Depletion of stem non-structural carbohydrates supports release of lateral branches from apical control in Quercus mongolica seedlings

Han, Xiaoyi; Liang, Xinming; Ma, Sujuan; Wang, Yu; Lu, Xiujun

doi:10.1007/s00468-022-02313-0

Cited by 2 publications

(1 citation statement)

References 67 publications

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“…Compared with reproduction by planting after clearcutting, particularly in the context of drought, water shortage, and serious land deserti cation, coppicing regeneration can effectively prevent secondary deserti cation and recurrence of soil erosion [17][18][19][20] . Coppicing can release apical dominance and directly or indirectly regulate the synthesis, accumulation and allocation of hormones and nutrients 21,22 . However, the sprouting effectiveness of coppiced tree is affected by many factors 23 , among which the stubble height is one of the controllable factors.…”

Section: Introductionmentioning

confidence: 99%

Response patterns of root sprouting and the clonal dispersal ability of Hippophae rhamnoides ssp. sinensis in relation to stubble height and its nutrient accumulation and allocation strategy

Li,

Ji,

Nie

et al. 2023

Preprint

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Research into the relationship between coppice regeneration and stubble height has been mostly limited to stump sprouting, but root sprouts and clonal dispersal play a more important role in the restoration of declined populations and the maintenance of population stability. We aimed to investigate the response of root sprouting (number and growth) and the clonal dispersal (root extension and branching) capacity to stubble height, unveil its nutrient accumulation and allocation strategies and determine the appropriate stubble height that is most favorable for root sprouting, clonal dispersal, and nutrient accumulation. In a 15-year-old plantation of Hippophae rhamnoides ssp. sinensis with signs of premature aging, the plants were coppiced at 0, 10, and 20 cm from the ground level, with no coppicing as the control. The results showed the following: (1) Coppicing promoted the formation and growth of root sprouts, and root extension and branching, but promotion increased and then decreased with increasing stubble height, and the optimal stubble height was 10 cm. (2) N, P, K, Ca, and Mg content and reserves all increased and then decreased with the increase in stubble height, and the clonal nutrient content, reserves, and integrated nutrient accumulation capacity were greatest at 10 cm of stubble height. (3) The coppicing increased the accumulation and allocation ratio of nutrients in leaves, vertical roots, and horizontal roots, which played a dominant role in the integrated accumulation of clonal nutrients. (4) Root sprouting and clonal dispersal ability were positively correlated with clonal nutrient content, reserves, and integrated nutrient accumulation ability. Moreover, root-sprouting ability was positively correlated with clonal dispersal ability. From these, the coppicing regulated leaf development and clonal dispersal by affecting nutrient accumulation and allocation patterns, which in turn governed the formation and growth of root sprouts. This is a continuous driving process. According to the regression equations, a stubble height of 11–13 cm was estimated to be the most favorable for root sprouting, clonal dispersal, and nutrient accumulation.

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Section: Introductionmentioning

confidence: 99%

Response patterns of root sprouting and the clonal dispersal ability of Hippophae rhamnoides ssp. sinensis in relation to stubble height and its nutrient accumulation and allocation strategy

Li,

Ji,

Nie

et al. 2023

Preprint

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Effects of stubble height on stump sprouting and nutrient accumulation and allocation of Hippophae rhamnoides ssp. sinensis

Liu,

Li,

Nie

et al. 2024

Journal of Plant Ecology

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As a main method of forest regeneration, stump sprouting plays a crucial role in forest community succession and vegetation restoration. We aimed to investigate the response of stump sprouting capacity to stubble height, unveil its nutrient-accumulation and allocation strategies, and determine the appropriate stubble height most favorable for stump sprouting of Hippophae rhamnoides ssp. sinensis. Fifteen-year plants with signs of premature aging were coppiced at 0, 10, and 20 cm from the ground level. With the increase in stubble height, the number of stump sprouts increased linearly, and the survival rate decreased linearly. The height, diameter, and cluster width of stump sprouts first increased, reached the highest level at a stubble height of 10 cm, and then decreased. The contents and reserves of N, P, K, Ca, and Mg showed a similar trend as the growth, positively correlating with each other. Compared to the control (no coppicing), the coppicing increased the nutrient element allocation of leaves, vertical roots, and horizontal roots. Magnesium played an important role in stump sprouting. The findings suggest that coppicing changed the accumulation ability and allocation pattern of nutrient elements, and further affected the sprouting ability of stumps. The best stubble height for stump sprouting and nutrient accumulation potential was 11.0-14.0 cm estimated by the regression.

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Depletion of stem non-structural carbohydrates supports release of lateral branches from apical control in Quercus mongolica seedlings

Cited by 2 publications

References 67 publications

Response patterns of root sprouting and the clonal dispersal ability of Hippophae rhamnoides ssp. sinensis in relation to stubble height and its nutrient accumulation and allocation strategy

Response patterns of root sprouting and the clonal dispersal ability of Hippophae rhamnoides ssp. sinensis in relation to stubble height and its nutrient accumulation and allocation strategy

Effects of stubble height on stump sprouting and nutrient accumulation and allocation of Hippophae rhamnoides ssp. sinensis

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