Plant Nutrition Status in Flowering Process of <i>Bashania Fargesii</i>—a Staple Food of the Gaint Pandas in Qinling Mt.

DU Xi-chun; ZHANG Jiu-dong; GUO Cheng-yuan; HE Xiang-bo; ZHAO Yin-ping

Sep. 2021

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DU Xi-chun, ZHANG Jiu-dong, GUO Cheng-yuan, HE Xiang-bo, ZHAO Yin-ping. Plant Nutrition Status in Flowering Process of Bashania Fargesii—a Staple Food of the Gaint Pandas in Qinling Mt.[J]. JOURNAL OF BAMBOO RESEARCH, 2021, 40(1): 22-26.

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DU Xi-chun, ZHANG Jiu-dong, GUO Cheng-yuan, HE Xiang-bo, ZHAO Yin-ping. Plant Nutrition Status in Flowering Process of Bashania Fargesii—a Staple Food of the Gaint Pandas in Qinling Mt.[J]. JOURNAL OF BAMBOO RESEARCH, 2021, 40(1): 22-26.

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Plant Nutrition Status in Flowering Process of Bashania Fargesii—a Staple Food of the Gaint Pandas in Qinling Mt.

1. School of Biological and Environmental Engineering, Xi'an University, Xi'an 710065, Shaanxi, China;
2. The Administration of Shaanxi Foping National Nature Reserve, Foping 723400, Shaanxi, China

Received Date: 2021-01-12
Available Online: 2021-09-10

Abstract

Abstract

The leaf SPAD values of three Bashania Fargesii populations at different growth stages, i.e., vegetative growth, bud initiation and development, and flowering stage, were compared in this study. The average leaf weight, average mass and number of leaves per branch weight were measured at the same time. The results showed that the relative content of chlorophyll decreased by about 10% from the vegetative stage to the bud initiation and development stage, during flowering, the average weight of leaves decreased by 80%, especially the average weight ratio of leaves per branch weight decreased by 90%, resulting in a decrease of photosynthetic efficiency and assimilation ability. This indicated that the leaf nutrient status and morphological structure were closely related to the flowering process. The leaf average weight and the ratio of leaf weight to branch weight of Bashania Fargesii were sensitive morphological and structural indexes, which could be used as warning indexes for flowering. This study may enrich the theory of bamboo flowering and provide a decision-making basis for the conservation of the Giant Pandas.
- Bashania Fargesii,
- Chlorophyll content,
- Nitrogen content,
- Ratio of leaf weight to shoot weight,
- Average leaf weight,
- Bamboo flowering

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References(37)

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