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P06—9S是1986年我所用双9—2S为母本,献改B为父本杂交,经5年9代选育而来。经1989～1991年三季观察,P06—9S自然光温条件下,在萍乡具有不育性稳定、不育期较长,育性转换明显、对温度反应不敏感、测配效果好等特点。 1.基本特性 P06—9S株高69.4cm,单株分蘖6.6根,穗长21.47cm,穗型较大,每穗粒数197.4,稃尖红色,紫色柱头发达,柱头外露率75.55％。在萍乡5月份播种,至始穗70天左右。 2.育性特点 P06—9S不育性较为稳定。1989年5月17日播种,幼穗分化期遇低温(6月28日至7月3日:21℃3天,20℃2天,23℃1天),7月21日始穗,P06—9S表现稳定不育,没有出现异常变化;1991年对P06—9S的禾苗进行13小时人工遮光处理,用W6154S作对照,(7月25日开始,每天夏令时7:00～20:00),33天后,抽穗镜检花粉,
P06-9S is 1986, I used double 9-2S as the mother, offer the change of B for the male parent, after 5 years of 9 generations of breeding. After the observation of the three seasons from 1989 to 1991, under the natural light and temperature conditions of P06-9S, it has the characteristics of stable sterility, longer sterile period, obvious fertility transition, insensitivity to temperature and good measuring effect. 1. Basic characteristics P06-9S plant height 69.4cm, 6.6 tillers per plant, spike length 21.47cm, larger panicles per panicle 197.4, cusp red, purple stigma developed stigma exposed rate of 75.55%. May be planted in Pingxiang in May to about 70 days before spike. Fertility characteristics P06-9S sterility is more stable. May 17, 1989 sowing, panicle differentiation encountered low temperature (June 28 to July 3: 21 ℃ 3 days, 20 ℃ 2 days, 23 ℃ 1 day), July 21 start spike, P06- 9S showed stable and sterile, no abnormal changes; 1991 P06-9S grasses for 13 hours of artificial shading treatment with W6154S as a control (July 25, daylight saving time 7: 00 ~ 20: 00) 33 days later, heading pollen inspection,