Genotypic variation in transpiration efficiency due to differences in photosynthetic capacity among sugarcane-related clones

Abstract

HighlightGenotypic variation in both average stomatal conductance operating levels and photosynthesis rates for given conductance levels make important contributions to the variation in intrinsic transpiration efficiency in diverse sugarcane-related germplasm.

Genetic Variability and Heritability among Sugarcane Genotypes in Plant Crop for Some Agronomic Traits under Tropical Dry Climate of Ferké, Ivory Coast

“…As stated by Shivasubramanian and Menon [48] cited by different investigators [16,24,[49][50], PCV and GCV values are ranked as low, medium and high with 0 to 10%, 11 to 20% and higher than 20% respectively ( Table 5). Based on that statement, all PCV and GCV values determined which ranged from 9.3 to 57.6% on the one hand, and from 1.7 to 53.0% on the other hand, varied from low to high.…”

“…In contrast, moderate values (43-52%) were observed for sugar yield, juice purity and cane yield. Estimates of mean genetic advance (GAM) are categorized similarly to GCV and PGV according to Falconer and Mackay [23] cited by several authors [48][49][53][54][55]. Therefore, higher values of genetic advance were observed for stem borer infestations (100%), sugar yield (33%), recoverable sucrose (28%) and sucrose content (20%).…”

Genotype x Environment Interactions in Sugarcane under Irrigation for Agronomic Traits at Advanced Screening Stage in Ferké, Northern Ivory Coast

“…The phenotypic and genotypic variances for each trait were estimated from the RCBD analysis of variance ( Table 1). The expected mean squares under the assumption of random effects model was computed from linear combinations of mean squares were determined as follows (Burton and Davane [32], cited by Shitahum et al [33] and Péné and Béhou, 2019 [26]: Broad sense heritability h² = 100 x σ² g / σ² p Where h² is low (<30%), moderate ([30-60%[) and high (≥60%), Robinson [35] cited by different authors [31,[36][37].…”

“…Genetic advance (GA) and genetic advance as percent mean (GAM): GA = k x h² x σ p and GAM = 100 x GA/X. With k: standard selection differential at 5% selection intensity (k = 2.063) and X: grand mean of trait X. GAM, similarly to PCV and GCV, is low (0-10%]), moderate ([11-20%[) and high (≥20%]), Falconer and Mackay [38] cited by several authors [37,[39][40][41].…”

Saccharum×Miscanthusintergeneric hybrids (miscanes) exhibit greater chilling tolerance of C4photosynthesis and postchilling recovery than sugarcane (Saccharumspp. hybrids)

“…Modern sugarcane cultivars are interspecific hybrids consisting primarily of Saccharum officinarum L., with an additional minority percentage of genes introgressed from Saccharum spontaneum L. (typically for resistance to abiotic and biotic stresses) in a process historically referred to as nobilization (D'Hont et al, ; Fageria, Moreira, Moraes, Hale, & Viator, ; Li et al, ; Roach, ; Sreenivasan & Ahloowalia, ; Stevenson, ). Other Saccharum species, such as S. robustum Brandes & Jeswiet ex Grassl, S. barberi Jeswiet, and S. sinense Roxb.…”