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Articles by P. Chutichudet
Total Records ( 3 ) for P. Chutichudet
  Chutichudet Benjawan , P. Chutichudet and S. Kaewsit
  This experiment was carried out at the Faculty of Technology, Mahasarakham University, Mahasarakham 4400, Thailand to investigate effects of different water-soaking durations and hot air oven treatments on the germination of seeds of Kwao Kreu Kao (Pueraria candollei Grah. ex Benth) plants. The experiment was laid in a Randomised Complete Block Design with four replications. The results showed that after tested for Electrical Conductivity (EC) values for cracking of seeds, all seeds being used were at a normal condition (with an average EC value of 28.56 ┬ÁS cmG-1g G-1) and all seeds were ready for germination. Strength on impermeability of seeds declined after soaking in water for 10 h and onwards then the treated seeds had increased in weights. However, after treated under hot air oven, dry weights of all seeds became similar. Germination percentage of all treatments was most rapid during the first three weeks of germination period and later slowly increased with time. At day 91 after sowing, T2 gave the highest percentage of germination (52%) and the lowest was found with T1 (control) with 31.25%. Again at day 91 after sowing, T2 gave the highest mean value of plant numbers (16.38) and the lowest was found with T1 (7.28). Numbers of abnormal seedlings determined at day 63 after sowing were lowest with T2 (6.25%) and worst with T4 (20.14%). Again at day 63 after sowing, plant height was significantly tallest with T2 (3.88 cm) and the lowest was found with T4 (2.71 cm). Numbers of leaves were not significantly different among the treated plants reaching a highest value of 11.25 leaves plantG-1 for T3. It may be concluded that T2 was the best treatment for use in germinating seeds of Pueraria candollei Grah. ex Benth plants. Further improvements on longevity and high percentage of germination of seeds were discussed and suggested.
  S. Vetayasuporn , P. Chutichudet and K. Cho-Ruk
  A substrate combination of sawdust and bagasse were used for Pleurotus ostreatus cultivation, and 6-9 flushes were obtained from these substrates. A substrate combination of 50% bagasse +50% sawdust accelerated the mushroom growing processes. The mycelial completed colonization, primordium initiation and fruiting body formation were found within 22, 27 and 32 days, respectively. Even the 100% sawdust +15% EM solution gave the maximum mushroom yield (536.85 g per 1,000 g substrate) but this yield was insignificantly different to those found from 100% sawdust substrate + tap water (control; 508.98 g), the substrate combination of 75% bagasse +25% sawdust (524.28 g) and 50% bagasse +50% sawdust (494.05 g) at a confidence level of 95%. However, 107.61 and 106.89% of the Biological efficiency values were revealed in the substrate combination of 75% bagasse +25% sawdust and 50% bagasse +50% sawdust, respectively. The substrate combination of sawdust and bagasse has shown great potential for use as a raw material since this mixed substrate provides an economically acceptable production alternative for P. ostreatus cultivation.
  Chutichudet Benjawan , P. Chutichudet and T. Chanaboon
  This investigation was carried out on Roi-Et soil series (Oxic Paleustults) at Chaiyaphum Province, Northeast Thailand during October 2004 to June 2005. The study aimed to justify the effect of different rates of Gibberellin (GA3) on yield and fruit quality of Kaew mango cv. Srisaket 007 (Mangifera indica L.). The study was laid in a Randomized Complete Block Design (RCBD) with four replications. Five rates of GA3 were used, i.e., 0 (T1, control), 1,953.25 (T2), 3,906.50 (T3), 5,859.75 (T4) and 7,813.00 ppm ha-1 (T5) with the actual rates being used of 0, 50, 100, 150 and 200 ppm for T1 up to T5, respectively, i.e., each rate was used for four replications of four mango trees of each treatment. The results showed that the application of GA3 at a rate of 1,953.25 ppm ha-1 or 12.50 ppm plant-1 appliedto Kaew mango cv. Srisaket 007 gave the highest mango fresh fruit yield of 32,066.83 kg ha-1. All rates of GA3 being used had no significant effect on harvesting age, width, flesh firmness and total soluble solids of mango fruits but highly increased % of panicles with survived fruits, fruit yield ha-1, fruit flesh content, fruit thickness, individual fruit weight and titratable acidity of flesh of fruits and also significantly increased in length of the mango fruits. GA3 at a rate of 1,953.25 ppm ha-1 or 12.50 ppm plant-1 is needed for high fruit production whenever mango trees started to produce flowers.
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