EVALUATION OF SOME PROMISING SUGARCANE GENOTYPES FOR RATOONING ABILITY

Document Type : Research articles.

Author

Variety Maintenance Dept, Sugar Crops Res. Inst, ARC, Giza, Egypt

Abstract

A field experiment was conducted during 2008-2012 in
Shandweel Research Station, Sohag Governorate (latitude of 26°.55
N & longitude of 31°.7 E) to study the ratooning ability of five
promising sugarcane varieties, viz. G.84-47, G.2003-47, G.2003-49,
G.98-28, G.99-160 compared to the commercial G.T.54-9 variety.
The tested varieties were arranged in a randomized complete block
design in three replications. The evaluated genotypes were assessed
for their regeneration capacity based on number of stalks/m
2, stalk
diameter, sucrose, cane and sugar yields up to 2
nd ratoon.
The tested genotypes significantly differed in sucrose content,
cane and sugar yields. Among the studied genotypes, G.2003-47,
consistently maintained the highest cane yield/fed, while the
commercial variety produced the highest sugar yield as compared to
the other genotypes up to the 2
nd ratoon crop.
It was found that G.2003-47 genotypes possesses better
multiratooning ability with high cane and sugar yields and could be
exploited successfully beside the commercial variety G.T.54-9.


Keywords