Improvement of biomass partitioning, flowering and yield by triadimefon in UV-B stressed Vigna radiata (L.) Wilczek
Rajendiran, K.(Centre for Post Graduate Studies, Pondicherry (India). Botany Lab.)E-mail:[email protected] | Ramanujam, M.P.(Centre for Post Graduate Studies, Pondicherry (India). Botany Lab.)
Elevated UV-B radiation (12.2 kJ/square m/d) as against the ambient level of 10 kJ/square m/d affected flowering, productivity and biomass partitioning of green gram (Vigna radiata cv. KM-2). UV-B stress delayed flowering initiation and achievement of 50% flowering, reduced flower retention by 25%, potential yield by 18% and all yield attributes such as pod number (25%), pod mass (41%), seed number (32%) and seed mass (45%). Harvest index and shelling percentage were also reduced by 31 and 7%, respectively. Application of triadimefon (20 mg/cubic dm) to unstressed plants accelerated flowering and enhanced flower retention (21%), potential yield (15%) and yield attributes (7 to 44%). The partitioning of biomass between plant parts also showed improvement over the control plants. In UV-B-stressed plants, triadimefon treatment compensated the inhibitions to varying extents.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
المعلومات البيبليوغرافية
تم تزويد هذا السجل من قبل Library of Antonin Svehla