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This study to Crown the 1 and Xiasi One two varieties of sponge to the material in the seedling stage with four different photoperiod [ day / night 6h/18h, 8h/16h, 10h/14h and CK ( approximately 14h/10h)] for processing and determination of physiological indicators during change different photoperiod treatment edges loofah flower differentiation and production , to determine the optimum light day long . The conclusions are as follows : 1 , compared with CK , the short-day treatment can first female flowers occur about 10 days ahead of time to make a section bit to reduce the 10-20 section , the first male flowers occurred 6-10 days earlier section bit reduce 2-3 section . , Compared with CK , the number of female flowers of the two species of 10h treatment increased the 6h and 8h processing , the female flowers number reduced ; short day treatment reduce Crown One male flowers , increase Xiasi No. 1 male flower number ; 10h treatment increase the ratio of the two species of male and female flowers . 3 , compared with CK , 10h treatment , Crown One and Xiasi , One yield of 14.84% and 1949 % respectively ; 6h and 8h processing the Crown One cut by 14.10% and 9.63% , respectively , and 20.38% , respectively, cut in Xiasi One and 12.05% . 4 under different photoperiod treatment , the two changes in the free amino acid content of sponge species leaf within an overall downward trend , not a significant difference between treatments ; hormone dynamic equilibrium hypothesis and endogenous hormones measured , and the results showed that : GA < sub> 3 effect ANDROGENIC ; pro - estrogen effect the high vinyl release rate ; the low content ZRs, IAA flower Sexual Differentiation favor ; the ABA pre appear peak late to keep the lower level is conducive ribbed loofah flower sex differentiation ; ABA / GA 3 and GA 3 / IAA ratio increases , appropriate ZRs / IAA ratio range ( Crown One ratio 1.2-10.5 , Xiasi One ratio 0.5-1.0 ) in favor of the flower bud differentiation ; higher levels of ABA / IAA ratio , the low levels of ZRs / GA 3 and ZRs / ABA in the ratio , which help to promote flower morphogenesis . The comprehensive analysis of Different Growth photoperiod treatment Flower Sexual Differentiation and production of sponge varieties of the two , the results showed that the length of 10h light is the best .
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