Relationship between chlorophyll meter readings and nitrogen in poinsettia leaves

被引：24

作者：

Dunn, Bruce L. ^{[1
]}

Singh, Hardeep ^{[1
]}

Goad, Carla ^{[2
]}

机构：

[1] Oklahoma State Univ, Dept Hort & Landscape Architecture, 358 Ag Hall, Stillwater, OK 74078 USA

[2] Oklahoma State Univ, Dept Stat, Stillwater, OK 74078 USA

来源：

JOURNAL OF PLANT NUTRITION | 2018年 / 41卷 / 12期

基金：

美国食品与农业研究所;

关键词：

greenhouse; nutrient status; sensor; LEAF CHLOROPHYLL; SPAD-502; METER; CORN; VALUES; APPLE; FERTILIZATION; MANAGEMENT; FERTILITY; VARIETIES; SEEDLINGS;

D O I：

10.1080/01904167.2018.1459697

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Chlorophyll meters are used for non-destructive estimation of leaf nitrogen (N). The objective of this study was to evaluate the readings with several chlorophyll meters (SPAD-502, atLEAF, and CCM-300), different sampling sites on leaves, number of leaves used for sampling, and different types of leaf N sampling on estimation of N in leaves of potted poinsettia (Euphorbia pulcherrima) Prestige Red. Results showed that all meters gave readings that were correlated for N determination and also were correlated with each other. SPAD and atLEAF showed interaction between different N treatments and different sampling sites on the leaves, while CCM readings were affected by different sampling sites on the leaf. atLEAF readings showed interaction between number of leaves sampled and different N treatments. Thus, during sensor-based leaf N estimation, sampling site on leaf, number of leaves sampled, and stage of plant development should be considered to minimize error.

引用

页码：1566 / 1575

页数：10

共 44 条

[21] LINDER S, 1980, NEW ZEAL J FOR SCI, V10, P166
[22] Using the SPAD 502 meter to assess chlorophyll and nitrogen content of benjamin fig and cottonwood leaves
Loh, FCW
Grabosky, JC
Bassuk, NL
[J]. HORTTECHNOLOGY, 2002, 12 (04) : 682 - 686
[23] Lohry R. D., 1988, AGRONOMY ABSTRACTS, P241
[24] Effects of light and soil fertility on growth, leaf chlorophyll content and nutrient use efficiency of beech (Fagus sylvatica L) seedlings
Minotta, G
Pinzauti, S
[J]. FOREST ECOLOGY AND MANAGEMENT, 1996, 86 (1-3) : 61 - 71
[25] FIELD CHLOROPHYLL MEASUREMENTS TO ASSESS THE NITROGEN STATUS OF POTATO VARIETIES
MINOTTI, PL
HALSETH, DE
SIECZKA, JB
[J]. HORTSCIENCE, 1994, 29 (12) : 1497 - 1500
[26] MURDOCK L, 1997, AGR170 U KENT COLL A
[27] USING SPAD-502 VALUES TO ASSESS THE NITROGEN STATUS OF APPLE-TREES
NEILSEN, D
HOGUE, EJ
NEILSEN, GH
PARCHOMCHUK, P
[J]. HORTSCIENCE, 1995, 30 (03) : 508 - 512
[28] Pavan G., 2004, Proceedings of the 7th International Conference on Precision Agriculture and Other Precision Resources Management, Hyatt Regency, Minneapolis, MN, USA, 25-28 July, 2004, P1366
[29] Peng S., 1992, International Rice Research Newsletter, V17, P19
[30] Spectral and spatial differences in response of vegetation indices to nitrogen treatments on apple
Perry, Eileen M.
Davenport, Joan R.
[J]. COMPUTERS AND ELECTRONICS IN AGRICULTURE, 2007, 59 (1-2) : 56 - 65

← 1 2 3 4 5 →