谷子不同育成品种冬油菜茬复种下农艺性状及产量比较分析

Comparative Analysis of Agronomic Characteristics and Yields of Winter Rape Stubble with Different Varieties of Millet

为筛选出适宜天水干旱地区冬油菜茬复种的理想谷子品种,增加当地农业生产效益,在白菜型冬油菜作收获后,以13个来自我国不同生态区的谷子育成品种为材料,采用随机区组设计,在天水干旱区复种谷子,测定了其主要农艺性状和产量性状,并进行了比较分析。结果表明,陇谷12号生育期适中,主要性状良好,抗倒伏能力强,产量最高,为4257.58 kg/hm^(2),较对照品种陇谷8号增产560.61 kg/hm^(2),增产率15.16%。同谷30号生育期适中,籽粒为红色,折合产量居第2位,为4239.90 kg/hm^(2),较对照品种增产542.93 kg/hm^(2),增产率14.69%。赤谷17折合产量居第3位,为4202.02 kg/hm^(2),较对照品种增产505.05 kg/hm^(2),增产率13.66%。综合比较,陇谷12号、赤谷17适合在天水地区冬油菜收获后复种。

In order to select a perfect millet variety for intercropping with winter rapeseed in the arid Tianshui region and increase local agricultural productivity,13 millet breeding varieties were used as materials which came from different ecological regions in China.A randomized block design was employed to intercrop millet in the Tianshui arid area.The main agronomic and yield traits were measured and compared.The results showed that Longgu12 had a suitable growth period,good main traits,strong lodging resistance,and the highest yield of 4257.58 kg/hm^(2),which was an increase of 560.61 kg/hm^(2)or 15.16%compared to the control variety Longgu8.Tonggu30 had a moderate growth period,red grains,and the second highest equivalent yield of 4239.90 kg/hm^(2),which was an increase of 542.93 kg/hm^(2)or 14.69%compared to the control variety.Chigu17 ranked third in equivalent yield with 4202.02 kg/hm^(2),which was an increase of 505.05 kg/hm^(2)or 13.66%compared to the control variety.Overall,Longgu12 and Chigu17 were suitable for intercropping after winter rapeseed harvest in the Tianshui region.