Variability in sugarcane under rainfed condition

Kamat, D. N.; Singh, Jatinder

doi:10.1007/bf02945535

Cited by 9 publications

(5 citation statements)

References 2 publications

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“…High and positive correlation between NSM and cane yield was recognized previously by Kamat & Singh (2002). CP74-2005, a commercial variety, had the highest II and ID which was also corroborated in previous biplots, however, this variety would not be planted by farmers.…”

Section: Discussionsupporting

confidence: 80%

Genotype by environment interactions for damage caused by Diatraea spp. borers in sugarcane

et al. 2018

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Genotype by environment interactions for damage caused by AbstractDiatraea spp. (Lepidoptera: Crambidae) or sugarcane stem borers are important sugarcane pests in Venezuela. The use of resistant cultivars is part of an integrated management to control these insects in many countries. The aim of this study was to evaluate a group of sugarcane genotypes for Diatraea damage in several environments, and to assess the interaction among damage caused by Diatraea and yield components. Data were collected from five sugarcane field trials located in plots belonging to the Venezuelan Sugarcane Breeding Program. Twenty genotypes were evaluated for Diatraea damage in a completely randomized block design with three replicates. AMMI and GGE biplot analyses were executed for infestation intensity (II). Genotypes that showed best stability, good yield and low damage from Diatraea spp. across environments were V99-236, V00-50 and V99-190. Cultivar CP74-2005 was the most affected by injuries of sugarcane stem borers throughout locations. Intensity of infestation (II) and index of damage (ID) were highly associated. Furthermore, high intensity of infestation (II) and index of damage (ID) caused by Diatraea disturbed the Pol % cane of the genotypes.Keywords: Genetic phenomena; control methods; AMMI; GGE biplot; stable resistance; mega-environments. ResumenLos taladradores de la caña de azúcar Diatraea spp. (Lepidoptera: Crambidae) son importantes plagas de la caña de azúcar en Venezuela. El uso de cultivares resistentes forma parte del manejo integrado para el control de esos insectos en muchos países. Los objetivos de este trabajo fueron evaluar un grupo de genotipos de caña de azúcar a los daños de Diatraea spp. en varios ambientes y determinar la interacción entre los daños causados por el complejo de insectos del genero Diatraea y los componentes de rendimiento. Los datos fueron recolectados en cinco localidades evaluadas por el programa venezolano de mejoramiento de la caña de azúcar. Veinte genotipos fueron evaluados al daño de Diatraea spp. en cinco localidades en un diseño de bloques al azar con tres repeticiones. La tasa de intensidad de infestación (II) causada por Diatraea spp. fue analizada mediante los modelos AMMI y GGE biplot. Los genotipos más recomendados por su estabilidad, buen rendimiento y menor daño por taladradores del tallo a través de los ambientes fueron: V99-236, V00-50 y V99-190. El cultivar CP74-2005 fue el más afectado por el daño de Diatraea spp. a través de las localidades. La intensidad de la infestación (II) y el índice de daño (ID) estuvieron altamente asociados. Altas tasas de intensidad de infestación (II) e índice de daño (ID) causado por Diatraea afectaron el Pol % caña de los genotipos. Palabras clave: Fenómeno

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Section: Discussionsupporting

confidence: 80%

Genotype by environment interactions for damage caused by Diatraea spp. borers in sugarcane

et al. 2018

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“…Advances in Agriculture 7 Advances in Agriculture 9 This is in agreement with previous studies on sugarcane germplasm [33][34][35]. This is the first study to report information on geographical pattern of variation in Ethiopian local sugarcane germplasm which has been lacking so far.…”

Section: Quantitative Characterssupporting

confidence: 88%

Sugarcane Landraces of Ethiopia: Germplasm Collection and Analysis of Regional Diversity and Distribution

Gashaw¹,

Mekbib

Ayana³

2018

Advances in Agriculture

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Sugarcane has been cultivated by smallholder farmers since 16th century in Ethiopia and preceded the commercial production. However, as far as this study is concerned, no exploration and collection have been conducted to know the landraces and study the regional diversity of the crop. Therefore, the objectives of this study were to collect native sugarcane landraces in Ethiopia and to assess phenotypic diversity and analyze regional distribution among landraces collected from different geographical regions. More than 300 sugarcane genotypes were collected. The landraces were analyzed for 21 quantitative stalk and juice quality characters and 16 qualitative characters. Phenotypic diversity among landraces was high, as expressed by the large range of variation for mean quantitative traits and the high (0.80) Shannon–Weaver diversity index. Our results provided experimental evidence on occurrence of geographical variation and significant within-region variation where it was high in the regions of Amhara, Benshangul-Gumz, and SNNPR. Wide variability of agronomically important characters in sugarcane such as millable stalk count at harvest, single cane weight, and plant height was observed among regions. These characters also demonstrated high correlation with cane and sugar yield and the altitude of the collection sites. Therefore breeders can utilize accessions of regions showing variability for these characters in selection programs and to design breeding strategies to produce varieties with best commercial merits. The present study contributes to updating sugarcane descriptors adopted from USDA-ARS as well as Bioversity passport data for the future collection and evaluation. The paper discussed insinuation of the results with regard to plant breeding, germplasm collection, and conservation as well as the plausible sources for the wide range of variation observed. This is the first study to report landrace sugarcane genetic resources in Ethiopia and information on geographical pattern of variation in Ethiopian local sugarcane germplasm.

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“…The magnitude was lower for Brix in January and for Purity per cent being lowest. Kamat and Singh (2001) found similar result i.e. higher genotypic and phenotypic coefficient of variation for germination percentage, number of shoots, leaf area index, cane height, number of millable canes, single cane weight and cane yield.…”

Section: Resultssupporting

confidence: 59%

Estimation of Variability in Red Rot Inoculated and Un- Inoculated Early Maturing Sugarcane Clones for Cane Yield and Juice Quality Traits

Neelofer¹,

Kumar²

2017

Int.J.Curr.Microbiol.App.Sci

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Variability in sugarcane under rainfed condition

Cited by 9 publications

References 2 publications

Genotype by environment interactions for damage caused by Diatraea spp. borers in sugarcane

Genotype by environment interactions for damage caused by Diatraea spp. borers in sugarcane

Sugarcane Landraces of Ethiopia: Germplasm Collection and Analysis of Regional Diversity and Distribution

Estimation of Variability in Red Rot Inoculated and Un- Inoculated Early Maturing Sugarcane Clones for Cane Yield and Juice Quality Traits

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