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Featured researches published by Manoel Albino Coelho de Miranda.
Pesquisa Agropecuaria Brasileira | 2000
Rachel Benetti Queiroz-Voltan; Sandra dos Santos Sevá Nogueira; Manoel Albino Coelho de Miranda
The present study aimed at evaluating the effect of soil compaction on the root anatomy and plant development of two soybean (Glycine max (L.) Merrill) cultivars, IAC-8 and IAC-14, in pots. A clayey soil collected, from a superficial (0-200 mm) layer was used. The compaction levels consisted of 0.95 (control), 1.20, 1.35 and 1.50 kg L-1, which were obtained by compaction of some soil mass with a hydraulic press inside of iron cylinders. The soil compaction did not affect the anatomic structure of the roots, in any of the two cultivars. In the IAC-8, the leaf number, plant height and the dry matter of roots and stem decreased with the increase of soil density, and the root length was increased. In the IAC-14, the leaf number, foliar area, pod number, plant height, and weight of the dry matter of roots, stem and leaves decreased as the soil density increased, except for the intermediate densities (1.20 and 1.35), in which a trend to increase was observed in these variables. The soybean production was not affected by soil compaction, except for pod number in IAC-14, which showed differences as a function of the treatment. The results suggest that both cultivars can be well adapted to compacted soils in the analysed levels of compaction.The present study aimed at evaluating the effect of soil compaction on the root anatomy and plant development of two soybean (Glycine max (L.) Merrill) cultivars, IAC-8 and IAC-14, in pots. A clayey soil collected, from a superficial (0-200 mm) layer was used. The compaction levels consisted of 0.95 (control), 1.20, 1.35 and 1.50 kg L-1, which were obtained by compaction of some soil mass with a hydraulic press inside of iron cylinders. The soil compaction did not affect the anatomic structure of the roots, in any of the two cultivars. In the IAC-8, the leaf number, plant height and the dry matter of roots and stem decreased with the increase of soil density, and the root length was increased. In the IAC-14, the leaf number, foliar area, pod number, plant height, and weight of the dry matter of roots, stem and leaves decreased as the soil density increased, except for the intermediate densities (1.20 and 1.35), in which a trend to increase was observed in these variables. The soybean production was not affected by soil compaction, except for pod number in IAC-14, which showed differences as a function of the treatment. The results suggest that both cultivars can be well adapted to compacted soils in the analysed levels of compaction.
Bragantia | 1998
Adriana Vieira De Camargo Moraes; Marcelo Bento Paes de Camargo; H. A. A. Mascarenhas; Manoel Albino Coelho de Miranda; J. C. V. N. A. Pereira
The agrometeorological models allow better knowledge of the quantitative influence of the climatic conditions, such as drought effects on the soybean development and grain production. A good model requires the evaluation of the sensitivity indices and test for a specific variety and region. Phenological and yield data were taken from planting date experiments conducted at Ribeirao Preto, Instituto Agronomico Experimental Station during four growing seasons. Three cultivars were considered according the maturation group: IAC-13 (early), IAC-12 (semi-early) and IAC-11 (median). Additive and multiplicative type models were tested based upon the penalization of the crop yield potential according the ER/EP relation (actual/potential evapotranspiration) and water excess, derived by a 10-day soil water balance, occurred during four growth stages. Based on the models statistics, additive and multiplicative type models presented similar performance. The model which considers penalization including water excess presented the best performance for the three maturation groups, with R2 of 0.69 and d-index of agreement of 0.85 for the IAC-13 (early) cultivar; R2 of 0.72 and d-index of 0.73 for the IAC-12 (semi early) cultivar; and for the IAC-11 (median) cultivar, R2 of 0.79 and d-index of 0.73. Index terms: soybean, growth stage, soil water balance, agrometeorological models, crop production.
Bragantia | 1986
Carlos Jorge Rossetto; Toshio Igue; Manoel Albino Coelho de Miranda; André Luiz Lourenção
The performance of 35 soybean germplasms including 16 cultivars, 6 plant introductions and 13 lines derived from the soybean improvement program against stink bugs, was evaluated for two consecutive years, 1983/1984 and 1984/1985, in relation to the stink bugs (Hemiptera, Pentatomidae) species Piezodorus guildinii (Westwood), Euschistus heros (F.) and Nezara viridula (L.). The two experiments were conducted under field conditions at the Experimental Center of Instituto Agronomico located in Campinas, State of Sao Paulo, Brazil. A complete randomized block design with 35 treatments and 4 replications was used. The individual plot was a single row 2 meters long. Artificial infestations with adults were made to supplement the natural field infestation of stink bugs. The infestation level was moderate in the first year and severe in the second. Three criteria were used to judge the resistance to stink bugs: the percentual index of pod damage, the percentage of foliar retention after pod maturation and yield. The percentual index of pod damage is given by the formula 1/2 (% of pods with intermediate damage) + % of pods completely damaged. The percentage of foliar retention was visually estimated upon maturation of the pods. The cultivar Parana was the most susceptible treatment being recommended for use as a susceptible check for stink bugs. The lines IAC80-4228 and IAC80-598-2-4, obtained through the soybean breeding program for resistance to stink bugs, had good performance. They still present however some undesirable agronomic features and cannot be recommended for distribution to the farmers.
Bragantia | 1986
Marcelo Bento Paes de Camargo; Orivaldo Brunini; Manoel Albino Coelho de Miranda
The study was performed using phenological observation of field experiments carried out during three years (1977/78, 1978/79 and 1979/80), for four soybean cultivars in three localities. The proposed model to estimate crop yield was based on the reduction of the potential productivity when soil water content decreases below a critical value or when the surplus was above the potential evapotranspiration for a given period, in a manner that: YEst = (YPOT) x (FThe) x (FDef) x (FSur), where: YEst = estimated yield; YPot = potential yield for a defined locality, being a function of the cultivar and technology; FThe = thermal factor, to express the degree of crop development (accumulated degree days); FDef = effect of water deficit in the soil on crop yield; FSur = effect of water surplus on crop yield. A comparison between the observed and estimated yield was highly satisfactory with determination coefficient (R2) ranging from 0.76 to 0.87 for all cultivars.
Bragantia | 1987
André Luiz Lourenção; Manoel Albino Coelho de Miranda; Violeta Nagai
During the seasons of 1980/81 and 1981/82, the performance of eight soybean lines (IAC 73-228, IAC 77-3802, IAC 77-3823, IAC 78-2296, IAC 78-2318, IAC 78-3258, IAC 78-3278 and D72-9601-1) and two cultivars (Santa Rosa and TMU) was evaluated in relation to the attack of stink bugs in the field, at Campinas, State of Sao Paulo, Brazil. In the season of 1980/81, the low natural infestation of Piezodorus guildinii (West.) and Nezara viridula (L.) was supplemented by liberation of Euschistus heros (Fabr.) adults collected on soybean crops; in the following season, the high natural infestation was sufficient to cause severe damage to soybeans. Seven criteria of damage evaluation were utilized: foliar retention, yield, yield divided in four damage classes, percentage of the damage grain weight, weight of hundred seeds, oil content and germination percentage. The line IAC 73-228 confirmed its resistance and the same performance was observed for the IAC 78-2318. Nevertheless, both these lines have as unfavourable characteristics, small seeds and low oil content.
Bragantia | 1980
Jorge Alberto Marques Rezende; Manoel Albino Coelho de Miranda; H. A. A. Mascarenhas
) PANIZZI, A. R.; CORREA, B. S.; GAZZONI, D. L.; OLIVEIRA, E. B. de.; NEWMAN, G. G. & TURNIPSEED, S. G. Insetos da soja no Brasil. Londrina, EMBRAPA, 1977. 20p. (Boi. tecn. 1) (i) WILLIAMS, R. N.; PANAJA, J. R.; MOSCARDI, F.; SICHMANN, W.; ALLEN, G. E.; GREENE, G. & LASCA, D. H. C. Principais pragas da soja no Estado de Sao Paulo. Campinas CATI, Secao de Plantas Oleaginosas, 1973. 18p. (
Anais da Sociedade Entomológica do Brasil | 1999
André Luiz Lourenção; José Carlos Vila Nova Alves Pereira; Manoel Albino Coelho de Miranda; Gláucia Maria Bovi Ambrosano
The performance of soybean cultivars and lines belonging to two maturity groups (135-140 and 145-160 days of cycle) was evaluated during the 1995/96 and 1996/97 seasons in relation to damages caused by stink bugs and caterpillars in the field, at Ribeirao Preto, State of Sao Paulo, Brazil. Two experiments, one for each maturity group, were carried out, in each growing season, using a complete randomized block design. Infestation of Anticarsia gemmatalis Hub. occurred only in the first year. Stink bugs, Nezara viridula (L.), Euschistus heros (Fabr.) and predominantly Piezodorus guildinii (West.), occurred in both years with more severe infestation in the first year. The caterpillar defoliation was estimated by the percentage of eaten leaf area (PAFC). Three criteria were used to evaluate the damage caused by stink bugs: percentage of foliar retention (PRF), index of percent pod damage (IPDV) and yield. Based mainly in the first year, and regarding the earlier maturing genotypes, it can be considered that the line IAC 90-2971 presented resistance to caterpillars as well as to stink bugs similar to the line IAC 78-2318, the resistant control. In the experiment with the longer cycle genotypes, line IAC 93-2162 showed susceptibility to both caterpillars and stink bugs, in spite of presenting low PRF. The opposite occurred with line IAC 90-1970, with high PRF but low leaf injuries caused by ceterpillars, low IPDV and high yield. Besides the good performance of IAC 90-1970, the behavior of the cultivar IAC 9 and the line IAC 90-3052 could also be distinguished in relation to the low damages caused by stink bugs.
Bragantia | 1988
H. A. A. Mascarenhas; Manoel Albino Coelho de Miranda; Ondino Cleante Bataglia; José Carlos Vila Nova Alves Pereira; Roberto Tetsuo Tanaka
Boron deficiency is not usual in soybean crop in Brazil. The observation reported in this article occurred at Guaira, State of Sao Paulo, Brazil on a low flat excessively limed and high in organic matter land. The soil boron content in the areas with plant deficiency was 0.06 ppm while in the areas of apparently healthy plants the soil boron content was 0.11 ppm extracted with boiling water. The leaf concentration for deficient and healthy plants was 10 and 19 ppm respectively. Primary leaves of deficient plants were leathery and thick and there was death of the apical buds. There were few flower formation and pod setting. The boron deficient plants were dwarf with thick stems creating difficulty at harvest and soybean yield was considerably reduced.
Bragantia | 1980
Jorge Alberto Marques Rezende; Manoel Albino Coelho de Miranda; H. A. A. Mascarenhas
) PANIZZI, A. R.; CORREA, B. S.; GAZZONI, D. L.; OLIVEIRA, E. B. de.; NEWMAN, G. G. & TURNIPSEED, S. G. Insetos da soja no Brasil. Londrina, EMBRAPA, 1977. 20p. (Boi. tecn. 1) (i) WILLIAMS, R. N.; PANAJA, J. R.; MOSCARDI, F.; SICHMANN, W.; ALLEN, G. E.; GREENE, G. & LASCA, D. H. C. Principais pragas da soja no Estado de Sao Paulo. Campinas CATI, Secao de Plantas Oleaginosas, 1973. 18p. (
Anais da Sociedade Entomológica do Brasil | 1997
André Luiz Lourenção; Manoel Albino Coelho de Miranda; José Carlos Vila Nova Alves Pereira; Gláucia M.B. Ambrosano
The performance of soybean cultivars and lines belonging to two maturity groups (110-125 and 140-160 days of cycle) was evaluated in two experiments under field conditions in relation to the attack of stink bugs and defoliators. The criterion used to estimate the defoliation was the PAFC (percentage of eaten leaf area). Three criteria were used to evaluate the damage caused by stink bugs: percentage of foliar retention, index of percent pod damage and yield. Among genotypes of the early maturity group (IAC 100, IAC 17, IAC Holambra Stuart-2, IAS 5 and IAC 83-311) no difference in resistance to the defoliators (predominantly Anticarsia gemmatalis Hubner) was observed. However, in relation to stink bugs [Nezara viridula (L.), Euschistus heros (Fabr.) and, predominantly Piezodorus guildinii (West.)] different levels of resistance could be detected. Regarding pod damage and foliar retention ratings, genotypes IAC 83-311 and IAS 5 were the most damaged, while IAS 5 was the only genotype rated susceptible as to yield criterion. The genotypes of longer cycle (145-160 days) comprised eleven lines of the soybean breeding program carried out at the IAC and three cultivars (IAC 14, IAC 8 and IAC PL-1). In this group significant differences among the treatments in relation to defoliators were observed: line IAC 78-2318, with multiple insect resistance, confirmed its behavior while cultivar IAC PL-l was the most defoliated, showing high susceptibility. Genotypes of this maturity group could also be ranked as to resistance to stink bugs; considering yield, most of the breeding lines showed good performance, yielding higher than the three cultivars.
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