Search Result of "nutrient deficiency"

About 3 results


Separation of abnormal regions on black gram leaves using image analysis

ผู้แต่ง:ImgNoinongyao, P., ImgWatchareeruetai, U., ImgKhantiviriya, P., ImgWattanapaiboonsuk, C., ImgDr.Sutsawat Duangsrisai, Associate Professor,




ที่มา:วิทยาสารเกษตรศาสตร์ สาขา วิทยาศาสตร์

หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Effects of Nitrogen, Phosphorus and Potassium Deficiencies on Growth and Development of Globba rosae Gagnep.)

ผู้เขียน:ImgSoraya Ruamrungsri, ImgWatcharaphon Bumphenyoo, ImgRumjuan Sriwichai, ImgPimchai Apavatjrut



The effects of N, P and K deficiencies on growth, development and nutrient status of Globba rosae were investigated using soilless culture. Rhizomes of Globba rosae Gagnep. were planted in sand medium. After emergence, plants were supplied with nitrogen (N), phosphorus (P) or potassium (K) deficient solutions, compared with a complete nutrient solution (control treatment) and nutrient-free solution (only tap water). Plants were sampled at flowering (7-8 weeks after planting, WAP) and before dormancy stages (12 WAP) to determine the nutrient contents of the aerial and underground parts. Nutrient deficiency symptoms were observed in -N, -P and -K treatments. Leaf of –N treatment was small and yellowish green, the pink bract was pale and had no floret. For P and K deficient symptoms, leaves were small, floral bracts were pale. Plant height, number of leaves per plant, number of plants per cluster, number of racemes per plant in nutrient deficiency treatments were reduced. Days to flower was retarded compared with control treatment. The optimum levels of nitrogen, phosphorus and potassium in nutrient solution for growth of Globba rosae were 100, 100 and 200 mg l-1, respectively.

Article Info
Agriculture and Natural Resources -- formerly Kasetsart Journal (Natural Science), Volume 041, Issue 1, Jan 00 - Mar 07, Page 72 - 83 |  PDF |  Page 



ดร. สุดสวาสดิ์ ดวงศรีไสย์, รองศาสตราจารย์

ที่ทำงาน:ภาควิชาพฤกษศาสตร์ คณะวิทยาศาสตร์ บางเขน

สาขาที่สนใจ:Sugar Metabolism (Physiology and Molecular), Plant stress physiology/ water stress, Natural Product/Phytochemistry