Results 221 to 230 of about 73,078 (260)

Modeling the Biomass and Harvest Index Dynamics of Timothy

Agronomy Journal, 2011
Residual stubble, following harvest or the grazing of perennial grasses, is an important element of the C cycle in agricultural systems that has not been considered in most growth models. The stubble fraction from aboveground biomass can be quantified by predicting the harvest index (HI) of forage grasses, i.e., the amount harvested or grazed as a ...
Qi Jing, Gilles Bélanger, Vern Baron, Helge Bonesmo   +3 more
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Harvest index and the components of biological yield in sugarcane

Indian Journal of Genetics and Plant Breeding (The), 2013
Sugarcane has emerged as a new and potential source of power and bioethanol. Harvest index is a useful parameter to assess the suitability of different varieties for various end-uses. Field studies on harvest index were carried out involving sugarcane varieties and elite genotypes representing the varietal spectrum of subtropical India.
Raman Kapur, S. K. Duttamajumder, B. L. Srivastava, H. L. Madhok, Ram Kumar   +4 more
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Photogrammetry for the estimation of wheat biomass and harvest index

Field Crops Research, 2018
Abstract Field-based next generation phenotyping has become of great interest to plant breeders and agricultural researchers in recent years, particularly for circumventing destructive or impractical phenotyping methods commonly used for certain traits.
Walter, J., Edwards, J., McDonald, G., Kuchel, H.   +3 more
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Harvest Index in Cereals¹

Agronomy Journal, 1971
AbstractHarvest index values were studied in cereals during 1964 to 1967. A high degree of variability was found in the harvest index of winter wheat and other cereals. Stems contributed the greatest amount of dry weight to the straw yield and thus, as a vegetative part, materially influenced the harvest index.
I. D. Singh, N. C. Stoskopf
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Optimality of myopic scheduling and whittle indexability for energy harvesting sensors

2012 46th Annual Conference on Information Sciences and Systems (CISS), 2012
Consider a single-hop wireless sensor network, where a central node (or fusion center, FC) collects data from a set of M energy harvesting (EH)-capable sensors (or nodes). In each time-slot only a subset of K ≤ M nodes can be scheduled by the FC for transmission over K orthogonal communication resources (e.g., frequencies).
Fabio Iannello, Osvaldo Simeone, Umberto Spagnolini   +2 more
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PHENOTYPIC STABILITY FOR HARVEST INDEX: IN BLACK GRAM

Madras Agricultural Journal, 1983
Phenotypic stability for harvest index was studied by growing 31 genotypes of black gram in three environments of cultural practices, Main effects as well as both components of G-x E interaction (linear and non-linear effects were significent. Ten genotypes were found responsive to favourable environment.
YADAVI I.S, TOMER R.P.S, KUMAR D
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Physiological basis of the response of harvest index to the fraction of water transpired after anthesis: A simple model to estimate harvest index for determinate species

Field Crops Research, 1991
Abstract The fraction of biomass partitioned to grain is critical to crop yield. Methods to predict this fraction are required for crop modelling. The relationship between harvest index ( hi ) and the fraction of water transpired after anthesis (θE) provides a simple basis for the estimation of hi for determinate species.
V.O. Sadras, D.J. Connor
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Harvest index in lentil (Lens culinaris Medik.)

Euphytica, 1977
Correlation and path coefficient analyses were conducted to find out the characters associated with grain yield and dry matter production and the ways to improve harvest index in lentil.
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Reviewing the harvest index estimation in crop modeling

2019
H Harvest index (HI), ratio of seed yield to aboveground dry matter, is a very important parameter for estimating seed yield in several crop models. In this study, the importance, definition, variability and estimation methods of HI in crop models were discussed. HI estimation methods are categorized into two groups including: (i) complex methods that
Shabani, A., Sepaskhah, A. R.
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Nitrogen harvest index as a selection criterion in oats

2018
A population of 480 random lines of oats (Avena sativa L.) were grown on soil that received no application of nitrogen (N) or 112 leg of N ha ^ (defined as low and high N environments, respectively) to evalu­ ate the effect of N availability in the soil upon the plant's ability to partition N between vegetative tissue and the grain, a ratio defined as ...
openaire   +2 more sources