Research on the Photosynthesis Ability of Pairs polyphylla var. yunnanensis from Different Areas

doi:10.11924/j.issn.1000-6850.casb2020-0828

Abstract

Abstract:

To study the adaptability of Pairs polyphylla var. yunnanensis and provide a theoretical basis for its introduction, planting and resource protection, we investigated the photosynthetic capacity of P. polyphylla var. yunnanensis from different growth areas and different sources from the same area. LI-6800 photosynthesis instrument was used to detect the photosynthetic capacity of the same variety from different areas and different sources from the same area. The results show that the photosynthetic capacity of P. polyphylla var. yunnanensis collected from western Yunnan is higher than that from southeastern Yunnan, and the difference is great. There is no significant difference in photosynthetic rate of P. polyphylla var. yunnanensis among different sources in southeastern Yunnan, but the value is lower than that in western Yunnan. However, the leaf stomatal conductance (Gs), transpiration rate (Tr) and water use efficiency (WUE) of P. polyphylla var. yunnanensis from different habitats are lower than those of local varieties, while the ratio of intercellular CO₂ concentration to environmental CO₂ concentration (Ci/Ca) was higher than that of local varieties, and the photosynthetic capacity of transplanted varieties is lower than that of local varieties. The study shows that the photosynthetic capacity of P. polyphylla var. yunnanensis in western Yunnan is stronger than that in southeastern Yunnan, especially in Yongping County of Dali prefecture. However, the photosynthetic capacity and water use efficiency of the transplanted varieties are lower than those of the local varieties. So in the cultivation of Pairs polyphylla var. yunnanensis, the cultivated local varieties should be selected for artificial expansion.

Key words: Pairs polyphylla var. yunnanensis, geographical origin, resource protection, provenance, photosynthesis, light response curve

CLC Number:

R282.2

Wang Yihao, Li Shichang, Liu Chunlu, Zhao Yanli, Zheng Guowei, Xu Furong. Research on the Photosynthesis Ability of Pairs polyphylla var. yunnanensis from Different Areas[J]. Chinese Agricultural Science Bulletin, 2021, 37(16): 59-64.

Figures/Tables 5

References 28

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种源编号	样品名称	种源地	北纬	东经	海拔/m	年降雨量/mm	最高温度/℃	最低温度/℃
1	鲁甸高杆	丽江市玉龙县	26°49'24''	100°03'41''	2490	955.80	19.39	7.85
2	华坪高杆	丽江市华坪县	26°43'17''	101°27'29''	2570	1040.33	27.32	13.88
3	永平矮杆	大理州永平县	25°29'21''	99°37'26''	2290	962.64	23.34	10.09
4	马龙高杆	曲靖市马龙区	25°33'20''	103°29'50''	2140	975.35	19.71	9.61
5	曲靖高杆	曲靖市麒麟区	25°15'31''	103°47'22''	2410	961.72	20.89	10.21
6	师宗矮杆	曲靖市师宗县	24°45'03''	103°59'24''	1890	1174.34	20.02	10.05
7	宣威矮杆	曲靖市师宗县	24°45'03''	103°59'24''	1890	1174.34	20.02	10.05
8	罗平高杆	曲靖市师宗县	24°45'03''	103°59'24''	1890	1174.34	20.02	10.05
9	罗平矮杆	曲靖市师宗县	24°45'03''	103°59'24''	1890	1174.34	20.02	10.05
10	泸西矮杆	曲靖市师宗县	24°33'32''	103°47'44''	1810	910.44	21.64	10.71

种源编号	样品名称	种源地	北纬	东经	海拔/m	年降雨量/mm	最高温度/℃	最低温度/℃
1	鲁甸高杆	丽江市玉龙县	26°49'24''	100°03'41''	2490	955.80	19.39	7.85
2	华坪高杆	丽江市华坪县	26°43'17''	101°27'29''	2570	1040.33	27.32	13.88
3	永平矮杆	大理州永平县	25°29'21''	99°37'26''	2290	962.64	23.34	10.09
4	马龙高杆	曲靖市马龙区	25°33'20''	103°29'50''	2140	975.35	19.71	9.61
5	曲靖高杆	曲靖市麒麟区	25°15'31''	103°47'22''	2410	961.72	20.89	10.21
6	师宗矮杆	曲靖市师宗县	24°45'03''	103°59'24''	1890	1174.34	20.02	10.05
7	宣威矮杆	曲靖市师宗县	24°45'03''	103°59'24''	1890	1174.34	20.02	10.05
8	罗平高杆	曲靖市师宗县	24°45'03''	103°59'24''	1890	1174.34	20.02	10.05
9	罗平矮杆	曲靖市师宗县	24°45'03''	103°59'24''	1890	1174.34	20.02	10.05
10	泸西矮杆	曲靖市师宗县	24°33'32''	103°47'44''	1810	910.44	21.64	10.71

产地	净光合速率/[μmol/(m²·s)]	气孔导度/[μmol/(m²·s)]	蒸腾速率/[mmolH₂O/(m²·s)]	水分利用效率/(μmolCO₂/mmolH₂O)	Ci/Ca
丽江	3.27±0.60b	0.04±0.01ab	1.78±0.84b	2.12±1.07b	0.56±0.14a
华坪	6.97±0.49a	0.10±0.03d	5.72±1.38a	1.24±0.21b	0.64±0.05a
永平	7.32±0.27a	0.04±0.00a	1.52±0.19c	4.88±0.63a	0.21±0.05b
马龙	1.97±1.00c	0.02±0.00c	1.05±0.18b	1.81±0.69b	0.62±0.10a
曲靖	1.49±0.60c	0.02±0.00bc	1.10±0.19b	1.32±0.42b	0.69±0.08a
师宗	1.38±0.06c	0.02±0.00c	0.86±0.08b	1.63±0.22b	0.67±0.03a

产地	净光合速率/[μmol/(m²·s)]	气孔导度/[μmol/(m²·s)]	蒸腾速率/[mmolH₂O/(m²·s)]	水分利用效率/(μmolCO₂/mmolH₂O)	Ci/Ca
丽江	3.27±0.60b	0.04±0.01ab	1.78±0.84b	2.12±1.07b	0.56±0.14a
华坪	6.97±0.49a	0.10±0.03d	5.72±1.38a	1.24±0.21b	0.64±0.05a
永平	7.32±0.27a	0.04±0.00a	1.52±0.19c	4.88±0.63a	0.21±0.05b
马龙	1.97±1.00c	0.02±0.00c	1.05±0.18b	1.81±0.69b	0.62±0.10a
曲靖	1.49±0.60c	0.02±0.00bc	1.10±0.19b	1.32±0.42b	0.69±0.08a
师宗	1.38±0.06c	0.02±0.00c	0.86±0.08b	1.63±0.22b	0.67±0.03a

种源	净光合速率/[μmol/(m²·s)]	气孔导度/[μmol/(m²·s)]	蒸腾速率/[mmolH₂O/(m²·s)]	水分利用效率/(μmolCO₂/mmolH₂O)	Ci/Ca
师宗矮杆	4.41±2.51a	0.05±0.00a	2.17±0.12a	2.06±1.26a	0.55±0.24a
宣威矮杆	2.88±0.81a	0.04±0.02a	1.51±0.58b	1.97±0.28a	0.64±0.05a
罗平高杆	1.38±0.06b	0.02±0.00b	0.86±0.08c	1.63±0.22a	0.67±0.03a
罗平矮杆	2.22±0.68a	0.03±0.01ab	1.33±0.44b	1.69±0.19a	0.63±0.03a
泸西矮杆	2.43±0.56a	0.04±0.00ab	1.66±0.26ab	1.45±0.11a	0.67±0.03a