Pham thi DaoHari Har Ram.Reproductiv e phases in relation toyield and seed quali ty in soybean[J].Soybean Science,1999,18(02):130-133.[doi:10.11861/j.issn.1000-9841.1999.02.0130]
大豆生殖生长阶段与产量及种子质量的相关研究
- Title:
- Reproductiv e phases in relation toyield and seed quali ty in soybean
- 文献标志码:
- A
- 摘要:
- 本试验的目的是明确: ( 1)株型对各生殖生长阶段长度的影响; ( 2)各生殖生长阶段长度的遗传力及其与产量和种子质量的相关。试验用25个生育期不同的品种于1992和1993年的雨季进行。除R1- R2 期外,株型不影响其它生殖生长阶段长度。所有生殖生长阶段长度的遗传力都较高(> 0. 74)。鼓粒期( R2 - R7 )长度与种子寿命呈不显著负相关,与种子产量及种子大小呈不显著正相关。总生殖生长期长度可作为选择长鼓粒期品系的初始选择指标。种子寿命与开花前日数间存在显著的正相关。
- Abstract:
- This ex periment wa s conducted to determine( i ) The ef fect of pla nt type on va rio usreproductiv e phase interval s, ( ii ) Heri tabi li ty o f va rious reproductive phase interv alsand thei r rela tionship wi th yield a nd seed quali ty. Tw enty fiv e v arieties, di ffering inthei r crop duration w ere ev aluated ov er 2 years v i z. rainy season 1992 a nd 1993.Plant type did ont af fect reproductive phase interval s except R1 - R2 period. Heritability estimates fo r all the reproductiv e phase interv als w ere rela tively high ( 0. 74) .The lengh of fi lling period ( R5 - R7 ) was nega tively , nonsigni fica nt ly co rrela ted w ithseed long evi ty and posi tiv ely , no nsig nificant ly co rreated w ith seed yield and seed si ze.The tota l reproductiv e interv al could be used as ini tial selectio n cri terion for identi fyinglines wi th lo ng seed filling po riod. Seed lo ng evi ty w as posi tiv ely , signi fica nt ly co rrelatedw ith day s to f low eringHigh yield and go od seed quali ty are desi table t rai ts in soybea n, Grea ter seed yieldis related to a lo ng er repro ductiv e o f seed filling period and determina te habi t g row th ofplant , how ev er, Wilcox ( 1980) repo rted similar yield of semideterminate a nd indeterminatewhen both the ty pes had equal ma turi ty. Go ley et al. ( 1986) found that stem termination types did no t dif fer sig nificantly fo r yield. The high yield po tential should beaccompanied wi th goo d quali ty since low seed quali ty will lead to poo r g ermina tion, slowemerg ence, and inadequa te pla nt stand resul ting into w eed problems and reduced seedyieldSev eral w orkers hav e repo rted that soy bean seed a t tains i ts hig hest po tential quali tya t physio logical ma turi ty. Thus repro ductiv e stag e interv als assume sig nificance in relationto seed quali ty. Vaug ha n ( 1987) found that the longer the period R6- R7 , the largerseed o btained, a nd hence poo rer the seed quality. So ng et al. ( 1988) also observ edposi tiv e cor relation betw een f rui ting period and seed w eigh t while Pfei ffer and Eg li( 1998) found tha t seed si ze w as rarely co rrelated wi th fi lling period. In view o f these conflicting repo rt s a nd co nsidering the impor tance o f seed quality the present inv estig ationw as co nducted to determine the ef fect of plant g row th habi t o n va rio us reproductiv epha se interv als; heri tabili ty o f reproductiv e phase intervals and their rela tionship toyield and seed quality
参考文献/References:
[1 ] Anand, S. C. and Tor ri e, J. H. 1963, Heri tabili ty of yi eld and other t rait s and in terrel ationsh ip amongt rai ts in the F3 and F4 generati ons of three soybean crosses, Crop Sci. 3: 508- 511