scholarly journals Regularity in Variation of Leaf Color and Nitrogen Distribution in Half-leaf Blades by Leaf Position on the Stems of Rice Plants. I. Variation of chlorophyll meter values and mechanism of leaf formation.

1995 ◽  
Vol 64 (4) ◽  
pp. 726-733 ◽  
Author(s):  
Hironori MIMOTO ◽  
Kiyoyuku IMAI ◽  
Hiroyuki DAIMON ◽  
Masamichi OHE
Keyword(s):  
Leaf Position ◽  
Leaf Color ◽  
Nitrogen Distribution ◽  
Chlorophyll Meter ◽  
Rice Plants ◽  
Leaf Formation

Influence of Cultivar and Growth Stage on Pigments and Processing Factors on Betacyanins in Red Amaranth (Amaranthus tricolor L.)

2009 ◽  
Vol 15 (3) ◽  
pp. 259-265 ◽  
Author(s):  
Laila Khandaker ◽  
Md. Babar Ali ◽  
Shinya Oba
Keyword(s):  
Food Processing ◽  
Color Index ◽  
Plant Age ◽  
Prolonged Storage ◽  
Leaf Color ◽  
Amaranthus Tricolor ◽  
Leaf Formation ◽  
Highly Correlated ◽  
The Stability ◽  
Processing Factors

Seven cultivars of red amaranth (Amaranthus tricolor L.) with different leaf color were evaluated for their betacyanin and chlorophyll content at two stages of development. The effects of food processing factors such as thermal treatment, light, H2O 2, and prolonged storage on betacyanin extracts were also examined. Betacyanin concentrations were highly correlated with the leaf color index and the cultivars (Rocto joba, BARI-1, and Altopati) with better color index tended to be associated with high betacyanin. Within a shoot canopy, the apical leaves accumulated higher betacyanin than those of middle and basal leaves. While the highest concentrations of chlorophyll were found in BARI-1, however Red queen had the lowest concentrations. Color index of leaves and betacyanin concentrations were increased and chlorophyll concentrations were decreased with the plant age, which indicate that change of these colorant pigment concentrations with plant age enhance the red leaf formation in red amaranth. Low temperature, darkness, and free or low oxidants maintained the stability of betacyanin concentrations of red amaranth; prolonged storage degraded the betacyanin. Variable factors such as the cultivar of red amaranth, its degree of maturity, and the food processing factors have been shown to have a quantitatively important influence on betacyanin yields and preservation.

scholarly journals Whole-Genome Resequencing and Transcriptomic Analysis to Identify Genes Involved in Leaf-Color Diversity in Ornamental Rice Plants

PLoS ONE ◽  
2015 ◽  
Vol 10 (4) ◽  
pp. e0124071 ◽  
Author(s):  
Chang-Kug Kim ◽  
Young-Joo Seol ◽  
Younhee Shin ◽  
Hye-Min Lim ◽  
Gang-Seob Lee ◽  
...  
Keyword(s):  
Transcriptomic Analysis ◽  
Whole Genome ◽  
Leaf Color ◽  
Genome Resequencing ◽  
Rice Plants ◽  
Whole Genome Resequencing

scholarly journals Non-photochemical Quenching Plays a Key Role in Light Acclimation of Rice Plants Differing in Leaf Color

2017 ◽  
Vol 7 ◽  
Author(s):  
Xia Zhao ◽  
Tingting Chen ◽  
Baohua Feng ◽  
Caixia Zhang ◽  
Shaobing Peng ◽  
...  
Keyword(s):  
Light Acclimation ◽  
Photochemical Quenching ◽  
Leaf Color ◽  
Rice Plants ◽  
Non Photochemical Quenching

Chlorophyll Meter– and Leaf Color Chart–Based Nitrogen Management for Rice and Wheat in Northwestern India

2002 ◽  
Vol 94 (4) ◽  
pp. 821-829 ◽  
Author(s):  
Bijay Singh ◽  
Yadvinder Singh ◽  
Jagdish K. Ladha ◽  
Kevin F. Bronson ◽  
Vethaiya Balasubramanian ◽  
...  
Keyword(s):  
Nitrogen Management ◽  
Leaf Color ◽  
Color Chart ◽  
Chlorophyll Meter ◽  
Northwestern India ◽  
Leaf Color Chart

Smartphone-based detection of leaf color levels in rice plants

2020 ◽  
Vol 173 ◽  
pp. 105431 ◽  
Author(s):  
Ming Tao ◽  
Xu Ma ◽  
Xunan Huang ◽  
Chuang Liu ◽  
Ruoling Deng ◽  
...  
Keyword(s):  
Leaf Color ◽  
Rice Plants

scholarly journals Management of Nitrogen Through the Use of Leaf Color Chart (LCC) and Soil Plant Analysis Development (SPAD) or Chlorophyll Meter in Rice Under Irrigated Ecosystem

2004 ◽  
Vol 4 ◽  
pp. 838-846 ◽  
Author(s):  
Debtanu Maiti ◽  
D. K. Das ◽  
Tanmoy Karak ◽  
Mahua Banerjee
Keyword(s):  
Plant Analysis ◽  
Leaf Color ◽  
Wet Season ◽  
Available N ◽  
Organic C ◽  
Mean Values ◽  
Color Chart ◽  
Chlorophyll Meter ◽  
N Treatment ◽  
Leaf Color Chart

A field experiment was conducted in a farmer’s field in the district of Nadia, West Bengal, India to study the management of N through leaf color chart (LCC) and soil plant analysis development (SPAD) or chlorophyll meter in rice (cv. IET-4094) during the Kharif (wet season) of 2001–2002 and 2002–2003 by taking the treatment combinations based on different levels of N at fixed schedule and through LCC and SPAD. The experimental soil (0–15 cm) had pH 7.33; organic C 0.43%; available N 408.70 kg ha−1; available P 6.92 kg ha−1; and available K 66.31 kg ha−1. The results of LCC and SPAD or chlorophyll meter for the N management in rice show that values of both LCC and SPAD significantly increased with an increasing level of N. The mean values of LCC and SPAD varied from 3.19–5.31 and 27.36–39.26, respectively, in rice. The results show that the amount of N can be saved as 20–42.5 and 27.5–47.5 kg N ha−1through the use of LCC and SPAD in rice over the fixed-timing N treatment T7where 150 kg N ha−1was applied in three (3) splits without reduction in the yield. The SPAD- and LCC-treated N plot showed higher N-use efficiency over fixed-scheduling N treatment in rice. The results further show that SPAD value of 37 and LCC value of 5 have been proved to be superior treatments over SPAD (35) and LCC (4) for the best management of N in rice in an Inceptisol.

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