摘要
冀麦42是用花药培养而成，在品系鉴定、品比试验、河北省低水肥区域试验和生产试验的6年试验中，连续5年平均产量排第1位，1年排第2位，历年平均产量比对照增产12．1％。其主要的生物学特性是：（1）根系发达。苗期初生根和次生根比对照平阳27分别多1．40条和1．95条，灌浆期次生根比对照多20．5％。（2）穗粒数多。历年在27.0～30.1粒之间比对照平阳27每穗多3．4粒。（3）自控能力强。基本苗在17～29万／亩之间，对产量没有影响。（4）分蘖力强，成穗率高。（5）千粒重稳定。千粒重变异系数cv=4．7534，对照平阳27cv=14．413。（6）抗逆性强。
The wheat cultivar,named Jimai-42,being released through anther culture methods, ranked first in 6 years provincial trials with one year ranked second. The biological properties were as follows: (1) Well developed roots. The number of primary root and secondary roots per plant of Jimai-42 were 1. 40 and 1. 95 more than that of control at seeding stage,respectively,the secondary root number was increased by 20.5% than that of control at grain filling stage. (2)More grain number per spike. Jimai-42 had 27.0~30. 1 grain per spike, being 3. 4 more than that of control on average. (3)More tiller and ripen spike. (4)Stable 1000-grain weight in terms of variation coefficient. (5) Stringer resistance ability to stress.
出处
《河北省科学院学报》
CAS
2000年第1期49-52,共4页
Journal of The Hebei Academy of Sciences
