摘要
以抗寒高产为育种目标，以Ｓｐｅａｄｏｒ２为原始材料，在乌鲁木齐市自然条件下，连续３ａ自然选择后，１９９４年冬再次人工扫雪冷冻筛选，１９９５年春季返青后，以返青早、株丛大、长势好、健壮为选择单株的标准，选得１１株，隔离，开放授粉，分株收种，种子等量混合而成品系，再经过多年的系列试验（品比、多点、生产）育成。在乌鲁木齐３ａ平均产鲜、干草比北疆苜蓿（ＣＫ）分别增产２７．６１％和３１．４％，比原始亲本Ｓｐｅａｄｏｒ２分别增产３８．６％和２９．６８％。在阿勒泰等地试验结果类同。抗寒及耐盐性也比北疆苜蓿强。１９９８年经全国牧草品种审定委员会审定通过，正式定名为新牧３号杂花苜蓿。
A breeding program of alfalfa new variety for cold resistance and high yield had been carried out under natural condition of Urumqi.Naturally selected for three years, origin variety Speador 2 was treated by removing snow cover from field during winter in 1994. Total of 11 plants,which were early green up,vigorous and healthy,were selected in 1995.These plants pollinated freely under isolated condition. Seeds of each plant were harvested and new synthetic variety (9501) was composed of equal amount of seeds of each plant.Then the new variety was tested with series trails(varietal trails,multi site trails and production trails).In Urumqi,fresh and dry yields of three years’s average of the new variety were 27.61% and 31.4% higher than that of north of Xinjiang Alfalfa(CK),respectively,and 38.6% and 29.68% higher than that of Speador 2,respectively.Results in Altai were similar.Cold resistance and salt tolerance of the new variety was better than that of north of Xinjiang alfalfa.After nine years breeding,the new variety passed the examination of the Chinese Herbage Cultivar Registration Board in November,1998, Then the new variety was formally named as Xinmu No.3(WTBX Medicago varia Maryn CV.)
出处
《新疆农业大学学报》
CAS
1998年第4期278-286,共9页
Journal of Xinjiang Agricultural University
关键词
苜蓿
育种
品种
种质资源
选育
杂花苜蓿
alfalfa
alfalfa breeding
alfalfa variety
germplasm resources
