scholarly journals "Lion Tail Like Root" Formation in Rice Plant and the Soil Conditions

1969 ◽  
Vol 38 (3) ◽  
pp. 442-446 ◽  
Author(s):  
Masuo SOEZIMA ◽  
Shin-ichiro KAWATA
Keyword(s):  
Rice Plant ◽  
Root Formation ◽  
Soil Conditions

Penanaman Padi Merah Tempatan, MRM 16 dalam Keadaan Tanah Semi-Aerob dan Aerob dapat Mengurangkan Pengambilan Arsenik

2014 ◽  
Vol 70 (6) ◽  
Author(s):  
Shahida Hashim ◽  
Asfaliza Ramli ◽  
Zaki Musa
Keyword(s):  
Rice Plant ◽  
Water Regime ◽  
Positive Relationship ◽  
Arsenic Concentration ◽  
Raw Material ◽  
Soil Conditions ◽  
Rice Grain ◽  
Red Rice ◽  
Yield Performance ◽  
Aerobic Soil

Red rice is classified as specialty rice due to its coloured grain. Red colour that surrounded the outer layer of pericarp showed the existence of anthocyanin in red rice grain. However, heavy metal like arsenic in red rice plant become major concern in human health especially so in babies. This is because red rice normally used as a key raw material in the manufacture of infant cereals. In order to overcome this problem, study on effects of water regime on arsenic concentration in local red rice, MRM 16 was conducted during main season 2007/2008 and off season 2008. The water regimes tested were fully flooded, semi-aerobic and aerobic soil conditions. Result showed that arsenic concentration in the soil and grain was markedly highest when MRM 16 was cultivated under fully flooded in both seasons. However, concentration of arsenic in the soil and grain samples was the lower when the red rice was cultivated under semi-aerobic and aerobic soil conditions. Arsenic concentration in the soil and grain samples showed positive relationship. However, analysis of grain yield showed that the yield performance of MRM 16 was better when the soil was fully flooded or maintained semi-aerobically.

scholarly journals In vitro culture used for woody fern Cyathea australis (R. Br.) domin vegetative propagation

2014 ◽  
Vol 64 (1) ◽  
pp. 13-17 ◽  
Author(s):  
Katarzyna Goller ◽  
Jan J. Rybczyński
Keyword(s):  
In Vitro Culture ◽  
Spore Germination ◽  
Vegetative Propagation ◽  
Root Formation ◽  
Basal Part ◽  
Soil Conditions ◽  
Vegetative Multiplication

Experiments have been carried out on vegetative multiplication of <em>Cyathea australis</em>. Cultures were initiated from spores collected from sporangium of mature fronds. Spores were sterilized in 3% chloramine with Tween and sown on Anderson (1984) medium supplemented with 80.0 mg/l of Ads and solidified by 8.0 g/l of agar. After three months of spore germination overgrowth of prothallia was observed. Multiplication of prothallia was stimulated by MS (1962) medium supplemented with 0.25 mg/l BAP, 0.50 mg/l IBA, 0.50 mg/l IAA, 1.00 mg/l GA<sub>3</sub>, 40.00 mg/l Ads and sucrose 30.0 g/l. Small drops of water were placed on the basal part of gametophyte in order to help ovary fertilization. After the next few weeks the first very fragile, small and green crosier emerged from the base of gametophyte. Perlite culture stimulated root formation and plant hardening to soil conditions.

scholarly journals Root Formation in Rice Plant and Levels of Nitrogen Supply

1977 ◽  
Vol 46 (2) ◽  
pp. 193-198 ◽  
Author(s):  
Shin-ichiro KAWATA ◽  
Sachio MARUYAMA ◽  
Masuo SOEJIMA
Keyword(s):  
Rice Plant ◽  
Root Formation ◽  
Nitrogen Supply

Localization of acid phosphatases in root cap of rice plant

1991 ◽  
Vol 49 ◽  
pp. 224-225
Author(s):  
Y. R. Chen ◽  
Y. F. Huang ◽  
W. S. Chen
Keyword(s):  
Rice Plant ◽  
Developmental Stages ◽  
Uranyl Acetate ◽  
Root Cap ◽  
Plant Tissues ◽  
Acid Phosphatases ◽  
Root Tips ◽  
Buffer Solution ◽  
Cacodylate Buffer ◽  
Ethanol Series

Acid phosphatases are widely distributed in different tisssues of various plants. Studies on subcellular localization of acid phosphatases show they might be present in cell wall, plasma lemma, mitochondria, plastid, vacuole and nucleus. However, their localization in rice cell varies with developmental stages of cells and plant tissues. In present study, acid phosphatases occurring in root cap are examined.Sliced root tips of ten-day-old rice(Oryza sativa) seedlings were fixed in 0.1M cacodylate buffer containing 2.5% glutaraldehyde for 2h, washed overnight in same buffer solution, incubated in Gomori's solution at 37° C for 90min, post-fixed in OsO4, dehydrated in ethanol series and finally embeded in Spurr's resin. Sections were doubly stained with uranyl acetate and lead citrate, and observed under Hitachi H-600 at 75 KV.

Sign in / Sign up

Export Citation Format

Share Document