Introduction,Cultivation and Variety Screening of Cut Flower of Lathyrus odoratus
Sweet pea(Lathyrus odoratus)is a high-end cut flower species with a huge demand in the current cut flower market.It is urgent to introduce new species and establish suitable cultivation methods,in order to improve the competitiveness of cut flowers in the market in China.This study introduced 16 new species of sweet pea from England,which were cultivated in the greenhouse using the method of towing the sweet pea's vines repeatedly.The main characteristics of sweet pea were investigated to know the yield and quality of 16 sweet pea species.By in-vestigating the main characters of sweet pea,the yield and quality of 16 sweet pea varieties were mastered,and the best varieties were selected by analytic hierarchy process(AHP).In the same time,the main meteorological factors in greenhouse facilities were also measured to identify their relationship with the yield and quality of sweet pea.In ad-dition,the preservation effect of chrysal AVB preservative on sweet pea was also studied.The results showed that there are significant differences in the characters among different sweet pea varieties,with 9 species having a ger-mination rate greater than 80％,2 species having a stem growth rate of 3.0 cm per day,and 4 species having a yield of 2.5×104 branches/667 m2 per month.There are only 2 species of flower branches with a length of B grade.12 species reaches a hardness of 45 HA.Six high-yield and high-quality species were ultimately selected based on those characters.In terms of the relationship with meteorological factors,the growth rate of stems had moderate positive correlation with solar radiation,while the length of flower branches had moderate negative correlation with solar radiation;the length of flower branches had moderate positive correlation with temperature,but the yield had strong negative correlation with temperature.The yield and flower branches'length were positively correlated with relative humidity.The concentration of 1∶1 500 of AVB had the best preservation effect on sweet peas(7 days).The results of this study can provide reference for the production of cut flower of sweet peas in China.
Variety screeningCultivated in the greenhouse facilitiesYieldQualityAnalytic hierarchy process
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