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为了构建优质稻核心种质黄华占及其衍生系统理想模式,指导黄华占及其衍生系统品种的进一步遗传改良,2007年早季和晚季在广州进行大田试验,设计随机区组试验考查黄华占及其衍生品种的综合农艺性状,整合黄华占及其衍生品种在南方稻区省级水稻区试结果,构建黄华占及其衍生系统理想模式。黄华占及其衍生系统的早季产量与每穗总粒数和倒2叶长呈显著正相关,相关系数分别为0.716和0.825;与每株有效穗数呈显著负相关,相关系数为-0.795。早季总粒数因子增加1个单位,产量增加3.17个单位。晚季产量与千粒重呈显著正相关,相关系数为0.734;食味品质与剑叶长、倒2叶长、倒3叶长呈显著正相关,相关系数分别为0.798、0.794和0.831。晚季剑叶宽因子减少1个单位,产量增加2.06个单位。广州地区优质稻核心种质黄华占及其衍生系统理想模式早晚季有所不同,早季应注重选育大穗、长穗、较长上3叶的株(品)系;在晚季应注重较高千粒重和较窄上3叶的株(品)系。
In order to construct the ideal model of high-quality core collection Huanghuazhan and its derivative system, and to guide the further genetic improvement of the varieties of Huanghuazhan and its derivative systems, field trials were conducted in Guangzhou in early and late 2007, and randomized block trials were designed to investigate Huanghuazhan and its derivatives The integrated agronomic traits of the cultivars, the integration of Huang Huazhan and its derivative cultivars in the provincial rice regional test results in the southern rice area, and the construction of the ideal model of Huang Huazhan and its derivative systems. There was a significant positive correlation between the early grain yield per panicle and the second panicle length, with the correlation coefficients of 0.716 and 0.825, respectively. There was a significant negative correlation between the panicle yield per panicle and the panicles per panicle, with a correlation coefficient of -0.795. In the early season, the total grain number increased by 1 unit and the output increased by 3.17 units. There was a significant positive correlation between grain yield and grain weight in late season, and the correlation coefficient was 0.734. The eating quality was positively correlated with the length of flag leaf, the length of 2 leaves and the length of 3 leaves. The correlation coefficients were 0.798, 0.794 and 0.831 respectively. Flag leaf late factor reduced by 1 unit, an increase of 2.06 units. In the early season, the ideal model of high-quality core collection Huanghuazhan and its derivative system in Guangzhou is different from the early-late season. The early-season should focus on the selection of large-spike, long-spike, longer 3-leaf strains; High 1000-grain weight and narrower 3 leaves of the strains (products) Department.