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The potato varieties in eastern Fujian were single, which was difficult to meet the diversified market demand. In order to screen out the excellent potato varieties suitable for being planted in eastern Fujian, ten potato varieties (lines) were introduced, and then the adaptability evaluation of their growth period, agronomic traits, tuber form, yield and disease occurrence was carried out with Holland 15 as the control group (CK). The results showed that; Among the tested varieties (lines), the yields of the nine varieties including Minshu No. 12, Minshu No. 5, Minshu No. 2, Quanshu No. 5, Mincaishu No. 4, Mincheng No. 2, Minlongshu No. 1, Minshu No. 9 and Shiyan No. 1 were all higher than CK, and the yield increasing rates were 45.9%, 34.2%, 28.6%, 23.6%, 22.9%, 22.2%, 18.4%, 12.7% and 11.6%, respectively, which all reached the significant level. And the four varieties with the lowest incidence of early blight disease, late blight detection and black shank disease were Minshu No. 2, Minshu No. 5, Mincheng No. 2 and Minshu No. 9. Through the comprehensive evaluation, the three varieties including Minshu No. 5, Minshu No. 2 and Mincheng No. 2 had high yield, low incidence and strong disease resistance, which were suitable to for the demonstration and cultivation promotion in Xiapu County, while the remaining varieties needed the further experimental study. [ABSTRACT FROM AUTHOR]

A sensing-based spectrum sharing network with multi-antenna is suggested, which is consisted of a single-input single-output (SISO) primary user (PU) pair and a multi-input single-output (MISO) secondary user (SU) pair. In proposed network model, PU sends message to the SU when PU occupies the channel. So the SU calculates total interference power constraint by received PU message and adaptively adjusts its transmit power in order to avoid harmful interference to PU. If the licensed band is empty, the SU immediately occupies the channel with maximum transmitted power. Simultaneously, in order to maximize the system achievable rate, the optimal power allocation strategies among transmitter antennas are derived under the primary interference power constraint. Finally, the derived optimal power control policies are validated through simulations. The results show that, compared to the opportunistic spectrum access and sensing-based spectrum sharing, derived power control policies in suggested system model exhibits better performance. [ABSTRACT FROM AUTHOR]