Acquisition of plant phenotypic information facilitates breeding, sheds light on gene action, and can be applied to optimize the quality agricultural forestry products. Because leaves often show fastest responses external environmental stimuli, leaf traits are indicators growth, health, stress levels. Combination new imaging sensors, image processing, data analytics permits measurement over full life span plants at high temporal resolution several organizational levels from organs individual...

Abstract Key message The lack of efficient phenotyping capacities has been recognized as a bottleneck in forestry and breeding. Modern technologies use systems equipped with various imaging sensors to automatically collect high volume phenotypic data that can be used assess trees' attributes. Context Efficient the potential spark new Green Revolution, it would provide an opportunity acquire growth parameters dissect genetic bases quantitative traits. Phenotyping platforms aim link...

Summary Increased drought frequency and severity in a warming climate threaten the health stability of forest ecosystems, influencing structure functioning forests while having far‐reaching implications for global carbon storage regulation. To effectively address challenges posed by drought, it is imperative to monitor assess degree stress trees timely accurate manner. In this study, gradient experiment was conducted with poplar as research object, multimodal data were collected subsequent...

Studying population genetic structure and diversity is crucial for the marker-assisted selection breeding of coniferous tree species. In this study, using RAD-seq technology, we developed 343,644 high-quality single nucleotide polymorphism (SNP) markers to resolve 233 Chinese fir selected individuals from 4th cycle program, representing different generations provenances. The was high with (Pi ) 0.003, Ho He 0.215 0.233, respectively, indicating that has a broad base. differentiation level...

Accurate and timely information on the number of densely-planted Chinese fir seedlings is essential for their scientific cultivation intelligent management. However, in later stage cultivation, overlapping lateral branches among individuals too severe to identify entire individual UAV image. At same time, high-density planting nursery, terminal bud each seedling has a distinctive characteristic growing upward, which can be used as an identification feature. Still, due small size dense...

Chinese fir (Cunninghamia lanceolata (Lamb.) Hook) is the most commercially important conifer in China, and Nanjing Forestry University – Fujian Province Cooperation (NJFU Cooperation) breeding program has advanced it into third cycle of selection breeding. In this paper, we estimated genetic parameters from four sites for 80 half-sib families summarized previous estimates with an objective to propose optimal strategy. Heritability averaged 0.20 0.14 height diameter at breast (DBH),...

We used spatial, global trend and post-blocking analysis to examine the effectiveness of a progeny trial in tree breeding program for Chinese fir (Cunninghamia lanceolata (Lamb.) Hook) on hilly site with an environmental gradient from hill top bottom. Diameter at breast height (DBH) data had significant spatial auto-correlations among rows columns. Adding first-order separable autoregressive term more effectively modelled variation than did incomplete block (IB) model experimental design....

Chinese fir (Cunninghamia lanceolata) is a significant timber species that has been broadly cultivated in southern China. A shoot blight disease on seedlings was discovered Fujian, China and fungus then consistently associated with the symptoms. This determined to be causing this disease, among others by fulfilling Koch’s postulates. Based morphological characteristics multilocus phylogenetic analyses sequences of internal transcribed spacer, partial glyceraldehyde-3-phosphate dehydrogenase...

As global temperatures warm, drought reduces plant yields and is one of the most serious abiotic stresses causing losses. The early identification great significance for making improvement decisions in advance. Chlorophyll closely related to photosynthesis nutritional status. By tracking changes chlorophyll between strains, we can identify impact on a plant’s physiological status, efficiently adjust ecosystem adaptability, achieve optimization planting management strategies resource...

Drought stress is one of the main threats to poplar plant growth and has a negative impact on yield. Currently, high-throughput phenotyping been widely studied as rapid nondestructive tool for analyzing status plants, such water nutrient content. In this study, combination computer vision deep learning was used drought-stressed sapling phenotyping. Four varieties saplings were cultivated, 5 different irrigation treatments applied. Color images samples captured analysis. Two tasks, including...

Identification of genes controlling shoot branching is crucial for improving plant architecture and increasing crop yield or biomass. A mutant Chinese fir named “Dugansha” (Cunninghamia lanceolata var. dugan.) has been isolated in our laboratory. We chose the cDNA-AFLP technique an effective strategy to screen that potentially regulate using this mutant. An RNase III-like1 cDNA fragment ClRTL1 was identified as a potential positive regulator. To investigate function regulating branching, we...

Chinese fir (Cunninghamia lanceolata (Lamb.) Hook.) is an important timber species native to southern China. While the single, unstructured breeding strategy was employed in past three cycles of breeding, it no longer adequate for managing a more advanced population. In this study, we utilized restriction-site-associated DNA-sequencing (RAD-seq) estimate genetic diversity populations and phenotypic values or gain hundred-grain weight, diameter at breast height, wood basic density. To achieve...

Abstract A total of 1226 increment cores were sampled from two provenance trials Pinus radiata D. Don planted in New Zealand (Kaingaroa) and Australia (Kangaroovale), to study variation inheritance wood density selections three mainland California natural populations: Año Nuevo, Monterey Cambria. The represents a back-to-back comparison the same family material on contrasting sites between Australia. was significantly different Nuevo Cambria at Kaingaroa ( p <0.05), had slightly higher...

Abstract Winter dormancy ensures temperate zone’s trees proper response to environmental changes and enhances their adaptability. In northern hemisphere, conifers’ is induced by short-day cold temperature. Previous studies have revealed that TFL2 a key regulator involved in bud set growth cessation during the dormancy-induced phase. Based on annual expression profile analysis of PtTFL2 Chinese pine ( Pinus tabuliformis Carr.), we identified time nodes for initiation autumn. To provide...