Evaluation of Morphological and Agronomical Traits in Doubled Haploids of Barley Grown under Two Different Water Regimes and DNA Fingerprinting of Rice
为了研究水分胁迫对大麦生长的影响,我们以大麦双单倍体群体(DH, Steptoe x Morex)为材料,研究在灌水和不灌水两种不同的处理下其主要农艺性状的变化情况。实验采用随机区组设计,设置两次重复,在08-09和09-10年两个连续生长季节进行比较实验。实验在西北农林科技大学农学院实验地进行。2008-2009年,以117个双单倍体个体和双亲共119个大麦品系为材料,调查了在两种不同处理条件下大麦主要农艺性状,包括:株高、小穗数、穗粒数、穗长、穗下颈长,单株产量及千粒重。2009-2010年,由于实验地的限制,只安排了上年度119个体中的58个材料的比较实验,并调查了一下性状:单株分蘖、株高、穗粒数,穗长,穗下颈长,生物产量,收获指数及千粒重。在这两个两个实验,设置试验小区为15米长,1.5米宽,面积22.5平方米,行间距0.25m。播种前,每亩施化肥25公斤/亩(374.98公斤/公顷),氮和磷比为1:1(N:P=1:1)。播种于每年10月10日进行。在每个小区,每个品系种两行,行长1.5m,行宽0.25m,株距1寸。灌溉分两次进行,第一次是播种三个月后,第二次是第二年的三月。灌水量按照本地区小麦的灌水...
【英文摘要】
In order to study the water-stress effect on cultivated spring barley(Hordeum vulgare L.) two different experiments were conducted in the research farm of the Northwest A & F University, college of Agronomy, Y angling, China. The experiments were carried out in two consecutive barley growing seasons. A population of 117 doubled haploid lines developed from Steptoe and Morex (cultivars barley), with their two parents were used for study. Experiments designs were randomized complete block with two replication...