Stability of Relationship Between Chlorophyll Density and Soil Plant Analysis Development Chlorophyll Meter Readings in Peanut Across Different Drought Stress Conditions

Arunyanark, A.; Jogloy, Sanun; Vorasoot, Nimitr; Akkasaeng, C.; Kesmala, Thawan; Patanothai, A.

doi:10.3923/ajps.2009.102.110

Cited by 16 publications

(4 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A close relation between SCMR and chlorophyll density reported earlier [5][6][7][8][9]. Chlorophyll density and SCMR association might be influenced by the factors such as time of observation of plant or leaf age and position and water scarce condition [8], on the other hand SCMR highly correlated with SLA and E [10][11].…”

Section: Introductionsupporting

confidence: 61%

Varied Mechanisms of Gas Exchange Parameters in Response to Altered Moisture Levels in Drought-Tolerant Cluster Bean [Cyamopsis Tetragonolaba (L.) Taub.] Genotypes

Seenaiah,

Babu,

Naik

et al. 2023

ijmst

View full text Add to dashboard Cite

An effort was made at Regional Agricultural Research Station (RARS), Rekulakunta to study the physiological attitudes of cluster bean (Cyamopsis tetragonoloba) against different water regimes such as 100%, 80%, 60%, 40%. Six cluster bean genotypes were grown in pots in a complete random block design (CRBD) and were regularly irrigated. Plants were subjected to drought treatment at 39 days after sowing (DAS) for 8 days. On the 46th day of sowing photosynthetic rate (PN), stomatal conductance (gS), transpiration (E), internal CO2 (Ci) were measured. Intrinsic water use efficiency (WUEi), relative water content (RWC), SPAD chlorophyll meter reading (SCMR) and specific leaf area (SLA) were determined using standard protocols. The maximum PN, gS, E, and Ci were recorded at 60% water level coupled with RWC, SCMR, and SLA. With the increased drought, genotypes showed reduced PN, gS, E, and Ci except in varieties RGC-1025 and RGC-936. WUEi showed a negative correlation with PN, gS, E, and Ci indicating the genotypical efficiency in copping water stress.

show abstract

Section: Introductionsupporting

confidence: 61%

Varied Mechanisms of Gas Exchange Parameters in Response to Altered Moisture Levels in Drought-Tolerant Cluster Bean [Cyamopsis Tetragonolaba (L.) Taub.] Genotypes

Seenaiah,

Babu,

Naik

et al. 2023

ijmst

View full text Add to dashboard Cite

show abstract

“…SLA has been reported to be associated with variation in photosynthetic capacity and chlorophyll density (Nageswara Rao et al, 2001; Kalariya et al, 2015). SCMR contributes to high photosynthesis and ultimately to increased yield (Arunyanark et al, 2009). Koolachart et al (2013) reported that SLA indicates high chlorophyll content in leaves that contribute to high photosynthesis and yield.…”

Section: Discussionmentioning

confidence: 99%

Physiological Traits for Shortening Crop Duration and Improving Productivity of Greengram (Vigna radiata L. Wilczek) Under High Temperature

et al. 2019

View full text Add to dashboard Cite

Greengram is an important protein-rich food legume crop. During the reproductive stage, high temperatures cause flower drop, induce male sterility, impair anthesis, and shortens the grain-filling period. Initially, 116 genotypes were evaluated for 3 years in two locations, and based on flowering, biomass, and yield attributes, they were grouped into four major clusters. A panel of 17 contrasting genotypes was selected for their heat tolerance in high-temperature greenhouses. The seedlings of the selected genotypes were exposed to heat shock in the range 37°C–52°C and their recovery after heat shock was assessed at 30°C. The seedlings of EC 398889 turned completely green and rejuvenated, while those of LGG 460 failed to recover, therefore, EC 398889 and LGG 460 were identified as heat-tolerant and heat-sensitive genotypes, respectively. Except for EC 398889, the remaining genotypes could not survive after heat shock. Fresh seeds of EC 398889 and LGG 460 were planted in field and pollen fertility and sucrose-synthase (SuSy) activity in grains were assessed at high temperatures. The pollen germination and SuSy activity were normal even at temperatures beyond 40°C in EC 398889 and high SuSy activity enabled faster grain filling than in LGG 460. The precise phenotyping demonstrated significant differences in the light-temperature response of photosynthesis, chlorophyll fluorescence imaging of quantum yield (Fv/Fm), and electron transport rate (ETR) between heat-tolerant (EC 398889) and heat-sensitive (LGG 460) genotypes. Molecular profiling of selected accessions showed polymorphism with 11 SSR markers and the markers CEDG147, CEDG247, and CEDG044 distinguished tolerant and sensitive groups of accessions.

show abstract

“…Although wood moisture content and density are important quality traits, measuring them is time-consuming, expensive, destructive and inconvenient for a large number of samples. These constraints preclude its use in plant breeding programs involving large numbers of samples (Arunyanark et al, 2008(Arunyanark et al, , 2009. The assessment of wood moisture content and density requires an indirect trait that is easy and quick to measure, economical and effective.…”

Section: Relationship Between Wood Quality Chemical Composition and C...mentioning

confidence: 99%

Genotype performance and relationship between leaf traits, biomass yield and wood quality on interspecific hybrids of Jatropha

2023

ANRES

View full text Add to dashboard Cite

Importance of the work: Pruning tolerance of fast-growing trees is critical for biomass energy crop cultivation. Leaf traits might be used to identify Jatropha genotypes with high biomass yields. Objectives: To evaluate the effects of pruning and performance of genotypes for leaf traits, biomass yield and wood quality in interspecific hybrids between Jatropha curcas and J. integerrima, as well as the relationships among these traits. Materials & Methods: In total, 16 Jatropha genotypes were planted in the field for 2 yr and pruned each year for biomass harvesting. Leaf traits, biomass yield, wood quality, chemical composition, and calorific value of wood were all assessed. Results: After pruning, there was no significant reduction in the overall biomass yield and leaf traits, such as leaf size, average leaf weight, specific leaf area (SLA) and SPAD chlorophyll meter reading (SCMR). Furthermore, the hemicellulose and ash contents, moisture, density and calorific value of Jatropha genotype wood were not reduced. Leaf traits, biomass yield and wood quality of a Jatropha genotype showed significant genotype variation. Interspecific hybrids KUBJL 1, KUBJL 3, KUBJL 4, KUBJL 6, KUBJL 11, and KUBJL 13 showed improved leaf traits after pruning. Pruning had no effect on the chemical composition of KUBJL 2, KUBJL 3, KUBJL 8, KUBJL 10, KUBJL 5, KUBJL 11, KUBJL 12, and KUBJL 14. Moreover, KUBJL 5, KUBJL 11, KUBJL 5, KUBJL 4, and KUBJL 2 had the highest pruning tolerance index (PTI), with fresh weight PTIs of 106.25%, 104.07%, 98.27%, and 94.57%, respectively. There were significant and highly significant correlations between biomass yield and leaf size (Pearson's coefficient [r] = -0.57 [p < 0.05] to -0.75 [p < 0.01]), average leaf weight (r = -0.58 [p < 0.05] to -0.74 [p < 0.01]), and SCMR (r = 0.64 [p < 0.05] to 0.79 [p < 0.01]). Wood calorific value was also related to leaf moisture content (r = -0.33 ns to -0.69 [p < 0.01]), wood moisture content (r = -0.73 [p < 0.01] to -0.77 [p < 0.01]), wood density (r = 0.25 ns to 0.75 [p < 0.01]), lignin (r = 0.71 [p < 0.01] to 0.74 [p < 0.01]) and ash (r = -0.73 [p < 0.01] to -0.82 [p < 0.01]). Main finding: These traits could be used to select Jatropha hybrids with high biomass yield and heat value. Furthermore, Jatropha interspecific hybrids with pruning tolerance could be selected from this study.

show abstract

Stability of Relationship Between Chlorophyll Density and Soil Plant Analysis Development Chlorophyll Meter Readings in Peanut Across Different Drought Stress Conditions

Cited by 16 publications

References 18 publications

Varied Mechanisms of Gas Exchange Parameters in Response to Altered Moisture Levels in Drought-Tolerant Cluster Bean [Cyamopsis Tetragonolaba (L.) Taub.] Genotypes

Varied Mechanisms of Gas Exchange Parameters in Response to Altered Moisture Levels in Drought-Tolerant Cluster Bean [Cyamopsis Tetragonolaba (L.) Taub.] Genotypes

Physiological Traits for Shortening Crop Duration and Improving Productivity of Greengram (Vigna radiata L. Wilczek) Under High Temperature

Genotype performance and relationship between leaf traits, biomass yield and wood quality on interspecific hybrids of Jatropha

Contact Info

Product

Resources

About