【摘要】 利用7个CIMMYT亚热带玉米自交系与1个热带Suwan1优良自交系杂交,产生7个杂交组合,分别种植于云南19个不同的气候环境区域并进行鉴定。结果表明,各试点产量由高到低依次为宣威、石林、昭阳、昭通、楚雄、保山、大理、大姚、沧源、文山、墨江、曲靖、陇川、怒江、砚山、广南、普洱、会泽、德宏;各杂交组合在所有试点平均产量表现依次为YR806、YR803、YR801、YR805、对照(CK)、YR802、YR807、YR804,YR806(Suwan1×REC)高产性和稳产性表现最好,说明"Suwan1×REC"为较有利用潜力的杂优模式;所有杂交组合在石林、宣威、文山和砚山4个试验点表现均比对照品种增产;各组合在不同是生态环境区域产量表现差异显著,可根据各个生态区域选择适合的品种。更多还原

【Abstract】 Seven hybrid combinations were obtained by hybridization of 7 CIMMYT subtropical maize inbred lines and 1 tropical Suwan1 inbred lines.They were planted in 19 different climatic environments in Yunnan for identification.The results showed that the yield performance of each pilot was in the order of Xuanwei >Shilin>Zhaoyang>Zhaotong>Chuciong>Baoshan>Dali>Dayao>Cangyuan>Wenshan>Mojiang >Qujing >Longchuan >Yanshan >Guangnan >Pu’er >Huize >Dehong.The average yield performance of each hybrid combination in all pilots was in the order of YR806>YR803>YR801>YR805> CK >YR802>YR807>YR804.Among them, YR806(Suwan1×REC) showed the highest and the most stable yield, showing that “Suwan1×REC” was a hybrid model with good utilization potential.All hybrids showed higher yield than CK at Shilin, Xuanwei, Wenshan and Yanshan experimental sites.The yield performance of each combination was significantly different in different ecological regions, and suitable varieties could be selected according to each ecological region.更多还原