Influence of paclobutrazol on growth and development of fruit in Brassica juncea (L.) Czern and Coss |
| |
Authors: | R C Setia Parminder Kaur Neelam Setia Anuradha |
| |
Institution: | (1) Department of Botany, Punjab Agricultural University, 141004 Ludhiana, India |
| |
Abstract: | Foliar spraying of paclobutrazol(5, 10 and 20 g mL–1) on Brassica juncea (cv. RLM 514) plants, at the green floral bud stage of the terminal inflorescence, exerted a profound effect on growth and metabolism of fruits (siliquae). Paclobutrazol caused a decrease in siliqua length but enhanced significantly siliqua width, seed size (diameter) and seed number per siliqua. Paclobutrazol increased dry matter production and also hastened the relative growth rate of the siliqua wall and seed. In paclobutrazol-treated plants the siliquae were darker green, and during active phases of growth both siliqua wall and seed exhibited higher total chlorophyll (Chl) content, decreased chl a/b ratios, greater hill reaction activity of chloroplasts and increased activities of -amylase, -amylase and invertase than controls. Paclobutrazol enhanced the levels of total soluble sugars, starch, protein and free amino acids in mature seeds. The seed oil content increased by 2 to 3 per cent with a treatment of 10 g mL–1 pacolobutrazol. |
| |
Keywords: | Brassica juncea Indian mustard paclobutrazol fruit siliqua |
本文献已被 SpringerLink 等数据库收录! |
|