Nitrogen and starch analysis of cotton leaves using near infrared reflectance spectroscopy (NIRS)

Hattey, Jeffory A.; Sabbe, W. E.; Baten, G. D.; Blakeney, A. B.

doi:10.1080/00103629409369158

Cited by 53 publications

(19 citation statements)

References 7 publications

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“…Calibration models for starch and N were constructed using partial least squares from NIR spectra of leaf samples as described in Hattey et al (1994) and the Perstorp NIR recommendations. Algorithms used were those of Shenk and Westerhaus (1991a, 1991b, and 1991c.…”

Section: Near Intra-red Spectroscopymentioning

confidence: 99%

“…Differing levels of elements in plant tissues can therefore be due to nutrient stress, growth, or metabolic accumulation. While the dilution effect plagues researchers who attempt to quantify effects of nutrient stress in plants using measurements on a % DW basis, to our knowledge only Batten andBlakeney (1991) and Hattey et al (1994) have used the starch-N relationship as a measure of the "energy status" to identify field plants that respond poorly to fertilizers.…”

Section: Introductionmentioning

confidence: 98%

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Starch and nitrogen status in soybean during shading and nutrient deficiency

Ball

Sabbe

DeLong

1998

Journal of Plant Nutrition

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Plant mineral requirements are based on nutrient prediction models, but plant energy is seldom taken into consideration. Starch, a potential indicator of plant energy reserve, was assessed by first investigating the association between leaf starch and nitrogen (N) during and after shading, and secondly by quantifying leaf phosphorus (P) and potassium (K) content to the starch-N relationship. Soybeans [Glycine max (L.) Merr] were field-grown in 1992, 1993 and 1994 at Fayetteville, Arkansas, and shaded during vegetative and reproductive growth (V7 to R4). The 1994 shading study also incorporated a treatment of K and P fertilizer. Starch and N levels (% leaf DW) were predicted from calibration models based on spectra produced by near infra-red spectroscopy. Starch measured at 1,800 h was reduced by shading, declined after flowering, and was more strongly associated with radiation and leaf N as growth stage R4 was reached. The range of starch concentration in leaf tissue was from zero to 18% leaf DW, and nitrogen varied from 3.5 to 5.5% leaf DW. Starch and N levels were inversely related for leaves located at or near the top of the plant canopy. From covariant analysis, we did not find the starch-N relationship to change with differing K content of leaves from the 1994 study. Leaf samples with low and high P content showed differences in the slopes of the starch-N curves due to the mild nutrient stress. The starch-N relationship may be useful in identifying plants affected by P deficiency. 665

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Section: Near Intra-red Spectroscopymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

Starch and nitrogen status in soybean during shading and nutrient deficiency

Ball

Sabbe

DeLong

1998

Journal of Plant Nutrition

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show abstract

“…The critical issue for application of the NIRA method in measuring N status, was to determine analytical limitations under various conditions such as sample moisture content, deficiency of other nutrients, growth regulator application, etc. Hattey et al (1994) applied NIRS to evaluate N and starch content of dry, ground cotton leaves. They concluded that NIRS could be used to predict N and starch content of cotton leaves in a rapid non-destructive method with no greater loss of accuracy than laboratory measurements.…”

Section: Literature Reviewmentioning

confidence: 99%

Effect of row spacing, growth stage, and nitrogen rate on spectral irradiance in winter wheat

Lukina

Raun

Stone

et al. 2000

Journal of Plant Nutrition

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“…The method to degrade starch using thermostable B. licheniformis a-amylase was proposed by Batey (1982) and refined by Hattey et al (1994) before being developed into an analytical kit for total starch analysis described in McCleary et al (1997) and currently available as ''A Total Starch Assay Kit'' (Megazyme, 2006). To hydrolyse starch from archaeological samples the method had to be modified for use with the minute samples normally obtained.…”

Section: Methods For Amylase Digestionmentioning

confidence: 99%