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[求助]
水稻移栽后5-7天对应的BBCH编号是多少？求专业人士解答 已有1人参与
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写报告需要这个BBCH编号，但是本人不是这个专业的，手上有BBCH编号表但是不知道水稻移栽5-7天是个什么状态，求解答 发自小木虫Android客户端 |
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下载文献，BBCH编码系统及其在我国农药管理体系中的应用，学习。 BBCH编号系统如下： BBCH code是国际上通用的一种描述植物生育期的方式。从00-99，十位一递增。以水稻为例，00就是种子的状态。1X就是秧苗长叶子的状态，X是几就代表几片叶。2X是分蘖期。 下为水稻生育期完整的BBCH scale 0: Germination 00 Dry seed (caryopsis) 01 Beginning of seed imbibition 03 Seed imbibition complete (pigeon breast) 05 Radicle emerged from caryopsis 06 Radicle elongated, root hairs and/or side roots visible 07 Coleoptile emerged from caryopsis (in water-rice this stage occurs before stage 05) 09 Imperfect leaf emerges (still rolled) at the tip of the coleoptile 1: Leaf development 10 Imperfect leaf unrolled, tip of first true leaf visible 11 First leaf unfolded 12 2 leaves unfolded 13 3 leaves unfolded 1 . Stages continuous till . . . 19 9 or more leaves unfolded 2: Tillering 21 Beginning of tillering: first tiller detectable 22 2 tillers detectable 23 3 tillers detectable 2 . Stages continuous till ... 29 Maximum number of tillers detectable 3: Stem elongation 30 Panicle initiation or green ring stage: chlorophyll accumulates in the stem tissue, forming a green ring 32 Panicle formation: panicle 1–2 mm in length 34 Internode elongation or jointing stage: internodes begin to elongate, panicle more than 2 mm long (variety-dependent) 37 Flag leaf just visible, still rolled, panicle moving upwards 39 Flag leaf stage: flag leaf unfolded, collar regions (auricle and ligule) of flag leaf and penultimate leaf aligned (pre-boot stage) 4: Booting 41 Early boot stage: upper part of stem slightly thickened, sheath of flag leaf about 5 cm out of penultimate leaf sheath 43 Mid boot stage: sheath of flag leaf 5–10 cm out of the penultimate leaf sheath 45 Late boot stage: flag leaf sheath swollen, sheath of flag leaf more than 10 cm out of penultimate leaf sheath 47 Flag leaf sheath opening 49 Flag leaf sheath open 5: Inflorescence emergence, heading 51 Beginning of panicle emergence: tip of inflorescence emerged from sheath 52 20% of panicle emerged 53 30% of panicle emerged 54 40% of panicle emerged 55 Middle of panicle emergence: neck node still in sheath 56 60% of panicle emerged 57 70% of panicle emerged 58 80% of panicle emerged 59 End of panicle emergence: neck node level with the flag leaf auricle, anthers not yet visible 6: Flowering, anthesis 61 Beginning of flowering: anthers visible at top of panicle 65 Full flowering: anthers visible on most spikelets 69 End of flowering: all spikelets have completed flowering but some dehydrated anthers may remain 7: Development of fruit 71 Watery ripe: first grains have reached half their final size 73 Early milk 75 Medium milk: grain content milky 77 Late milk 8: Ripening 83 Early dough 85 Soft dough: grain content soft but dry, fingernail impression not held, grains and glumes still green 87 Hard dough: grain content solid, fingernail impression held 89 Fully ripe: grain hard, difficult to divide with thumbnail 9: Senescence 92 Over-ripe: grain very hard, cannot be dented by thumbnail 97 Plant dead and collapsing 99 Harvested product |
2楼2017-10-28 18:07:47