Comprehensive Evaluation of Growth, Physiological and Nutrient Accumulation Characteristics of Seven Lauraceae Species

doi:10.11924/j.issn.1000-6850.casb2025-0267

Abstract

Abstract:

The aim is to better understand the ecological characteristics of Lauraceae plants, select the species suitable for cultivation and popularization in southwest Guangxi. In this study, seeds of 7 species of Lauraceae from 3 genera (Machilus, Beilschmiedia, Cinnamomum) were collected, and the growth, physiological and nutrient accumulation characteristics of their 4-year-old plants were studied and evaluated after seeding in Nanning. The results showed that: (1) the plant height and ground diameter of B. yaanica and B. fordii were the largest, and the seedling elongation and thickening of Beilschmiedia were better than those of Machilus and Cinnamomum, while the height-diameter ratio of Machilus was smaller and the overall growth was more balanced. (2) M. thunbergii had the largest single leaf area and the strongest instantaneous photosynthesis. The overall leaf growth and photosynthetic characteristics of Machilus were better than those of Beilschmiedia and Cinnamomum (the overall antioxidant enzyme activity of the seedlings was higher). The content of MDA (membrane peroxidation degree) was lower in the Beilschmiedia seedlings. (3) The overall nitrogen, phosphorus and potassium nutrient accumulation of Machilus spp. seedlings was better. M. rufipes was limited by nitrogen, M. thunbergii, M. minkweiensis and B. yaanica were limited by phosphorus, but other species were not limited by nitrogen, phosphorus and potassium. (4) Through membership degree analysis, it can be seen that M. thunbergii had the best comprehensive performance (average membership of 0.625), followed by B. yaanica and M. minkweiensis. C. saxatile and M. rufipes had the worst comprehensive performance (average membership of 0.302 and 0.292, respectively). In summary, M. thunbergii is most suitable for the promotion in Nanning, and attention should be paid to the supplement of nitrogen and phosphorus elements and the guarantee of water and fertilizer conditions during cultivation, followed by B. yaanica and M. minkweiensis, while the cultivation conditions and cultivation methods of C. saxatile and M. rufipes need to be optimized.

Key words: Lauraceae species, growth and physiological characteristics, nutrient accumulation characteristics, correlation analysis, membership analysis, comprehensive evaluation

LI Ting, PENG Chuyun, MA Daocheng, GAN Wen, YANG Mei, LONG Min. Comprehensive Evaluation of Growth, Physiological and Nutrient Accumulation Characteristics of Seven Lauraceae Species[J]. Chinese Agricultural Science Bulletin, 2025, 41(34): 30-38.

Figures/Tables 6

References 51

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植物种类	株高/cm	地径/mm	高径比
红楠	58.66±7.71Ed	13.04±2.39BCbcd	4.58±0.75Dd
闽桂润楠	82.56±18.00Dc	12.05±1.40BCDcde	6.81±1.01BCb
红梗润楠	61.40±12.84Ed	10.55±2.56De	5.96±1.12Cc
广东琼楠	121.74±35.51ABa	17.35±4.52Aa	7.10±1.53BCb
雅安琼楠	132.79±21.37Aa	14.29±1.02Bb	9.29±1.26Aa
滇琼楠	99.59±11.17CDb	13.72±1.89BCbc	7.37±1.12Bb
岩樟	106.10±12.04BCb	11.44±1.04CDde	9.33±1.29Aa

植物种类	株高/cm	地径/mm	高径比
红楠	58.66±7.71Ed	13.04±2.39BCbcd	4.58±0.75Dd
闽桂润楠	82.56±18.00Dc	12.05±1.40BCDcde	6.81±1.01BCb
红梗润楠	61.40±12.84Ed	10.55±2.56De	5.96±1.12Cc
广东琼楠	121.74±35.51ABa	17.35±4.52Aa	7.10±1.53BCb
雅安琼楠	132.79±21.37Aa	14.29±1.02Bb	9.29±1.26Aa
滇琼楠	99.59±11.17CDb	13.72±1.89BCbc	7.37±1.12Bb
岩樟	106.10±12.04BCb	11.44±1.04CDde	9.33±1.29Aa

植物种类	单叶面积/mm²	SPAD	Pn/[μmol CO₂/(m²·s)]	Gs/[mol H₂O/(m²·s)]	Ci/(μmol CO₂/mol)	Tr/[mmol H₂O/(m²·s)]
红楠	5441.93±246.07Aa	37.83±3.18Bb	14.51±1.00Aa	0.20±0.03Aa	284.11±10.53Aa	5.99±0.79Aa
闽桂润楠	2747.47±862.86BCc	40.35±5.42Bb	5.70±2.93Cc	0.19±0.33Aa	139.40±30.40Bb	1.70±0.60Ccd
红梗润楠	1568.72±232.87Dde	38.87±5.82Bb	10.57±1.86Bb	0.12±0.03Aa	254.94±20.22Aa	3.37±0.82Bb
广东琼楠	2698.96±366.02BCc	38.06±1.57Bb	6.18±0.87Cc	0.08±0.02Aa	274.23±12.03Aa	2.16±0.54Cc
雅安琼楠	2117.98±387.42CDcd	50.87±5.92Aa	7.79±2.13BCc	0.08±0.03Aa	248.52±38.79Aa	2.26±0.69BCc
滇琼楠	1321.05±192.24De	57.22±8.53Aa	5.76±1.29Cc	0.06±0.01Aa	262.35±24.60Aa	1.56±0.33Ccd
岩樟	3598.55±1046.32Bb	51.38±5.86Aa	5.55±2.42Cc	0.04±0.03Aa	160.41±62.20Bb	1.14±0.69Cd

植物种类	单叶面积/mm²	SPAD	Pn/[μmol CO₂/(m²·s)]	Gs/[mol H₂O/(m²·s)]	Ci/(μmol CO₂/mol)	Tr/[mmol H₂O/(m²·s)]
红楠	5441.93±246.07Aa	37.83±3.18Bb	14.51±1.00Aa	0.20±0.03Aa	284.11±10.53Aa	5.99±0.79Aa
闽桂润楠	2747.47±862.86BCc	40.35±5.42Bb	5.70±2.93Cc	0.19±0.33Aa	139.40±30.40Bb	1.70±0.60Ccd
红梗润楠	1568.72±232.87Dde	38.87±5.82Bb	10.57±1.86Bb	0.12±0.03Aa	254.94±20.22Aa	3.37±0.82Bb
广东琼楠	2698.96±366.02BCc	38.06±1.57Bb	6.18±0.87Cc	0.08±0.02Aa	274.23±12.03Aa	2.16±0.54Cc
雅安琼楠	2117.98±387.42CDcd	50.87±5.92Aa	7.79±2.13BCc	0.08±0.03Aa	248.52±38.79Aa	2.26±0.69BCc
滇琼楠	1321.05±192.24De	57.22±8.53Aa	5.76±1.29Cc	0.06±0.01Aa	262.35±24.60Aa	1.56±0.33Ccd
岩樟	3598.55±1046.32Bb	51.38±5.86Aa	5.55±2.42Cc	0.04±0.03Aa	160.41±62.20Bb	1.14±0.69Cd

植物种类	MDA/(μmol/g)	SOD/(U/g)	POD/[U/(min·g)]	PPO/[U/(min·g)]
红楠	0.009±0.001ABab	478.02±5.34Aa	146.83±45.55Bb	18.45±4.46Bb
闽桂润楠	0.006±0.001BCbc	421.34±4.11Bb	141.17±6.33Bb	112.83±6.46Bb
红梗润楠	0.010±0.002ABa	488.36±7.03Aa	151.83±6.90Bb	15.83±11.69Bb
广东琼楠	0.005±0.001BCbc	294.64±15.35Ee	79.67±6.79Cc	107.45±6.64Bb
雅安琼楠	0.010±0.004ABa	393.68±11.51Cc	209.83±4.25Aa	105.93±10.91Bb
滇琼楠	0.003±0.001Cc	331.67±12.34Dd	15.67±4.93Dd	5.44±0.98Bb
岩樟	0.011±0.003Aa	253.24±5.46Ff	24.83±9.25Dd	1512.72±229.44Aa