摘要
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。
Taking single cropping late rice Wuyujing 5 and 93 25 as contrast,the variety characters and the high yield population quality indexes were studied. The results showed that: The suitable spikelets and panicles with a yield of 10 500 kg/hm 2 are 4.2×10 8/hm 2 and (3.00~3.45)×10 6/hm 2 thousand respectively; the appropriate time when stems and tillers reach the anticipating number of panicles is one leaf age before critical leaf age period of effective tillering, and the right leaf age of maximum stems and tillers is one leaf age before elongation stege; the leaf area of top stem should be 120~150 cm 2, average dry weight per stem should be more than 2.6 g, and the dry matter should be about 8 250 kg/hm 2.
