干旱胁迫下不同砧木对酿酒葡萄光合特性及叶绿素荧光参数的影响

发布时间：2018-10-05 13:07

【摘要】：本试验研究了盆栽嫁接葡萄苗和自根葡萄苗在干旱胁迫下光合特性、叶绿素含量及叶绿素荧光特征的变化,探讨在干旱胁迫下砧木与葡萄接穗光合特性、叶绿素含量及叶绿素荧光特征的关系。试验主要结果如下:1.随干旱胁迫程度的加深,不同砧木嫁接组合葡萄的净光合速率、气孔导度和蒸腾速率均降低,表现为赤霞珠/贝达赤霞珠/5BB赤霞珠/SO_4赤霞珠自根苗、梅鹿辄/贝达梅鹿辄/5BB梅鹿辄/SO_4梅鹿辄自根苗、西拉/贝达西拉/5BB西拉/SO_4西拉自根苗。而细胞间隙CO2浓度升高,表现为赤霞珠/贝达赤霞珠/5BB赤霞珠/SO_4赤霞珠自根苗、梅鹿辄/贝达梅鹿辄/5BB梅鹿辄/SO_4梅鹿辄自根苗、西拉/贝达西拉/5BB西拉/SO_4西拉自根苗。2.干旱胁迫下,所有供试葡萄光合速率日变化均呈现双峰曲线,在14:00净光合速率出现明显的"午休"现象,而砧木能明显提高接穗此时的净光合速率,从而缓和葡萄的光合"午休"现象。3.随干旱胁迫程度的加深,不同砧木嫁接组合葡萄的总叶绿素含量和类胡萝卜素含量均降低,表现为赤霞珠/贝达赤霞珠/5BB赤霞珠/SO_4赤霞珠自根苗、梅鹿辄/贝达梅鹿辄/5BB梅鹿辄/SO_4梅鹿辄自根苗、西拉/贝达西拉/5BB西拉/SO_4西拉自根苗。4.随干旱胁迫程度的加深,不同砧木嫁接组合葡萄的Fv/Fm、qP、Yield值均降低,表现为赤霞珠/贝达赤霞珠/5BB赤霞珠/SO_4赤霞珠自根苗、梅鹿辄/贝达梅鹿辄/5BB梅鹿辄/SO_4梅鹿辄自根苗、西拉/贝达西拉/5BB西拉/SO_4西拉自根苗。
[Abstract]:The effects of drought stress on photosynthetic characteristics, chlorophyll content and chlorophyll fluorescence of grafted grape seedlings and self-root grape seedlings were studied in this experiment. The photosynthetic characteristics of rootstocks and grape scions were studied under drought stress. Relationship between chlorophyll content and chlorophyll fluorescence characteristics. The main results of the experiment are as follows: 1. With the deepening of drought stress, the net photosynthetic rate, stomatal conductance and transpiration rate of grape grafted with different rootstocks decreased, which was shown as Cabernet Sauvignon / Beida Cabernet Sauvignon / 5BB Cabernet Sauvignon / so _ 4 Cabernet Sauvignon Seedling. Merlot / Beida Merlot / 5BB Merlot / However, the intercellular CO2 concentration increased, showing that Cabernet Sauvignon / Beida Cabernet Sauvignon / 5BB Cabernet Sauvignon / so _ 4 Cabernet Sauvignon self-rooted seedlings, Merlot / Beida Merlot / 5BB Merlot / so _ 4 Merlot self-rooting seedlings, Silas / Bedacilla / 5BB Silas / so _ 4-Sierra self-rooted seedlings. Under drought stress, the diurnal variation of photosynthesis rate of all the tested grapes showed a bimodal curve. At 14:00, the net photosynthetic rate of grape appeared obvious "midday depression" phenomenon, while the rootstock could obviously increase the net photosynthetic rate of the scion at the same time. So as to ease the grape photosynthetic "midday depression" phenomenon. 3. With the deepening of drought stress, the total chlorophyll content and carotenoid content of grape grafted with different rootstocks decreased, which was shown as Cabernet Sauvignon / Beida Cabernet Sauvignon / 5BB Cabernet Sauvignon / so _ 4 Cabernet Sauvignon Seedling. Merlot / Beida Merlot / 5BB Merlot / With the deepening of drought stress, the Fv/Fm,qP,Yield value of grape grafted with different rootstocks decreased, which showed that Cabernet Sauvignon / Beida Cabernet Sauvignon / 5BB Cabernet Sauvignon / so _ 4 Cabernet Sauvignon self-rooted seedlings, Merlot / Beida Merlot / 5BB Merlot / so _ 4 Merlot self-rooted seedlings, Silla / Bedasila / 5BB Silla / so _ 4 Sid _ 4.
【学位授予单位】：内蒙古农业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：S663.1

【参考文献】

相关期刊论文 前10条

1 蔡丽艳;;植物形态结构与抗旱性[J];内蒙古林业调查设计;2016年06期

2 程媛媛;苏孝良;;植物抗旱机制研究进展[J];贵州师范大学学报(自然科学版);2014年01期

3 潘昕;邱权;李吉跃;苏艳;何茜;;干旱胁迫对两种速生树种叶绿素含量的影响[J];桉树科技;2013年03期

4 黄秦军;黄国伟;丁昌俊;张新叶;;美洲黑杨杂种不同生长势无性系光合特征[J];林业科学;2013年03期

5 裴斌;张光灿;张淑勇;吴芹;徐志强;徐萍;;土壤干旱胁迫对沙棘叶片光合作用和抗氧化酶活性的影响[J];生态学报;2013年05期

6 郑玲;程彦伟;;六个洛阳牡丹品种解剖结构与抗旱性关系研究[J];北方园艺;2013年01期

7 柏新富;卜庆梅;谭永芹;朱建军;刘林德;;NaCl对渗透胁迫下三角叶滨藜光合作用和水分状况的调节[J];植物学报;2012年05期

8 朱文旭;张会慧;许楠;王鹏;王师丹;牟世南;梁明;孙广玉;;间作对桑树和谷子生长和光合日变化的影响[J];应用生态学报;2012年07期

9 马玉坤;贾永芳;马静芳;王旺田;;不同砧木对红地球葡萄光合日变化的影响[J];江苏农业学报;2012年03期

10 胡营;楚海家;李建强;;4个花苜蓿居群叶片解剖结构特征及其可塑性对不同水分处理的响应[J];植物科学学报;2011年02期

相关硕士学位论文 前2条

1 孙茜;四种葡萄砧木抗旱、耐盐碱性的比较研究[D];宁夏大学;2014年

2 王美军;砧木对葡萄生长结果及生理生化影响的研究[D];湖南农业大学;2007年

，

本文编号：2253506