论查为仁孤高愁苦的诗心

查为仁是雍乾时期著名的文化人,主持水西庄,风雅唱和二十余年。时人也多因此将之视为“附庸风雅”者。然细考其一生心迹,我们仍可探得其风流闲适表象之下孤高愁苦的灵魂。究其原因主要是家族及师友的诗文化熏沐以及早年科场失意的经历养成了其执着孤介的性格,并形成孤高愁苦的诗心,从而表现出与盛世社会相疏离的诗歌形态。正是这种文化人格与诗歌心态使得查为仁得到当时一大批下层文人的认同,并以此主持沽上诗坛,形成了濡沫相依的水西庄文人群体。     

Genetic analysis for brix weight per stool and its component traits in sugarcane (Saccharum officinarum)

Brix weight per stool (BW) of sugarcane is a complex trait, which is the final product of a combination of many components. Diallel cross experiments were conducted during a period of two years for BW and its five component traits, in- cluding stalk diameter (SD), stalk length (SL), stalk number (SN), stalk weight (SW), and brix scale (BS) of sugarcane. Phenotypic data of all the six traits were analyzed by mixed linear model and their phenotype variances were portioned into additive (A), dominance (D), additive×environment interaction (AE) and dominance×environment interaction (DE) effects, and the correlations of A, D, AE and DE effects between BW and its components were estimated. Conditional analysis was employed to investigate the contribution of the components traits to the variances of A, D, AE and DE effects of BW. It was observed that the heritabilities of BW were significantly attributed to A, D and DE by 23.9%, 30.9% and 28.5%, respectively. The variance of A effect for BW was significantly affected by SL, SN and BS by 25.3%, 93.7% and 17.4%, respectively. The variances of D and DE effects for BW were also significantly influenced by all the five components by 5.1%～85.5%. These determinants might be helpful in sugarcane breeding and provide valuable information for multiple-trait improvement of BW.