Host-specific influence on early growth and physiological attributes of sandal (Santalum album) grown in farmlands

Balasubramanian, A.; Prasath, C.N. Hari; Radhakrishnan, S.; Sivaprakash, M.

doi:10.22438/jeb/42/4(si)/mrn-1542a

Cited by 7 publications

(5 citation statements)

References 17 publications

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“…In the present comparative study on chlorophyll content of 7 different tree species, the maximum chlorophyll content was recorded in Neolamarckia cadamba with the value of 0.747 mg g -1 (Chlorophyll a), 0.454 mg g -1 (Chlorophyll b) and 1.201 mg g -1 (Total chlorophyll) followed by Melia dubia with total chlorophyll of 1.161 mg g -1 and Tectona grandis with the value of 1.111 mg g -1 (Table 3). The tree species with a maximum production of functional chloroplast perform photosynthesis action for food production, an important role in water development and physiological action (Pate, 2001;Bell and Adams, 2011;Cameron andSeel, 2007 andBalasubramanian et al, 2021). Neolamarckia cadamba, Melia dubia and Tectona grandis recorded the highest biometric observations, chlorophyll, photosynthesis rate and transpiration rate.…”

Section: Resultsmentioning

confidence: 99%

Comparative Growth Performance and Eco-Physiological Response of Tree Species Grown Under Intensive Silvicultural Management Practices

N¹,

A²,

Radhakrishnan³

et al. 2022

MAJ

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The present study aimed to investigate the comparative growth performance and the eco-physiological response of tree species grown under intensive silvicultural management practices (Water management, drip fertigation, pruning, and thinning operations). The tree plantation was established in October, 2017 and maintained at Forest College and Research Institute, Mettupalayam, Coimbatore, India (11° 19’ N and 77°56’ E), with an altitude of 300 m above MSL and mean annual rainfall of 920.5 mm. The study was carried out with 3m x 2m in 7 different tree species namely Neolamarckia cadamba, Acrocarpus fraxinifolius, Grewia tiliaefolia, Melia dubia, Tectona grandis, Swietenia macrophylla, and Dalbergia sissoo. The biometric (Height and Diameter at Breast Height), biochemical (Chlorophyll) and physiological parameters (Photosynthesis rate and Transpiration rate) were measured at different ages under field conditions. The tree species namely Neolamarckia cadamba, Melia dubia, and Tectona grandis recorded the highest biometric observations, chlorophyll, photosynthesis rate, and transpiration rate. It is interesting to note that, even though Tectona grandis is a long rotation tree crop, the tree perform superior growth performance in early stages. Swietenia macrophylla showed poor performance in both the biometric and physiological parameters. The present study recommended that planting fast-growing tree species with short rotation can yield maximum biomasscompared to the long rotation trees if the tree plantation is appropriately managed with intensive silvicultural operations.

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Section: Resultsmentioning

confidence: 99%

Comparative Growth Performance and Eco-Physiological Response of Tree Species Grown Under Intensive Silvicultural Management Practices

N¹,

A²,

Radhakrishnan³

et al. 2022

MAJ

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“…Furthermore, the non-significant (p ≥ 0.05) effect of host plant on both the photosynthetic rate and stomatal conductance of sandalwood suggests species ability to maintain both these processes equally, irrespective of types of host species. Moreover, despite influence of the hosts, sandalwood can adjust activities of chlorophyll, RuBPase, and stomata under the prevailing environmental conditions (Balasubramanian et al, 2021). Furthermore, Rocha et al (2014) showed that the lower content of nitrogen and chlorophyll and the altered RuBPase activities were responsible for decline in the photosynthetic rate of sandalwood.…”

Section: Discussionmentioning

confidence: 99%

Host–parasite interaction: an insight into the growth and physiological responses of sandalwood and associated host species

Verma,

Kumar,

Kumar

et al. 2024

Front. For. Glob. Change

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IntroductionSandalwood (Santalum album L.) is categorized as vulnerable in the IUCN Red list and is also an industrially important tree species valued for its heartwood and aromatic oil. Sandalwood is a semi-root parasite tree that relies on its host plants for its water and nutrient requirements. Therefore, there is need to understand the growth and physiological interactions between sandalwood and its hosts.MethodsSandalwood were planted with ten different host species viz., Syzygium cumini, Punica granatum, Phyllanthus emblica, Melia dubia, Leucaena leucocephala, Dalbergia sissoo, Casuarina equisetifolia, Citrus aurantium, Azadirachta indica and Acacia ampliceps to assess the interactive effect on the change in growth and physiology of both sandalwood and host tree species.ResultsThe findings revealed that sandalwood grown with hosts D. sissoo and C. equisetifolia showed higher growth performance, while among hosts, S. cumini, followed by C. aurantium and L. leucocephala, showed better growth and physiobiochemical traits. The stepwise regression analysis and trait modeling indicated that the six traits, namely, plant height, photosynthetic rate, relative water content, water potential, intercellular CO2 concentration, and total soluble protein, contributed greater growth in the sandalwood, while four traits, namely, water potential, osmotic potential, leaf area, and total soluble protein, contributed greater growth in the host species. The traits modeling study predicted greater growth of sandalwood with the hosts D. sissoo and C. equisetifolia, whereas among host species, prediction revealed greater growth of S. cumini and C. aurantium.DiscussionThe study concluded that host–parasite interaction modulated the growth and physiological processes in both sandalwood and hosts and sandalwood plantations can be successfully developed with the hosts D. sissoo and C. equisetifolia.

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“…Numerous studies have been conducted on different plant species to investigate the effects of salts on photosynthesis pigments and consistently reported that salt stress causes a decrease in photosynthetic rates at low salt concentrations and significant damage to chloroplast structures and photosynthetic machinery at high salt concentrations [ 33 , 34 , 35 , 36 ]. Particularly, enhanced chlorophyll and carotenoids in sandalwood with hosts M. dubia , D. sissoo , and A. indica under the control, as well as under different salinity levels (EC iw 3, EC iw 6, and 9 dS m −1 ), might be due to higher nitrogen supply from the host and higher chlorophyll synthase activity [ 37 ]. Simultaneously, the differential physiological response of sandalwood with distinct host species might be attributed to the host-induced regulations of light utilization efficiency, closure of stomata, and CO 2 levels in chloroplasts [ 38 , 39 ].…”

Section: Discussionmentioning

confidence: 99%

Host Plant Modulated Physio-Biochemical Process Enhances Adaptive Response of Sandalwood (Santalum album L.) under Salinity Stress

Verma,

Kumar,

Kumar

et al. 2024

Plants

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Salinity is one of the most significant abiotic stress that affects the growth and development of high-value tree species, including sandalwood, which can also be managed effectively on saline soils with the help of suitable host species. Therefore, the current investigation was conducted to understand the physiological processes and antioxidant mechanisms in sandalwood along the different salinity gradients to explore the host species that could support sandalwood growth in salt-affected agro-ecosystems. Sandalwood seedlings were grown with ten diverse host species with saline water irrigation gradients (ECiw~3, 6, and 9 dS m−1) and control (ECiw~0.82 dS m−1). Experimental findings indicate a decline in the chlorophyll content (13–33%), relative water content (3–23%), photosynthetic (27–61%) and transpiration rate (23–66%), water and osmotic potential (up to 137%), and ion dynamics (up to 61%) with increasing salinity levels. Conversely, the carotenoid content (23–43%), antioxidant activity (up to 285%), and membrane injury (82–205%) were enhanced with increasing salinity stress. Specifically, among the hosts, Dalbergia sissoo and Melia dubia showed a minimum reduction in chlorophyll content, relative water content, and plant water relation and gas exchange parameters of sandalwood plants. Surprisingly, most of the host tree species maintained K+/Na+ of sandalwood up to moderate water salinity of ECiw~6 dS m−1; however, a further increase in water salinity decreased the K+/Na+ ratio of sandalwood by many-fold. Salinity stress also enhanced the antioxidative enzyme activity, although the maximum increase was noted with host plants M. dubia, followed by D. sissoo and Azadirachta indica. Overall, the investigation concluded that sandalwood with the host D. sissoo can be successfully grown in nurseries using saline irrigation water and, with the host M. dubia, it can be grown using good quality irrigation water.

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Host-specific influence on early growth and physiological attributes of sandal (Santalum album) grown in farmlands

Cited by 7 publications

References 17 publications

Comparative Growth Performance and Eco-Physiological Response of Tree Species Grown Under Intensive Silvicultural Management Practices

Comparative Growth Performance and Eco-Physiological Response of Tree Species Grown Under Intensive Silvicultural Management Practices

Host–parasite interaction: an insight into the growth and physiological responses of sandalwood and associated host species

Host Plant Modulated Physio-Biochemical Process Enhances Adaptive Response of Sandalwood (Santalum album L.) under Salinity Stress

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