Abstract：Dendrocalamus giganteus Munro, D. brandisii (Munro) Kurz, D. hamiltonii Nees et Arn. ex Munro and Bambusa vulgaris var. striata Gamble were selected to study their shooting, shoot height growth law and the impact of fertilization on bamboo shoots. The results showed that the four bamboo species have the cone-shaped shoots with different shades of color and sizes, while D. giganteus Munro has the largest shoots and B. vulgaris var. striata Gamble has the smallest shoots. In the same environment condition, B. vulgaris var. striata Gamble has the lowest shoots degeneration rate, only 17%, which is lower respectively than D. hamiltonii Nees et Arn. ex Munro (19%), D. brandisii (Munro) Kurz (22%) and D. giganteus Munro (25%). B. vulgaris var. striata Gamble has the longest shooting period, 222d, which is followed by D. giganteus Munro (170 d), D. brandisii (Munro) Kurz (153 d) and D. hamiltonii Nees et Arn. ex Munro (100 d). The four species follow the "slow-fast-slow" growth law in their growth. They grow slowly in height within 30 d after shooting, grow fast in the later 30-80 d and become slow in growth to total cease after the 80th day. The shoot growth of the 4 species of bamboo is closely related to rainfall, and when the annual rainfall is high, bamboo shoots grow the best in various growth indicators. The fertilization can obviously decrease the rate of bamboo degeneration, prolong the shooting period and increase the shoot diameter. The fertilizer formula has different impact on shoot growth. The application of urea ensures the best shoot growth, followed by compound fertilizer and superphosphate which has the minimal effect on shoot growth.
谭宏超, 诸嘉城. 4种大型丛生竹笋竹生长规律研究[J]. 世界竹藤通讯, 2018, 16(4): 36-39.
Tan Hongchao, Zhu Jiacheng. A Study of Growth Law of 4 Species of Sympodial Bamboo. World Bamboo and Rattan, 2018, 16(4): 36-39.
