تاثیر شدت‌های مختلف نور بر کارایی مصرف آب محصول کاهو تحت شرایط کنترل شده

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی دکتری آبیاری و زهکشی، گروه مهندسی آبیاری و زهکشی، پردیس ابوریحان دانشگاه تهران

2 دانشیار، گروه مهندسی آبیاری و زهکشی، پردیس ابوریحان دانشگاه تهران.

3 استادیار، گروه باغبانی، پردیس ابوریحان دانشگاه تهران

4 دانشیار، گروه مهندسی آبیاری و زهکشی، پردیس ابوریحان دانشگاه تهران

چکیده

نور یکی از فاکتورهای اصلی تنظیم کننده رشد و نمو گیاهی است. در بین جنبه‌های مختلف نور، شدت نور تأثیر عمده‌ای در تنظیم واکنش‌های گیاهی از جمله روابط آبی گیاه دارد. به‌منظور ارزیابی تاثیر شدت نور بر میزان عملکرد، تبخیر – تعرق، کارایی مصرف آب محصول کاهو آزمایشی در قالب طرح کاملا تصادفی با چهار تیمار و دوازده تکرار در پارک علم و فناوری پردیس ابوریحان دانشگاه تهران انجام شد. از آنجایی که طیف نوری آبی و قرمز طیف‌های اصلی دخیل در رشد و روابط گازی هستند، در آزمایش حاضر با استفاده از ترکیب نور قرمز:آبی با نسبت 70 درصد قرمز و 30 درصد آبی با چهار شدت مختلف شاملmol.m-2.S-1µ (T1) 75، mol.m-2.S-1µ (T2) 150، mol.m-2.S-1µ (T3) 300 وmol.m-2.S-1 µ (T4) 600 انجام شد. صفت‌های مورد مطالعه شامل خصوصیات رشدی مرتبط با کارایی مصرف آب بودند. براساس نتایج بدست آمده بیشترین وزن تر مربوط به شدت نور mol.m-2.S-1µ (T3) 300 و کمترین آن مربوط به شدت نور mol.m-2.S-1µ (T3) 75 به ترتیب برابر با 52/73 و 31/17 گرم بدست آمد. افزایش شدت نور موجب افزایش وزن خشک اندام هوایی و سطح برگ شد. همچنین بیشترین کارایی مصرف آب در تیمار mol.m-2.S-1µ (T4) 600 و کمترین آن در تیمار mol.m-2.S-1µ (T1) 75 مشاهده شد.

کلیدواژه‌ها

عنوان مقاله [English]

Effect of different light intensities on water use efficiency of lettuce under controlled conditions

نویسندگان [English]

  • maryam esmaili 1
  • Mahmoud Mashal 2
  • Sasan Aliniaefard 3
  • Behzad Azadegan 4
1 Ph.D. Candidate, Department of water engineering, Aburaihan campus, university of Tehran
2 Associate Professor, Department of water engineering, Aburaihan campus, university of Tehran
3 Assistant Professor, Department of Horticulture, Aburaihan campus, university of Tehran
4 Associate Professor, Department of water engineering, Aburaihan campus, university of Tehran
چکیده [English]

Light is one of the main factors regulating plant growth and development. Among different aspects of light, light intensity has a great effect on plant responses, such as plant's water relations. Light intensity in greenhouse is lower than normal in winter and excessive light intensity in the summer. The aim of this study was to evaluate the effect of light intensity on performance, evapotranspiration, water use efficiency of lettuce in a completely randomized design with four treatments and twelve replications in the Park of Science and Technology in Aburaihan campus of University of Tehran. Since blue and red spectra are the main wavebands involved in growth and gas relations, the present experiment was done by using spectra composition of red and blue with a ratio of 70 percent red and 30 percent blue with four different intensities including (T1) 75 μmol.m-2.S-1, (T2) 150 μmol.m-2.S-1, (T3) 300 μmol.m-2.S-1 and (T4) 600 μmol.m-2.S-1. The studied traits included growth characteristics associated with water use efficiency. Based on the obtained results, the highest fresh weight was obtained from T3 and the lowest fresh weight was obtained under light intensity T3 with 73.52 and 17.31 respectively. Increased light intensity caused an increase in dry weight and leaf area. Highest growth simulation was observed under T3. Furthermore, the highest and the lowest water use efficiencies were observed in plants that were grown under T4 and T1.

کلیدواژه‌ها [English]

  • Evapotranspiration
  • Greenhouse
  • Light Spectrum
  • Production
  • Stoma

مراجع

  1. فتحعلیان ف، مؤذن­زاده ر و نوری­ امامزاده­ ای م (1388) ارزیابی و برآورد تبخیر- تعرق خیار گلخانه ­ای در مراحل مختلف رشد. علوم آب و خاک. 23(4): 27-16.
  2. رحیمی ­خوب ع، ستوده­نیا ع و مساح ­بوانی ع (1393). واسنجی و ارزیابی مدل AquaCrop برای ذرت علوفه ای منطقه قزوین. آبیاری و زهکشی ایران. 8(1): 115-108.
  3. Aliniaeifard S and van Meeteren U (2016). Stomatal characteristics and desiccation response of leaves of cut chrysanthemum (Chrysanthemum morifolium) flowers grown at high air humidity. Scientia Horticulturae. 205: 84-89.
  4. Bozkurt S and Bozkurt G (2011). the effects of drip line depths and irrigation levels on yield, quality and water use characteristics of lettuce under greenhouse condition. African Biotechnology. 10: 3370-3379.
  5. Centritto M, Loreto F, Massacci A, Pietrini F, Villani MC and Zacchini M (2000). Improved growth and water use efficiency of cherry saplings under reduced light intensity. Ecological Research. 15: 385-392.
  6. Fan X-X, Xu Z-G, Liu X-Y, Tang C-M, Wang L-W and Han X-L (2013) Effects of light intensity on the growth and leaf development of young tomato plants grown under a combination of red and blue light. Scientia Horticulturae. 153: 50-55.
  7. Givnish TJ, Montgomery RA and Goldstein G (2004a) Adaptive radiation of photosynthetic physiology in the Hawaiian lobeliads: light regimes, static light responses, and whole-plant compensation points. American Botany. 91 (2): 228-246.
  8. Hattori T, Sonobe K, Inanaga S, Tsuji W, Araki AEand Morita S (2007) Short term stomatal responses to light intensity changes and osmotic stress in sorghum seedlings raised with and without silicon. Environmental and Experimental Botany. 60 (2): 177-182.
  9. Heo J, Lee C, Chakrabarty D and Paek K (2002) Growth responses of marigold and salvia bedding plants as affected by monochromic or mixture radiation provided by a Light-Emitting Diode (LED). Plant Growth Regulation. 38(3): 225-230.
  10. Hogewoning SW, Trouwborst G, Maljaars H, Poorter H, van Ieperen W and Harbinson J (2010) Blue light dose–responses of leaf photosynthesis, morphology, and chemical composition of Cucumis sativus grown under different combinations of red and blue light. Experimental Botany. 61(11): 3107-3117.
  11. Kang HJ, KrishnaKumar S, Atulba SL, Jeong BR and Hwang SJ (2013) Light intensity and photoperiod influence the growth and development of hydroponically grown leaf lettuce in a closed-type plant factory. Horticulture, Environment and Biotechnology. 54(6): 501-509.
  12. Knight SL and Mitchell CA (1988) Effects of CO2 and photosynthetic photon flux on yield, gas exchange and growth rate of Lactuca sativa ‘Waldmanns Green’. Experimental Botany. 39: 317-328.
  13.  Lawson T, Von Caemmerer S and Baroli I (2010) Photosynthesis and stomatal behaviour. In Progress in Botany. 72: 265-304.
  14.  Lee S-H, Tewari RK, Hahn E-Jand Paek K-Y (2007a) Photon flux density and light quality induce changes in growth, stomatal development, photosynthesis and transpiration of Withania somnifera (L.) Dunal. plantlets. Plant Cell. Tissue and Organ Culture. 90(2): 141-151.
  15.  
  16. Lichtenthaler HK and Rinderle U (2007) The role of chlorophyll fluorescence in the detection of stress conditions in plants. CRC Critical Reviews in Analytical Chemistry. 19: 29-85.
  17.  Lin K-H, Huang M-Y, Huang W-D, Hsu M-H, Yang Z-W and Yang C-M (2013) The effects of red, blue, and white light-emitting diodes on the growth, development, and edible quality of hydroponically grown lettuce (Lactuca sativa L. var. capitata). Scientia Horticulturae. 150: 86-91.
  18.  McNellis TW and Deng X-W (1995) Light control of seedling morphogenetic pattern. The Plant Cell. 7(11): 1749-1761.
  19.  Paiva ÉA, Isaias RM, Vale FHand Queiroz CG (2003) The influence of light intensity on anatomical structure and pigment contents of Tradescantia pallida (Rose) Hunt purpurea Boom (Commelinaceae) leaves. Brazilian Archives of Biology and Technology. 46: 617-624.
  20. Pallardy SGand Kozlowski TT (1979) Stomatal Response of Populus Clones to Light Intensity and Vapor Pressure Deficit. Plant Physiology. 64: 112-114.
  21. Quail PH (2002) Phytochrome photosensory signalling networks. Nature Reviews Molecular Cell Biology. 3(2): 85-93.
  22. Savvides A, Fanourakis D and van Ieperen W (2012) Co-ordination of hydraulic and stomatal  conductances across light qualities in cucumber leaves. Experimental Botany. 63(3): 1135-1143.
  23.  Steduto P, Hsiao TC and Fereres E (2007) On the conservative behavior of biomass water productivity. Irrigation Science. 25: 189-207.
  24. Tibbits TW, Morgan DC and Warrington IJ (1983) Growth of lettuce, spinach, mustard, and wheat plants under four combinations of high-pressure sodium, metal halide, and tungsten halogen lamps at equal PPFD.  Horticulture Science. 108: 622-630.
  25. Wang J, Lu W, Tong Y and Yang Q (2016) Leaf Morphology, Photosynthetic Performance, Chlorophyll Fluorescence, Stomatal Development of Lettuce (Lactuca sativa L.) Exposed to Different Ratios of Red Light to Blue Light. Frontiers in Plant Science, 7, article 250.  
  26. Weiguo F, Pingping L, Yanyou W and Jianjian T (2018) Effects of different light intensities on anti-oxidative enzyme activity, quality and biomass in lettuce. Horticulture Science. 39: 129-134.  
  27. Wu D-X, Wang G-X, Bai, Y-F and Liao J-X (2004) Effects of elevated CO2 concentration on growth, water use, yield and grain quality of wheat under two soil water levels. Agriculture, Ecosystems and Environment. 104: 493-507.
  28. Zavala J and Ravetta D (2001) Allocation of photoassimilates to biomass, resin and carbohydrates in Grindelia chiloensis as affected by light intensity. Field Crops Research. 69(2): 143-149.
مدیریت آب و آبیاری
دوره 9، شماره 1
شهریور 1398
صفحه 43-53

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