Evaluation of some sugarcane genotypes for yield and quality traits at the first clonal selection stage.

Abstract: Thirty sugarcane clones that were selected from six bi-parental
crosses (families) along with two check cultivars (GT54-9 and Ph8013)
were planted in randomized complete block design trial with three
replications and evaluated for yield and quality traits in plant cane (PC)
and first ratoon crop (FR) at the first clonal selection stage, in addition to
, estimate broad–sense heritability and genetic variance components
under Upper Egypt Conditions at Shandweel Agricultural Research
Station, Sohag Governorate, Egypt during 2013 and 2014 harvesting
seasons.
Results indicated significant differences among evaluated
clones for stalk length , stalk diameter , stalk weight , number of stalks
/fed ,cane yield , Brix%, ,sucrose %, purity%, sugar recovery% and sugar
yield in plant cane , first ratoon and across crops. Across plant cane
and first ratoon the clones, G2009 - 30 (67.17 ton/fed), G2009-
7(64.41 ton/fed), G2009-10(63.49 ton/fed) and G2009-18 (62.41
ton/fed), respectively, surpassed the two check cultivars for cane
yield, while, the highest sugar yield was recorded with clones, G2009-
10(9.02 ton/fed), G2009-27(8.25 ton/fed), G2009- 2(8.25 ton/fed),
and G2009-21(8.17 ton/fed), respectively. Genotypic variance,
heritability, phenotypic and genotypic coefficient of variation decreased
from plant cane to first ratoon for the traits , stalk diameter , ,cane yield
and Brix%, while, they increased slightly for number of stalks /fed andEgypt. J. of Appl. Sci., 29(12B): 709- 730 (2014)
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purity%. The significant genotypic effects indicated existence of genetic
variability among the genotypes and the possibility of genetic
improvement in most studied traits through selection.
Key words: Sugar cane (Saccharum spp), Plant cane, Ratoon crops, Clones,
Genetic variance, Heritability.
INTRODUCTIO
Publication year 2014
Pages 709-730
Organization Name
City القاهرة
Author(s) from ARC
Publication Type Journal
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