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- Title
EFFECT OF ABSCISIC ACID (ABA) ON YIELD AND ITS COMPONENTS OF FOUR RICE VARIETIES (ORYZA SATIVA L.) UNDER AEROBIC CONDITIONS.
- Authors
Al-jawaheri, Ali Jaaffar Baqer; Alogaidi, Faez Fayad
- Abstract
This experiment was carried out at University of Baghdad/college of agricultural engineering sciences during the summer season of 2018 to evaluate the effect of foliar spraying of Abscisic acid (ABA) on four rice Varieties: Amber-33, Jasmine (local Varieties), Nagina-22 (N22) and Kinandang patong (KP) (introduced Varieties) under aerobic conditions. A randomized complete block design (RCBD) with three replicates, each one contained three concentrations of ABA (8, 16 and 24 mg.L-1), which were symbolized as (A1, A2 and A3) respectively, as well as the control treatment which sprayed with distilled water only (A0), these concentration were applied to each of four Varieties in order to determine their effect on the studied traits which were: Tiller number, Panicle length, Panicle number, Panicle grain number, Weight of 1000 grains and total grain yield. Results showed a significant difference among the Varieties in all studied traits, the Variety Amber-33 gave the highest values in Panicle length (24.79 cm), while Variety (KP) gave the most significant values in Panicle grain number (123.06), weight of 1000 grains (22.05 gm) and total grain yield (6.34 ton.h-1), the Variety N22 has given the highest values in total tiller number (580.59 tiller.m-2) and panicle number (435.18 panicle.m-2), Also the spraying of ABA in different concentration gave a significant effect on the studied traits, the A3 treatment gave the highest values in tiller number (487.94), panicle length (24.79 cm), panicle number (399.13), panicle grain number (119.89), weight of 1000 grains (20.42 gm) and total grain yield (7.52 ton.h-1). Also the interaction between ABA and Varieties gave significant values in the studied traits.
- Subjects
ABSCISIC acid; RICE varieties; AGRICULTURAL engineering; SPRAYING &; dusting in agriculture; RICE genetics; RICE experiments
- Publication
Plant Archives (09725210), 2020, Vol 20, Issue 2, p1071
- ISSN
0972-5210
- Publication type
Article