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采用多点试验,对白菜型冬油菜在北方地区的越冬率、生育期及产量进行比较,以分析其适应性。结果表明,不同冬油菜品种越冬率存在较大差异,依次表现为陇油6号>陇油7号>陇油8号>陇油9号>天油2号(CK)>天油5号>天油8号>天油7号,其中陇油6号和陇油7号越冬率最高,分别为86.40%和85.53%,明显高于CK,而天油7号与天油8号的越冬率仅分别为54.07%和55.50%,均低于CK;同一参试品种在不同试点生育期差异较大,如陇油6号在秦王川试点,生育期长达300 d,而在和田,其生育期仅为251 d,较秦王川试点提前49 d;不同冬油菜品种间生育期差异也较大,在秦王川,陇油6号和陇油7号的生育期最长,为300 d,陇油8号为295 d,而其它各参试品种的生育期均为290 d,较陇油6号缩短了10 d;在不同试点,冬油菜农艺性状和含油率均存在较大差异。综合分析,陇油8号、陇油7号、陇油6号的丰产性和稳定性最好,其次为陇油9号;不同生态区区域适宜种植的冬油菜品种也有差异,其中陇油6号、陇油7号可成为北京及周边地区、新疆乌鲁木齐以西地区、甘肃中北部与河西走廊以及陕西靖边周边地区的主栽品种,而新疆乌鲁木齐以南地区应以陇油8号与陇油9号为主栽品种,天油2号、天油5号及天油8号也适宜在该地区种植。
The multi-point test was used to compare the overwintering rate, growth period and yield of Brassica campestris in northern region in order to analyze its adaptability. The results showed that the overwintering rates of different winter oilseed rape varieties were significantly different, which showed as follows: Longyou 6> Longyou 7> Longyou 8> Longyou 9> Tianyou 2 (CK)> Tianyou 5> Tianyou 8> Tianyou 7, of which Longyou 6 and Longyou 7 had the highest overwintering rates, which were 86.40% and 85.53% respectively, significantly higher than that of CK, while the overwintering rates of Tianyou 7 and Tianyou 8 Only 54.07% and 55.50% respectively, which were lower than CK. The same test varieties had different developmental periods in different experimental periods. For example, Longyou No.6 was tested in Qinwangchuan for 300 days, while in Hetian, its fertility Period of only 251 d, compared with Qin Wang Chuan pilot 49 d ahead of schedule; different winter rapeseed cultivars also have significant differences in the growth period, the longest growing period in Qinwangchuan, Longyou 6 and Longyou 7 is 300 d, Long Oil 8 was 295 d, while the other test varieties all had 290 days of growth, which was shorter than Longyou 6 by 10 d. There were significant differences in agronomic characters and oil content of winter rape at different experimental sites. Comprehensive analysis showed that the yield and stability of Longyou 8, Longyou 7 and Longyou 6 were the best, followed by Longyou 9, and the varieties of winter rapeseed suitable for planting in different ecological regions were also different, among which Longyou 6 Longyou 7 could be the main cultivars in Beijing and the surrounding areas, west of Urumqi in Xinjiang, north-central Gansu and Hexi Corridor and the surrounding areas of Jingbian in Shaanxi Province. However, the area south of Urumqi in Xinjiang should be Longyou 8 and Longyou 9 as the main varieties, Tian You 2, Tian You 5 and Tian You 8 are also suitable for planting in the area.