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Indirect Estimations of Lentil Leaf and Plant N by SPAD Chlorophyll Meter
المؤلفون المشاركون
Zakeri, Hossein
Schoenau, Jeff
Vandenberg, Albert
Tayfeh Aligodarz, Mohammadreza
Bueckert, Rosalind A.
المصدر
International Journal of Agronomy
العدد
المجلد 2015، العدد 2015 (31 ديسمبر/كانون الأول 2015)، ص ص. 1-10، 10ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2015-01-12
دولة النشر
مصر
عدد الصفحات
10
التخصصات الرئيسية
الملخص EN
A Soil Plant Analysis Development (SPAD) chlorophyll meter can be used to screen for leaf nitrogen (N) concentration in breeding programs.
Lentil (Lens culinaris L.) cultivars were grown under varied N regimes, SPAD chlorophyll meter readings (SCMR) were recorded from the cultivars leaves, and leaf N concentration was measured by combustion.
Linear regression and the nonlinear Radial Basis Functions (RBF) neural networks models were employed to estimate leaf N concentration (LNC) based on the SCMR values.
The closest estimates of LNC were obtained from the multivariate models in which the combination of plant age, leaf thickness, and SCMR was employed as the independent variable.
In comparison, SCMR as the single independent variable in both models estimated less than 50% of LNC variations.
The results showed significant effects of soil moisture and plant age on the association of LNC –SCMR as well as the relationship of LNC with plant N, grain yield, and days to maturity.
However, the effect of cultivar on the measured variables was negligible.
Although lentil N can be diagnosed by comparing SCMR values of the crop with those from a well-fertilized (N fixing) plot, the results did not support using SPAD chlorophyll meter for screening lentil LNC.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Zakeri, Hossein& Schoenau, Jeff& Vandenberg, Albert& Tayfeh Aligodarz, Mohammadreza& Bueckert, Rosalind A.. 2015. Indirect Estimations of Lentil Leaf and Plant N by SPAD Chlorophyll Meter. International Journal of Agronomy،Vol. 2015, no. 2015, pp.1-10.
https://search.emarefa.net/detail/BIM-1064395
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Zakeri, Hossein…[et al.]. Indirect Estimations of Lentil Leaf and Plant N by SPAD Chlorophyll Meter. International Journal of Agronomy No. 2015 (2015), pp.1-10.
https://search.emarefa.net/detail/BIM-1064395
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Zakeri, Hossein& Schoenau, Jeff& Vandenberg, Albert& Tayfeh Aligodarz, Mohammadreza& Bueckert, Rosalind A.. Indirect Estimations of Lentil Leaf and Plant N by SPAD Chlorophyll Meter. International Journal of Agronomy. 2015. Vol. 2015, no. 2015, pp.1-10.
https://search.emarefa.net/detail/BIM-1064395
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1064395
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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