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  • 1
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    Trigo: três épocas de semeadura em Capão Bonito, SP, no período 1981-85
    FapUNIFESP (SciELO) ; 1988
    In:  Bragantia Vol. 47, No. 2 ( 1988), p. 255-275
    Details
    In: Bragantia, FapUNIFESP (SciELO), Vol. 47, No. 2 ( 1988), p. 255-275
    Abstract: This paper presents the behavior of eighteen wheat cultivars at three seeding times (21.st to 31.st of March, 10.th to 20.th of April and 20.th to 30.th of May) in experiments carried out at Capão Bonito Experimental Station, Stare of São Paulo, Brazil, in the period 1981-1985. Grain yield, disease resistance, plant height, hectolitric weight, 1000 grain weight were evaluated for each experiment. Soil water availability was obtained by water balances taken at each ten days, considering 125 mm as the soil water retention capacity. The results showed that the seeding time from 21.st to 31.st of March was the best considering grain yield. The disease occurrence was influenced too much by climatic conditions, meanly caused by Helminthosporium sp. The cultivars CNT 7, BR 1, Paraguay 281, CNT 8, BH 1146, IAC 18 and IAC 5 presented high grain yield at the seeding time from 21.st to 31.st-of March, and it was not found significant differences among them. Tall varieties exhibited the best grain yield at he first and second seeding times. Grain yield was correlated positively with 1000 grain weight, showing this character to be a good paramether to express the yield potential of a wheat cultivars seeded at three different times.
    Type of Medium: Online Resource
    ISSN: 0006-8705
    URL: Article
    DOI: 10.1590/S0006-87051988000200010
    Language: Unknown
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 1988
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  • 2
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    Avaliação de genótipos de trigo para a região do Vale do Paranapanema ano quadriênio 1981-84
    FapUNIFESP (SciELO) ; 1986
    In:  Bragantia Vol. 45, No. 2 ( 1986), p. 257-277
    Details
    In: Bragantia, FapUNIFESP (SciELO), Vol. 45, No. 2 ( 1986), p. 257-277
    Abstract: Wheat cultivars were evaluated on experiments in soils with and without aluminum toxicity in the Paranapanema Valley, in the State of Sao Paulo, Brazil, during the period 1981-1984. The characteristics studied were related to reactions to the agent of stem and leaf rusts, reaction to Helminthosporium sp. and the effect of climatic conditions. There was no difference in grain yield among the cultivars presenting sensitivity to aluminum toxicity, however the tolerant cultivars PAT 72247, CEP 7780 and BH 1146 showed good performance in relation to grain yield. The cultivars Anahuac, Sparrow"S", CEP 74138, CEP 7780, R 30464-77, CNT 8, El Pato and INIA 66 presented resistance to stem rust. The cultivar IAPAR 1 (Mitacoré) showed resistance to leaf rust. Alondra 46 classified as resistant to leaf rust until 1982, had the resistance broke down in 1983. The occurrence of leaf diseases caused by Helminthosporium sp. was variable during the period of study increasing its frequency when the plants were submitted to a high humidity period after the pathogen inoculation. The climatic conditions were very different to compare data from different years.
    Type of Medium: Online Resource
    ISSN: 0006-8705
    URL: Article
    DOI: 10.1590/S0006-87051986000200006
    Language: Unknown
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 1986
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  • 3
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    Melhoramento do trigo: XXI. Avaliação de linhagens em diferentes regiões paulistas
    FapUNIFESP (SciELO) ; 1989
    In:  Bragantia Vol. 48, No. 1 ( 1989), p. 53-71
    Details
    In: Bragantia, FapUNIFESP (SciELO), Vol. 48, No. 1 ( 1989), p. 53-71
    Abstract: Twenty three inbred lines obtained at the Instituto Agronômico from the wheat breeding program plus the cultivars BH-1146 and Alondra-S-46 were evaluated in field experiments carried out at Campinas Experiment Center, Capão Bonito and Tietê Experiment Stations, and at two farms located in the Paranapanema Valley, during the period 1984-86. Grain yield, plant height, number of days from emergence to flowering and from emergence to maturation, percentage of lodged plants, head length, number of grain per spike and per spikelet, number of spikelets per spike, weight of 100 grains, and resistance to stem and leaf rusts were evaluated under field conditions. The resistance to stem and leaf rusts was tested in the greenhouse, and tolerance to aluminum toxicity was tested in the laboratory. Considering the experiments carried out at Capão Bonito the line 19 presented good productivity showing moderate resistance to Helminthosporium sp. and high tolerance to aluminum toxicity. This line was early in maturity and exhibited tall type of plant but it was resistant to lodging. The cultivars BH-1146 and the line 16 showed high grain yield at the Paranapanema Valley. The line 16 presented a semidwarf type, early maturity, field resistance to leaf rust, resistance to lodging and tolerance to Al toxicity. At Tietê the line 16 showed high productivity. There were no differences among the lines at Campinas. The lines 1, 3, 9, 10, 11, 15, 16, 22, 23 and the cultivars Alondra-S-46 exhibited semidwarf type when compared to the tall cultivars BH-1146. The lines 9, 10, 11 and the cultivars Alondra-S-46 were resistant to stem rust, presenting at seedling stage, resistance to six races under greenhouse conditions. The lines 11, 16, 18 and the cultivars BH-1146 presented low levels of the leaf rust from natural infection out in the field. The line 7 with long heads, the lines 7 and 8 with large number of spikelets per spike, the line 2 presenting high head fertility and the line 21 exhibiting heavy grains were considered as good genetic sources of these characteristics for the wheat breeding program. The lines 1, 3, 5, 12, 13, 14, 16, 17, 18, 19, 21 and the cultivars BH-1146 were tolerant to the presence of 10 mg/liter of Al in the nutrient solution.
    Type of Medium: Online Resource
    ISSN: 0006-8705
    URL: Article
    DOI: 10.1590/S0006-87051989000100006
    Language: Unknown
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 1989
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  • 4
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    Melhoramento do trigo: XV. Produtividade e outras características agronômicas de novas linhagens para o Estado de São Paulo
    FapUNIFESP (SciELO) ; 1987
    In:  Bragantia Vol. 46, No. 1 ( 1987), p. 105-120
    Details
    In: Bragantia, FapUNIFESP (SciELO), Vol. 46, No. 1 ( 1987), p. 105-120
    Abstract: Twenty two inbred lines obtained at the Instituto Agronômico from the wheat breeding program plus the cultivars BH-1146, IAC-18 and Alondra S-46 were evaluated in field experiments carried out at Campinas Experimental Center, Tietê and Capão Bonito Experimental Stations and at Floresta Negra Farm, Maracaí during the years of 1983, 1984 and 1985. Grain yield, plant height, number of days from emergence to flowering period and from emergence to maturation, percentage of lodging, head length, number of grain per spike and per spikelet, number of spikelets, weight of 100 grains, resistance to powdery mildew, and to stem and leaf rusts were evaluated under field conditions. Tests of resistance to stem and leaf rusts and to aluminum tolerance were also made, respectively, in greenhouse and in laboratory. The lines IAC-75, IAC-77, IAC-79, IAC-80, IAC-82, IAC-84, IAC-85, IAC-87, IAC-88, IAC-89, IAC-90, IAC-91 and IAC-93 showed superior productivity. They differed from the 'Alondra S-46' but it was not found significant differences among these lines and the control cultivars BH-1146 and IAC-18. In relation to powdery mildew, the lines IAC-75, IAC-78, IAC-80, IAC-93 and IAC-94 showed good resistance under field conditions. The lines IAC-76 and IAC-96 and the cultivar Alondra S-46 were resistant at seedling stage to eight races of the causal agent of the stem rust, under greenhouse conditions, 'IAC-94' was resistant to six races and 'IAC-79', 'IAC-81', 'IAC-84', 'IAC-89', 'IAC-90', and 'IAC-95' were resistant to five races. In relation to leaf rust the line IAC-96 showed high resistance under natural infection out in the field and presented resistance to three races of this rust disease at the seedling stage, under greenhouse conditions. The lines IAC-76, IAC-90, IAC-91, IAC-94, IAC-96 and the cultivar Alondra S-46 exhibited the semi-dwarf type when compared to the tall cultivars BH-1146 and IAC-18. The lines IAC-78, IAC-79, IAC-82, IAC-85, IAC-87, IAC-88, IAC-90 and IAC-93 as well as 'BH-1146' and 'IAC-18' were tolerant to the presence of 10 mg/l of Al3+ in the nutrient solution.
    Type of Medium: Online Resource
    ISSN: 0006-8705
    URL: Article
    DOI: 10.1590/S0006-87051987000100011
    Language: Unknown
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 1987
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  • 5
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    Melhoramento do trigo: XXIII. Avaliação de linhagens na região do vale do Paranapanema, em Capão Bonito e em Tietê, em 1984-88
    FapUNIFESP (SciELO) ; 1990
    In:  Bragantia Vol. 49, No. 1 ( 1990), p. 43-67
    Details
    In: Bragantia, FapUNIFESP (SciELO), Vol. 49, No. 1 ( 1990), p. 43-67
    Abstract: Twenty two inbred lines from the wheat breeding program at the Instituto Agronômico of Campinas, plus the cultivars BH-1146, Alondra-S-46 and Anahuac were evaluated in six field experiments carried out at different locations of the Paranapanema Valley, during the period of 1984-88. Grain yield, plant height, number of days from emergence to flowering, percentage of lodged plants, head length, number of grains per spike and per spikelet, number of spikelets per head, weight of 100 grains, and resistance to stem and leaf rusts, to leaf spots due to Helminthosporium sp. and Septoria sp., and to powdery mildew were evaluated under field conditions. Tests for resistance to stem and leaf rusts and to aluminum tolerance, were performed in greenhouse and laboratory, respectively. The genotypes were also evaluated in trials carried out on acid soil at Capão Bonito and under high soil fertility condition at Tietê. At Paranapanema Valley and Capão Bonito the line 19 (CNT-9 x BH-1146) = IAC-227 showed good grain yield presenting medium cycle and medium plant heigth. At Tietê, jhe lines with a medium cycle from emergence to flowering were the most productive: 1 (Alondra-S-46 x IAC-5) = IAC-225 and 17 (Alondra-1 x IAC-5) = IAC-226, of short plants; and the line 3 (Alondra-S-46 x C-3), of tall plants. The line 21 (IAC-5 x Alondra-S-46) was resistant to: (a) two race mixtures of stem rust; (b) leaf rust, under field condition and two race mixtures of this rust, under greenhouse condition; (c) powdery mildew in adult stage of plants; and (d) leaf spots, showing a relatively low amount of them, under field condition. The lines 6 (C-3 x Sonora-64) and 17 (Alondra-1 x IAC-5) showed to be good genetic sources for long head, the line 17 for large number of spikelets and grains per head, the line 10 (Jupateco x IAC-13) for large number of grains per spikelet and the line 5 (Tobari-66 x BH-1146) for heavy grains. The lines 7, 9, 13, 16, 17 and 19 and the cultivar BH-1146 exhibited tolerance to the presence of 10 mg/liter of Al3+ in the nutrient solution.
    Type of Medium: Online Resource
    ISSN: 0006-8705
    URL: Article
    DOI: 10.1590/S0006-87051990000100005
    Language: Unknown
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 1990
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  • 6
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    Melhoramento do trigo: XIX. Avaliação de novas linhagens em diferentes regiões paulistas
    FapUNIFESP (SciELO) ; 1988
    In:  Bragantia Vol. 47, No. 2 ( 1988), p. 195-211
    Details
    In: Bragantia, FapUNIFESP (SciELO), Vol. 47, No. 2 ( 1988), p. 195-211
    Abstract: Twenty three inbred lines obtained at the Instituto Agronômico from the wheat breeding program plus the cultivars BH-1146 and Alondra-S-46 were evaluated in field experiments carried out at Campinas, Capão Bonito and Tatuí Experimental Stations, and at two farms located in Paranapanema Valley, during the period 1984-86. Grain yield, plant height, number of days from emergence to flowering and from emergence to maturation, percentage of lodged plants, head length, number of grains per spike and spikelet, number of spikelets per spike, weight of 100 grains, and resistance to stem and leaf rust were evaluated under field conditions; tests of resistance to stem and leaf rusts and to aluminum were also made, respectively, in greenhouse and in laboratory. The lines 12, 15 and 18 and the cultivars BH-1146 presented good productivity considering the mean of the nine experiments, showing significant differences from the cultivars Alondra-S-46. In relation to stem rust, Alondra-S-46' presented at seedling stage, resistance to the six races and the lines 9 and 11 showed resistance to five and four races, respectively. The lines 2, 3, 6, 10, 11 and 16 and 'Alondra-S-46' under field conditions were the most resistant to stem rust. The lines 2 (IAC-172) and 20 and the cultivars BH-1146 presented low levels of the leaf rust in natural infection out in the field. The lines 3 (IAC-231), 8, 9, 20,21 and 22 and the cultivars Alondra-S-46 showed semi-dwarf type when compared to the tall cultivars BH-1146. The line 20 was considered as a genetic source to increase the head length and the number of grains per spike and per spikelet. The lines 1, 3, 4, 12, 17, 18 and 19 and the 'BH-1146' were tolerant to the presence of 10 mg/liter of Al3+ in the nutrient solution.
    Type of Medium: Online Resource
    ISSN: 0006-8705
    URL: Article
    DOI: 10.1590/S0006-87051988000200005
    Language: Unknown
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 1988
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  • 7
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    Melhoramento do trigo: XII. Comportamento de novas linhagens e cultivares no Estado de São Paulo
    FapUNIFESP (SciELO) ; 1985
    In:  Bragantia Vol. 44, No. 2 ( 1985), p. 669-685
    Details
    In: Bragantia, FapUNIFESP (SciELO), Vol. 44, No. 2 ( 1985), p. 669-685
    Abstract: Twenty one inbred lines obtained at the Instituto Agronômico from the wheat breeding program plus the cultivars BH-1146, IAC-18, IAC-17, and Alondra-S-46 were evaluated in field experiments carried out at Campinas Experiment Center and Capão Bonito Experiment Station, during the years of 1982 and 1983, at Tietê Experiment Station, in 1982 and at Floresta Negra Farm, Maracaí, in 1983. Grain yield, plant height, number of days from emergence to flowering and from emergente to maturation, percentage of layed plants, head length, number of grain per spike and per spikelet, number of spikelets, weight of 100 grains, and resistance to stem and leaf rusts were evaluated under field conditions and tests of resistance to stem and leal rusts and to aluminum were also made, respectively, in greenhouse and in laboratory. Considering the trials planted under sprinkler irrigation, at Campinas, the lines IAC-60 and IAC-67 showed good performance regarding to grain yield. In Capão Bonito, represented by acid soils, the lnes IAC-66, IAC-60 and IAC-69 showed high grain yield. The lines IAC-64, IAC-68, IAC-71 and IAC-60 presented good productivity at Tietê Experiment Station and IAC-67, IAC-63 and IAC-64 were more adapted to high soil fertility showing the best grain yields at Maracaí. The lines IAC-52, IAC-53, IAC-54, IAC-55, IAC-56, IAC-57, IAC-58, IAC-60, IAC-64, IAC-65, IAC-67, IAC-71 and the cultivar Alondra-S-46 exhibited semi-dwarf type when compared to the tall cultivar BH-1146. In relation to stem rust, the lines IAC-62 and IAC-65 and the cultivar Alondra-S-46 showed very good resistance presenting at seedling stage, resistance to seven rates under both greenhouse and field conditions. The line IAC-64 was resistant to four and IAC-52 and IAC-55 to three races of leaf rust in the seedling stage under greenhouse condition. The lines IAC-51, IAC-56, IAC-61, IAC-62, IAC-63 and IAC-67 presented good resistance to this rust in natural infection out in the fíeld. The lines IAC-51, IAC-60, IAC-63, IAC-68 and IAC-70 as well as 'BH-1146' and 'IAC-18' were tolerant to the presente of 10 mg/l of Al3+ in the nutrient solution.
    Type of Medium: Online Resource
    ISSN: 0006-8705
    URL: Article
    DOI: 10.1590/S0006-87051985000200014
    Language: Unknown
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 1985
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  • 8
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    Melhoramento do trigo: XVIII. Comportamento de linhagens em cinco regiões paulistas
    FapUNIFESP (SciELO) ; 1988
    In:  Bragantia Vol. 47, No. 2 ( 1988), p. 177-194
    Details
    In: Bragantia, FapUNIFESP (SciELO), Vol. 47, No. 2 ( 1988), p. 177-194
    Abstract: Twenty two inbred lines from the wheat breeding program at the Instituto Agronômico of Campinas plus the cultivars BH-1 146, Alondra-S-46 and IAC-5 were evaluated in field experiments carried out at Campinas, Capão Bonito and Tietê Experimental Stations, and at two farms located in the Paranapanema Valley, during the period 1984-1986. Grain yield, plant height, number of days from emergence to flowering and from emergence to maturation, percentage of lodged plants, head length, number of grain per spike and per spikelet, number of spikelets, weight of 100 grains, and resistance to stem and leaf rusts, to Helminthosporium sp. and to powdery mildew were evaluated under field conditions. Tests of resistance to stem and leaf rusts and to aluminum tolerance, were made in greenhouse and laboratory, respectively. At Capão Bonito and Paranapanema Valley the cultivars BH-1146 and the line 12 showed good grain yield in upland conditions. The tines 4, 9 and 13 at Campinas and the line 8 at Tatuí presented good productivity under sprinkler irrigation. The cultivars BH-1146 and the lines 13, 20 and 14 exhibited the highest grain yield considering the average of the nine experiments. The lines 2, 7, 8,17 and 18 and the cultivars Alondra-S-46 exhibited semidwarf type when compared to the tall cultivars BH-1 146 and IAC-5. In relation to stem rust, the lines 7 and 8 and the cultivars Alondra-S-46 showed resistance at seedling stage to the six races and the lines 17 and 18 were resistant to five races, under greenhouse conditions. The lines 1, 2, 7, 8, 12 and 17, plus the cultivars Alondra-S-46 presented resistance to stem rust under field conditions. The lines 1, 5, 8 and 18 exhibited low levels of leaf rust under natural infection out in the field. The lines 11, 12, 13, 19, 20 and 21 as well as 'BH-1146' were tolerant to the presence of 10mg/liter of Al3+ in the nutrient solution.
    Type of Medium: Online Resource
    ISSN: 0006-8705
    URL: Article
    DOI: 10.1590/S0006-87051988000200004
    Language: Unknown
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 1988
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  • 9
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    Melhoramento do trigo: XVI. Comportamento de novas linhagens em diferentes regiões do Estado de São Paulo
    FapUNIFESP (SciELO) ; 1987
    In:  Bragantia Vol. 46, No. 2 ( 1987), p. 217-232
    Details
    In: Bragantia, FapUNIFESP (SciELO), Vol. 46, No. 2 ( 1987), p. 217-232
    Abstract: Twenty two inbred lines obtained at the Instituto Agronômico, from the wheat breeding program plus the cultivars BH-1146, IAC-18 and Alondra-S-46 were evaluated in field experiments carried out at Campinas Experimental Center, at Tietê and Capão Bonito Experimental Stations and at Santa Inês Farm, Maracaí, State of São Paulo, Brazil, during the years of 1983, 1984 and 1985. Grain yield, plant height, number of days from emergence to flowering and from emergence to maturation, percentage of lodging, head lenght, number of grain per spike and per spikelet, number of spikelets, weight of 100 grains, and resistance to the powdery mildew and to the stem and leaf rust agents, were evaluated under field conditions. Tests of resistance to stem and leaf and to aluminum tolerance were also made, respectively, in greenhouse and in laboratory. In relation to grain yield the lines IAC-103, IAC-104, IAC-107, IAC-167 and PAT-73121 showed good performance, but they did not differ from the control cultivars, BH-1146, IAC-18 and Alondra-S-46. The lines IAC-104, IAC-107, IAC-111, IAC-167, ISWYN-31/82 and Kenya Kifaru exhibited the semidwarf type when compared to the tall cultivars BH-1146 and IAC-18. In relation to the powdery mildew disease, the lines IAC-108 and ISWYN-31/82 showed high resistance under field conditions. The line IAC-167 and the cultivar Alondra-S-46 were resistant to eight races and IAC-103 and Kenya Kifaru were resistant to seven races of P. graminis tritici, causal agent of stem rust under greenhouse conditions. The lines IAC-104, IAC-108, IAC-110, IAC-111, IAC-167, ISWYN-31/82 and Kenya Kifaru showed high resistance to stem rust under natural conditions of plant infection. The line IAC-1 67 was resistant to three races of P. recondita at the seedling stage under greenhouse conditions. The lines IAC-100, IAC-101, IAC-111, IAC-167 and PAT-73121 presented good resistance to this disease under natural infection out in the field. The lines IAC-99 and IAC-109 were as tolerant to the presence of 10 mg/l of Al3+ in the nutrient solution as the cultivars IAC-18 and BH-1146.
    Type of Medium: Online Resource
    ISSN: 0006-8705
    URL: Article
    DOI: 10.1590/S0006-87051987000200006
    Language: Unknown
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 1987
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  • 10
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    Melhoramento do trigo: XVII. comportamento de linhagens de origem mexicana no estado de São Paulo
    FapUNIFESP (SciELO) ; 1988
    In:  Bragantia Vol. 47, No. 1 ( 1988), p. 25-41
    Details
    In: Bragantia, FapUNIFESP (SciELO), Vol. 47, No. 1 ( 1988), p. 25-41
    Abstract: Twenty three Mexican inbred lines and the cultivars IAC-24 and Anahuac were evaluated in field experiments carried out at Monte Alegre do Sul and Tatuí Experimental Stations and at Maracaí during the period of 1984 to 1986. Grain yield, number of days from emergence to flowering and from emergence to maturation, plant height, percentage of layed plants, head length, number of grains per spike and spikelet, number of spikelets per spike, resistance to stem and leaf rust were evaluated under field (adult plants) and greenhouse conditions (seedling stage). Tolerance to Al toxicity was evaluated in laboratory using nutrient solutions. The lines IAC-215, IAC-216, IAC-217, and IAC-219 showed high grain yield but they did not differ from the check cultivars. In relation to stem and leaf rusts the lines Festiguay-Tecolote 363.30.6.1 x Ciguena, and [4777² x (Frontana/Kenya 58//Newthatch)] Gabo/Pavon-76 (T-12 and T-13) showed resistance to nine races of stem rust and to six races of leaf rust. The genotypes IAC-215, IAC-216, Yaco"S", IAC-218, Dougga-Bluejay (T-4), Buckbuck"S"-Bulbul"S" presented early plants; IAC-215, Yaco"S" and Jupateco 73-Bluejay showed short plants; Bonanza-Yecora F-70/Florence 35.70 exhibited long heads, with large number of spikelets and grains per spike; Jupateco 73-Bluejay had high head fertility and [(IAS-58-IAS-55 x Alondra"S"/IAC-5) Alondra"S" - IAS-58 103A x Alondra"S" ] , IAC-215, IAC-216, IAC-219 and IAC-24 were the most tolerant material to 10 mg/liter of Al3+. These genotypes would be of great value as genetic sources of this characters in a breeding program for the State of Sao Paulo, Brazil.
    Type of Medium: Online Resource
    ISSN: 0006-8705
    URL: Article
    DOI: 10.1590/S0006-87051988000100004
    Language: Unknown
    Publisher: FapUNIFESP (SciELO)
    Publication Date: 1988
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