice yields in Nigeria

Trends and spatial analysis of temperature and rainfall patterns on rice yields in Nigeria

Drought-induced root plasticity of two upland NERICA varieties under conditions with contrasting soil depth characteristics

Productivity and Economic Performance of NERICA Varieties under Two Harvest Modes and Rainfall Intensities in Uganda

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