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一、观察的方法及经过与试品种为70201中熟品系.1978年5月23日播种,行距1.5尺,株距7寸左右.5月29日出苗,每亩留苗6000株,选定5株为观察材料.现蕾分四期记载:幼蕾发育饱满,比小麦粒稍大,花萼完全包裹花瓣为第一期;蕾发育完全,蕾前端发育已成弯形,蕾长约2厘米左右,花萼仍完全包裹花瓣为第二期;蕾色黄绿、花萼开始纵裂为二片,从张开的裂缝中看到花瓣为第三期;花萼纵裂3—4片,花瓣伸出花萼2毫米以上为第四期.当花萼裂为5片并展开,旗瓣上翘,翼瓣左右平展为开
First, the observed method and after the trial varieties of 70,201 in the mature line. May 23, 1978 sowing, row spacing of 1.5 feet, spacing of about 7 inches. May 29 emergence, seedlings per acre 6000, selected 5 For the observation of material.Laying recorded in four phases: young buds full, slightly larger than the wheat, the calyx completely wrapped petals for the first phase; bud development completely bud front development has become curved, bud length of about 2 cm, The calyx is still completely wrapped petals for the second phase; yellow and green buds, calyx began to split longitudinal two, from the cracks in the open petals seen for the third period; calyx longitudinal lozenges 3-4, petals extending calyx 2 Mm above for the fourth period.When the calyx cracked 5 and expand, flag upturned, flat flap around the open