Effect of different fertilizer combinations on flowering and chlorophyll content of oriental cherry based on PCA

doi:10.16178/j.issn.0528-9017.20230426

Abstract

Abstract:

Taking oriental cherry as the research object, this study has investigated the effects of different dosages and combinations of macroelement water-soluble fertilizer, secondary element water-soluble fertilizer, and microbial inoculants (Aijia Biological Company) on flowering and chlorophyll content. The results have indicated that different treatments have different promoting effects on various indicators of flowering and chlorophyll content. We have normalized the indicators of bud scale cracking rate, red exposure rate, flower bud production rate, initial flower rate, flowering rate, average number of flowers per plant, and leaf chlorophyll content and used principal component analysis (PCA) to construct an evaluation model for flowering and chlorophyll content. The results have showed that the optimal fertilizer combination for promoting flowering and chlorophyll content in leaves was macroelement water-soluble fertilizer of 100 g per plant, microbial inoculants of 50 mL per plant, and secondary element water-soluble fertilizer of 10 g per plant.

Key words: oriental cherry, macroelement water-soluble fertilizer, secondary element water-soluble fertilizer, microbial inoculants

CLC Number:

S682.3

GAO Zhaoliang, JUN Jiaxiang, SHEN Tongfei, ZHU Jianjun. Effect of different fertilizer combinations on flowering and chlorophyll content of oriental cherry based on PCA[J]. Journal of Zhejiang Agricultural Sciences, 2024, 65(1): 125-129.

Figures/Tables 8

Table 1 Experimental design of different fertilization treatments

处理	大量元素水溶肥/g	微生物菌剂/ mL	中量元素水溶肥/g
T1	0	0	0
T2	0	50	5
T3	0	100	10
T4	100	0	5
T5	100	50	10
T6	100	100	0
T7	200	0	10
T8	200	50	0
T9	200	100	5

Fig.1 Effect of different fertilizer combinations on the cracking rate of bud scales in oriental cherry

Fig.2 Effect of different fertilizer combinations on red exposure rate of oriental cherry

Fig.3 Effect of different fertilizer combinations on bud production rate of oriental cherry

Fig.4 Effect of different fertilizer combinations on the initial flowering rate of oriental cherry

Fig.5 Effect of different fertilizer combinations on flowering of oriental cherry

Fig.6 Effect of different fertilizer combinations on chlorophyll content in cherry blossom leaves

Table 2 Evaluation of CBGEI for each treatment based on principal component analysis (PCA)

试验处理	樱花生长评价指数(CBGEI)	排序
T5	2.08	1
T4	1.61	2
T9	1.38	3
T8	1.17	4
T6	1.13	5
T7	0.98	6
T2	0.93	7
T1	0.85	8
T3	0.80	9

References 7

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