Identification and Evaluation of Diploid and Tetraploid Sims.

Sims (2n = 18) is a perennial plant with high utilization values, but its spontaneous polyploidy in nature has yet to be seen. Thus, this study aims to enhance our understanding of polyploidy and provide rudimentary knowledge for breeding new cultivars. In this study, colchicine-induced tetraploid (2n = 36) was used as experimental material (T1, T2, and T3) to explore the variances between it and its diploid counterpart in morphology, physiology, and biochemical characteristics, and a comparison of their performance under cold stress was conducted.

The Response and Evaluation of Morphology, Physiology, and Biochemistry Traits in Triploid Sims 'Mantianxing' to Drought Stress.

As one of the most influential environmental factors, drought stress greatly impacts the development and production of plants. Triploid-induced Sims 'Mantianxing' is an important new cultivar for multi-resistance variety selective breeding, which is one of the breeding essential targets. However, the performance of triploid 'Mantianxing' under drought stress is unknown.

Physiological Characteristics and Transcriptomic Responses of Lateral Branching to Different Shading Environments.

is an important component of China's economic development and forest ecosystems. The growth of seedlings experienced a slow growth phase, which led to a long seedling cultivation period. However, asexual reproduction can ensure the stable inheritance of the superior traits of the mother tree and also shorten the breeding cycle.

[Risk factors analysis of coronal imbalance after posterior long-level fixation and transforaminal lumbar interbody fusion for degenerative lumbar scoliosis].

Objective: To explore the risk factors of coronal imbalance after posterior long-level fixation and fusion for degenerative lumbar scoliosis.

Methods: Retrospectivly analyzed the clinical records of 41 patients with degenerative lumbar scoliosis who had received posterior long-level fixation and fusion with selective transforaminal lumbar interbody fusion (TLIF) accompanied by Ponte osteotomy between August 2011 and July 2016. Patients were divided into imbalance group (group A, 11 cases) and balance group (group B, 30 cases) according to state of coronal imbalance measured at last follow-up.