应用分期播种法分析乌贡一号感温特性

来源 :上海农业学报 | 被引量 : 0次 | 上传用户:liuzixing0210
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
试验研究表明,乌贡一号自播种至齐穗期及全生育期的长短,在本市栽培时随种植季节的不同而变化,且变幅较大,有效积温的变幅则较小,其高温出穗促进率达30%左右,表现为感温性强的早熟中种稻。该品种分率期各叶片出生所需有效积温较少,约为50~60℃,幼穗分化期各叶出生所需有效积温较多,达100℃以上。乌贡一号在本市从3月下旬至7月中旬播种均可正常成熟,随播期的推迟,其全生育期、所需积温、总叶龄均呈递减趋势;而经济性状也有一定差异,以6月11日至6月25日期间播种者经济性状发展较好,产量较高。本研究为该品种选择适宜推广地区、栽培季节等方面提供了依据。 The results of the experiment showed that the length of Ungogong I from seeding to full heading and full growth period varied with the planting season in this Municipality, and the variation range was larger and the amplitude of effective accumulated temperature was smaller High temperature out of the ear to promote the rate of 30%, manifested as strong sense of temperature in early maturing rice. The effective accumulated temperature needed for the leaves of the variety during the rate-dividing period was less, about 50-60 ℃. The effective accumulated temperature needed for the birth of leaves at the panicle-spike stage was more than 100 ℃. The Ugogong-1 sown in the city from the end of March to the middle of July all can mature normally. With the postponement of the sowing date, the whole growth period, the required accumulated temperature and the total leaf age all showed a decreasing trend, and the economic traits also had some differences , The economic traits of planters developed well and output was high from June 11 to June 25. This study provided the basis for the selection of suitable varieties for the region, planting season and so on.
其他文献
会议
小麦地套种“儿菜”技术“儿菜”产量高、品质细嫩、吃法多样。上市时间在二月中旬至4月上旬,是度春淡的好品种,但生长期长达5个月左右,占地时间长。如粮区旱地净作只能再种一季粮
会议
会议
今天,很高兴有机会来报社了解情况并与大家座谈。我在北京市工作的时间不长,但北京日报是每天必看的,工作中与报社的不少同志也有过接触,报社对我也给予了充分的报道。刚才
小时候,听过一个故事.rn这个故事发生在一个古老的村庄.和你听过的所有故事一样,村里的人日出而作,日落而息,过着平凡幸福的生活.但不同的是,村里有一个奇怪的习俗,每家的孩
外婆居于我记忆深处已久,只是时光尘封不住深情,每每看到阳光中尘埃如舞,我便念起她昔日的眉眼.rn1958年,外婆15岁,是大家闺秀,她不肯嫁给财主,只身跟着外公背井离乡闯关东来
1996海峡两岸广播事业交流研讨会于5月26日至27日在北京举行。 广电部副部长兼中央人民广播电台台长同向荣(右)、中央人民广播电台常务副台长安景林(左)与台湾广播代表团团
[一]rn“天成地全.”rn上元灯节,书生轻合折扇,念罢笑曰:“务观愚,望蕙仙不吝赐教.”rn这谜,绕了一甲子,终是留给他一生.rn非不知,实乃天人永隔,独出谜人难再闻此解耳.