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Effect of exogenous application of micronutrients on growth and productivity of cotton (Gossypium hirsutum L. ) crop / Efeito da aplicação exógena de micronutrientes no crescimento e produtividade da cultura de algodão (Gossypium hirsutum L. )
Ajmal, Fahad; Akram, Muhammad; Iqbal, Rana Muhammad; Hussain, Mubshar; Hassan, Muhammad Waqar; Abdullah, Muhammad; Wasaya, Allah.
  • Ajmal, Fahad; The Islamia University of Bahawalpur. Bahawalpur. PK
  • Akram, Muhammad; COMSATS Institute of Information Technology. Vehari. PK
  • Iqbal, Rana Muhammad; The Islamia University of Bahawalpur. Bahawalpur. PK
  • Hussain, Mubshar; Bahauddin Zakariya University. Multan. PK
  • Hassan, Muhammad Waqar; The Islamia University of Bahawalpur. Bahawalpur. PK
  • Abdullah, Muhammad; The Islamia University of Bahawalpur. Bahawalpur. PK
  • Wasaya, Allah; Bahauddin Zakariya University. Multan. PK
Biosci. j. (Online) ; 34(2): 302-311, mar./apr. 2018. tab
Article in English | LILACS | ID: biblio-966640
ABSTRACT
Micronutrients play a vital role in the growth and productivity of cotton crop. A study was carried out to access the exogenous application of micronutrients on growth and yield of cotton crop. The experiment was comprised of nine treatments as T0 (control), T1 (Fe chelated), T2 (B), T3 (Mo), T4 (CuSo4 + ZnSo4 + MnSo4), T5 (CuSo4 + ZnSo4 + MnSo4 + Fe chelated), T6 (CuSo4 + ZnSo4 + MnSo4 + B), T7 (CuSo4 + ZnSo4 + MnSo4 + Mo) and T8 (CuSo4 + ZnSo4 + MnSo4 + Fe chelated + B). Data on different growth attributes showed that there was significant positive increase with the application of micronutrients. Leaf area was increased after applying micronutrients at 99 days after sowing (DAS) and then a decreasing trend was observed. Chlorophyll contents were increased at 81 DAS and then decreased towards the final harvest. Similarly, different yield components showed that seed cotton yield were significantly increased with the application of Fe, B, Mo, Zn, Cu and Mn compared to control treatment. Earliness index, mean maturity date and production rate index were increased significantly after combined use of foliar spray of Zn, Cu, Mn and Mo.
RESUMO
Os micronutrientes desempenham um papel vital no crescimento e produtividade da cultura do algodão. Um estudo foi realizado para acessar a aplicação exógena de micronutrientes no crescimento e produção de cultura de algodão. O experimento foi composto de nove tratamentos como T0 (controle), T1 (Fe quelatado), T2 (B), T3 (Mo), T4 (CuSo4 + ZnSo4 + MnSo4), T5 (CuSo4 + ZnSo4 + MnSo4 + Fe quelatado) T6 (CuSo4 + ZnSo4 + MnSo4 + B), T7 (CuSo4 + ZnSo4 + MnSo4 + Mo) e T8 (CuSo4 + ZnSo4 + MnSo4 + Fe quelados + B). Dados sobre diferentes atributos de crescimento mostraram aumento significativo positivo com a aplicação de micronutrientes. A área foliar foi aumentada após aplicação de micronutrientes aos 99 dias após a semeadura (DAS), observando - se, então, uma tendência decrescente. Os teores de clorofila foram aumentados em 81 DAS e depois diminuíram para a colheita final. De forma semelhante, diferentes componentes de rendimento mostraram que o rendimento de algodão de sementes aumentou significativamente com a aplicação de Fe, B, Mo, Zn, Cu e Mn em comparação com o tratamento de controlo. O índice de precocidade, a data média de maturidade eo índice de taxa de produção aumentaram significativamente após o uso combinado de pulverização foliar de Zn, Cu, Mn e Mo.
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Full text: Available Index: LILACS (Americas) Main subject: Plant Growth Regulators / Micronutrients / Gossypium / Crop Production Language: English Journal: Biosci. j. (Online) Journal subject: Agricultura / Disciplinas das Ciˆncias Biol¢gicas / Pesquisa Interdisciplinar Year: 2018 Type: Article Affiliation country: Pakistan Institution/Affiliation country: Bahauddin Zakariya University/PK / COMSATS Institute of Information Technology/PK / The Islamia University of Bahawalpur/PK

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Full text: Available Index: LILACS (Americas) Main subject: Plant Growth Regulators / Micronutrients / Gossypium / Crop Production Language: English Journal: Biosci. j. (Online) Journal subject: Agricultura / Disciplinas das Ciˆncias Biol¢gicas / Pesquisa Interdisciplinar Year: 2018 Type: Article Affiliation country: Pakistan Institution/Affiliation country: Bahauddin Zakariya University/PK / COMSATS Institute of Information Technology/PK / The Islamia University of Bahawalpur/PK