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| 打顶后涂抹生长素对长绒棉生长和蕾铃脱落的影响 | |
| 引用本文： | 白灯莎·买买提艾力,张士荣,彭华,依不拉音,吾甫尔,冯固.打顶后涂抹生长素对长绒棉生长和蕾铃脱落的影响[J].核农学报,2007,21(2):177-180,185. |
| 作者姓名： | 白灯莎·买买提艾力 张士荣 彭华 依不拉音 吾甫尔 冯固 |
| 作者单位： | 1. 新疆农科院核技术生物技术研究所,新疆,乌鲁木齐,830091 2. 中国农业大学资源与环境学院,北京,100094 3. 新疆农科院吐鲁番长绒棉研究所,新疆,吐鲁番,838000 |
| 基金项目： | 国家自然科学基金 , 中国科学院新疆生态地理所所长基金 , 国家引进国际先进农业科学技术计划(948计划) |
| 摘 要： | 与传统打顶处理相比,打顶后涂抹浓度为3×10-2mmol.L-1的α-萘乙酸(NAA),促进了上部植株的生长,植株上部生物量、成铃率分别比传统处理提高148.6%和96.6%,空果枝数降低52.6%,蕾铃脱落率降低43.1%;单株籽棉产量增加了26.4%。上述结果说明,生产中普遍存在的中后期“早衰”和“中空”现象与棉花打顶导致顶端优势丧失有关,打顶后涂抹NAA使植株的顶端优势得到一定恢复。 |
| 关 键 词： | 打顶 NAA 长绒棉 蕾铃脱落 籽棉产量 |
| 文章编号： | 1000-8551（2007）02-177-04 |
| 收稿时间： | 2009-12-31 |
| 修稿时间： | 2006-06-15 |
EFFECTS OF SMEARING NAA ON GROWTH AND FRUIT ABSCISSION OF COTTON(Gossypium barbadense L.) PLANTS AFTER DECAPITATION |
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| BAI Deng-sha,ZHANG Shi-rong,PENG Hua,Yi-bulayin,WU Bu-er,FENG Gu.EFFECTS OF SMEARING NAA ON GROWTH AND FRUIT ABSCISSION OF COTTON(Gossypium barbadense L.) PLANTS AFTER DECAPITATION[J].Acta Agriculturae Nucleatae Sinica,2007,21(2):177-180,185. | |
| Authors: | BAI Deng-sha ZHANG Shi-rong PENG Hua Yi-bulayin WU Bu-er FENG Gu |
| Institution: | 1. Institute of Nuclear Technology and Biotechnology, Xinjiang Academy of Agricultural Science, Urumqi, Xinjiang 830091 ; 2. China Agricultural University, Beijing 100094; 3. Tulufan Institute of Cotton Science, Xinfiang Academy of Agricultural Science, Tulufan, Xinjiang 838000 |
| Abstract: | Compared with the conventional decapitation practice,smearing with 3×10~(-2) mmol·L~(-1) NAA(α-Naphthylacetic acid) after decapitation can increase biomass of the upper part of cotton plants by recovering of apical predominance,but had no significant effect on the middle-low part of plants.NAA smearing enhanced the weight of boll and boll retention rate by 148.6 % and 96.6%,respectively;NAA smearing decrease the number of empty branches and fruit abscission rate by 52.6% and 43.1%,which resulted in an increase in seed cotton yield per plant by 26.4 %.It was suggested that the phenomena of `premature senility' and `lack of bolls in middle part' during the cotton growth in Xinjiang may be partly attributed to the loss of apical predominance caused by decapitating. |
| Keywords: | decapitation NAA cotton(Gossypium barbadense L ) fruit abscission rate cotton yield |
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