scholarly journals INFLUENCE OF COW MANURE AND ITS VERMICOMPOSTING ON THE IMPROVEMENT OF GRAIN YIELD AND QUALITY OF RICE (ORYZA SATIVA L.) IN FIELD CONDITIONS

2018 ◽  
Vol 16 (1) ◽  
pp. 97-110 ◽  
Author(s):  
E. TAHERI RAHIMABADI
Keyword(s):  
Oryza Sativa ◽  
Grain Yield ◽  
Oryza Sativa L ◽  
Field Conditions ◽  
Cow Manure ◽  
Yield And Quality ◽  
Grain Yield And Quality

Effect of intermittent drought on grain yield and quality of rice ( Oryza sativa L.) grown in Rwanda

2019 ◽  
Vol 206 (2) ◽  
pp. 252-262
Author(s):  
Alphonsine Mukamuhirwa ◽  
Helena Persson Hovmalm ◽  
Rodomiro Ortiz ◽  
Obedi Nyamangyoku ◽  
Maria Luisa Prieto–Linde ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Grain Yield ◽  
Oryza Sativa L ◽  
Yield And Quality ◽  
Grain Yield And Quality

Effects of Growth Duration on Grain Yield and Quality in Rice (Oryza sativa L.)

2012 ◽  
Vol 38 (3) ◽  
pp. 528 ◽  
Author(s):  
You-Zhong LANG ◽  
Yong-Xiu DOU ◽  
Mei-E WANG ◽  
Zu-Jian ZHANG ◽  
Qing-Sen ZHU
Keyword(s):  
Oryza Sativa ◽  
Grain Yield ◽  
Oryza Sativa L ◽  
Growth Duration ◽  
Yield And Quality ◽  
Grain Yield And Quality

scholarly journals Field estimate with NDVI of grain yield and quality of wheat flour

2021 ◽  
Vol 25 (12) ◽  
pp. 801-806
Author(s):  
João P. K. Reznick ◽  
Volnei Pauletti ◽  
Gabriel Barth
Keyword(s):  
Grain Yield ◽  
Optical Sensors ◽  
Vegetation Index ◽  
Normalized Difference Vegetation Index ◽  
Wheat Yield ◽  
Field Conditions ◽  
Yield And Quality ◽  
Technological Quality ◽  
Grain Yield And Quality

ABSTRACT Nitrogen fertilization is essential for wheat yield and quality but needs more accuracy, and the use of proximal optical sensors in the field can assist in this goal. This study aimed to verify if it is possible to use the normalized difference vegetation index (NDVI) obtained throughout the wheat growth phase to estimate the grain yield and the technological quality of the flour from cultivars submitted to nitrogen doses. The experiment was conducted at field conditions in Ponta Grossa, PR, Southern Brazil. The experimental design was randomized blocks in a 4 × 6 factorial scheme with four replicates. The cultivars Quartzo, Gralha Azul, Sinuelo, and Toruk, combined with six doses of N (0, 40, 80, 120, 160, and 200 kg ha-1 of N), were evaluated. The NDVI values were sensitive to both nitrogen doses and the different cultivars. There was a relationship between NDVI and grain yield, protein, and gluten concentration of flour. The NDVI estimated the gluten strength, stability, tenacity, extensibility of the mass, and tenacity/extensibility ratio of the flour obtained at the beginning of the cycle, but not for all cultivars. The determinations of NDVI with active optical sensor GreenSeeker in wheat are efficient to estimate the grain yield and the flour quality under field conditions, allowing to generate models for estimation of these variables separately for each cultivar.

Sign in / Sign up

Export Citation Format

Share Document