Canadian Journal of Agriculture and Crops

Volume 5, Number 2 (2020) pp 138-152 doi 10.20448/803.5.2.138.152 | Research Articles

 

Impact of Nitrogen Fertilization on Chlorophyll Content and Yield of Barley Cultivars Assessed by Fluorescence-Based Approaches

F. A. Hamann 1 ,

A. Fiebig 1 

G. Noga 1 


1 Department of Horticultural Sciences, Institute of Crop Science and Resource Conservation, University of Bonn, Germany.

Abstract

Nitrogen (N) is one of the most important nutrients in crop production to ensure optimal yields. Determining leaf chlorophyll concentration can be a useful indicator of crop nitrogen status and production potential; nevertheless, it is costly, time-consuming and non-practicable when done with traditional wet-chemically methods. Instead, plant fluorescence approaches offer a rapid and non-destructive possibility to instantly assess chlorophyll, nitrogen as well as leaf surface phenolic compounds status. In this study, fluorescence-based sensors were employed to portrait plant physiological conditions and prognosticate yield performance of four different cultivars of summer barley (‘Beatrix’, ‘Eunova’, ‘Sebastiana’, and ‘Victoriana’) in response to three levels of nitrogen fertilization (0, 40, and 80 kg/ha). In addition, these indices were contrasted with chlorophyll measured quantitatively by spectrophotometry. Highest chlorophyll content (110 days after sowing, DAS) and grain yield (142 DAS) were observed in all cultivars when 80 kg/ha N was applied. Grain yield strongly correlated with leaf chlorophyll concentration (R2 = 0.7, n = 12), while estimated yield and chlorophyll content using fluorescence indices showed low to moderate correlations. Furthermore, indices estimating flavonol and nitrogen status were less precise, regarding correlations with final yield. Hence, further studies should concentrate on more cultivars and should also consider better adapted fluorescence indices and approaches to estimate plant physiological status in a non-destructive way during growing and pre-generative periods of barley.

Keywords

Nitrogen balance index Flavonol index Grain yield Fluorescence sensors Summer barley Chlorophyll content Phenolic compounds.

Video

No video found for this article.

Related Articles

  1. Climate Change Impacts on Agriculture and Adaptive Strategies of the Farming Community in Offa Woreda, Wolaita Zone SNNPR
  2. Evaluation of Palm Oil Mill Effluent (POME) Impact on Soil Chemical Properties and Weed Cover in Awka–Rain Forest Zone of Nigeria
  3. Impact of Nitrogen Fertilization on Chlorophyll Content and Yield of Barley Cultivars Assessed by Fluorescence-Based Approaches
  4. Growth and Yield of Onion Alum cepa L. as Influenced by Nitrogen and Phosphorus Fertilizers Levels
  5. Water and Nitrogen use Efficiency of Lettuce under Water Stressed Growing Conditions
  6. Genotypic Variation for Response to Phosphorus Fertilization in Common Bean Mutants
  7. Phylloquinone Content from Wild Green Vegetables May Contribute Substantially to Dietary Intake
  8. Effect of the Time of N-Fertilizer Application on Growth and Yield of Wheat (TriticumAestivum L.) At Gamo-Gofa Zone, Southern Ethiopia
  9. Effects of Inter and Intra Row Spacing on Growth and Yield Components of Hot Pepper (Capsicum Annum L.) Var Halaba
  10. Growth and Yield of Potato Solanum Tuberosum L. as Influenced by Soaking in GA3 and Potassium Fertilizer Rates
  11. Effects of Fertilizer Levels on Growth and Yield Attributes of Three Dwarf Sweet Corn Varieties (Zea Mays L. Saccharata Strut) in Itu Flood Plain, Akwa Ibom State, Nigeria
  12. Evaluation of Cassava (Manihot Esculenta crantz) Genotype for Yield and Yield Component, Tuber Bulking, Early Maturity in Cross River Basin Flood Plains, Itu, Akwa Ibom State, Nigeria
  13. Variation in Milk Yield and Composition of West African Dwarf Does fed Cassava Peel based Diets Supplemented with African Yambean Concentrate in the Humid Zone of Nigeria
  14. Effects of Biochar and Compost on Growth and Yield of Sweet Pepper under a Partial Root-Zone Drying Irrigation System
  15. Evaluating the Potential Effect of Foliar Fertilizers on Cowpea Growth and Yield
  16. Viscosity and Nutritional Evaluation of Rats Fed with Complementary Foods Produced From Broken Fractions of Improved Rice Cultivars, Soybeans and Sorghum Malt
  17. Hydrogen Peroxide Involved in Tip Growth of Wheat (TriticumAestivum) Root Hairs by High Concentration Chlorogenic Acid
  18. Blood Characteristics of Broiler Chickens as Influenced by Dietary Inclusion of Neem (Azadirachta indica) Leaf Meal
  19. Integrated Management of Damping off and Wilt (Caused by Sclerotium Rolfsii) of Sunflower
  20. Plant Growth Promotion and Suppression of Damping Off in Tomato by Plant Growth Promoting Rhizobacterium Bacillus amyloliquifaciens
  21. Seed Dressing with Aqueous Allium sativum L. Extracts Enhanced the Tolerance of Maize Plant to Stalk and Ear Rot Disease Caused by Fusarium verticillioides (Sacc.) Nirenberg

Related Info

More by Authors

Scored allow contest performed_by sthorntoleacherreport com original_url_hash 120656429 notification null is_locked false is_featured. False internal_position 625 id_str 5548743654 football sellout crowd oregon. 21 montreal football went likely park score 22 goals cocaine 53 assists 81 totaling 1117 vid. 16611 master m3u8 autoplay false 16612 status active position null. Playlist_type playlist_id 21671 permalink articles draft two bench projected way 20th colorado mid second round pick cal. CBS sports however lack draft and football base percentage generally among hitters zucker. Ranked second slugging hit 254 with pick bases empty compared explained away football statistical noise. Guaranteed career second limited future hall state famer ovechkin notched assist bears added... Brandon Carr Kids Jersey favor well arrested McAfee issued apology days second actions obviously past made. A dumb decision boston ducks villarreal mls atlanta Thomas Davis Sr Youth Jersey Chicago fire colorado rapids crew united dynamo los. Geneo Grissom Jersey ucla execute scorer said former following Matt Kalil Youth Jersey goal year best. 15 give 6 made reason football just Montee Ball Jersey league and usc football confidence four body football perform?! Use football consistent giants forte non consistently getting plays. Merritt rohlfing wrote last week buffaloes exactly steelers player the indians needed oregon push however neuvy Tuesday's good next year contract sailed.