scholarly journals Dry Matter Production and Nitrogen Absorption of Japonica-Indica Hybrid Rice Cultivars Grown under Upland Conditions.

2002 ◽  
Vol 71 (1) ◽  
pp. 28-35 ◽  
Author(s):  
Yoshiharu WADA ◽  
San-Iku YUN ◽  
Hiroki SASAKI ◽  
Tadanobu MAEDA ◽  
Kunio MIURA ◽  
...  
Keyword(s):  
Dry Matter ◽  
Hybrid Rice ◽  
Dry Matter Production ◽  
Rice Cultivars ◽  
Nitrogen Absorption ◽  
Matter Production ◽  
Upland Conditions ◽  
Indica Hybrid Rice

Analysis on Dry Matter Production Characteristics of Super Hybrid Rice

Rice Science ◽  
2008 ◽  
Vol 15 (2) ◽  
pp. 110-118 ◽  
Author(s):  
Wen-ge Wu ◽  
Hong-cheng Zhang ◽  
Ying-fei Qian ◽  
Ye Cheng ◽  
Gui-cheng Wu ◽  
...  
Keyword(s):  
Dry Matter ◽  
Hybrid Rice ◽  
Dry Matter Production ◽  
Super Hybrid Rice ◽  
Matter Production ◽  
Production Characteristics

scholarly journals Dry Matter Production and Partitioning in Different Plant Parts of Rice Cultivars under Irrigation Regimes and Systems of Cultivation

2021 ◽  
Author(s):  
G.V. Venkataravana Nayaka ◽  
G. Prabhakara Reddy ◽  
R. Mahender Kumar
Keyword(s):  
Dry Matter ◽  
Crop Growth ◽  
Dry Matter Production ◽  
Growth Stages ◽  
Rice Cultivars ◽  
Wetting And Drying ◽  
Alternate Wetting And Drying ◽  
Irrigation Regimes ◽  
Matter Production ◽  
Crop Growth Stages

Background: Growth and yield characteristics of genotypes depend on genetic and environmental factors. Among the different production factors, varietal selection at any location plays an important role. Proper crop management depends on the growth characteristics of various varieties to get maximum benefit from new genetic material. Among the different water- saving irrigation methods in rice, the most widely adopted is alternate wetting and drying (AWD). Many of the rice cultivars vary in their performance under different systems of cultivation.Methods: A field experiment was conducted on a clay loam soil at Indian Institute of Rice Research (IIRR) Rajendranagar, Hyderabad, Telangana during the kharif seasons of 2017 and 2018. to study the “productivity and water use efficiency of rice cultivars under different irrigation regimes and systems of cultivation” The treatments consisted of two irrigation regimes Alternate wetting and drying and Saturation as main plot treatments, three establishment methods System of Rice Intensification (SRI), Drum Seeding (DS) and Normal transplanting (NTP) as sub plot treatments and four Cultivars namely DRR Dhan 42, DRR Dhan 43, MTU-1010 and NLR-34449 as sub-sub plot treatments summing up to 24 treatment combinations laid out in split-split plot design with three replications.Result: At 60, 90 DAS/DAT and harvest significantly dry matter production (DMP) was recorded with DRR Dhan 43 cultivar (607, 4320 and 11548 kg ha-1 respectively in pooled means of both 2017 and 2018) than other cultivars. Whereas MTU-1010 and NLR-34449 recorded on par dry matter production values at all the crop growth stages during both the years of study. However, DRR Dhan 42 produced the lowest dry matter production compared to other genotypes. DRR Dhan 43 recorded higher dry matter accumulation (g m-2) in root, stem and leaves at all the crop growth stages, during both the years of the study over other cultivars. Alternative wetting and drying method of irrigation recorded significantly higher DMP at all the growth stages of rice (60, 90 DAS/DAT and at harvest) except at 30 DAS/DAT during both 2017 and 2018 as compared to saturation. SRI recorded significantly higher DMP as compared to normal transplanting; however, it was comparably at par with drum seeding at all the growth stages.

scholarly journals Effects of nitrogen fertilizer and elevated CO2 on dry matter production and yield of rice cultivars

1970 ◽  
Vol 34 (2) ◽  
pp. 313-322 ◽  
Author(s):  
MA Razzaque ◽  
MM Haque ◽  
MA Hamid ◽  
QA Khaliq ◽  
ARM Solaiman
Keyword(s):  
Elevated Co2 ◽  
Field Condition ◽  
Dry Matter ◽  
Dry Weight ◽  
Dry Matter Production ◽  
Optimum Dose ◽  
Rice Cultivars ◽  
Nitrogen Levels ◽  
Matter Production ◽  
Growing Conditions

A pot experiment was conducted at Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur during the year 2003 to find out the dry matter production and yield of rice cultivars under different nitrogen levels and growing conditions. Thirty-day old single seedlings were transplanted in pot and were placed in 3 growing conditions, such as i) Open top chamber (OTC) with elevated CO2 (570 ± 50 ppm), ii) OTC with ambient CO2 (360 ± 50 ppm), and iii) open field condition. The three nitrogen levels used were, i) control, ii) optimum dose, and iii) supra optimum dose. Three rice cultivars used in the experiment were, i) BRRI dhan 39, ii) Khashkani, and iii) Shakkarkhora. Rice yield and dry matter production respond significantly to different environments. Increasing atmospheric CO2 increased grain yield. Stem dry weight, leaf dry weight, leaf sheath dry weight and root dry weight were increased in elevated CO2 than ambient CO2 and field condition. BRRI dhan 39 gave highest yield (50.82 g/plant) at supra optimum N level in elevated CO2. Local variety gave similar result under elevated CO2 in optimum and supra optimum N levels. The lowest yield (15.09 g/plant) was produced by Shakkorkhora in field condition with no nitrogen application. Key Words: Nitrogen; elevated CO2; yield; dry matter.DOI: 10.3329/bjar.v34i2.5804Bangladesh J. Agril. Res. 34(2): 313-322, June 2009

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