Growth characteristics and adaptability of Arundo donax cv. Lvzhou 1 in the southwest region of Shandong Province

doi:10.16178/j.issn.0528-9017.20250101

Abstract

Abstract:

This study took polyploid varieties of Arundo donax cv. Lvzhou 1 as the research object，systematically analyzed its growth characteristics，agronomic traits，and nutrient contents in the southwest region of Shandong Province through field experiments，and explored the effect of environmental factors and cultivation measures on its growth. The results showed that Arundo donax cv. Lvzhou 1 entered a rapid growth period 90 d after transplantating，and there was an extremely significant（p<0.01）positive correlation between stem diameter and plant height. The number of new tiller branches was significantly（p<0.05）affected by the stubble height and the number of branches of tissue-cultured seedlings. When the stubble height was 100 cm，the number of new tiller branches reached 26.6；when the number of branches of tissue-cultured seedlings was more than or equal to 3，the number of new tiller branches could be significantly improved. When the plant height was 160-200 cm，the crude protein content of the whole plant（13.3%-13.6%）was the highest，and the crude fiber content（38.3%-50.7%）was within an acceptable range. It is recommended to mow at this stage to balance the yield and nutritional requirements. This study provides a theoretical basis for the scientific planting，harvesting management，and ecological economic coordinated development of Lvzhou 1 in the southwest region of Shandong Province.

Key words: Arundo donax cv. Lvzhou 1, southwest region of Shandong Province, growth characteristic, forage production, adaptability

CLC Number:

S545

MENG Qingfeng, YUE Zenghui, ZHU Limei, WANG Shuxia, LIU Yanzhi, ZHANG Xin, CHU Huimin. Growth characteristics and adaptability of Arundo donax cv. Lvzhou 1 in the southwest region of Shandong Province[J]. Journal of Zhejiang Agricultural Sciences, 2026, 67(3): 704-708.

Figures/Tables 7

References 12

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移栽时间/d	茎粗/cm	株高/cm	叶片数	分蘖新枝数
30	0.4±0.1 d	10.1±4.2 d	4.9±1.2 d	1.6±0.9 c
60	0.6±0.2 c	54.1±11.1 c	12.0±1.8 c	5.6±2.0 c
90	1.2±0.2 b	153.8±22.3 b	18.4±3.0 b	11.8±2.7 b
120	1.4±0.2 a	261.3±38.1 a	27.3±4.8 a	15.9±4.5 b
150	1.4±0.2 a	304.4±34.3 a	29.2±3.4 a	21.7±5.8 a

移栽时间/d	茎粗/cm	株高/cm	叶片数	分蘖新枝数
30	0.4±0.1 d	10.1±4.2 d	4.9±1.2 d	1.6±0.9 c
60	0.6±0.2 c	54.1±11.1 c	12.0±1.8 c	5.6±2.0 c
90	1.2±0.2 b	153.8±22.3 b	18.4±3.0 b	11.8±2.7 b
120	1.4±0.2 a	261.3±38.1 a	27.3±4.8 a	15.9±4.5 b
150	1.4±0.2 a	304.4±34.3 a	29.2±3.4 a	21.7±5.8 a

移栽时间/d	单株鲜重/g	单株干重/g	茎叶比/%	含水量/%
60	17.8±4.0 c	4.7±3.8 c	35.2±10.6 c	73.3±7.1 b
90	240.0±172.9 c	53.3±40.6 c	71.5±19.3 b	78.3±1.6 a
120	1 227.0±274.7 b	356.9±97.5 b	153.9±18.7 a	71.1±2.3 b
150	2 881.9±426.1 a	985.7±112.4 a	171.1±19.4 a	66.0±1.2 c

移栽时间/d	单株鲜重/g	单株干重/g	茎叶比/%	含水量/%
60	17.8±4.0 c	4.7±3.8 c	35.2±10.6 c	73.3±7.1 b
90	240.0±172.9 c	53.3±40.6 c	71.5±19.3 b	78.3±1.6 a
120	1 227.0±274.7 b	356.9±97.5 b	153.9±18.7 a	71.1±2.3 b
150	2 881.9±426.1 a	985.7±112.4 a	171.1±19.4 a	66.0±1.2 c

越冬留茬		组培苗
留茬高度/cm	分蘖新枝数	组培苗枝条数	分蘖新枝数
20	3.0±2.6 c	1	1.1±0.4 b
30	14.7±4.9 b	2	1.2±0.4 b
50	15.4±4.1 b	3	2.3±0.4 a
100	26.6±3.7 a	4	2.3±0.6 a
整株	19.0±1.5 ab	5	2.5±0.7 a