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Physiological approaches for Drought tolerance in sugarcane (Saccharum officinarum L.)

KrishiKosh

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Title Physiological approaches for Drought tolerance in sugarcane (Saccharum officinarum L.)
 
Creator R.P.Patil
 
Contributor M.B.Chetti
 
Subject Crop Physiology
 
Description Field experiments were conducted at Research and Development Farm of the Ugar
Sugar Works Ltd., Ugarkhurd (Belgaum District), Karnataka during 2004-05 and 2005-06 to
study the influence of different agro-chemicals on various morpho-physiological,
biochemical and yield and yield components in sugarcane under moisture stress conditions.
The experiments were laid out in randomized block design with 13 treatments and three
replications.
The morphological parameters, viz., plant height, length and girth of internodes were
significantly higher with the soil application of K2O (75 kg/ha) followed by foliar spray of
KCl (3%) and foliar spray of KCl (3%) + urea (3%) compared to control. Significantly higher
number of tillers per hill were observed with the foliar spray of methanol (2%) compared to
all other treatments.
Among various biochemical parameters, chlorophyll ‘a’, chlorophyll ‘b’ and total
chlorophyll contents were found to be significantly higher with the soil application of K2O
(75 kg/ha) followed by foliar spray of PMA (20 ppm) and foliar spray of methanol (2%)
compared to moisture stress treatments. Whereas, praline content was significantly higher in
water stress treatments compared to all other treatments. While, the NRA was found to be
significantly lower in water stress treatment compared to other treatments.
Among various growth parameters, LAI was found to be significantly higher in the
foliar spray of PMA (20 ppm) compared to all other treatments. Whereas, LAD, SLW, AGR
were found to be maximum in normal irrigation compared to all other stress treatments.
Net millable canes were found significantly higher in foliar spray of methanol (2%)
followed by soil application of K2O (75 kg/ha) and foliar spray of KCl (3%) + urea (3%)
compared to control (water stress). Sugar production (t/ha) was significantly higher with the
soil application of K2O (75 kg/ha) compared to all other treatments.
 
Date 2016-07-22T16:00:00Z
2016-07-22T16:00:00Z
2008
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/69425
 
Format application/pdf
 
Publisher UAS Dharwad