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Leaf Growth Analysis of Cool Season Cereals Wheat, Rye, Barley, and Oats under Different NPK Sources

Author

Listed:
  • Amanullah

    (Department of Agronomy, Faculty of Crop Production Sciences, The University of Agriculture Peshawar-Pakistan)

  • Bob A Stewart

    (Dryland Agriculture Institute, WTAMU, USA)

  • Lal K Almas

    (Paul Engler College of Agriculture and Natural Sciences, West Texas A&M University, USA)

Abstract

Plant growth analysis is generally expressed as indexes of growth such as crop growth rate, relative growth rate, net assimilation rate, leaf area ratio, and leaf area index that provide the first clue toward an understanding of variation in growth rates among genotypes or species. The objective of this research was to investigate leaf growth analysis viz. Mean Single Leaf Area (MSLA), Leaf Area Plant-1 (LAPP), Leaf Area Ratio (LAR) and Leaf Area Index (LAI) of four winter cereals [wheat (Triticum aestivum L.), rye (Secale cereale L.), barley (Hordeum vulgare L.) and oats (Avena sativa L.)] at different growth stages and NPK source. Different leaf parameters were investigated at one month interval [30, 60 and 90 Days After Emergence (DAE)] under eight NPK sources (S1 = 20-20-20, S2= 20-27-5, S3 = 7-22-8, S4 = 10-10-10-20S, S5 = 11-15-11, S6 = 31-11-11, S7 = 24-8-16, and S8 = 19-6-12). The experiment was conducted in pots at the green house of the Dryland Agriculture Institute, West Texas A&M University, Canyon (Texas), USA during winter 2009-2010.

Suggested Citation

  • Amanullah & Bob A Stewart & Lal K Almas, 2018. "Leaf Growth Analysis of Cool Season Cereals Wheat, Rye, Barley, and Oats under Different NPK Sources," International Journal of Environmental Sciences & Natural Resources, Juniper Publishers Inc., vol. 11(5), pages 01-10, May.
    • Handle: RePEc:adp:ijesnr:v:11:y:2018:i:4:p:01-10
    DOI: 10.19080/IJESNR.2018.11.555822
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    Keywords

    earth and environment journals; environment journals; open access environment journals; peer reviewed environmental journals; open access; juniper publishers; ournal of Environmental Sciences; juniper publishers journals ; juniper publishers reivew;
    All these keywords.

    JEL classification:

    • R00 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - General - - - General
    • Z0 - Other Special Topics - - General

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