Effect of Exogenous Application of Ascorbic Acid (Vitamin C) On Proline Accumulation, Productivity and Quality of Sugarcane under Salt Stress
Author(s)
R.Anitha , P.Christy Nirmala Mary , M. Shanmuganthan , G.Gayathry ,
Download Full PDF Pages: 147-155 | Views: 385 | Downloads: 103 | DOI: 10.5281/zenodo.5141678
Abstract
The field study was carried out at Sugarcane Research Station, Tamil Nadu Agricultural University, Cuddalore by using the sugarcane variety CoC 25 during the period of 2015-2018. This study was conducted to determine the sett treatment and a foliar spray of ascorbic acid on physiology, yield and quality parameters of sugarcane under saline water irrigated condition in two plant crops and one ratoon crop. Results of pooled mean data of two plant crops and ratoon crop showed that sett treatment of ascorbic acid with 0.2g/l + foliar spray of ascorbic acid with 0.2g/l at 45th days after planting showed maximum germination of 83% and 85% , tiller population of 1,42,480/ha and 1,45,060/ha, millable cane of 1,29,880/ha and 1,31,180/ha, leaf area of 727.90 cm2 and 737.15 cm2, leaf area index of 3.85 and 3.88 , total chlorophyll of 2.273 mg/g and 2.265 mg/g, proline content of 325 µg/g and 320 µg/g, cane length of 202.42 cm and 204.20 cm, cane girth of 2.70cm and 2.72cm in plant and ratoon crop respectively. The same treatment significantly registered the maximum cane yield of 124.60 t/ha and 125.71 t/ha and sugar yield of 14.04 t/ha and 14.12 t/ha, CCS% of 11.32 % and 11.36%, net income of Rs.1,73,850 and Rs.1,76,635 and B: C ratio of 1.96 and 1.98 both in plant and ratoon crop respectively.
Keywords
Sugarcane, ascorbic acid, proline, salinity, physiology, quality
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