| 柠条锦鸡儿种子生产和活力对模拟降雨量改变的响应 |
| 陈丽茹1; 李秧秧2
|
| 2018
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发表期刊 | 西北林学院学报
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卷号 | 33期号:6页码:20-25 |
摘要 | 利用降雨操纵试验(自然降雨、降雨增加45%和减少50% ),研究了在降雨量改变第3年柠
条锦鸡儿种子生产和活力对模拟降雨量改变的响应。结果表明,柠条锦鸡儿生长对增水和干旱均
有显著响应;柠条锦鸡儿开花结荚和种子性状对增水无显著响应,但增水处理的单位枝长结荚数和
结荚率、单位枝长种子数量、单粒种子重量及种子活力显著高于干旱处理。干旱显著降低了单位枝
长种子数量、产量和种子活力(种子萌发后出苗率、株高和幼苗含氮量显著降低),表明干旱对种子
生产的影响大于增水处理,提示生产上应尽可能用正常降雨年份的种子进行幼苗培育。 |
其他摘要 | Using precipitation manipulation experiments ( natural precipitation , +45% by irrigation and
-50%by water removal
),
the responses of seed production and vigor in Caragana korshinskii to precipita -
tion variation were studied during the third year of the experiment.The results indicated that the growth of
C . korshinskii had obvious responses to both irrigation and drought.The flowering , pod - setting and seed
traits showed no responses to irrigation , but the irrigated treatment had more pods per branch length and
pod -
setting ratio ,
seeds per branch length , single - seed weight and seed vigor than those of dry treatment.
Meanwhile , drought significantly decreased seed quantity , production and vigor ( manifested by lower ger -
mination , seedling height and plant N content during the germination experiment ), indicating the effects of
drought on seed production was more serious than irrigation.These results suggested that the seeds pro -
duced under normal precipitation year should be used in seedling cultivation. |
关键词 | 柠条锦鸡儿
种子生产
种子活力
降雨改变
|
收录类别 | 中文核心期刊要目总览
|
语种 | 中文
|
文献类型 | 期刊论文
|
条目标识符 | sbir.nwafu.edu.cn/handle/361005/10331
|
专题 | 水保所知识产出(1956---)
|
作者单位 | 1.西北农林科技大学林学院 2.西北农林科技大学水土保持研究所
|
推荐引用方式 GB/T 7714 |
陈丽茹,李秧秧. 柠条锦鸡儿种子生产和活力对模拟降雨量改变的响应[J]. 西北林学院学报,2018,33(6):20-25.
|
APA |
陈丽茹,&李秧秧.(2018).柠条锦鸡儿种子生产和活力对模拟降雨量改变的响应.西北林学院学报,33(6),20-25.
|
MLA |
陈丽茹,et al."柠条锦鸡儿种子生产和活力对模拟降雨量改变的响应".西北林学院学报 33.6(2018):20-25.
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文件名:
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柠条锦鸡儿种子生产和活力对模拟降雨量改变的响应_陈丽茹.pdf
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格式:
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Adobe PDF
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