Dynamics of winter barley grain filing
Dinamika nalivanja zrna ozimog dvoredog ječma
Abstract
Kernel weight and grain yield depends on the rate and duration of grain filling (GF). Rate of GF presents the rate of dry matter accumulation per kernel and GF period duration from anthesis to physiological maturity. In order to study the relationships among grain yield and yield components and the rate and duration of GF in winter barley, field experiments were conducted during the 1995-1998 period. A quadratic polynomial was used to describe the relationship between kernel weight and time from anthesis and a linear equation to describe the relationship between kernel water content and time from anthesis. Accumulated growing-degree days (GDD) from anthesis were used as a time scale. The rate and duration of GF were obtained from the fitted curve. Depending on the cultivar and year, rate of GF ranged from 0.058 to 0.082 mg kernel 1GDD-1 and the duration of GF from 505 to 887 GDD. Rate positively (r=0.70) and duration of GF negatively (r=-0.57) effected grain yield. Both rate and durati...on of GF in large extent were influenced by environmental factors. The correlation between rate and duration of GF was negative. The positive correlations between the rate of GF and kernel weight as well as kernel weight and yield enable indirect selection for yield and a high rate of GF via breeding for a larger kernel.
Nakon formiranja broja zrna po klasu, masa zrna zavisi od intenziteta i perioda nalivanja zrna. Intenzitet nalivanja označava količinu akumulirane suve materije u jedinici vremena, dok trajanje nalivanja obuhvata period od cvetanja do fiziološke zrelosti. U ovom radu je ispitivano trajanje i intenzitet nalivanja zrna i sadržaj vode u zrnu tokom perioda nalivanja kod četiri sorte ozimog ječma. Suma aktivnih temperatura (SAT) od cvetanja je korišćena kao vremenska skala. Odnos između mase zrna i SAT je predstavljen kvadratnom jednačinom regresije, a odnos između sadržaja vode u zrnu i SAT linearnom jednačinim regresije. U zavisnosti od sorte i godine, intenzitet nalivanja se kretao 0,058-0,082mg zrno-1_C-1 a trajanje nalivanja 505-887 SAT. Prinos je bio u pozitivnoj korelaciji (r=0,70) sa intenzitetom a u negativnoj korelaciji (r=-0,57) sa dužinom perioda nalivanja. Korelacija između intenziteta i trajanja nalivanja je bila negativna. Pozitivna korelacija između intenziteta i mase zrna, ...kao i mase zrna i prinosa, omogućava indirektno selekciju na prinos i visok intenzitet nalivanja zrna putem selekcije na krupnije zrno.
Keywords:
winter barley (Hordeum vulgare L.) / grain filling / yield / correlation / ozimi ječam (Hordeum vulgare L ) / nalivanje zrna / prinos / korelacijeSource:
Zbornik radova Instituta za ratarstvo i povrtarstvo, 2001, 35, 175-184Publisher:
- Institut za ratarstvo i povrtarstvo, Novi Sad
Collections
Institution/Community
FiVeRTY - JOUR AU - Pržulj, Novo AU - Momčilović, Vojislava AU - Mladenov, Novica PY - 2001 UR - http://fiver.ifvcns.rs/handle/123456789/81 AB - Kernel weight and grain yield depends on the rate and duration of grain filling (GF). Rate of GF presents the rate of dry matter accumulation per kernel and GF period duration from anthesis to physiological maturity. In order to study the relationships among grain yield and yield components and the rate and duration of GF in winter barley, field experiments were conducted during the 1995-1998 period. A quadratic polynomial was used to describe the relationship between kernel weight and time from anthesis and a linear equation to describe the relationship between kernel water content and time from anthesis. Accumulated growing-degree days (GDD) from anthesis were used as a time scale. The rate and duration of GF were obtained from the fitted curve. Depending on the cultivar and year, rate of GF ranged from 0.058 to 0.082 mg kernel 1GDD-1 and the duration of GF from 505 to 887 GDD. Rate positively (r=0.70) and duration of GF negatively (r=-0.57) effected grain yield. Both rate and duration of GF in large extent were influenced by environmental factors. The correlation between rate and duration of GF was negative. The positive correlations between the rate of GF and kernel weight as well as kernel weight and yield enable indirect selection for yield and a high rate of GF via breeding for a larger kernel. AB - Nakon formiranja broja zrna po klasu, masa zrna zavisi od intenziteta i perioda nalivanja zrna. Intenzitet nalivanja označava količinu akumulirane suve materije u jedinici vremena, dok trajanje nalivanja obuhvata period od cvetanja do fiziološke zrelosti. U ovom radu je ispitivano trajanje i intenzitet nalivanja zrna i sadržaj vode u zrnu tokom perioda nalivanja kod četiri sorte ozimog ječma. Suma aktivnih temperatura (SAT) od cvetanja je korišćena kao vremenska skala. Odnos između mase zrna i SAT je predstavljen kvadratnom jednačinom regresije, a odnos između sadržaja vode u zrnu i SAT linearnom jednačinim regresije. U zavisnosti od sorte i godine, intenzitet nalivanja se kretao 0,058-0,082mg zrno-1_C-1 a trajanje nalivanja 505-887 SAT. Prinos je bio u pozitivnoj korelaciji (r=0,70) sa intenzitetom a u negativnoj korelaciji (r=-0,57) sa dužinom perioda nalivanja. Korelacija između intenziteta i trajanja nalivanja je bila negativna. Pozitivna korelacija između intenziteta i mase zrna, kao i mase zrna i prinosa, omogućava indirektno selekciju na prinos i visok intenzitet nalivanja zrna putem selekcije na krupnije zrno. PB - Institut za ratarstvo i povrtarstvo, Novi Sad T2 - Zbornik radova Instituta za ratarstvo i povrtarstvo T1 - Dynamics of winter barley grain filing T1 - Dinamika nalivanja zrna ozimog dvoredog ječma EP - 184 IS - 35 SP - 175 UR - https://hdl.handle.net/21.15107/rcub_fiver_81 ER -
@article{ author = "Pržulj, Novo and Momčilović, Vojislava and Mladenov, Novica", year = "2001", abstract = "Kernel weight and grain yield depends on the rate and duration of grain filling (GF). Rate of GF presents the rate of dry matter accumulation per kernel and GF period duration from anthesis to physiological maturity. In order to study the relationships among grain yield and yield components and the rate and duration of GF in winter barley, field experiments were conducted during the 1995-1998 period. A quadratic polynomial was used to describe the relationship between kernel weight and time from anthesis and a linear equation to describe the relationship between kernel water content and time from anthesis. Accumulated growing-degree days (GDD) from anthesis were used as a time scale. The rate and duration of GF were obtained from the fitted curve. Depending on the cultivar and year, rate of GF ranged from 0.058 to 0.082 mg kernel 1GDD-1 and the duration of GF from 505 to 887 GDD. Rate positively (r=0.70) and duration of GF negatively (r=-0.57) effected grain yield. Both rate and duration of GF in large extent were influenced by environmental factors. The correlation between rate and duration of GF was negative. The positive correlations between the rate of GF and kernel weight as well as kernel weight and yield enable indirect selection for yield and a high rate of GF via breeding for a larger kernel., Nakon formiranja broja zrna po klasu, masa zrna zavisi od intenziteta i perioda nalivanja zrna. Intenzitet nalivanja označava količinu akumulirane suve materije u jedinici vremena, dok trajanje nalivanja obuhvata period od cvetanja do fiziološke zrelosti. U ovom radu je ispitivano trajanje i intenzitet nalivanja zrna i sadržaj vode u zrnu tokom perioda nalivanja kod četiri sorte ozimog ječma. Suma aktivnih temperatura (SAT) od cvetanja je korišćena kao vremenska skala. Odnos između mase zrna i SAT je predstavljen kvadratnom jednačinom regresije, a odnos između sadržaja vode u zrnu i SAT linearnom jednačinim regresije. U zavisnosti od sorte i godine, intenzitet nalivanja se kretao 0,058-0,082mg zrno-1_C-1 a trajanje nalivanja 505-887 SAT. Prinos je bio u pozitivnoj korelaciji (r=0,70) sa intenzitetom a u negativnoj korelaciji (r=-0,57) sa dužinom perioda nalivanja. Korelacija između intenziteta i trajanja nalivanja je bila negativna. Pozitivna korelacija između intenziteta i mase zrna, kao i mase zrna i prinosa, omogućava indirektno selekciju na prinos i visok intenzitet nalivanja zrna putem selekcije na krupnije zrno.", publisher = "Institut za ratarstvo i povrtarstvo, Novi Sad", journal = "Zbornik radova Instituta za ratarstvo i povrtarstvo", title = "Dynamics of winter barley grain filing, Dinamika nalivanja zrna ozimog dvoredog ječma", pages = "184-175", number = "35", url = "https://hdl.handle.net/21.15107/rcub_fiver_81" }
Pržulj, N., Momčilović, V.,& Mladenov, N.. (2001). Dynamics of winter barley grain filing. in Zbornik radova Instituta za ratarstvo i povrtarstvo Institut za ratarstvo i povrtarstvo, Novi Sad.(35), 175-184. https://hdl.handle.net/21.15107/rcub_fiver_81
Pržulj N, Momčilović V, Mladenov N. Dynamics of winter barley grain filing. in Zbornik radova Instituta za ratarstvo i povrtarstvo. 2001;(35):175-184. https://hdl.handle.net/21.15107/rcub_fiver_81 .
Pržulj, Novo, Momčilović, Vojislava, Mladenov, Novica, "Dynamics of winter barley grain filing" in Zbornik radova Instituta za ratarstvo i povrtarstvo, no. 35 (2001):175-184, https://hdl.handle.net/21.15107/rcub_fiver_81 .