IDEAS home Printed from https://ideas.repec.org/a/eee/agiwat/v255y2021ics0378377421003000.html
   My bibliography  Save this article

Biomass yield, dry matter partitioning and physiology of commercial and Erianthus introgressed sugarcane clones under contrasting water regimes

Author

Listed:
  • Mohanraj, K.
  • Hemaprabha, G.
  • Vasantha, S.

Abstract

The productivity of sugarcane is limited by several biotic and abiotic stresses, of which drought is an important environmental stress, causing substantial yield losses especially in tropical parts of the world. The present day sugarcane cultivars are derivatives of interspecific hybrids involving Saccharum officinarum and S. spontaneum and the drought tolerance is governed by S. sponaneum. Of late considerable attention has been given to utilize Erianthus Spp, the related wild genera of Saccharum, shows remarkable levels of drought tolerance under water limited condition. In this study, experiments were conducted to compare the influence of drought on biomass, yield and physiology of commercial and Erianthus introgressed clones. The results showed that the cane yield was reduced 37.98% in commercial clones compared to 24.67% in Erianthus introgressed clones under drought. The highest stress tolerance index (STI) of 1.256 was recorded in the clone CYM 08–922 which is a backcross hybrid involving Erianthus arundinaceus. Significant differences were observed for leaf area index, relative water content, lipid peroxidation and epicuticular wax content among the genotypes and between treatments. Sugar yield was most affected by drought (38.86%) followed by cane yield (33.30%), NMC (26.79%) and single cane weight (22.49%). Cane yield showed a positive and significant correlation with dry biomass under both irrigated (r = 0.303) and drought situations (r = 0.404) and among the physiological parameters, only RWC showed significant and positive correlation with cane yield (r = 0.307). The leaf dry matter was 14.55% higher under drought indicating influence of drought on translocation of dry matter from leaves to canes. Among clones CoM 0265, Co 06022, CYM 08-922, CYM 09-1369 and GU 12-31 showed greater ability to partition dry matter in to canes under drought than the other clones and had higher stress tolerant index. Cane height, number of millable stalks and RWC% showed positive and significant association with cane yield under both drought and irrigated condition and could be important parameters in screening clones under sugarcane improvement programmes.

Suggested Citation

  • Mohanraj, K. & Hemaprabha, G. & Vasantha, S., 2021. "Biomass yield, dry matter partitioning and physiology of commercial and Erianthus introgressed sugarcane clones under contrasting water regimes," Agricultural Water Management, Elsevier, vol. 255(C).
    • Handle: RePEc:eee:agiwat:v:255:y:2021:i:c:s0378377421003000
    DOI: 10.1016/j.agwat.2021.107035
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0378377421003000
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.agwat.2021.107035?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:agiwat:v:255:y:2021:i:c:s0378377421003000. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.elsevier.com/locate/agwat .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.