摘要
为了筛选一批适于小量播种的品种,并确定其适宜播量,2001～2003年,以13个品种为材料进行了小量播种试验。试验结果表明,在参试品种中,DS1号、临抗1号、冀麦30、鲁麦21和京411适于小量播种。适宜播种量为22.5kg/hm2。试验中,这些品种生长发育正常,有较强的单株分蘖能力,主茎和大分蘖的穗分化能同步完成,均具有较高的单株穗数。在22.5kg/hm2播量条件下,5个品种的产量为6652.5～8537.7kg/hm2。在2002～2003试验年度中,京411、鲁麦21、临抗1号、DS1号的最高产量分别达到10005.0、8704.35、7553.85、7503.75kg/hm2。在高产的基础上,一些品质性状表现也较好。
Some cultivars of winterness wheat have a property of more spikes per plant. In order to study yield effects for these cultivars under conditions of small (sowing) rate, experiments of different (sowing) rate were conducted during 2001～2003. DS 1, Linkang 1, Jimai 30, Lumai 21 and Jing 411 were used as experimental cultivars. The experiments showed that (sowing) rate of 22.5 kg seeds/hm^2 among 6 (sowing) rates of 15.0～(150.0) kg seeds/hm^2 is suitable for little (sowing) amount seeding. These cultivars have a normal performance in growth and development in the experiments. The strong ability of tillering per plant for these cultivars could be expressed in the process of dynamic change of tiller. The process of ear differentiation of main stem and big tiller for the experimental cultivars could synchronize. The number of spike per plant among yield structure for these cultivars is more than that of general cultivars. Under conditions of (sowing) rate of 22.5 kg seeds/hm^2 yield of 6652.5～8537.7 kg/hm^2 could be achieved in 5 cultivars. Best yield of Jing 411, Lumai 21, Linkang 1 and DS 1 comes to 10005.0, 8704.35, 7553.85 and 7503.75 kg/hm^2 respectively during 2002～2003. These cultivars have better (quality) characters on the formation of high yield.
出处
《麦类作物学报》
CAS
CSCD
2004年第3期80-83,共4页
Journal of Triticeae Crops
基金
北京锦绣大地农业股份有限公司资助项目(200119)。
关键词
冬小麦
品种
播种量
小量播种
产量
Winter wheat
Cultivar
Sowing rate of seeds
Precision seeding of small (sowing) amount
Yield
