The glossy trait in sorghum: Its characteristics and significance in crop improvement

Maiti, Ratikanta; Rao, K E P; Raju, P. S.; House, L. R.

doi:10.1016/0378-4290(84)90032-7

Cited by 33 publications

(16 citation statements)

References 5 publications

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“…Leaf surface wetness (Nwanze et al, 1990) along with epicuticular wax (Nwanze et al, 1992) has been reported to be associated with susceptibility, and leaf glossiness with resistance to shoot fly (Blum, 1972;Agrawal & Abraham, 1985). There is negative correlation between glossiness with oviposition and deadhearts (Maiti et al, 1984;Kamatar & Salimath, 2003). The intensity of leaf glossiness at the seedling stage is positively associated with the level of resistance to shoot fly (Sharma et al, 1997).…”

Section: Discussionmentioning

confidence: 99%

Mechanisms of resistance to shoot fly, Atherigona soccata in sorghum

et al. 2005

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SummarySorghum shoot fly, Atherigona soccata (Rondani) is an important pest of sorghum in Asia, Africa, and Mediterranean Europe, and host plant resistance is an important component for the management of this pest. The levels of resistance in the cultivated germplasm are low to moderate, and therefore, it is important to identify genotypes with different mechanisms of resistance to pyramid the resistance genes. We studied the antixenosis for oviposition, antibiosis, and tolerance components of resistance in a diverse array of shoot fly-resistant and -susceptible genotypes. The main plants and tillers of SFCR 151, ICSV 705, SFCR 125, and, IS 18551 experienced lower shoot fly deadhearts at 28 days after seedling emergence, produced more number of productive tillers. The insects fed on these genotypes also exhibited longer larval period (10.1-11.0 days compared to 9.3 days on Swarna), lower larval survival and adult emergence (54.7-67.8 and 46.7-52.2% compared to 73.3 and 60.6% on Swarna, respectively), and lower growth and adult emergence indices as compared to the susceptible check, Swarna. Physico-chemical traits such as leaf glossiness, trichome density, and plumule and leaf sheath pigmentation were found to be associated with resistance, and chlorophyll content, leaf surface wetness, seedling vigor, and waxy bloom with susceptibility to shoot fly and explained 88.5% of the total variation in deadhearts.Step-wise regression indicated that 90.4% of the total variation in deadhearts was due to leaf glossiness and trichome density. The direct and indirect effects, correlation coefficients, multiple and step-wise regression analysis suggested that deadhearts, plants with eggs, leaf glossiness, trichomes on the abaxial surface of the leaf, and leaf sheath pigmentation can be used as marker traits to select for resistance to shoot fly, A. soccata in sorghum.

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Section: Discussionmentioning

confidence: 99%

Mechanisms of resistance to shoot fly, Atherigona soccata in sorghum

et al. 2005

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“…While the glossy plants noted by Tarumoto (1980) 16 showed a non-glossy appearance until the 4-5th leaf stages (during the first three weeks in Japan). A discrepancy exists between the definitions of glossy trait by Tarumoto (1980) 16 and by Maiti et al (1984) 10 , suggesting that there would be some other types of glossiness in addition to glossy and non-glossy cultivars in sorghum. Thus, the author examined some Indian cultivars for their leaf characteristics that were related with the glossiness.…”

Section: Glossy and Non-glossy Plantsmentioning

confidence: 99%

“…The results suggest a positive relationship between glossy plants and resistance to the sorghum shoot fly. Maiti et al (1984) 10 studied the relationship between trichome development and resistance to sorghum shoot fly, and noted that the trichomed cultivars had the "glossy trait" which was characterized by having a glossy appearance during the first three weeks. While the glossy plants noted by Tarumoto (1980) 16 showed a non-glossy appearance until the 4-5th leaf stages (during the first three weeks in Japan).…”

Section: Glossy and Non-glossy Plantsmentioning

confidence: 99%

Glossiness of Leaf Blades in Sorghum (Sorghum bicolor L. Moench); Its Visual and Ultrastructural Studies

Tarumoto

2005

JARQ

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The glossy leaf is an important character related with disease and pest resistance as well as varietal differences in Brassica oleracea and Zea mays. The author aimed to clarify the characteristic of glossiness that was newly found in sorghum cultivars. The visual difference between glossy and non-glossy plants could be identified by whether or not sprayed water adheres to leaf blades. The phenotype of non-glossy plants whose leaves shed water was due to the high density of star-shaped waxes that were detected in the ultrastructural observations. Moreover, true-glossy plants which water adheres to the surfaces of all leaves from 1st to flag leaf stages were found among Indian indigenous cultivars. The visual character of true-glossy plants was due to a reduction in the number of star-shaped waxes on leaves from 1st to 5th leaf stages in the observation by scanning electron microscope (SEM).

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“…Each type of tolerance is associated with several phenotypic and physiological traits; these relationships have been used to fine map QTL (quantitative trait loci) associated with both pre-and post-flowering drought tolerance. Traits that have been associated with drought resistance include heat tolerance, osmotic adjustment (Basnayake et al, 1995), transpiration efficiency (Muchow et al, 1996), rooting depth and patterns (Jordan and Miller, 1980), epicuticular wax (Maiti et al, 1984), and stay green (Rosenow et al, 1983). Combining phenotypic and marker-assisted breeding approaches should enhance drought tolerance breeding in energy sorghums.…”

Section: Biology and Adaptationmentioning

confidence: 99%