Three African eggplant （Solanum spp.） varieties were assessed in six mineral manures doses T ＋ 1/2T, T ＋ 1/4T, T, T - 1/4T, T - 1/2T and without fertilizer, with reference treatment T = 300 kg/ha of NPK 10-18-18 a...Three African eggplant （Solanum spp.） varieties were assessed in six mineral manures doses T ＋ 1/2T, T ＋ 1/4T, T, T - 1/4T, T - 1/2T and without fertilizer, with reference treatment T = 300 kg/ha of NPK 10-18-18 applied before transplanting ＋ a mixture of 100 kg/ha of urea and 200 kg/ha of potassium sulphate at 30, 60 and 90 d after transplanting, to establish fertilization protocol for their cultivation. The experiment was laid out in split-plot design with three replications with varieties constituting the main factor and the fertilizer doses as secondary factor. The main observed parameters were the number of days to 50% flowering, the fruit number and weight per plant, individual fruit weight and fruit yields. As results, the interaction between varieties and fertilizer doses was significantly different only for the number of days to 50% of flowering （P = 0.0078） and the fruit number per plant （P = 0.0001）, while any significant difference was observed for individual fruit weight （P = 0.64）, fruit weight per plant （P = 0.74） and fruit yields （P = 0.74）. The difference among the fertilizers treatments was significant for the number of days to flowering, number of fruits per plant, fruit weight per plant and fruit yield for Aub33K/06Gn and Aub55N/10K, whereas any significant difference was observed for these parameters concerning Aub21N/06Du. Whatever the variety, there was not any significant difference among the fertilizers treatments for the individual fruit weight. For Aub33K/06Gn and Aub55N/10K cultivation, the fertilizers doses T - 1/4T and T - 1/2T are suggested, respectively, while a specific study is proposed for Aub21N/06Du. As perspective, economic studies are proposed to confirm the above suggested choices of fertilizers rates.展开更多
Background The successful end-point of in vitro fertilization （IVF） treatment is for a woman to give live birth. This outcome is based on various factors including adequate number of retrieved eggs. Failure to recru...Background The successful end-point of in vitro fertilization （IVF） treatment is for a woman to give live birth. This outcome is based on various factors including adequate number of retrieved eggs. Failure to recruit adequate follicles, from which the eggs are retrieved, is called a ＂poor response＂. How to improve the clinical pregnancy rates of poor responders was one of the tough problems for IVF. Methods The study involved 51 patients who responded poorly to high dose gonadotropin treatment in their previous cycles at our reproductive center, between April 2010 and February 2012. The previous cycle （group A） received routine long protocol; the subsequent cycle （group B） received modified super-long down-regulation protocol. The primary outcome of the study was the number of oocytes fertilized. The increase in the pregnancy rate was the secondary outcome. Differences between the groups were assessed by using Student＇s t test and Z2 test where appropriate. Results The patients＇ average age was （36.64±3.85） years. The mean duration of ovarian stimulation cycles of the group A patients was longer than those of the group B patients. The total dose of follicle-stimulating hormone （FSH） was significantly lower in the subsequent cycle. The peak value of serum estradiol on human chorionic gonadotrophin （hCG） day was lower in group A as compared with group B. The number of metaphase II oocytes recovered was significantly higher in group B. The cleavage rate in group A was significantly lower than in group B, 49 patients in group B reached embryo transfer stage, while 46 patients in group A reached this stage. Patients in group B received significantly more embryos per transfer as compared with group A. More pregnancies and more clinical pregnancies with fetal heart activity were achieved in group B. Conclusions This comparative trial shows that poor responder women undergoing repeated assisted reproduction treatment using modified super-long down-regulation protocol achieve more oocytes, leading to higher fertilization rate, compared to women receiving routine long protocol. Our study also showed that clinical pregnancy rate was significantly improved.展开更多
文摘Three African eggplant （Solanum spp.） varieties were assessed in six mineral manures doses T ＋ 1/2T, T ＋ 1/4T, T, T - 1/4T, T - 1/2T and without fertilizer, with reference treatment T = 300 kg/ha of NPK 10-18-18 applied before transplanting ＋ a mixture of 100 kg/ha of urea and 200 kg/ha of potassium sulphate at 30, 60 and 90 d after transplanting, to establish fertilization protocol for their cultivation. The experiment was laid out in split-plot design with three replications with varieties constituting the main factor and the fertilizer doses as secondary factor. The main observed parameters were the number of days to 50% flowering, the fruit number and weight per plant, individual fruit weight and fruit yields. As results, the interaction between varieties and fertilizer doses was significantly different only for the number of days to 50% of flowering （P = 0.0078） and the fruit number per plant （P = 0.0001）, while any significant difference was observed for individual fruit weight （P = 0.64）, fruit weight per plant （P = 0.74） and fruit yields （P = 0.74）. The difference among the fertilizers treatments was significant for the number of days to flowering, number of fruits per plant, fruit weight per plant and fruit yield for Aub33K/06Gn and Aub55N/10K, whereas any significant difference was observed for these parameters concerning Aub21N/06Du. Whatever the variety, there was not any significant difference among the fertilizers treatments for the individual fruit weight. For Aub33K/06Gn and Aub55N/10K cultivation, the fertilizers doses T - 1/4T and T - 1/2T are suggested, respectively, while a specific study is proposed for Aub21N/06Du. As perspective, economic studies are proposed to confirm the above suggested choices of fertilizers rates.
文摘Background The successful end-point of in vitro fertilization （IVF） treatment is for a woman to give live birth. This outcome is based on various factors including adequate number of retrieved eggs. Failure to recruit adequate follicles, from which the eggs are retrieved, is called a ＂poor response＂. How to improve the clinical pregnancy rates of poor responders was one of the tough problems for IVF. Methods The study involved 51 patients who responded poorly to high dose gonadotropin treatment in their previous cycles at our reproductive center, between April 2010 and February 2012. The previous cycle （group A） received routine long protocol; the subsequent cycle （group B） received modified super-long down-regulation protocol. The primary outcome of the study was the number of oocytes fertilized. The increase in the pregnancy rate was the secondary outcome. Differences between the groups were assessed by using Student＇s t test and Z2 test where appropriate. Results The patients＇ average age was （36.64±3.85） years. The mean duration of ovarian stimulation cycles of the group A patients was longer than those of the group B patients. The total dose of follicle-stimulating hormone （FSH） was significantly lower in the subsequent cycle. The peak value of serum estradiol on human chorionic gonadotrophin （hCG） day was lower in group A as compared with group B. The number of metaphase II oocytes recovered was significantly higher in group B. The cleavage rate in group A was significantly lower than in group B, 49 patients in group B reached embryo transfer stage, while 46 patients in group A reached this stage. Patients in group B received significantly more embryos per transfer as compared with group A. More pregnancies and more clinical pregnancies with fetal heart activity were achieved in group B. Conclusions This comparative trial shows that poor responder women undergoing repeated assisted reproduction treatment using modified super-long down-regulation protocol achieve more oocytes, leading to higher fertilization rate, compared to women receiving routine long protocol. Our study also showed that clinical pregnancy rate was significantly improved.
