1) spikelets per panicle
着粒数
1.
A highly significant correlation was observed between spikelets per panicle and grain filling rate and therefore the former can replace the latter as the indicator in the test of grain plumpness.
结果表明,着粒数是影响籽粒充实度的关键因子,结实率可代替充实率作为籽粒充实度的测试指标,在重穗型杂交水稻育种中选育组合的最大着粒
2) Grain density per panicle
着粒密度
3) graining position
着粒位置
4) grain setting rate
着粒率
1.
5︰1 or more, heavy single tiller, thick tiller base, and heavy tiller per unit length; high grain setting rate at secondary branch; resistant t.
5:1、单茎重、茎基粗、单位长度茎秆重、穗部二次枝梗着粒率高、穗粒结构协调、抗当地主要病害、活秆成熟和耐寒性强等主要参数 ,即可在早期选育出具有高产性状的直立穗型水稻品种。
补充资料：近端着丝粒染色体
近端着丝粒染色体
acrocentric chr?omosome
如果着丝粒位于染色体纵轴的7/8至末端处，就称为近端着丝粒染色体。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。