+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Response of oats to water deficit part 2 growth and yield characteristics



Response of oats to water deficit part 2 growth and yield characteristics



Agronomy Journal 69(3): 361-364



The effect of a 9-11-day water stress period imposed under a field environment upon the growth and yield components of spring oats (Avena sativa L. 'Jaycee') was determined. The crop was grown on pachic udic haploborolls soil (Lismore silty clay loam) in large pots buried in the field under a natural environment. The water stress periods were timed to occur during the boot stage and the anthesis through early grain formation stage (separately and in combination). Water stress at either stage decreased plant height and the number of florets per panicle. Plants stressed at anthesis through early grain formation had significantly more floret sterility and a fewer number of heads at maturity. Water deficits at all stages caused a marked decline in the yield of straw, tops without panicles, panicles, kernels, and dehulled kernels. Stress at the booting and the anthesis through grain filling depressed kernel yield 20% and 58%, respectively, whereas the combined stress reduced kernel yield 67%. Plants growing under soil water stress conditions appeared to root to a greater depth. On rewatering, the stressed plants, particularly those stressed in the boot stage, showed accelerated growth and profuse tillering. Oats are more sensitive to soil water deficits which occur during the anthesis through early grain formation stage than during the boot stage. Cultural practices and water management should be so implemented to avoid soil water stress during the anthesis through early stage of grain formation.

Please choose payment method:






(PDF emailed within 1 workday: $29.90)

Accession: 006326194

Download citation: RISBibTeXText


Related references

Response of oats to water deficit part 1 physiological characteristics. Agronomy Journal 69(3): 357-360, 1977

Response of water deficit and nitrogen levels on growth, yield attributes and yield of rice (Oryza sativa L.). 2008

Sugarbeet leaf growth and yield response to soil water deficit. African Crop Science Journal 10(1): 51-66, 2002

Studies on hygrotype and xerotype oats. II. The effect of the amount of soil water before heading on the growth and yield of oats.. Hokkaido Nogyo Shikenjo Iho/Res. Bull. Hokkaido agric. Exp. Sta, 67, 48-54, 1954

Response of leaf water status, stomatal characteristics, photosynthesis and yield in black gram and green gram genotypes to soil water deficit. Functional Plant Biology 42(10): 1010-1018, 2015

Quantitative response of greenhouse tomato yield and quality to water deficit at different growth stages. Agricultural Water Management 129: 152-162, 2013

Effect of Deficit Irrigation on the Growth, Water Use Characteristics and Yield of Cotton in Arid Northwest China. Pedosphere 25(6): 910-924, 2015

Comparative studies of introduced oats avena sativa l. for forage production ii. growth characteristics and forage yield of spring oats. Korean Journal of Animal Science 30(4): 269-275, 1988

Effects of soil water deficit at different growth stages on rice growth and yield under upland conditions. 2. Phenology, biomass production and yield. Field Crops Research 48(1): 47-55, 1996

Yield response, water productivity, and seasonal water production functions for maize under deficit irrigation water management in southern Taiwan. Plant Production Science 20(4): 353-365, 2017

Yield and yield components response of wheat (Triticum aestivum L.) genotypes grown under different soil water deficit conditions. Acta Agronomica Hungarica 46(1): 45-51, 1998

Combining field performance with controlled environment plant imaging to identify the genetic control of growth and transpiration underlying yield response to water-deficit stress in wheat. Journal of Experimental Botany 66(18): 5481-5492, 2015

Soyabean yield performance and growth characteristics in response to underground water table depth. Korean Journal of Crop Science 42(3): 367-372, 1997

Response of growth characteristics and yield in mungbean (Vigna radiata L.) to irrigation water volume. Bulletin of the Institute of Tropical Agriculture, Kyushu University 25: 77-84, 2002

Effects of water deficit stress on yield, yield components and phenology of canola (Brassica napus L.) at different growth stages. Journal of Food Agriculture and Environment 9(3-4): 506-509, 2011