scholarly journals Cultivar Evaluation and Essential Test Locations Identification for Sugarcane Breeding in China

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Jun Luo ◽  
Yong-Bao Pan ◽  
Liping Xu ◽  
Hua Zhang ◽  
Zhaonian Yuan ◽  
...  
Keyword(s):  
Sugar Content ◽  
Sugar Yield ◽  
The Other ◽  
Cane Yield ◽  
Environment Interaction ◽  
Discrimination Ability ◽  
Sugarcane Breeding ◽  
High Sugar ◽  
Genotype Environment Interaction ◽  
Poor Stability

The discrepancies across test sites and years, along with the interaction between cultivar and environment, make it difficult to accurately evaluate the differences of the sugarcane cultivars. Using a genotype main effect plus genotype-environment interaction (GGE) Biplot software, the yield performance data of seven sugarcane cultivars in the 8th Chinese National Sugarcane Regional Tests were analyzed to identify cultivars recommended for commercial release. Fn38 produced a high and stable sugar yield. Gn02-70 had the lowest cane yield with high stability. Yz06-407 was a high cane yield cultivar with poor stability in sugar yield. Yz05-51 and Lc03-1137 had an unstable cane yield but relatively high sugar yield. Fn39 produced stable high sugar yield with low and unstable cane production. Significantly different sugar and cane yields were observed across seasons due to strong cultivar-environment interactions. Three areas, Guangxi Chongzuo, Guangxi Baise, and Guangxi Hechi, showed better representativeness of cane yield and sugar content than the other four areas. On the other hand, the areas Guangxi Chongzuo, Yunnan Lincang, and Yunnan Baoshan showed strong discrimination ability, while the areas Guangxi Hechi and Guangxi Liuzhou showed poor discrimination ability. This study provides a reference for cultivar evaluation and essential test locations identification for sugarcane breeding in China.

scholarly journals Stability Analysis of Genotype × Environment Interaction Effect on Sugar Yield in Sugar Beet Hybrids

2019 ◽  
Vol 11 (32) ◽  
pp. 33-40
Author(s):  
Parviz Fasahat ◽  
Samar Khayamim ◽  
Jamshid Soltani Idliki ◽  
Saeed Darabi ◽  
Adel Pedram ◽  
...  
Keyword(s):  
Stability Analysis ◽  
Sugar Beet ◽  
Interaction Effect ◽  
Sugar Yield ◽  
Environment Interaction ◽  
Genotype Environment Interaction ◽  
Environment Interaction Effect

Early stage selection for commercial cane sugar (CCS) in sugarcane clones: effects of time of sampling and irrigation

2003 ◽  
Vol 54 (4) ◽  
pp. 389 ◽  
Author(s):  
Phillip A. Jackson ◽  
Terry E. Morgan
Keyword(s):  
Field Experiments ◽  
Clonal Selection ◽  
Early Stage ◽  
Sugar Content ◽  
Selection Criterion ◽  
Cane Yield ◽  
Physiological Basis ◽  
Breeding Programs ◽  
Sugarcane Breeding ◽  
Selection For

Commercially recoverable sugar content in sugarcane (CCS, expressed as a percentage) is a key selection criterion in sugarcane breeding programs. In some sugarcane breeding programs there may be significant operational advantages in measuring CCS early in the crop growth cycle, well before commercial harvesting would normally commence, and in restricting growth by withholding irrigation to reduce cane yield and lodging. Two field experiments were conducted to investigate these effects. The experiments included clones representative of genotypes routinely assessed in the earliest stages of clonal selection in breeding programs. Differences among genotypes for CCS were expressed early when cane had very low CCS (in February or March), and then rates of increase in CCS following that time were similar in most genotypes. Therefore, time of sampling had little effect on ranking of genotypes for CCS, and selection for high CCS could be effective early in the year. Irrigation regime also had little effect on ranking of the clones for CCS, indicating that mild water stress could be imposed with no adverse effect on selection results. The results are discussed in relation to optimising selection procedures and systems in early stage selection trials in sugarcane breeding programs, and better understanding the physiological basis of genetic variation in CCS.

Simultaneously accounting for population structure, genotype by environment interaction, and spatial variation in marker–trait associations in sugarcaneThis article is one of a selection of papers from the conference “Exploiting Genome-wide Association in Oilseed Brassicas: a model for genetic improvement of major OECD crops for sustainable farming”.

Genome ◽  
2010 ◽  
Vol 53 (11) ◽  
pp. 973-981 ◽  
Author(s):  
Xianming Wei ◽  
Phillip A. Jackson ◽  
Scott Hermann ◽  
Andrzej Kilian ◽  
Katarzyna Heller-Uszynska ◽  
...  
Keyword(s):  
Population Structure ◽  
Association Mapping ◽  
Spatial Variation ◽  
Sugar Content ◽  
Genotype By Environment Interaction ◽  
Cane Yield ◽  
Type I ◽  
Environment Interaction ◽  
Genotype By Environment ◽  
The Impact

Few association mapping studies have simultaneously accounted for population structure, genotype by environment interaction (GEI), and spatial variation. In this sugarcane association mapping study we tested models accounting for these factors and identified the impact that each model component had on the list of markers declared as being significantly associated with traits. About 480 genotypes were evaluated for cane yield and sugar content at three sites and scored with DArT markers. A mixed model was applied in analysis of the data to simultaneously account for the impacts of population structure, GEI, and spatial variation within a trial. Two forms of the DArT marker data were used in the analysis: the standard discrete data (0, 1) and a continuous DArT score, which is related to the marker dosage. A large number of markers were significantly associated with cane yield and sugar content. However, failure to account for population structure, GEI, and (or) spatial variation produced both type I and type II errors, which on the one hand substantially inflated the number of significant markers identified (especially true for failing to account for GEI) and on the other hand resulted in failure to detect markers that could be associated with cane yield or sugar content (especially when failing to account for population structure). We concluded that association mapping based on trials from one site or analysis that failed to account for GEI would produce many trial-specific associated markers that would have low value in breeding programs.

scholarly journals Evaluasi Klon-Klon Tebu Potensial di Lahan Kering

2019 ◽  
Vol 46 (3) ◽  
pp. 328-336 ◽  
Author(s):  
Djumali , ◽  
Bambang Heliyanto ◽  
Dan Ahmad Dhiaul Khuluq
Keyword(s):  
Block Design ◽  
Sugar Content ◽  
Sugar Yield ◽  
Germplasm Evaluation ◽  
Sugarcane Production ◽  
Experimental Station ◽  
High Sugar ◽  
Randomized Block Design

The candidates for new superior varieties are  expected to be able to increase the sugar yield in the upland area. Germplasm evaluation has indicated some clones had potentially high sugar yield in upland area. The study was conducted at Asembagus Experimental Station, Situbondo Regency, East Java, from December 2016 to November 2017. The study aimed to obtain sugarcane clones with higher sugar yield than existing varieties on upland area. Twelve potential sugarcane clones (17, 87, 90, 104, 212, 351, 354, 451, 452, PBG 2, 386 SOF 1118, and 400 SOF 1132) and 2 check varieties (PS 881 and Cenning) were arranged in a randomized block design with three replicates. The results showed that the sugarcane production of 104, 212, and PBG 2 clones  (97.42-98.26 ton ha-1) were not different from productivity of Cenning (105.42 ton ha-1) but they were higher than that of PS 881 (75.68 ton ha-1). The sugar content  of 104 and PBG 2 clones (9.43-9.46%) was higher than Cenning (6.94%) but lower than PS 881 (11.66%). The sugar yields (9.16-9.24 ton ha-1) of 104 and PBG 2 clones were higher than Cenning (7.47 ton ha-1) but they were not different from PS 881 (8.84 ton ha-1).

scholarly journals Integrated selection criteria in sugarcane breeding programs using discriminant function analysis

2020 ◽  
Vol 44 (1) ◽  
Author(s):  
Farrag F. B. Abu-Ellail ◽  
Eman M. A. Hussein ◽  
A. El-Bakry
Keyword(s):  
Discriminant Function ◽  
Discriminant Function Analysis ◽  
Agricultural Research ◽  
Function Analysis ◽  
Sugar Yield ◽  
Cane Yield ◽  
Research Station ◽  
Discriminant Score ◽  
High Sugar ◽  
Stalk Weight

Abstract Background Selection indices help the plant breeders to discriminate desirable genotypes on the basis of phenotypic performance. Therefore, the present study was conducted to evaluate thirty sugarcane genotypes (clones) along with two check cultivars in two cropping seasons at Mattana Agricultural Research Station. Results The results showed the studied traits observed in all genotypes were significantly different. The results could significantly discriminate between low and high sugar yield genotypes by describing eleven traits including sugar yield (ton/fed), cane yield (ton/fed), number of stalk/m2, stalk weight (kg), stalk height (cm), stalk diameter (cm), number of internodes, Brix %, sucrose %, purity %, and sugar recovery %. High sugar yield genotypes were selected by discriminant analysis. The discriminant score (DS) could explain 79.2% of sugar yield variations and had a significant canonical correlation (0.89**). Results of discriminant function analysis (DFA) indicated that the most important traits, in order of appearance, are stalk weight, stalk height, purity %, Brix%, and cane yields. Conclusions Genotypes, G.2017-43, G.2017-42, G.2017-29, G.2017-33, and G.2017-44, showed the highest values of the discriminant score and were recognized as the highest yielder sugarcane genotypes. While the genotypes named Vis, G.2017-30, G.2017-10, G.2017-27, G.2017-25, G.2017-70, G.2017-41, G.2017-40, G.2017-35, and G.2017-58, recognized as the lowest yielder sugarcane genotypes which represent the lowest values of the discriminant score.

scholarly journals Delineation of genotype × environment interaction for identification of stable genotypes for tillering phase drought stress tolerance in sugarcane

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
C. Mahadevaiah ◽  
Prakash Hapase ◽  
V. Sreenivasa ◽  
Ramesh Hapase ◽  
H. K. Mahadeva Swamy ◽  
...  
Keyword(s):  
Drought Stress ◽  
Principal Component ◽  
Stability Index ◽  
Biomass Accumulation ◽  
Moisture Stress ◽  
High Yield ◽  
Cane Yield ◽  
Environment Interaction ◽  
Sugarcane Varieties ◽  
Genotype Environment Interaction

AbstractSugarcane is a trans-seasonal long-duration crop and tillering phase (60–150 days) is the most sensitive phase for moisture stress, causing significant reduction in biomass accumulation. The study focussed to assess the Genotype × Environment Interaction (GEI) for tillering phase moisture stress and to identify the stable genotypes in sugarcane. The study dealt with 14 drought tolerant genotypes and two standards (Co 86032 and CoM 0265) which were evaluated in two plant and one ratoon trials at four locations in Maharashtra, India. The moisture stress was imposed for 60 days from 90 to 150 days after planting and corresponded to tillering phase by withholding the irrigation. The AMMI ANOVA showed significant GEI for cane and CCS yield accounting 18.33 and 19.45 percent of variability respectively. Drought and genotype main effects were highly significant accounting 49.08 and 32.59 percent variability for cane yield and, 52.45 and 28.10 percent variability for CCS yield respectively. The first two interactive principal component (IPCA) biplots of AMMI showed diverse nature of all four environments and the Discriminative vs Mean biplots of Genotype + genotype × environment interaction (GGE) model showed that ‘Pune’ as the highly discriminating environment. The genotype ranking biplots of GGE showed that Co 85019 was the most stable genotype followed by Co 98017. Similar results were also observed in Yield vs IPCA1 biplot of AMMI, which revealed Co 85019 and Co 98017 as high yielding stable varieties. Yield related environmental maximum (YREM) showed thirteen and nine percent loss due to crossover interactions in Co 85019 for cane yield and CCS yield respectively. The multi-environment BLUP and genotype stability index (GSI) has reaffirmed that Co 85019 as a drought proof and stable genotype with high yield under tillering phase drought stress. The results suggested using Co 85019 for cultivation in drought prone regions and the usefulness of the methodology for identifying more such sugarcane varieties for the benefit of resource poor famers in drought affected regions.

scholarly journals Assessment of Stability and Adaptation Patterns of White Sugar Yield from Sugar Beet Cultivars in Temperate Climate Environments

Agronomy ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 405 ◽  
Author(s):  
Marcin Studnicki ◽  
Tomasz Lenartowicz ◽  
Kinga Noras ◽  
Elżbieta Wójcik-Gront ◽  
Zdzisław Wyszyński
Keyword(s):  
Sugar Beet ◽  
Rank Correlation ◽  
Sugar Yield ◽  
Temperate Climate ◽  
Environment Interaction ◽  
Growing Seasons ◽  
Genotype Environment Interaction ◽  
Yield Quality ◽  
The Stability ◽  
White Sugar

The yield and yield quality of sugar from the sugar beet (Beta vulgaris L.) and are determined by genotype, environment and crop management. This study was aimed at analyzing the stability of white sugar yield and the adaptation of cultivars based on 36 modern sugar beet cultivars under different environmental conditions. The compatibility of sugar beet cultivars’ rankings between the three growing seasons and between the 11 examined locations was assessed. In addition, an attempt was made to group environments to create mega-environments. From among the 11 examined locations, four mega-environments were distinguished on the basis of the compatibility of the white sugar yield rankings. The assessment of the adaptation of cultivars and the determination of mega-environments was carried out using GGE (genotype main effects plus genotype environment interaction effects) biplots and confirmed by the Spearman rank correlation test performed for cultivars between locations. The cultivars studied were characterized by a high stability of white sugar yield in the considered growing seasons. The high compliance of the sugar yield rankings between the years contributes to a more effective recommendation of cultivars.

Lodging reduces sucrose accumulation of sugarcane in the wet and dry tropics

2002 ◽  
Vol 53 (11) ◽  
pp. 1183 ◽  
Author(s):  
G. Singh ◽  
S. C. Chapman ◽  
P. A. Jackson ◽  
R. J. Lawn
Keyword(s):  
Sugar Content ◽  
Biomass Accumulation ◽  
Cane Sugar ◽  
Sugar Yield ◽  
Cane Yield ◽  
High Radiation ◽  
Dry Tropics ◽  
Rate Of Increase ◽  
Wet Tropics ◽  
Final Harvest

Previous experiments in the Australian tropics have observed a 'slowdown' in biomass accumulation in mature sugarcane crops. By installing scaffolding to prevent lodging, we eliminated the growth 'slowdown' in 3 experiments to confirm that lodging and stalk death are part of the explanation. In both the wet and dry (irrigated) tropics, lodging of sugarcane significantly decreased both fresh cane yield and commercial cane sugar content (CCS). Prevention of lodging increased cane yield by 11–15%, CCS by 3–12%, and sugar yield by 15–35% at the final harvest in August–September. The rate of increase in CCS in lodged cane was reduced following lodging, although CCS had partially recovered by harvest.A possible component of the lodging effect is a slowdown in the growth due to the ageing of the crop. However, a younger crop (late crop treatment) grew no faster than the scaffolded treatment and so discounted this. In the dry tropics, where cane is irrigated and grows under high radiation, sugar yield was 40 t/ha with scaffolding installed. The increased yield (compared with 35 t/ha in lodged cane) was due to both the survival of an extra 0.8 stalks/m2 and increased accumulation of sugar in live stalks. In 2 years in the wet tropics where sugar yield with scaffolding was 16 t/ha, the same factors, with the addition of increased biomass accumulation in live stalks, were responsible for the increase.

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