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Seed yield and its components of indeterminate and determinate lines in recombinant inbred lines of soybean.

Kato S, Fujii K, Yumoto S, Ishimoto M, Shiraiwa T, Sayama T, Kikuchi A, Nishio T - Breed. Sci. (2015)

Bottom Line: The present study was conducted to evaluate the benefits of indeterminate growth habit in breeding to improve yield potential of Japanese soybean varieties, which exclusively have determinate growth habit.The SW of early indeterminate lines was significantly higher than that of early determinate ones in Akita, but not in Kyoto.These results suggest that the indeterminate growth habit is an advantageous characteristic in breeding for high yield of early maturing soybean varieties in the Tohoku region.

View Article: PubMed Central - PubMed

Affiliation: National Agriculture and Food Research Organization (NARO) Tohoku Agricultural Research Center , Uenodai, Kariwano, Daisen, Akita 019-2112 , Japan.

ABSTRACT
The present study was conducted to evaluate the benefits of indeterminate growth habit in breeding to improve yield potential of Japanese soybean varieties, which exclusively have determinate growth habit. Two populations of recombinant inbred lines (RILs) derived from crosses between determinate Japanese cultivars and indeterminate US cultivars were grown in Akita and Kyoto, and seed weight per plant (SW) and its components were compared between indeterminate and determinate RILs. The difference of SW between the two growth habits in RILs varied depending on maturation time. The SW of early indeterminate lines was significantly higher than that of early determinate ones in Akita, but not in Kyoto. Among yield components, the number of seeds per pod was constantly larger in indeterminate lines than that in determinate ones irrespective of maturation time. The number of seeds per plant and the number of pods per plant of the indeterminate lines were greater than those of the determinate lines in early maturation in Akita. These results suggest that the indeterminate growth habit is an advantageous characteristic in breeding for high yield of early maturing soybean varieties in the Tohoku region.

No MeSH data available.


Related in: MedlinePlus

Relationship of seed weight per plant (SW) with maturation time (MT) in OA-RILs in Akita in 2009. Regression of SW to MT was analyzed in each group of indeterminate (IND) and determinate (DET) lines. Regression analysis y = bx + a, IND R2: 0.25***, b = 0.38 ± 0.06; DET R2: 0.42***, b = 0.57 ± 0.08
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f2-65_154: Relationship of seed weight per plant (SW) with maturation time (MT) in OA-RILs in Akita in 2009. Regression of SW to MT was analyzed in each group of indeterminate (IND) and determinate (DET) lines. Regression analysis y = bx + a, IND R2: 0.25***, b = 0.38 ± 0.06; DET R2: 0.42***, b = 0.57 ± 0.08

Mentions: The relationship between SW and MT in OA-RILs grown in Akita in 2009 is shown in Fig. 2 to determine the differences of this relationship between IND and DET. A regression line of SW at maturation time is shown for each growth habit. There was a positive correlation between MT and SW and its correlation coefficient was significant at 0.1% (Fig. 2). As shown by two regression lines, SW was much heavier in IND at the early MT and the difference was large. However, when MT was later, the difference became smaller.


Seed yield and its components of indeterminate and determinate lines in recombinant inbred lines of soybean.

Kato S, Fujii K, Yumoto S, Ishimoto M, Shiraiwa T, Sayama T, Kikuchi A, Nishio T - Breed. Sci. (2015)

Relationship of seed weight per plant (SW) with maturation time (MT) in OA-RILs in Akita in 2009. Regression of SW to MT was analyzed in each group of indeterminate (IND) and determinate (DET) lines. Regression analysis y = bx + a, IND R2: 0.25***, b = 0.38 ± 0.06; DET R2: 0.42***, b = 0.57 ± 0.08
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4430510&req=5

f2-65_154: Relationship of seed weight per plant (SW) with maturation time (MT) in OA-RILs in Akita in 2009. Regression of SW to MT was analyzed in each group of indeterminate (IND) and determinate (DET) lines. Regression analysis y = bx + a, IND R2: 0.25***, b = 0.38 ± 0.06; DET R2: 0.42***, b = 0.57 ± 0.08
Mentions: The relationship between SW and MT in OA-RILs grown in Akita in 2009 is shown in Fig. 2 to determine the differences of this relationship between IND and DET. A regression line of SW at maturation time is shown for each growth habit. There was a positive correlation between MT and SW and its correlation coefficient was significant at 0.1% (Fig. 2). As shown by two regression lines, SW was much heavier in IND at the early MT and the difference was large. However, when MT was later, the difference became smaller.

Bottom Line: The present study was conducted to evaluate the benefits of indeterminate growth habit in breeding to improve yield potential of Japanese soybean varieties, which exclusively have determinate growth habit.The SW of early indeterminate lines was significantly higher than that of early determinate ones in Akita, but not in Kyoto.These results suggest that the indeterminate growth habit is an advantageous characteristic in breeding for high yield of early maturing soybean varieties in the Tohoku region.

View Article: PubMed Central - PubMed

Affiliation: National Agriculture and Food Research Organization (NARO) Tohoku Agricultural Research Center , Uenodai, Kariwano, Daisen, Akita 019-2112 , Japan.

ABSTRACT
The present study was conducted to evaluate the benefits of indeterminate growth habit in breeding to improve yield potential of Japanese soybean varieties, which exclusively have determinate growth habit. Two populations of recombinant inbred lines (RILs) derived from crosses between determinate Japanese cultivars and indeterminate US cultivars were grown in Akita and Kyoto, and seed weight per plant (SW) and its components were compared between indeterminate and determinate RILs. The difference of SW between the two growth habits in RILs varied depending on maturation time. The SW of early indeterminate lines was significantly higher than that of early determinate ones in Akita, but not in Kyoto. Among yield components, the number of seeds per pod was constantly larger in indeterminate lines than that in determinate ones irrespective of maturation time. The number of seeds per plant and the number of pods per plant of the indeterminate lines were greater than those of the determinate lines in early maturation in Akita. These results suggest that the indeterminate growth habit is an advantageous characteristic in breeding for high yield of early maturing soybean varieties in the Tohoku region.

No MeSH data available.


Related in: MedlinePlus