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为了弥补家庭服务从业人员的不足,解决中国的老龄化问题,本文提出了基于树莓派的代理机器人系统。该系统实现了对家居环境参数的采集,建立代理机器人与远程用户的连接,实现信息反馈和控制。 相似文献
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树莓无刺性状杂交试验初报 总被引:2,自引:0,他引:2
对8个树莓品种物候期及有效授粉期进行了调查,'早红'开花成熟最早,'美国22号'开花成熟最晚;'无刺红'与其它7个品种的有效授粉期达10 d以上.以'无刺红,为母本与其它7个品种杂交授粉时,小核果坐果率的变化趋势与坐果率变化一致,果实的单果重倾向于母本,种子饱满、千粒重较大;以'无刺红'为父本时变化规律与之相似.对杂交后代实生苗的刺密度进行了调查,刺密度属数量性状连续变异,后代分离广泛,其中澳洲红自交后代无刺实生苗比例最大,可以达到30.56%.杂交后代刺密度组合传递力3.94,自交后代刺密度组合传递力1.67. 相似文献
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D. L. Jennings 《Euphytica》1982,31(3):953-956
Summary Gene H determines cane hairyness in raspberries and was reported to facilitate escape from infection by Botrytis cinerea and Didymella applanata. However, experiments with mycelial inoculations of wounded canes showed that it conferred a form of resistance which was evident for a long period after the establishment of infections by these pathogens. The gene also contributed to the resistance of fruit to B. cinerea and of canes to Leptosphaeria coniothyrium. Alternative hypotheses to explain these observations are discussed: two based upon its possible genetic linkage with a gene or genes for resistance and one based upon its possible pleiotropic effects. 相似文献
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Summary Varying degrees of resistance to cane spot were recorded among red raspberries in two cultivar trials and in 15 segregating families. The inheritance of resistance was studied, and the effect of gene H which determines the presence of cane hairs was assessed in eight of the families. The 0 to 5 scale used to record disease incidence was found to approximate to a logarithmic scale for the range of 0 to 93 cane spots per cane. Gene H and h phenotypes averaged scores of 3.05 and 2.42 respectively, but other genes independent of these had more influence on resistance. The latter genes appeared to be largely dominant. The possibility is discussed that one of them was a major gene with a large effect, but the evidence was equivocal in the absence of discontinuity in the expression of resistance. Resistance to yellow rust was studied in five of the families and was highly correlated with resistance to cane spot. Gene H had more influence on this disease, the mean counts of telia per unit leaf area for H and h segregates being 17.1 and 4.1 respectively. 相似文献
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树莓叶片再生研究初报 总被引:1,自引:0,他引:1
利用正交设计试验法研究了基本培养基、6-BA、IBA、和蔗糖4个因素及其组合对树莓叶片再生的影响。结果表明,6-BA对树莓叶片的再生影响最大,其次为IBA及基本培养基,影响最小的因素为蔗糖。树莓叶片再生的适宜组合为NN69 6-BA2.5mg/L IBA0.25mg/L 蔗糖40g/L。 相似文献
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为了明确树莓露地越冬过程中致死原因,在沈阳地区,以栽培树莓(Rubus idaeus L.)品种美国22号(Royal-ty)、秋福(Autumn Bliss)、哈瑞太慈(Heritage)、胜利(Victory)为试材,以野生树莓牛叠肚(R.crataegifolius Bge.)为对照,在露地不防寒自然越冬过程中连续定期取茎,测定电导率、萌芽率、含水量,观察茎表皮变化,结合外界气温和湿度的变化,确定树莓越冬过程中关键致死原因和时期。结果表明,野生树莓牛叠肚在沈阳可露地越冬,4个栽培树莓品种均不能正常露地越冬。树莓露地越冬受气温和湿度的影响,露地越冬的茎经历持续低温后,春季气温回升时伴随空气湿度大幅度下降,导致茎抽条死亡,是树莓越冬致死的主要原因,其关键致死时期为2月8日至3月8日。试材越冬能力强弱排序为:牛叠肚树莓>哈瑞太慈>秋福>美国22号>胜利。 相似文献