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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
24/09/2018 |
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Data da última atualização: |
24/09/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SCHAFFERT, R. E.; VIRK, D. S.; SENIOR, H. |
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Afiliação: |
ROBERT EUGENE SCHAFFERT, CNPMS; Bangor University; PBS International. |
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Título: |
Are nonwoven synthetic pollination bags a better choice for sorghum breeding? |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Journal of Plant Breeding and Crop Science, v. 10, n. 3, p. 58-68, 2018. |
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DOI: |
10.5897/JPBCS2017.0704 |
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Idioma: |
Inglês |
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Conteúdo: |
This work investigated the effects of seven pollination bag treatments on three varieties of sorghum for: grain loss to birds; total weight of five panicles (g); total grain weight of five panicles (g); average grain weight per panicle (g); germination per cent; and occurrence of grain mold during 2016. Varieties were: 1167048 hybrid (brown seeded); BR007B (red seeded); and P9401 (white seeded). The bag treatments were: 1. No bagging; 2. Kraft paper; 3. Kraft paper + plastic bag screen; 4 Used duraweb® SG1; 5. Used duraweb® SG2; 6. New duraweb® SG1; 7. New duraweld® SG2. High bird pressure resulted in 100% seed loss on uncovered panicles and 75% under Kraft paper pollination bags. Birds preferred white seeded P9401, which led to no seed recovery under Kraft paper bags. There was virtually no bird damage with all other pollination bags. For panicle and grain yields the varieties performed in the order 1167048>BR007B>P9401. Unprotected panicles and paper bag treatments had the lowest yields. Panicles covered with the new synthetic bags exhibited 195 to 652% higher yields compared to Kraft paper bags. Varieties x bag type interactions were not important as they contributed 4 to 6% to the total sum of squares for yield traits. Germination test under normal and stress conditions showed no significant adverse effect of bag treatments on seed health. Reused bags performed as well as new bags for all of these traits. Varieties differed significantly for the occurrence of five grain mold pathogens, with highest occurrence of Alternaria, up to 40%, on 1167048 hybrid. Of the five pathogens, bag types differed significantly for Phoma with the highest occurrence of 9% on re-used duraweb®SG2 bags. Thus bags require disinfecting and cleaning before re-use. It is concluded that nonwoven synthetic bags are a better choice than the Kraft paper pollination bags for increasing the grain yield and virtually eliminating the bird damage in sorghum. MenosThis work investigated the effects of seven pollination bag treatments on three varieties of sorghum for: grain loss to birds; total weight of five panicles (g); total grain weight of five panicles (g); average grain weight per panicle (g); germination per cent; and occurrence of grain mold during 2016. Varieties were: 1167048 hybrid (brown seeded); BR007B (red seeded); and P9401 (white seeded). The bag treatments were: 1. No bagging; 2. Kraft paper; 3. Kraft paper + plastic bag screen; 4 Used duraweb® SG1; 5. Used duraweb® SG2; 6. New duraweb® SG1; 7. New duraweld® SG2. High bird pressure resulted in 100% seed loss on uncovered panicles and 75% under Kraft paper pollination bags. Birds preferred white seeded P9401, which led to no seed recovery under Kraft paper bags. There was virtually no bird damage with all other pollination bags. For panicle and grain yields the varieties performed in the order 1167048>BR007B>P9401. Unprotected panicles and paper bag treatments had the lowest yields. Panicles covered with the new synthetic bags exhibited 195 to 652% higher yields compared to Kraft paper bags. Varieties x bag type interactions were not important as they contributed 4 to 6% to the total sum of squares for yield traits. Germination test under normal and stress conditions showed no significant adverse effect of bag treatments on seed health. Reused bags performed as well as new bags for all of these traits. Varieties differed significantly for the occurrence of five grain ... Mostrar Tudo |
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Palavras-Chave: |
Saco de polinização. |
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Thesagro: |
Grão; Rendimento; Sorgo. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/183408/1/Are-nonwoven.pdf
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Marc: |
LEADER 02575naa a2200205 a 4500
001 2096207
005 2018-09-24
008 2018 bl uuuu u00u1 u #d
024 7 $a10.5897/JPBCS2017.0704$2DOI
100 1 $aSCHAFFERT, R. E.
245 $aAre nonwoven synthetic pollination bags a better choice for sorghum breeding?$h[electronic resource]
260 $c2018
520 $aThis work investigated the effects of seven pollination bag treatments on three varieties of sorghum for: grain loss to birds; total weight of five panicles (g); total grain weight of five panicles (g); average grain weight per panicle (g); germination per cent; and occurrence of grain mold during 2016. Varieties were: 1167048 hybrid (brown seeded); BR007B (red seeded); and P9401 (white seeded). The bag treatments were: 1. No bagging; 2. Kraft paper; 3. Kraft paper + plastic bag screen; 4 Used duraweb® SG1; 5. Used duraweb® SG2; 6. New duraweb® SG1; 7. New duraweld® SG2. High bird pressure resulted in 100% seed loss on uncovered panicles and 75% under Kraft paper pollination bags. Birds preferred white seeded P9401, which led to no seed recovery under Kraft paper bags. There was virtually no bird damage with all other pollination bags. For panicle and grain yields the varieties performed in the order 1167048>BR007B>P9401. Unprotected panicles and paper bag treatments had the lowest yields. Panicles covered with the new synthetic bags exhibited 195 to 652% higher yields compared to Kraft paper bags. Varieties x bag type interactions were not important as they contributed 4 to 6% to the total sum of squares for yield traits. Germination test under normal and stress conditions showed no significant adverse effect of bag treatments on seed health. Reused bags performed as well as new bags for all of these traits. Varieties differed significantly for the occurrence of five grain mold pathogens, with highest occurrence of Alternaria, up to 40%, on 1167048 hybrid. Of the five pathogens, bag types differed significantly for Phoma with the highest occurrence of 9% on re-used duraweb®SG2 bags. Thus bags require disinfecting and cleaning before re-use. It is concluded that nonwoven synthetic bags are a better choice than the Kraft paper pollination bags for increasing the grain yield and virtually eliminating the bird damage in sorghum.
650 $aGrão
650 $aRendimento
650 $aSorgo
653 $aSaco de polinização
700 1 $aVIRK, D. S.
700 1 $aSENIOR, H.
773 $tJournal of Plant Breeding and Crop Science$gv. 10, n. 3, p. 58-68, 2018.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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Biblioteca |
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Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Algodão; Embrapa Clima Temperado. |
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Data corrente: |
21/07/2014 |
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Data da última atualização: |
16/04/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
BRITO, G. G. de; SUASSUNA, N. D.; SILVA, V. N.; SOFIATTI, V.; DIOLA, V.; MORELLO, C. de L. |
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Afiliação: |
GIOVANI GREIGH DE BRITO, CPACT; NELSON DIAS SUASSUNA, CNPA; Vivianny Nayse Silva; VALDINEI SOFIATTI, CNPA; Valdir Diola; CAMILO DE LELIS MORELLO, CNPA. |
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Título: |
Leaf-level carbon isotope discrimination and its relationship with yield components as a tool for cotton phenotyping in unfavorable conditions. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Acta Scientiarum, v. 36, n. 3, p. 335-345, jul./set. 2014. |
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ISSN: |
1807-8621 |
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DOI: |
10.4025/actasciagron.v36i3.17986 |
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Idioma: |
Inglês |
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Conteúdo: |
The initial goal of this study was to measure the efficiency of carbon isotope discrimination (?) in distinguishing between cotton plant genotypes subjected to two water regimes. In addition, ? measurements, leaf water potential and gas exchange ratios were monitored. Using Brazilian breeding lines, this study also tested the usability of ? as a proxy for selecting high-performing yield components in cotton plants grown in unfavorable conditions, particularly water deficiency. For these experiments, ? and yield components were measured and their correlations analyzed. Differences among cotton genotypes for ? (p < 0.0001) were verified, and it was found that this variable was significantly correlated with gas exchange. There was a significant positive correlation between ? and seed cotton yield only in the site experiencing severe water deficiency (Santa Helena de Goiás). However, ? had a significant negative correlation with fiber percentage. Our results indicate that ? is a suitable tool for cotton phenotyping, and it may be applied in cotton breeding programs that aim to produce high-performing yield components in unfavorable conditions. |
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Palavras-Chave: |
Estresse abiótico; Fracionamento do carbono; Troca gasosa. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/122450/1/17986-103271-1-PB.pdf
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Marc: |
LEADER 01945naa a2200241 a 4500
001 2013273
005 2015-04-16
008 2014 bl uuuu u00u1 u #d
022 $a1807-8621
024 7 $a10.4025/actasciagron.v36i3.17986$2DOI
100 1 $aBRITO, G. G. de
245 $aLeaf-level carbon isotope discrimination and its relationship with yield components as a tool for cotton phenotyping in unfavorable conditions.$h[electronic resource]
260 $c2014
520 $aThe initial goal of this study was to measure the efficiency of carbon isotope discrimination (?) in distinguishing between cotton plant genotypes subjected to two water regimes. In addition, ? measurements, leaf water potential and gas exchange ratios were monitored. Using Brazilian breeding lines, this study also tested the usability of ? as a proxy for selecting high-performing yield components in cotton plants grown in unfavorable conditions, particularly water deficiency. For these experiments, ? and yield components were measured and their correlations analyzed. Differences among cotton genotypes for ? (p < 0.0001) were verified, and it was found that this variable was significantly correlated with gas exchange. There was a significant positive correlation between ? and seed cotton yield only in the site experiencing severe water deficiency (Santa Helena de Goiás). However, ? had a significant negative correlation with fiber percentage. Our results indicate that ? is a suitable tool for cotton phenotyping, and it may be applied in cotton breeding programs that aim to produce high-performing yield components in unfavorable conditions.
653 $aEstresse abiótico
653 $aFracionamento do carbono
653 $aTroca gasosa
700 1 $aSUASSUNA, N. D.
700 1 $aSILVA, V. N.
700 1 $aSOFIATTI, V.
700 1 $aDIOLA, V.
700 1 $aMORELLO, C. de L.
773 $tActa Scientiarum$gv. 36, n. 3, p. 335-345, jul./set. 2014.
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Registro original: |
Embrapa Clima Temperado (CPACT) |
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