نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانش‌آموخته دکتری، گروه مهندسی تولید و ژنتیک گیاهی، دانشکده کشاورزی، دانشگاه علوم کشاورزی و منابع طبیعی خوزستان، خوزستان، ایران
2 استاد، گروه مهندسی تولید و ژنتیک گیاهی، دانشکده کشاورزی، دانشگاه علوم کشاورزی و منابع طبیعی خوزستان، خوزستان، ایران
چکیده
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Introduction
In comparison to sensitive genotypes, resistant genotypes have more Stoma closing in stressful conditions. Stress leads to decrease in level, diameter and Stoma in order to improvement of water consumption efficiency and transpiration which also leads to photosynthesis reduction and seed performance, these features have significant and positive correlation with seed performance. Dry weight (DWH) is the key factor that determines the harvest index, which is closely related to the tank capacity. Spraying auxin solution by affecting the cell division and enlargement of endosperm cells or controlling the important growth material towards the destination. and destination capacity are involved, which ultimately leads to increased performance. Auxin hormone is known as a hormone to increase cell elongation, which can ultimately lead to increased performance.
Materials and Methods
This study was performed using split-split plots in a randomized complete block design with three replications in Khuzestan province with the aim of determining the best planting pattern and hormone treatment of rice in two cropping years (2018 and 2019). Three planting methods (dry planting, seedlings planting, direct or common planting), 16 different levels of auxin and salicylic acid hormones in the form of seed priming and different leaf spray treatments with 1 and 2 liters per hectare and different spraying times at the tillering stage and the appearance of panicle were applied to different rice genotypes.
Results and Discussion
The results of combined analysis showed that except for the interactions of the stomatal surface in other cases, the main effects and the interaction of the traits, there is a significant difference in the probability level of one percent. The highest number of stomata was obtained in arid cultivation method and dollar genotype and the highest number and diameter of stomata in submerged cultivation method and red hat genotype were obtained due to the inverse relationship between traits. Among the hormonal treatments, we saw the highest amount of these traits in priming with auxin and salicylic acid due to the optimal compatibility from the earliest stage of growth. The obtained results can be one of the main goals in breeding research and breeding of cultivars with higher resistance to salinity conditions under the in fluence of different hormonal treatments and planting patterns.
Conclusions
In general, Daniel cultivar had the highest grain yield with an average of 7178.50 kg / ha in seedling culture method with hormonal treatment of priming with auxin and salicylic acid.
کلیدواژه‌ها [English]
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