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水稻秧苗各部器官的建成,都要经历一个分化生长的过程。秧苗素质的优劣,对正在分化中的器官起着很大程度的制约作用,并影响这些器官出生后的功能。叶蘖同伸壮秧,以蘖代苗,少用秧苗,节省种子:移栽后,新根出生早而多、吸肥力强,返青快,分蘖早、穗多;茎生长粗短,体内大维管束多,易形成大穗,粒多粒饱,产量高,但我国熟制复杂,品种类型繁多,不同类型品种,对秧龄长短,秧苗形态以及生理状态等方面均有一定的要求,用叶龄模式情导育秧,对适龄的壮秧及其培育的关键技术,提出了明确的指标和要求。
The construction of various organs of rice seedlings, have to go through a process of differentiation and growth. The quality of seedlings, the differentiation of organs plays a large degree of constraints, and affect the function of these organs after birth. Leaf tiller with stretch seedling, tiller on behalf of the seedlings, seedlings less, save seed: transplanting, the new root is born earlier and more, strong absorption and fertility, returning fast green, early tillering, spike and more; stems stubby, large body Many vascular bundles, easy to form large spike, grain and more grain, high yield, but the complexity of our country cooked, variety types, different types of varieties of seedling age, seedling morphology and physiological status, etc. have certain requirements, with leaves Age-induced emotional guidance seedlings, the age of the strong seedling and its key technology, put forward a clear indicators and requirements.