作物学报
作物學報
작물학보
Acta Agronomica Sinica
2015年
12期
1858-1869
,共12页
韦还和%孟天瑶%李超%张洪程%史天宇%马荣荣%王晓燕%杨筠文%戴其根%霍中洋%许轲%魏海燕%郭保卫
韋還和%孟天瑤%李超%張洪程%史天宇%馬榮榮%王曉燕%楊筠文%戴其根%霍中洋%許軻%魏海燕%郭保衛
위환화%맹천요%리초%장홍정%사천우%마영영%왕효연%양균문%대기근%곽중양%허가%위해연%곽보위
不同类型品种%甬优538%穗部特征%籽粒灌浆
不同類型品種%甬優538%穗部特徵%籽粒灌漿
불동류형품충%용우538%수부특정%자립관장
Different type rice cultivars%Yongyou 538%Panicle traits%Grain-filling characteristics
以籼粳交超级稻甬优538为试材,常规粳稻镇稻18和杂交籼稻中浙优1号为对照,将穗部分成上部一次枝粳籽粒(UP)、上部二次枝粳籽粒(US)、中部一次枝粳籽粒(MP)、中部二次枝粳籽粒(MS)、下部一次枝粳籽粒(LP)、下部二次枝粳籽粒(LS)6个部分,比较不同类型品种的穗部特征和籽粒灌浆特性。结果表明：(1)两年中甬优538平均产量为12.5 t hm–2,较中浙优1号和镇稻18分别高17.6%和15.2%；每穗粒数和群体颖花量以甬优538最高。(2)单穗重和着粒密度以甬优538最高；甬优538穗部6个部位的籽粒数均显著高于对照品种,且以上部二次枝粳籽粒和中部二次枝粳籽粒数增加最为明显。(3)甬优538中, UP 与 MP、MS 与 US、LP 与 LS 为同步灌浆,但两两之间为异步灌浆。中浙优1号和镇稻18中, UP、US 和 MP 为同步灌浆,而 UP、US、MP 与 LP、LS 为异步灌浆。品种类型间,穗部6个部位米粒终极生长量的平均值以镇稻18最高,最大灌浆速率和平均灌浆速率的平均值为中浙优1号>镇稻18>甬优538,有效灌浆时间为甬优538>镇稻18>中浙优1号。
以秈粳交超級稻甬優538為試材,常規粳稻鎮稻18和雜交秈稻中浙優1號為對照,將穗部分成上部一次枝粳籽粒(UP)、上部二次枝粳籽粒(US)、中部一次枝粳籽粒(MP)、中部二次枝粳籽粒(MS)、下部一次枝粳籽粒(LP)、下部二次枝粳籽粒(LS)6箇部分,比較不同類型品種的穗部特徵和籽粒灌漿特性。結果錶明：(1)兩年中甬優538平均產量為12.5 t hm–2,較中浙優1號和鎮稻18分彆高17.6%和15.2%；每穗粒數和群體穎花量以甬優538最高。(2)單穗重和著粒密度以甬優538最高；甬優538穗部6箇部位的籽粒數均顯著高于對照品種,且以上部二次枝粳籽粒和中部二次枝粳籽粒數增加最為明顯。(3)甬優538中, UP 與 MP、MS 與 US、LP 與 LS 為同步灌漿,但兩兩之間為異步灌漿。中浙優1號和鎮稻18中, UP、US 和 MP 為同步灌漿,而 UP、US、MP 與 LP、LS 為異步灌漿。品種類型間,穗部6箇部位米粒終極生長量的平均值以鎮稻18最高,最大灌漿速率和平均灌漿速率的平均值為中浙優1號>鎮稻18>甬優538,有效灌漿時間為甬優538>鎮稻18>中浙優1號。
이선갱교초급도용우538위시재,상규갱도진도18화잡교선도중절우1호위대조,장수부분성상부일차지갱자립(UP)、상부이차지갱자립(US)、중부일차지갱자립(MP)、중부이차지갱자립(MS)、하부일차지갱자립(LP)、하부이차지갱자립(LS)6개부분,비교불동류형품충적수부특정화자립관장특성。결과표명：(1)량년중용우538평균산량위12.5 t hm–2,교중절우1호화진도18분별고17.6%화15.2%；매수립수화군체영화량이용우538최고。(2)단수중화착립밀도이용우538최고；용우538수부6개부위적자립수균현저고우대조품충,차이상부이차지갱자립화중부이차지갱자립수증가최위명현。(3)용우538중, UP 여 MP、MS 여 US、LP 여 LS 위동보관장,단량량지간위이보관장。중절우1호화진도18중, UP、US 화 MP 위동보관장,이 UP、US、MP 여 LP、LS 위이보관장。품충류형간,수부6개부위미립종겁생장량적평균치이진도18최고,최대관장속솔화평균관장속솔적평균치위중절우1호>진도18>용우538,유효관장시간위용우538>진도18>중절우1호。
A field experiment was conducted using indica-japonica rice Yongyou 538 as the material, conventional japonica rice Zhendao 18, and hybrid indica rice Zhongzheyou 1 as the check. The panicle was separated into six parts, i.e. upper primary branches (UP), upper secondary branches (US), middle primary branches (MP), middle secondary branches (MS), low primary branches (LP), and low secondary branches (LS). We compared the differences in panicle traits and grain-filling characteristics of different cultivars of rice types. The main results were as follows: (1) Yongyou 538 had an average yield of 12.5 t ha–1 across two years, which was 17.6% and 15.2% higher than that of Zhongzheyou 1 and Zhendao 18, respectively, Yongyou 538 also had the highest spikelets per panicle and total spikelets among the three varieties. (2) Yongyou 538 had higher grain weight per panicle and grain density, as well as higher number of grains in the six corresponding parts of panicle compared with Zhongzheyou 1 and Zhendao 18, especially in the upper secondary branches and the middle secondary branches of panicle. (3) For Yongyou 538, grain-filling processes were synchronous types between UP and MP, US and MS, and LP and LS, but were asynchronous types between UP and MP, US and MS, and LP and LS. For Zhongzheyou 1 and Zhendao 18, grain-filling processes of UP, US, and MP were synchronous types, while asynchronous types existed between UP, US, MP and LP, LS. Among the varieties, the mean final weight of a kernel in the six parts of the panicle in Zhendao18 was the highest, mean value of maximum grain-filling rate and mean grain-filling rate showed Zhongzheyou 1>Zhendao 18>Yongyou 538, while effective grain-filling period showed Yongyou 538>Zhendao 18>Zhongzheyou 1.
