论文部分内容阅读
试验以单晚稻武育粳 5 号和 9325 为对照,研究武运粳 7 号的特征特性和高产群体质量指标。结果表明: 武运粳 7 号单产 10 500 kg/hm 2 的适宜颖花量为 4.2×108 /hm 2 以上,适宜穗数(3.00~3.45)×106 /hm 2 ,在有效分蘖临界叶龄期前 1 个叶龄够苗,在拔节前 1 张叶片抽出期间达峰值苗。顶上 3 张功能叶叶面积为 120~150 cm 2 ,抽穗期平均单茎茎鞘干重为 2.6 g 以上,灌浆期干物质积累 8 250 k g/hm 2 左右。
The test was conducted on the characteristics of Wuyunjing 7 and the quality indicators of high-yielding population with Wuyuejing 5 and 93-25 of single late rice as control. The results showed that the suitable spikelet yield of Wuyunjing 7 with a yield of 10 500 kg / hm 2 was 4.2 × 108 / hm 2 and the suitable spike number was 3.00 ~ 3.45 × 106 / hm 2. Effective tillering critical leaf age before a leaf age sufficient seedlings, in the pre-jointing a leaf extract peak seedlings. The top three leaf functional areas were 120-150 cm 2, the average dry weight of stems and sheaths was 2.6 g at heading stage, and the dry matter accumulation at filling stage was 8 250 k g / hm 2.