scholarly journals Yield and yield component performances of local pigmented upland rice cultivars from East Nusa Tenggara, Indonesia in three locations

2019 ◽  
Vol 3 (2) ◽  
Author(s):  
Antonius Ndiwa ◽  
Yosep S. Mau
Keyword(s):  
Drought Tolerance ◽  
Grain Yield ◽  
Upland Rice ◽  
Blast Resistance ◽  
Yield Component ◽  
Agronomic Performance ◽  
Rice Cultivars ◽  
Yield Performance ◽  
Rice Genotype

Abstract. Ndiwa ASS, Mau YS. 2019. Yield and yield component performances of local pigmented upland rice cultivars from East Nusa Tenggara, Indonesia in three locations. Trop Drylands 3: 49-55. Several pigmented upland rice cultivars from East Nusa Tenggara Province have been selected based on their agronomic performance, blast resistance, and drought tolerance traits. This study aimed to further elucidate the selected upland rice cultivars for their yield performance and stability in a multi-location trial in three locations. The results showed the significant effect of rice genotype, location, and interactions between rice genotype and location (GxE) on most observed variables, both in each location and across the three locations. Five genotypes produced average grain yield of ≥ 4.0 t/ha over three locations, i.e., NGR-22, PMK-01, ADN-05, Inpago 7 and Aek Sibundong. These five genotypes were found to produce high and stable grain yield under the three growing environments.

scholarly journals Agronomic performance of upland rice cultivars in the southern region of the state of Tocantins

2016 ◽  
Vol 37 (4) ◽  
pp. 1699
Author(s):  
Leila Paula Tonello ◽  
Taynar Coelho de Oliveira Tavares ◽  
Ricardo De Oliveira Rocha ◽  
Gil Rodrigues dos Santos ◽  
Sérgio Alves de Sousa ◽  
...  
Keyword(s):  
Grain Yield ◽  
Rice Yield ◽  
Upland Rice ◽  
Regional Growth ◽  
The State ◽  
Southern Region ◽  
Flowering Plant ◽  
Agronomic Performance ◽  
Rice Cultivars ◽  
Cerrado Vegetation

Behavioural assessment of cultivars adapted to climate and soil variations is essential for recommending genetic materials to producers, achieving higher profitability, and, mainly, targeting regional growth. The aim of this study was to evaluate the agronomic performance of upland rice cultivars in different cropping periods and Cerrado vegetation soil in the southern region of the state of Tocantins. The experiments were conducted in a field at the Chaparral Farm and at the Experimental Station of the Federal University of Tocantins in the agricultural years of 2008/2009, 2009/2010, 2010/2011, 2011/2012, and 2012/2013 with cultivars BRS-Bonança, BRS-Primavera, and BRSMG-Conai. A randomized block experimental design was used with four replications in a factorial scheme of 3 × 5, comprising three genotypes and five years. The evaluated characteristics were as follows: number of days to flowering, plant height, weight of hundred grains, and grain yield. The highest upland rice yield was observed in the cropping period of 2012/13, which also had the highest volume and better distribution of rainfall; flowering time was lesser and greater for BRSMG-Conai and BRS-Bonança cultivars, respectively. The BRS-Primavera cultivar showed the highest grain yield in different years in Cerrado soil in the southern region of the state of Tocantins.

scholarly journals Response of rice cultivars to nitrogen in upland conditions

Revista CERES ◽  
2013 ◽  
Vol 60 (1) ◽  
pp. 86-95 ◽  
Author(s):  
Fábio Luiz Checchio Mingotte ◽  
Renata Kimie Hanashiro ◽  
Domingos Fornasieri Filho
Keyword(s):  
Grain Yield ◽  
Production Systems ◽  
Upland Rice ◽  
Oryza Sativa L ◽  
Sprinkler Irrigation ◽  
World Population ◽  
Agronomic Performance ◽  
Rice Cultivars ◽  
Nitrogen Levels ◽  
Upland Conditions

Against the background of a growing world population, rice (Oryza sativa L.) consumption is expected to grow faster than its production. Therefore, an appropriate question would be: how to increase productivity in the short-term? In this respect, it becomes important the implementation of modern agricultural production systems, such as upland rice with supplemental sprinkler irrigation. Additional information is needed to maximize the available resources, with special attention given to research on the use of nitrogen. This study aimed to evaluate the agronomic performance of commercial rice cultivars with different plant characteristics in upland conditions with supplemental sprinkler irrigation, when subjected to nitrogen in topdress application at the R1 stage (panicle differentiation). The experiment was arranged in a randomized block with split plot design, with 65 treatments, consisting of the combination of 13 cultivars in the plots, and five nitrogen levels in the subplots (0, 40, 80, 120 and 160 kg ha-1), with four replications. Genetic variability was detected among rice cultivars and the agronomic performance in response to the applied nitrogen. The topdressing application of nitrogen increases, in general, the production components and grain yield in rice. Cultivars BRS Primavera, Caiapó and IAC 202 stood out for grain yield, followed by Baldo, Carnaroli, BRS Curinga and IAC 500 with lower yields.

scholarly journals Improvement of Upland Rice Variety by Pyramiding Drought Tolerance QTL with Two Major Blast Resistance Genes for Sustainable Rice Production

Rice Science ◽  
2021 ◽  
Vol 28 (5) ◽  
pp. 493-500
Author(s):  
Vishalakshi Balija ◽  
Umakanth Bangale ◽  
Senguttuvel Ponnuvel ◽  
Kalyani Makarand Barbadikar ◽  
Srinivas Prasad Madamshetty ◽  
...  
Keyword(s):  
Drought Tolerance ◽  
Resistance Genes ◽  
Upland Rice ◽  
Blast Resistance ◽  
Rice Variety ◽  
Rice Production ◽  
Blast Resistance Genes

scholarly journals Yield performance of upland rice cultivars at different rates and times of nitrogen application

2012 ◽  
Vol 36 (2) ◽  
pp. 475-483 ◽  
Author(s):  
José Hildernando Bezerra Barreto ◽  
Ismail Soares ◽  
José Almeida Pereira ◽  
Antonio Marcos Esmeraldo Bezerra ◽  
José Aridiano Lima de Deus
Keyword(s):  
Upland Rice ◽  
Oryza Sativa L ◽  
Block Design ◽  
N Fertilization ◽  
Rice Cultivars ◽  
Nitrogen Application ◽  
N Application ◽  
Yield Performance ◽  
Randomized Block Design ◽  
N Rates

Nitrogen is the most important nutrient for rice (Oryza sativa L) yields. This study aimed to evaluate the response of upland rice cultivars to N rate and application times in a randomized block design, in subdivided plots with four replications. The studied factors were five rice cultivars (BRS MG Curinga, BRS Monarca, BRS Pepita, BRS Primavera, and BRS Sertaneja), three application times (100 % at planting, 50 % at planting - 50 % at tillering and 100 % at tillering) and four N rates (0, 50, 100, and 150 kg ha-1). All cultivars responded to increased rates and different times of N application, especially BRS Primavera and BRS Sertaneja, which were the most productive when 50 % N rates were applied at sowing and 50 % at tillering. The response of cultivar BRS Monarca to N fertilization was best when 100 % of the fertilizer was applied at tillering.

High-yielding NERICA mutant rice for upland areas and hope for Bangladeshi farmers.

2021 ◽  
pp. 53-64
Author(s):  
Mirza Mofazzal Islam ◽  
Shamsun Nahar Begum ◽  
Rigyan Gupta
Keyword(s):  
Drought Tolerance ◽  
Grain Yield ◽  
Crop Production ◽  
Upland Rice ◽  
Vital Role ◽  
High Yield ◽  
Rice Varieties ◽  
Commercial Cultivation ◽  
Drought Tolerant ◽  
Different Doses

Abstract Drought is an important stress phenomenon in Bangladesh that greatly hampers crop production. So, it is imperative to develop drought-tolerant rice varieties. Low-yielding, non-uniform flowering and late-maturing Africa rice - New Rice for Africa (NERICA), viz. NERICA-1, NERICA-4 and NERICA-10 varieties - were irradiated with different doses of gamma-rays (250, 300 and 350 Gy) in 2010. M1 plants were grown and M2 plants were selected based on earliness and higher grain yield. The desired mutants along with other mutants were grown as the M3 generation during 2011. A total of 37 mutants from NERICA-1, NERICA-4 and NERICA-10 were selected on the basis of plant height, short duration, drought tolerance and high yield in the M4 generation. In the M5 generation, six mutants were selected for drought tolerance, earliness, grain quality and higher yield. With respect to days to maturity and grain yield (t/ha), the mutant N1/250/P-2-6-1 of NERICA-1 matured earlier (108 days) and had higher grain yield (5.1 t/ha) than the parent. The mutant N4/350/P-4(5) of NERICA-4 also showed a higher grain yield (6.2 t/ha) than its parent and other mutants. On the other hand, NERICA-10 mutant N10/350/P-5-4 matured earlier and had a higher yield (4.5 t/ha) than its parent. Finally, based on agronomic performance and drought tolerance, the two mutants N4/350/P-4(5) and N10/350/P-5-4 were selected and were evaluated in drought-prone and upland areas during 2016 and 2017. These two mutants performed well with higher grain yield than the released upland rice varieties. They will be released soon for commercial cultivation and are anticipated to play a vital role in food security in Bangladesh.

Availability of existing early-season rice cultivars as resources for selecting high-yielding short-duration cultivars of machine-transplanted late-season rice

2019 ◽  
Vol 56 (2) ◽  
pp. 218-226
Author(s):  
Jiana Chen ◽  
Min Huang ◽  
Fangbo Cao ◽  
Xiaohong Yin ◽  
Yingbin Zou
Keyword(s):  
Grain Yield ◽  
Short Duration ◽  
Good Yield ◽  
Rice Production ◽  
Hunan Province ◽  
Rice Cultivars ◽  
Growth Duration ◽  
Yield Performance ◽  
Early Season ◽  
Late Season

AbstractHigh-yielding short-duration cultivars are required due to the development of mechanized large-scale double-season rice (i.e. early- and late-season rice) production in China. The objective of this study was to identify whether existing early-season rice cultivars can be used as resources to select high-yielding, short-duration (less than 115 days) cultivars of machine-transplanted late-season rice. Field experiments were conducted in Yongan, Hunan Province, China in the early and late rice-growing seasons in 2015 and 2016. Eight early-season rice cultivars (Liangyou 6, Lingliangyou 211, Lingliangyou 268, Xiangzaoxian 32, Xiangzaoxian 42, Zhongjiazao 17, Zhongzao 39, and Zhuliangyou 819) with growth durations of less than 115 days were used in 2015, and four cultivars (Lingliangyou 268, Zhongjiazao 17, Zhongzao 39, and Zhuliangyou 819) with good yield performance in the late season in 2015 were grown in 2016. All cultivars had a growth duration of less than 110 days when grown in the late season in both years. Zhongjiazao 17 produced the maximum grain yield of 9.61 Mg ha−1 with a daily grain yield of 108 kg ha−1 d−1 in the late season in 2015. Averaged across both years, Lingliangyou 268 had the highest grain yield of 8.57 Mg ha−1 with a daily grain yield of 95 kg ha−1 d−1 in the late season. The good yield performance of the early-season rice cultivars grown in the late season was mainly attributable to higher apparent radiation use efficiency. Growth duration and grain yield of early-season rice cultivars grown in the late season were not significantly related to those grown in the early season. Our study suggests that it is feasible to select high-yielding short-duration cultivars from existing early-season rice cultivars for machine-transplanted late-season rice production. Special tests by growing alternative early-season rice cultivars in the late season should be done to determine their growth duration and grain yield for such selection.

scholarly journals Grain Yield and Resource Use Efficiencies of Upland and Lowland Rice Cultivars under Aerobic Cultivation

Agronomy ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 591 ◽  
Author(s):  
Liu ◽  
Zhan ◽  
Hussain ◽  
Nie
Keyword(s):  
Grain Yield ◽  
Resource Use ◽  
Upland Rice ◽  
Water Productivity ◽  
Lowland Rice ◽  
Growth Potential ◽  
Yield Potential ◽  
Rice Cultivars ◽  
Panicle Number ◽  
Aerobic Cultivation

Aerobic rice has the potential to replace transplanted flooded rice, as rice cultivation is seriously threatened by environmental and social factors. Although the recently released upland rice cultivars have higher drought tolerance, low yield potential of these cultivars makes them less feasible for high-yielding rice planting regions under aerobic cultivation. In this study, typical lowland rice cultivars (Huanghuazhan and Yangliangyou6) were evaluated for grain yield and resource use efficiencies under aerobic cultivation as compared with upland rice cultivars (Lvhan1 and Hanyou3). Averaged across different years, lowland rice cultivars recorded 26.9%, 14.6%, and 26.6% higher grain yield, water productivity, and nitrogen use efficiency for grain production (NUEg), respectively, as compared with upland cultivars. The higher grain yield of lowland rice cultivars under aerobic cultivation was mainly attributed to the higher aboveground biomass and the spikelet number per panicle, along with a higher harvest index and panicle number per unit area with respect to upland rice cultivars. During the entire growing season in aerobic cultivation, rainfall accounted for 60% to 85% of the total water use, which indicates that lowland rice cultivars could make better use of the rainfall because of a longer growth duration and a higher growth potential. In summary, this study suggests that with appropriate irrigation, lowland rice cultivars could grow well and furnish higher yield than the current upland rice cultivars under aerobic cultivation.

scholarly journals Evaluation of Yields of Selected Upland Rice (Oryza sativa L) Varieties in a Humid Environment

2020 ◽  
pp. 77-84
Author(s):  
A. I. Nwonuala ◽  
L. D. Gbaraneh
Keyword(s):  
Grain Yield ◽  
Agronomic Traits ◽  
Upland Rice ◽  
Oryza Sativa L ◽  
Block Design ◽  
State University ◽  
Yield Performance ◽  
Cropping Season ◽  
Port Harcourt ◽  
Rivers State

This study is aimed to evaluate the yield performance of 12 varieties of upland rice and to assess the agronomic traits that contribute to yield performance of these varieties. A 2-year field experiment was conducted in the Teaching and Research Farm of the Rivers State University, Port Harcourt, Nigeria. The twelve varieties which made up the twelve treatments were laid out in a Randomized Complete Block Design (RCBD) and replicated three times. The experimental site was loamy sand, medium acidic with the soil pH reduced in the second cropping season (pH 4.9 in 2012; and pH 4.8 in 2013). The varieties differed significantly amongst themselves in panicle weight, number of fertile spikelets, grain length/breath ratio, 1000 grain weight in 2012 and 2013 planting and grain yield in 2012 planting season. The ITA 321 had the highest yield of 10300.33 kg/ha in 2012 and 10533.33 kg/ha in 2013 followed by NERICA 1 having 9066.67 kg/ha (2012) and 9133.33 kg/ha (2013). The NERICA 2,3,4,5 and 6 also belonged to the high yielding group while APO, Vandana,  IR68 and ITA 150 recorded lower yields. Results of this evaluation have shown that ITA 321 and NERICA 1 can be grown in the tropical rainforest zone for paddy grain yield rather than ITA 150 which are already in use in this agro-ecological zone. They are recommended also for adoption and use in rice production instead of the popular ITA 150.

Exploring the breeding potential of Iranian emmer wheats to increase durum wheat tolerance to drought

2021 ◽  
Vol 19 (4) ◽  
pp. 363-374
Author(s):  
Majid Mohammadi ◽  
Aghafakhr Mirlohi ◽  
Mohammad Mahdi Majidi ◽  
Ali Rabbani
Keyword(s):  
Drought Tolerance ◽  
Grain Yield ◽  
Durum Wheat ◽  
Triticum Turgidum ◽  
Diallel Analysis ◽  
Diallel Cross ◽  
Yield Component ◽  
Narrow Sense Heritability ◽  
Partial Dominance ◽  
Tolerance Improvement

AbstractEmmer wheat (Triticum turgidum ssp. dicoccum) is one of the most promising gene sources for drought tolerance improvement of durum wheat (Triticum turgidum ssp. durum). Achieving desired results requires a conscious choice of crossing parents based on general and specific combining ability (GCA and SCA) and also understanding the genes action involved in controlling the desired traits. In this study a 12 × 12 full diallel cross was performed using four emmer and eight durum wheats. The 132 hybrid progenies along with their parental lines were field evaluated under water-stressed and non-stressed conditions. Based on the Griffing diallel analysis both GCA and SCA effects were highly significant for all measured traits under both water treatments indicating possibility of improvement for drought tolerance. In this respect, the amount of additive effect was higher than the non-additive suggesting the chance for genetic advancement through selection. Based on Hayman's graphical analyses under the two water conditions it was revealed that several grain yield component traits were under the control of partial dominance. In contrary, grain yield and most morphological traits showed either dominance or over-dominance gene action. Grain yield had a significant positive correlation with the number of kernels per spike, kernel diameter, grain weight per spike and harvest index. These traits also had greater share of additive effects, relatively high narrow-sense heritability and high Baker ratio suggesting effective indirect selection for grain yield. Most durum × emmer hybrids had grain yield and drought tolerance indices better than the parents indicating that Iranian emmer wheats have a great genetic potential for drought tolerance improvement of durum wheat.

scholarly journals Upland rice agronomic performance in response to different doses and sources of nitrogen

2020 ◽  
Vol 16 (2) ◽  
pp. 96-100
Author(s):  
Tácio Peres da Silva ◽  
Douglas Goulart Castro ◽  
Laís Moretti Tomé ◽  
Marco Renan Félix ◽  
Antônio Rosário Neto ◽  
...  
Keyword(s):  
Experimental Design ◽  
Grain Yield ◽  
Nitrogen Fertilization ◽  
Upland Rice ◽  
Block Design ◽  
Agronomic Performance ◽  
Nitrogen Application ◽  
Randomized Complete Block Design ◽  
The University ◽  
Different Doses

The aim of the present study was to evaluate the response of different doses and sources of nitrogen (N) on agronomic characteristics in upland riceas well astheclimaticand environmentalinfluence on nitrogen fertilization results. Theexperiments were conducted in the University of Lavras, during 2015/2016 and 2016/2017 crop seasons, the plots consisted of 4 lines of 3 linear meters, with spacing among rows of 35 cm and a useful plot of 4.2 m2. The experimental design was a randomized complete block design with three replications in a 4x4x 2factorial design. The factor doseconsisted in 0, 50,100 e 200 kg ha-1N and the factor sourcesconsisted in ammonium nitrate, ammonium sulphate, urea and polycote, totaling 16 treatments. The characteristics evaluatedwere plant height, grain yield, grain chalkness, 1000 grainsweight andyield. It was concluded that the addiction of doses and Nsources didnot change the agronomic performanceof the upland rice crop. There is an influence of the environment on the responses of plants to nitrogen application, being observed different results in different cropseasons.

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