The Effect Of External Hormone On Source And Sink Character Of Double-low Spring Rape

The objective of this paper was to study the effect of the photosynthesis and mechanism physiology of double low spring rape on external plant hormone treatment and the treatment combination in different stages at 2006-2007 years. This experiment was carried out on the photosynthesis and mechanism physiology of"Qing You 14",distilled water(CK), in different concentrations of hormones, different treatment combinations, different treatment period, the source of spring rape, the organ The growth and development characteristics of photosynthetic characteristics, such as physiological indicators of material accumulation and yield, quality changes, aimed at high yield and quality for spring rape cultivation provide theoretical and technical basis. The results showed that:Different concentrations of the rape on the role of photosynthesis significantly,with higher concentrations of NAA, ETH treatment plant leaf area, leaf and pod ch-lorophyll content, photosynthetic rate increase. In the concentration of 6-BA combi-nation hormone treatment and three of the highest indicators of photosynthesis, thenreduce the concentration of too much different period of treatment, flowering + poddevelopment period twice on the role of leaf obvious. Pod development of a pod d-eal with the photosynthesis of the highest indicators.Different concentrations of various organs dealing with the impact of the growth and development, with the increased concentration of NAA, ETH treatment canpromote the pod length, width, single main sequence; first and second branches po-d dry weight increase. In the concentration of 6-BA and three combination hormon-e treatment pod length and width, the highest-dry and fresh weight; pod developme-nt of a treatment pod length and width, the highest- dry and fresh weight.With the increased concentration, NAA and ETH treatment Kok peel nitrate r-eductase, enhance the activity of starch, high concentrations of 6-BA to reduce the activity. 6-BA, ETH and 6-BA, ETH, NAA combination with flowering + pod of t-he second period with a pod of view, dealing with the promotion leaves nitrate red-uctase activity increase. Deal with different periods, nitrate reductase, amylase for change: pod development of processing> + pod flowering period of processing> flo-wering treatment. NNA ,6-BA, increased concentration, reduced protein content Kok peel, seed and peel angle of soluble sugar content and always maintain a high level, slow de-cline. 1 spraying flowering of leaf growth and photosynthesis are inhibited Kok pee-l protein content significantly lower flowering + pod of the second period of spray-ing, pod development phase 1, spraying the protein did not significantly reduce the role of .