早熟机采棉新陆早51号生育期气象因子对群体生育规律的影响  

Influences of meteorological factors on the growth and development rule of early maturing machine-picked cotton Xinluzao No.51

作　　者：马晓梅[1] 李保成[1] 周小凤[1] 董承光[1] 李生秀[1] 王新[1] 

机构地区：[1]农业部西北内陆区棉花生物学与遗传育种重点实验室∕新疆农垦科学院棉花研究所,新疆石河子832000

出　　处：《广东农业科学》2016年第10期21-27,共7页Guangdong Agricultural Sciences

基　　金：新疆兵团科技攻关项目(2011BA001);国家科技支撑计划项目(2014BAD09B01)

摘　　要：分析早熟机采棉品种新陆早51号各器官发生规律及与气象因子的变化规律,探明早熟机采品种的生育特点及规律,为因地制宜大力发展机采棉产业提供理论支持。选择长势均匀的连续10株棉花,对其整个生育期的株高、叶片及蕾铃的发生和脱落等生育进程进行调查。结果发现,新陆早51号在真叶发生过程中,出叶速度受温度及日照时数影响较大;以第3真叶叶展平速度最慢;在第4~10叶出叶速度差异不大,15叶以后,出叶速度稳步上升。株高随叶龄的增加,表现为慢-快-慢的增长过程,在各主茎叶展平期,株高日增长量呈二次曲线。该品种总体结铃表现为中、下部成铃率高,棉株第1果节结铃稳定。This paper analyzed the regularity of organogenesis of early maturing machine-picked cotton Xinluzao No.51 and the effects by meteorological factors,to provide effective theoretical support for the development of machine-picked cotton industry according to local conditions.10 consecutive growing cotton plants were selected after emergence,the plant height,occurrence and shedding of leaves and buds were investigated in the whole growth period.The results showed that the leaf emergence velocity of Xinluzao No.51 was significantly affected by the temperature and sunshine duration in the process of true leaf formation;expanding speed of the third leaf was the slowest;there were no significant differences in the fourth to tenth leaves,leaf emergence velocity steady increased 15 leaves later.The plant height showed a slow - fast - slow growth process with the increase of leaf age,and the growth of plant height was quadratic curve during the period of flat growth.The middle and lower boll rate of the species was high and in the first fruit section,the boll forming was stable.

关 键 词：新陆早51号 机采棉 出叶速度 有效积温 日照时数 棉铃 

分 类 号：S562[农业科学—作物学]